Service Manual

Technical Marketing,

Barcelona Division, Hewlett-Packard Espanola, S.A. Avda. Graells, 501

08190 Sant Cugat del Valles Spain

Service Manual

Using this Manual

Purpose

This Service Manual contains information necessary to test, calibrate and service:

nHP DesignJet 1050C Printer (Model C6074A)

nHP DesignJet 1055CM Printer (Model C6075A)

For information about using these printers, refer to the corresponding User and Quick Reference Guides.

Readership

The procedures described in this Service Manual are to be performed by HP Certified service personnel only.

Part Numbers

Part Numbers for Printer options, accessories and service parts are located in Chapter 7.

Conventions

A small arrow ??? is used to indicate other parts of the Service Manual where you can find information related to the topic you are consulting.

Table of Contents

Table of Contents

Troubleshooting 1-1

Introduction 1-2

Troubleshooting System Error Codes 1-2 Performing a Service Test on a Failed Assembly 1-3 Performing the Necessary Service Calibrations 1-3 Solving Image Quality Problems 1-3

Front-Panel LEDs Flash Briefly at Power ON & Nothing Else Happens 1-4 The Printer does not Power ON 1-5

ALL the Front-Panel LEDs are Lit but Nothing Else Happens 1-5 One of the Print Quality LEDs on the Front Panel is Lit (and nothing else) and the "SELF TEST..." Message Remains on the Front Panel 1-5 The Printer Continuously Rejects Printheads 1-6

Cover Sensors are not Working 1-6

The Line Sensor has Problems Detecting Media 1-6 Troubleshooting Media Jams/Printhead Crashes 1-7 Troubleshooting Shutdowns 1-7

Problems with the Vacuum Fan 1-9

Vacuum suction much lower at high altitudes 1-9

Bin marks on prints done on HP High Gloss media 1-9

Printhead Crashes/Smears on High Density Prints Using Coated Media 1-10 Color changes when stacking prints done on HP High Gloss Media 1-10 HP-GL/2 color differences in different HP DesignJet Printers 1-11 Scratches on prints done on NTP, Vellum and HP High Gloss media 1-11 Banding at variable extreme environmental conditions 1-12 Banding due to Ink Cartridge replacement while printing 1-12 Long term bleed and hue shift on HP High Gloss media 1-12 Lower image gloss directly after printing on HP High Gloss Photo Paper 1-13 34" Rice Paper not supported 1-13

Cut Sheet rice paper loading failure 1-13

Worm marks on HP Coated media with light area fills 1-13 Solving Media-Handling Problems 1-14

How to Navigate through the Front-Panel Menu 1-15 Service Configuration Print 1-19

Table of Contents

System Error Codes 2-1

Introduction 2-2

Continuable and Non-Continuable Error Codes 2-2

System Error Codes During Initialization 2-18

HP No.80 Ink Supplies Troubleshooting 3-1

What are HP No.80 Supplies? 3-2

Ink Cartridges 3-2

Printheads and Printhead Cleaners 3-2

Identifying the Components 3-3

General Information About HP No.80 Supplies 3-4

Some General Precautions When Handling HP No.80 Supplies 3-5

Priming the Ink System 3-6

When Should You Replace the HP No.80 Supplies? 3-6

The Front Panel Display 3-7

Obtaining Ink Cartridge Information 3-8

Obtaining Printhead Information 3-9

Ink Cartridge Status Messages 3-11

Ink Cartridge Status While Printing 3-11

Ink Cartridge Status While Replacing 3-12

Printhead Status Messages While Printing 3-13

Printhead Status Messages While Replacing 3-15

Summary of Solving HP No.80 Supplies Problems 3-17

Carriage Interconnect Wiper 3-18

Table of Contents

Service Tests and Utilities 4-1

Service Tests (Diagnostics) 4-3

Entering the Service Tests Menu 4-4

1.Electronic Systems 4-5

2.EIO Card 4-10

3.Hard Disk Drive 4-12

4.Ink Pressure System 4-14

5.Scan Axis 4-17

6.Paper Axis 4-20

7.Drop Detector 4-22 Service Utilities 4-25

Entering the Service Utilities Menu 4-26

1.Tubes Purge 4-28

2.Release Info 4-32

3.Set Asian PS Fonts 4-33

4.Printer Model Type 4-35

5.Overdrive Cleaning 4-37

6.EEROM Utilities 4-38

7.Printhead Check 4-41

8.Mon. Mode Baud Sel. 4-42

Service Calibrations 5-1

Service Calibrations 5-2

Entering the Service Calibrations Menu 5-4

1.Accuracy Calibration 5-6

2.Line Sensor 5-9

3.Service Station 5-11

4.Roller Mark Position 5-13

5.Pen to Paper Spacing 5-15

6.Color to Color calibration 5-16

7.Calibrations Backup 5-19

8.Pen Alignment 5-22

Carriage Height Calibration 5-24

Table of Contents

Print Quality 6-1

Print Quality Troubleshooting Checklist 6-2

Print Modes 6-3

How to Use the Print Quality Test 6-4

What is the Print Quality Test? 6-4

Considerations for Printing the Print Quality Test. 6-4

Printing the Print Quality Test 6-4

Nozzle Print Test 6-6

How to fix the Nozzle Defects 6-7

Color Alignment Print Test 6-7

Solving the Color Alignment Problem 6-8

Overall Print Quality Test in BEST mode 6-9

What is Banding? 6-9

Solving the Banding Problem 6-10

Aligning the Printheads 6-12

Service Accuracy Calibration 6-12

Troubleshooting Print Quality Problems 6-13

Problems with Stepped Lines 6-13

Problems with printing lines 6-14

Problems with Color-to-Color Alignment 6-15

Problems with Horizontal Lines (Banding) 6-17

No Printing Defects Found in the Print Quality Test 6-21

Solving Color Accuracy problems 6-22

Color Consistency problems 6-22

Long Term Color Bleeding (Glossy Papers) 6-22

Color Accuracy Configuration 6-23

Media 6-24

There are Smears or Scratching on the Printed Media 6-24

Table of Contents

Parts and Diagrams 7-1

Printer Support 7-2

Rear Covers 7-4

Electronics Module 7-6

Right Hand Cover 7-8

Left Hand Cover and Window 7-10

Right Hand Assemblies 7-12

ISS and APS Assembly 7-14

Clutch Assembly 7-16

Carriage Assembly 7-18

Scan-Axis Assemblies 7-20

Drive Roller and ARSS Miscellaneous Parts 7-22

Paper Path Assemblies 7-24

Pinch Assembly 7-26

Drive Roller Assemblies 7-28

Center Guide and Media Sensor 7-30

Tubes Guide Assemblies 7-32

Ordering Accessories 7-34

Removal and Installation 8-1

Introduction 8-2 Safety Precautions 8-2

Electrostatic Discharge (ESD) Precautions 8-3 Required Tools 8-3

Right Hand Cover 8-4 Front Panel Assembly 8-6

Right Hand Trim and Window Switch 8-7 Service Station Assembly 8-8

Drop Detector Assembly 8-10 Vacuum Fan 8-11

Paper-axis Motor Assembly 8-12 Left Hand Cover 8-13

Left Hand Trim Assembly 8-18

Ink Supply Station Assembly (ISS) 8-19 Air Pressurization System (APS) 8-20

Clutch Assembly and left hand miscellaneous parts 8-21 Tail Deflectors and Rear Platen 8-23

Left and Right Rear Covers 8-24

Table of Contents

Electronics Module 8-25

Media Sensor 8-29

Window 8-30

Top Cover 8-31

Back Cover 8-32

Scan-axis Motor Assembly 8-33

Encoder Strip 8-34

Tensioner 8-37

Trailing Cable 8-39

Cutter Assembly 8-42

Carriage Assembly and Belt 8-44

Tubes System Assembly 8-53

Ink Leak Detector Assembly 8-60

Front Platen Assembly 8-62

Platen Assembly 8-63

Paper Entry Assembly 8-64

Roller Guide 8-66

Media Holder Strip 8-69

Drive Roller 8-70

Center Guide 8-71

Pinch-Wheel Assembly and Cam 8-73

Preventive Maintenance 9-1

Moisture on the Printer 9-2

Noisy Carriage Bushing 9-2

Belt Swelling 9-2

Cleaning the Printer 9-2

General Cleaning 9-2

Cleaning the Overdrive 9-3

Scheduled Maintenance 9-3

Level of Printer Usage 9-3

Scan-axis Maintenance 9-4

Table of Contents

Functional Overview 10-1

Introduction 10-2

HP DesignJet 1050C Printer 10-2 HP DesignJet 1055CM printer 10-2 Electrical System 10-2

Power Supply Unit (PSU) 10-3 Soft Power-Off Switch 10-4 Front Panel 10-4

Ink Delivery System (IDS) 10-5 Ink Supply Station (ISS) 10-5 Tubes System 10-6

Air Pressurization System (APS) 10-7 Ink Level Sense (ILS) 10-7

Leak Detect System (LDS) 10-8 Service Station 10-9

Print Head Cleaner (PHC) 10-9 Printer Specifications 10-12 Printable Area 10-16

Interface Specifications 10-17 Regulatory Notices 10-18

To Obtain a Material Safety Data Sheet (MSDS) 10-18 Sound 10-18

Electro-Magnetic Compatibility (EMC) 10-18 VCCI Class A and Class B (Japan) 10-21 Declaration of Conformity 10-22 www.designjet-online.hp.com 10-23

Glossary

Index

Table of Contents

Troubleshooting

Guide to Troubleshooting the Printer

Introduction

This chapter will guide you through the relevant steps to take when troubleshooting the printer.

Troubleshooting System Error Codes

Chapter 2 - System Error Codes contains a list of system error codes and their respective descriptions and recommended corrective actions. Only try one recommended action at a time and check if the error code has disappeared.

If you have an error code which is not documented in this Service Manual or you have an error which you cannot resolve, then report the error to the HP Response Center or the nearest HP Support Office. When reporting the error, have the following information ready:

nModel and Serial Number of the printer.

nWhich firmware revision the printer is using (See Note below). Check firmware in Utilities / Statistics / Code rev.

nThe complete error number (See Note below).

nThe Service Configuration Print ??? Page 1-19

nThe Current configuration sheet.

nWhich software application the customer is using (name, version, etc.).

Troubleshooting

Front-Panel LEDs Flash Briefly at Power ON &

Nothing Else Happens

The Power Supply detects a Short and shuts down the Power.

1The Hard Disk Drive or the Network Card could be faulty. Troubleshoot the problem as follows:

a If the Printer has a Hard Disk Drive and/or a Network card installed, switch the Printer OFF from the back of the Printer, and remove them both.

b Switch the Printer ON again.

c If the Printer functions correctly now, switch the Printer OFF again and reinstall the Network Card correctly, making sure that the two installation screws are completely tightened.

2Make sure that none of the cables connected to the Electronics Module have been pinched between the cover and the sideplate.

Troubleshooting

The Printer does not Power ON

1Check that the power cord is connected correctly to the Printer and to the Power Socket.

2Check that the Firmware DIMM is installed correctly in the correct slot (the first slot from the right) at the back of the Printer.

3Check that the Power Switch on the BACK of the Printer is in the ON position.

4Check that the Front-Panel Cable is correctly connected to the Electronics Module. Also make sure that the Front-Panel cable is not damaged.

ALL the Front-Panel LEDs are Lit but Nothing Else Happens

The Firmware DIMM is NOT correctly installed.

1Power OFF the Printer from the back and disconnect the power cord. Reseat the Firmware DIMM (the first slot from the right) making sure that it is installed correctly.

One of the Print Quality LEDs on the Front Panel is Lit (and nothing else) and the "SELF TEST..." Message Remains on the Front Panel

One of the DRAM DIMMs is NOT correctly installed or Faulty.

1Power OFF the Printer from the back and disconnect the power cord. Reseat both Firmware DIMMs (the first two slots from the left) making sure that they are installed correctly. If reseating the DRAM DIMMs does not solve the problem, replace them instead.

Troubleshooting

The Printer Continuously Rejects Printheads

1Clean the flex contacts on the Printhead and in the Carriage Assembly using the Carriage Interconnect Wiper (Refer to Chapter 3) and try again.

2If ALL the Printheads are rejected (the status message on the Front

Panel does NOT show "OK" for all the Printheads) then perform the Electronic Systems Test ??? Page 4-5.

Cover Sensors are not Working

1Check if the faulty sensor is installed correctly.

2Check if the cable for the faulty sensor is connected correctly.

3Replace the faulty Sensor.

The Line Sensor has Problems Detecting Media

1Check the type of media that is being used since the Line sensor may have problems detecting transparent media or some types of Non-HP media. Try loading white HP media in to the Printer and check if the Line sensor detects it.

2Excessive ink deposits on the Platen surface can fool the sensor by reflecting the light. Clean the Platen.

3The Line Sensor is not calibrated correctly. Perform the Line Sensor calibration ??? Page 5-9.

4The Line Sensor is damaged or faulty. Replace the Carriage Assembly ??? Page 8-44.

The failure modes "media jam" and "head crash" are grouped together because in many cases a media jam causes the media to lift up into the carriage path and cause a head crash, thus causing many media jam failures to be reported as head crashes.

1Did the media jam occur when loading media?

n If the client has had media jams, it is common for pieces of media to get stuck in the media path. Clear the media path.

2Is the customer using non-HP media?

n The use of non-HP media can easily be the cause of media jams and head crashes (especially head crashes because HP media is specially formulated to avoid cockle, one of the primary causes of head crashes). If the media is not HP approved, advise the customer to use HP media and check to see if the problem is now solved.

3The Carriage is at the incorrect height in relation to the Center Platen. Adjust the carriage to the correct height ??? Page 5-24 and try to load the media again.

4Check that the Vacuum Fan works correctly - Refer to Page 1-9, Problems with the Vacuum Fan.

Troubleshooting Shutdowns

If a shutdown occurs, you will get the message "Switch Power Off" followed by:

nCheck Printhead Cleaner Path.

nCheck Paper Path.

nCheck Printhead Path (followed by (1), (2) or (3)).

A shutdown in each path will require different steps to resolve the

Troubleshooting

Printhead Cleaner Path

1Open the right door of the printer and check for any visible obstacles restricting the movement of the Service Station. Manually move the Service Station, checking for smooth and free movement.

Paper Path

1Open the Window and check for any visible obstacles restricting the movement of the Drive Roller. If there is a wrinkled mass of media inside the paper path, lift the Pinch wheels (using the Media Load

Handles) and clear the obstruction. If you cannot reach the media, remove the Electronics Module (??? Page 8-25) and the Roller Guide (??? Page 8-66) from the Rear of the Printer to gain better access.

2If this shutdown happens at the end of a Roll of Media, it could be because the media is stuck firmly to the Roll. Lift the Pinch wheels (using the Media Load Handles) and pull the media clear.

3Replace media spindle if broken.

4Replace the Paper-Axis Motor ??? Page 8-12.

Printhead Path

When a shutdown occurs in the Printhead path, you will get the message "Switch Power Off / Check Printhead Path (*). The (*) will be a number, which will give an indication on where the failure occurred:

PWM Shutdown (1) and Energy Shutdown (3)

1Clean Slider Rods and Apply Oil along the complete axis of the Slider Rods. After applying the Oil, perform the Scan-Axis Test ??? Page 4-17 and check that the values are within the given limits.

2Replace the Scan-Axis Motor ??? Page 8-33.

Velocity Shutdown (2)

1Open the Window and check for any visible obstacles restricting the movement of the Carriage Assembly. Try and move the Carriage Assembly manually, checking for smooth and free movement.

2Check that the Encoder Strip is clean. If necessary, clean Encoder Strip using a damp cloth.

Troubleshooting

Problems with the Vacuum Fan

If you have problems loading either Roll or Sheet Media, then there could be a problem with the Vacuum Fan. To verify if there really is a problem with the Vacuum Fan, try the following:

1With the Printer ON, open the Window of the Printer and place a sheet of HP High Gloss Photo Paper (must be D-Size), aligned with the blue lines on the Center Platen. If the Vacuum Fan holds the sheet in place, and then loads it correctly, then the Vacuum Fan functions correctly. If the Vacuum Fan does not hold the sheet in place (no suction), then try the following:

n Check that the holes in the Center Platen are NOT blocked. n Check that the Vacuum Fan is installed correctly.

n Replace the Vacuum Fan ??? Page 8-11.

2If the Vacuum Fan held the sheet in place, but couldn???t correctly

load it, then there could be a problem with the Overdrive. In this case, replace the Platen Assembly ??? Page 8-63.

Vacuum suction much lower at high altitudes

At altitudes above 3,000 meters, the vacuum force holding down the media will be lower, therefore the media will not be held in place properly causing:

nInk Smearing on the Media.

nPrinthead crashes against the Media.

nCut Sheet loading problems (high probability).

nRoll Media loading problems (low probability).

PRINTER LIMITATION - NO SOLUTION AVAILABLE.

Bin marks on prints done on HP High Gloss media

Prints done on HP High Gloss media are sensitive to scratches when they fall into the media bin. To solve the problem, try the following:

nAdvise the customer to install the Media Bin cover, that was included with the Printer, to avoid this problem.

nIf possible, advise the customer to hold the prints and prevent them from falling in to the bin.

Troubleshooting

Printhead Crashes/Smears on High Density Prints

Using Coated Media

High density prints can cause cockle mainly on HP Coated Media. This causes two main problems:

1.Cockling in the borders - Because the printer places too much ink on the Coated Media, the borders of the print become raised, causing the Printhead to crash against the media. To solve the problem, try the following:

nCheck in the Front Panel if Ink Limiting is ON or OFF. If Ink Limiting is OFF, turn it ON.

nChange the paper margins to 15mm, either in the Front Panel or in the Driver. If the customer is printing PostScript images, send them a PPD file containing the extended margins of 15mm.

2.Cockling within the print - If the Printer places too much ink within the print, the media starts to ripple, causing the Printhead to smear against the media. To solve the problem, try the following:

nCheck in the Front Panel if Ink Limiting is ON or OFF. If Ink Limiting is OFF, turn it ON.

nNever use HP Coated Media for High Density prints. As a substitute use HP Heavy Coated Media.

Color changes when stacking prints done on HP High Gloss Media

Color differences can be seen between the covered and uncovered part of a print done on HP High Gloss Media. This is because the part of the print exposed to the air is always lighter than the covered one. The ink on the covered part of the print cannot evaporate therefore the ink continues to diffuse creating larger ink dots. To solve the problem, try the following:

nAllow the print to absolute drying completion before stacking. Depending on the ink percentage, this can take from 10 minutes up to 3 hours.

nCreating dryer environmental conditions helps reduce the problem. To find the environmental conditions, print the Service Configuration Print (Printer Setup Menu / Utilities / Test prints /

Service config)

Troubleshooting

HP-GL/2 color differences in different HP DesignJet Printers

Color differences between one image printed on the HP DesignJet 1000 Series and the rest of the DesignJet platforms are due to the different chemistry of the 1000 series inks compared with the rest of the inks for other printers. This color variability among different HP DesignJet Series Printers has been always present. To solve the problem, try the following:

nPerform the color calibration from the driver at the time of printing. However, that calibration is not very accurate but it may help in the most severe cases.

nSome applications have color controls for the user to modify the image in order to obtain the desired colors.

nPrinting with PostScript reduces the problem significantly.

nAvoid very long exposures to extreme environmental conditions after printing with glossy media (more than 12 hours at 80% humidity may result in severe changes in color).

Scratches on prints done on NTP, Vellum and HP High Gloss media

Normally at the end of a roll, the curl on the media is high and the printed area can touch the media load handles or the media roll, transferring ink to the "still-not-printed" media or damaging the actual print. This problem mainly affects Natural Tracing Paper (NTP), Vellum and HP High Gloss Media. To solve the problem, try the following:

nIncrease the Dry Time using the Front Panel (Refer to the User???s Guide - Chapter 3 Working with Paper).

nInstall a new roll of media.

Troubleshooting

Banding at variable extreme environmental conditions

Since the Accuracy Calibration has been done at normal environmental conditions, printing in extreme environmental conditions will cause banding because the advance of the Drive Roller does not correspond to the same conditions that the calibration was done in. To solve the problem, try the following:

nPerform the Accuracy Calibration in the new environmental conditions (Refer to the User???s Guide - Chapter 8 Reconfiguring your Printer).

Banding due to Ink Cartridge replacement while printing

A user has removed the Ink Cartridge while the printer was printing, which has caused the printer to stop. If the user does not replace the Ink Cartridge immediately, when the printer starts to print again, a band will appear in the position where the printing restarted. This is because the wet ink interacts with the dried ink on the media causing the band to appear. To solve the problem, try the following:

nDo NOT remove the Ink Cartridge while the Printer is Printing. Only replace/remove Ink Cartridges in between Prints.

nIf the Ink Cartridge was replaced due to the "Empty" status on the Front Panel, then advise the customer to replace the Ink Cartridge when the "Very Low" status is showing on the Front Panel.

Long term bleed and hue shift on HP High Gloss media

Under high humidity conditions (approx. >65%) the water trapped in the air can easily be absorbed by the highly hydrophilic media coating polymers. That allows the dye to migrate through the coating and causes bleeding. This problem is especially noticeable with the colors that require Magenta. To solve the problem, try the following:

nReduce the level of humidity (<65%) that the Printer is working in. To find the humidity level, print the Service Configuration Print (Printer Setup Menu / Utilities / Test prints / Service config).

Troubleshooting

Lower image gloss directly after printing on HP High

Gloss Photo Paper

Lower gloss appearance of the print when the media is drying which gradually disappears to get the final gloss level (between 10 and 60 minutes depending on the ink density). Try the following:

n Wait at least 60 minutes to achieve the high gloss appearance.

34" Rice Paper not supported

Roll length is 34" (Non-standard) and the pinch wheels can???t control edge of media causing ink smears and Printhead crashes in middle of prints with or without area fills.

PRINTER LIMITATION - NO SOLUTION AVAILABLE.

Cut Sheet rice paper loading failure

Thin rice paper is sucked into the Center Platen grooves and Linear Blade Ridge. This implies that the friction between the Center Platen and the rice paper becomes higher than between the Overdrive wheels and the paper. This effect make it almost impossible to load the rice paper correctly because the Vacuum is too high.

PRINTER LIMITATION - NO SOLUTION AVAILABLE.

Worm marks on HP Coated media with light area fills

Light bands (S-shaped) in Paper axis direction where light area fills are printed, causing unacceptable Image Quality defect.

nPrint the Service Configuration Print (??? Page 1-19) and check if the level of Humidity is very low (below 30%). Increasing humidity may help in reducing the severity of the problem.

Troubleshooting

Troubleshooting

Troubleshooting

Service Configuration Print

The Service Configuration Print is a useful tool for troubleshooting the Printer. The Service Configuration Print contains the following information about the Printer:

nGeneral Configuration

nPrinthead Info.

nCartridge Info.

nOperating Conditions.

nCalibrations.

nMaintenance.

nIIO Configuration.

How to Print the Service Configuration Print

1Load media (Roll media or at least an A4 Sheet) into the Printer.

2Once the message "Ready" is displayed on the front-panel, scroll to the "Printer Setup Options" icon and press the Enter key.

3Once inside the "Printer Setup Options" menu, use the Arrow keys to scroll to the "Utilities" menu display and press the Enter key.

4Once inside the "Utilities" menu, use the Arrow keys to scroll to the "Test Prints" menu display and press the Enter key.

Troubleshooting

5Use the Arrow keys to scroll to "Service Config." and press the Enter key to print the Service Configuration Print.

How to Use the Service Configuration Print

The Service Configuration Print is divided into 7 different areas where you can find information to troubleshoot the Printer.

nGeneral Configuration - In this area you can find information regarding the general configuration of the Printer, for example, the firmware version, amount of memory installed or the capacity of the Hard Disk Drive.

nPrinthead Info - In this area you can find all the information regarding the Printheads, for example, the part number, the manufacturing date or the number of times a certain Printhead has been inserted in the carriage. This information is useful for troubleshooting Printhead problems and even knowing if the Printheads have been used with Non-HP Cartridges.

nCartridge Info - In this area you can find all the information regarding the Cartridges, for example, the part number, the manufacturing date or the ink level. This area also shows you if the customer is using Non-HP Cartridges.

nOperating Conditions - In this area you can find the level of humidity and the temperature that the Printer is working in.

nCalibrations - In this area you can find information on certain calibrations that have been performed on the Printer. It will also tell you if a required calibration was performed or not.

nMaintenance - In this area you can find information relating to maintenance, for example, the number times the Printer has been powered ON, the number of Carriage cycles or the last System Error Code that was triggered.

nIIO Configuration - In this area you can find information on the configuration of the JetDirect Card.

Troubleshooting

Sample of the Service Configuration Print

Troubleshooting

System Error Codes

System Error Codes

Introduction

System error codes are hexa-decimal based numbers generally caused by internal system errors. The following pages contain a list of system error codes and their respective descriptions and recommended corrective actions. Only try one recommended action at a time and check if the error code has disappeared.

If you have an error code which is not documented in this Service Manual or you have an error which you cannot resolve, then report the error to the HP Response Center or the nearest HP Support Office. When reporting the error, have the following information ready:

nModel and Serial Number of the printer.

nWhich firmware revision the printer is using (See Note below). Check firmware in Utilities / Statistics / Code rev.

nThe complete error number (See Note below).

nThe Service Configuration Print ??? Page 1-19.

nThe Current configuration sheet.

nWhich software application the customer is using (name, version, etc.).

n Switch the Power OFF from the back of the Printer and disconnect the Power cord. Reseat the Firmware DIMM, reconnect the power cord and power On the Printer.

n If the Error Code appears again, switch the Power OFF from the

System Error Codes

System Error Codes

System Error Codes

System Error Codes

System Error: 01009X (Continuable)

ProblemError in Paper-axis Motor Encoder

Description:

Corrective Action: Try the following:

nCheck that the Paper-Axis Motor cable is NOT broken or damaged.

nCheck that the Paper-Axis Motor cable is correctly connected.

nReplace the Paper-Axis Motor ??? Page 8-12.

nIf the Error Code continues, replace the Electronics Module ??? Page 8-25.

System Error Codes

Description:

Corrective Action: Try the following:

n Press ENTER and switch the printer OFF. Remove the Hard Disk Drive (if installed) and make sure that the EIO card is installed correctly by pushing it firmly inwards and checking that the two installation screws are completely tightened. Switch the printer ON again. If this error code continues to appear then replace the EIO card.

n If this Error Code disappeared after removing the Hard Disk Drive, then switch the Printer OFF and reinstall the Hard Disk Drive, making sure that the two installation screws are completely tightened. Switch the Printer ON again. If this Error Code reappears, then the Hard Disk Drive could be faulty. Replace the Hard Disk Drive.

n If this system error continues to appear after replacing the EIO card or the Hard Disk Drive, then replace the Electronics Module ??? Page 8-25.

System Error Codes

Corrective Action: Try the following:

nReplace the failing Printhead.

nIf the problem remains after replacing the failing Printhead then check if the customer is using a 3rd Party RIP. If a 3rd Party RIP is being used, check the Print Settings in the RIP or try printing one of the Internal Demo Prints to see if the problem is solved without the RIP.

System Error Codes

n Clean the Mark Encoder if necessary (use the Overdrive Cleaning Utility to position the Mark Encoder ??? Page 4-37).

System Error Codes

System Error Codes

System Error: 080001 (Non-Continuable)

ProblemPostScript Error.

Description:

Corrective Action: Refer to System Error Code 070100.

System Error: 09xxxx (Non-Continuable)

ProblemEIO Accessories (EIO Card/Hard Disk Drive) Error.

Description:

Corrective Action: Try the following:

nSwitch the Printer OFF and ON again and wait for the initialization.

nIf the Error code continues to appear, switch the Printer OFF. Remove the EIO Card (if installed) and make sure that the Hard Disk Drive is installed correctly by pushing it firmly inwards and checking that the two installation screws are completely tightened. Switch the Printer ON again. If the error codes 09Axxx or 09Bxxx appear then replace the Hard Disk Drive.

nIf the Error Code disappeared after removing the EIO Card, then switch the Printer OFF and reinstall the EIO Card, making sure that the two installation screws are completely tightened. Switch the Printer ON again. If the Error Code reappears, then the EIO Card could be faulty. Replace the EIO Card.

nIf Error Code 09Cxxx appears after initialization, then replace the Electronics Module ??? Page 8-25.

nOnce the Error Code has been solved, print an Internal Demo Print to make sure that the Hard Disk Drive is functioning correctly. If the Error Code reappears, then use the above information to troubleshoot the problem.

System Error Codes

n Replace ONE Ink Cartridge at a time, checking if the error code disappears.

n Check all the cables of the APS and make sure they are correctly

System Error Codes

System Error Codes

n The leak detector could have been triggered due to condensation

System Error Codes

System Error Codes

System Error: 0C0032 (Continuable)

ProblemDrop Detector not Calibrated for all Printheads.

Description:

Corrective Action: Try the following:

nPerform the Service Station Calibration ??? Page 5-11.

nReplace the Drop Detector Assembly ??? Page 8-10.

nIf the Error Code continues, replace the Electronics Module ??? Page 8-25.

System Error Codes

System Error Codes

System Error Codes

System Error Codes

Description:

Corrective Action: Try the following:

n Make sure that the Aerosol Fan is connected correctly to the Electronics Module.

n Turn the Printer OFF and disconnect the Aerosol Fan from the Electronics Module. Connect a New Aerosol Fan (comes with the new Right Cover) to the Electronics Module and power ON the Printer. If the New Aerosol Fan functions correctly without any Error Codes then remove the Old Aerosol Fan from the Printer and install the New one.

n If the New Aerosol Fan does not function correctly either, then replace the Electronics Module ??? Page 8-25.

System Error Codes

HP No.80 Ink Supplies Troubleshooting

What are HP No.80 Supplies?

For each of the four ink colors used in the printer, there are three separate components. The printhead and the printhead cleaner are supplied together, and the ink cartridge is supplied separately. All of these components are called the HP No.80 Supplies. They are coded with an HP No.80 selection number to identify the correct replacement supplies.

Ink Cartridges

The HP No.80 ink cartridges for the HP DesignJet 1050C and 1055CM printers require no maintenance or cleaning. As long as each ink cartridge is inserted correctly into its slot, the ink will flow to the printheads.

The front panel displays the status of the Ink Cartridge. With the front panel, detailed information can be checked on the Ink Cartridges.

Printheads and Printhead Cleaners

The HP No.80 printheads are extremely durable and do not need to be replaced every time an ink cartridge is replaced. They are independent of the ink cartridges and will continue giving excellent image quality results even if the ink cartridges are low on ink. See page 3-6, When Should You Replace the HP No.80 Supplies?

If you notice a decline in print quality such as lines or dots missing from text / graphics, go to page 6-13, Troubleshooting Print Quality Problems.

HP No.80 Ink Supplies Troubleshooting

The HP No.80 printhead cleaners keep the printheads in good condition and they prevent them from being damaged when the printer is not active. They service the printhead, making sure it???s always ready to be used.

Identifying the Components

The following illustration will help you identify the components of the HP No.80 supplies.

Printhead

HP

C6074074

HP No.80 Ink Supplies Troubleshooting

General Information About HP No.80 Supplies

For optimum results from the printer and modular ink delivery system always follow these guidelines when handling the HP No.80 supplies:

nAlways install the ink cartridges, printheads and printhead cleaners before the expire date, which is on the packaging.

nInstall a new printhead cleaner every time you change a printhead.

nAllow the printer and printhead cleaners to automatically clean the printheads.

nInstall ink cartridges, printheads and printhead cleaners in their color-coded slots.

nFollow the instructions on the front panel of the printer during installation.

nAvoid unnecessary removal of the ink cartridges and printheads.

nWhen turning off the printer always use the power Off button on the front panel. The printheads are then stored correctly which prevents them from drying out.

nThe ink cartridges should never be removed while the printer is printing. They should only be removed when the printer is ready for you to replace them. The front panel will guide you through the removal and installation procedure. See page 3-6, When Should You Replace the HP No.80 Supplies?

HP No.80 Ink Supplies Troubleshooting

Some General Precautions When Handling HP No.80

Supplies

CAUTION

Do not touch, wipe or attempt to clean the printhead nozzles. This can damage the printhead.

Do not touch, wipe or attempt to clean the printhead nozzles. This can damage the printhead.

C6074297a

Handle the HP No.80 supplies with care. In particular the printhead, which is a high precision device and must be handled carefully.

nDo not touch the printhead nozzles.

nDo not put the printhead down on the nozzles.

nDo not be rough when handling the printheads. Always set them down gently.

nDo not drop the printheads.

nProper handling will assure optimum performance throughout the printhead life.

nThe printhead cleaner should always be handled and stored upright to avoid a potential spillage of ink.

nDo not touch the end of the ink cartridge which is inserted into the printer as there may be a small amount of ink on the connection.

nAvoid storing partially used ink cartridges on their ends.

HP No.80 Ink Supplies Troubleshooting

When Should You Replace the HP No.80 Supplies?

When to change the HP No.80 supplies is mostly determined by you with guidance from the front panel. In conjunction with the messages displayed in the front panel and the message explanations in this chapter, you will be able to choose for yourself when is the right time to change the HP No.80 supplies.

The printer will also display the ink level and will tell you when the ink supply is low, very low or empty. This means you have constantly updated information about the HP No.80 supplies.

Printhead life is anticipated to be 700ml or twelve months in the printer, whichever occurs first, provided that the printhead is used under normal operating conditions (using HP Ink Cartridges only) and its ???install before date??? has not lapsed. However results vary depending on the print quality setting being used.

HP No.80 Ink Supplies Troubleshooting

The Front Panel Display

The front panel display has a dedicated area to report the status of your HP No.80 supplies. There are two different screens:

n One screen displays information on the ink cartridges:

nThe other screen displays information on the printheads and the printhead cleaners.

nDuring normal operation the front panel displays the ink levels, however if there is a printhead status message such as: monitor for example see page 3-13, Printhead Status Messages While Printing, the printhead message will take precedence. This is the case until you replace the printhead. If you need to see the ink levels when they are not being displayed you can use the ink systems menu to check them.

HP No.80 Ink Supplies Troubleshooting

Obtaining Ink Cartridge Information

1To get information on the ink cartridges press the Top key on the front panel to go to the main menu.

2 Press the ??? or ??? key until the front panel displays the ink system

menu. Press Enter.

3Press the ??? or ??? key until the front panel highlights ???Ink Cartridge info???. Press the Enter key.

Ink System options

Replace printhead

Replace Ink cartridge

Ink cartridge info...

Printhead info...

4Press the ??? or ??? key until the front panel highlights the color that you want to see information on. Press the Enter key.

Ink System options

Cyan cart. info...

Magenta cart. info...

Yellow cart. info...

Black cart. info...

HP No.80 Ink Supplies Troubleshooting

5 The front panel displays information on the selected ink cartridge.

Cyan cart. info

HP No.80 ink cartridge

Ink level=87%

Capacity=350ml

Part number=C4871A

Mfg. month=5/1998

The information supplied is:

nThe make of the ink cartridge (HP No.80 are recommended).

nThe percentage of how much ink is remaining.

nOriginal capacity of the ink cartridge in milliliters.

nRe-order part number of the ink cartridge.

nThe month and year that the ink cartridge was manufactured.

Obtaining Printhead Information

1To get information on your printheads, press the Top key on the front panel to go to the main menu.

2 Press the ??? or ??? key until the front panel displays the ink system

menu. Press Enter.

HP No.80 Ink Supplies Troubleshooting

3Press the ??? or ??? key until the front panel highlights ???Printhead info???. Press the Enter key.

Ink System options

Replace printhead

Replace Ink cartridge

Ink cartridge info...

Printhead info...

4Press the ??? or ??? key until the front panel highlights the color that you want to see information on. Press the Enter key.

Printhead info.

Cyan printhead info...

Magenta printhead info...

Yellow printhead info...

Black printhead info...

5 The front panel displays information on the selected printhead.

Cyan printhead info

HP No.80 printhead

Status=OK

Part Number=C4821AW

Usage time=50h

Ink consumed=3ml

Mfg. month=5/1998

The information supplied is:

nThe make of the printheads (HP No.80 are recommended).

nThe current status of the printhead.

nRe-order part number of the printhead.

nThe time that the printhead has been operating in the printer.

nHow much ink has been consumed by the printhead. Note: It is possible for a printhead to consume more than one ink cartridge.

nThe year and the month that the printhead was manufactured.

HP No.80 Ink Supplies Troubleshooting

1Reseat the Ink Cartridge.

2If reseating does not resolve the status message, replace the Ink Cartridge.

3If the Status messages continue to appear, even after replacing the Ink Cartridge, replace the complete Tubes System ??? Page 8-53.

Ready/Replace The front panel displays Ready and the printhead status is REPLACE. The printer is giving an early warning that there may be a degradation of print quality. The Printer has detected more than 4 black nozzles or 7 color nozzles out in 5 out of every 8 servicing procedures.

A new printhead should be bought. Depending on the print mode you are using (best, normal or draft) you may still be able to print with an acceptable print quality, there may be however, a slight loss in speed. Refer to the table below for more details.

The printer can still operate with a printhead that needs replacing.

The front panel will display:

HP No.80 Ink Supplies Troubleshooting

1Reseat the printhead.

2Clean the Carriage and Printhead flex circuits using the Carriage Interconnect Wiper ??? Page 3-18.

3If after reseating and cleaning the printhead, the failed message disappears but then reappears later, replace the printhead.

1Reseat the Printhead, making sure it is installed correctly.

2Clean the Carriage and Printhead flex circuits using the Carriage Interconnect Wiper ??? Page 3-18.

3Replace the Printhead.

4Perform the Electronic Systems Test ??? Page 4-5.

HP No.80 Ink Supplies Troubleshooting

1Reseat the Printhead in the correct position.

2Clean the Carriage and Printhead flex circuits using the Carriage Interconnect Wiper ??? Page 3-18.

3Replace the Printhead.

4Perform the Electronic Systems Test ??? Page 4-5.

1Reseat the Printhead.

2Clean the Carriage and Printhead flex circuits using the Carriage Interconnect Wiper ??? Page 3-18.

3Replace the Printhead.

4Perform the Electronic Systems Test ??? Page 4-5.

HP No.80 Ink Supplies Troubleshooting

1Ensure that you have the correct HP No.80 ink cartridge.

2Ensure that the Ink Cartridge is the correct color for that slot.

3Ensure that the Ink Cartridge is the correct orientation, with the color coded label at the top.

You Cannot Insert the Printhead Into the Printer

1Ensure that you have the correct HP No.80 printhead.

2Ensure that the printhead is the correct color for that slot.

3Ensure that the printhead is the correct orientation.

4Ensure that the protective cap is removed from the Printhead.

You Cannot Insert the Printhead Cleaner Into the Printer

1Ensure that you have the correct HP No.80 printhead cleaner.

2Ensure that the printhead cleaner is the correct color for that slot.

3Ensure that the printhead cleaner is the correct orientation.

HP No.80 Ink Supplies Troubleshooting

Service Tests and Utilities

Introduction

This chapter explains how to use the built-in Service Tests and Service Utilities and what to do if any of the Service Tests fail. If possible, always perform a Service Test on the component that you are about to replace, just to make sure that is the component that has failed. If the test on that component passes, there is no need to replace it.

Diagnostics - Self Test

Initialization Sequences

Whenever the Printer is switched ON, it automatically performs a series of internal self tests and mechanical initialization sequences. If any of the parts fail, a system error will appear and you should consult Chapter 2 - System Error Codes.

important that once you have finished with the Service Tests, you MUST power OFF the Printer and Power ON again before trying to print.

1 Electronics System ??? Page 4-5

The purpose of this test is to verify the operation of the: n Electronics Module.

n DRAM.

n Trailing Cable.

n Carriage Assembly.

2EIO Card ??? Page 4-10

The purpose of this test is to verify the operation of the EIO Card.

3Hard Disk Drive ??? Page 4-12

The purpose of this test is to verify the operation of the Hard Disk Drive.

4Ink Pressure System ??? Page 4-14

The purpose of this test is to verify the operation of the: n Service Replaceable Kit (SRK).

n Air Pressurization System (APS).

5Scan Axis ??? Page 4-17

The purpose of this test is to verify the operation of the Scan-Axis.

6Paper Axis ??? Page 4-20

The purpose of this test is to verify the operation of the Paper-Axis.

7Drop Detector ??? Page 4-22

The purpose of this test is to verify the operation of the Drop Detector.

Service Tests and Utilities

1Make sure the printer is switched OFF from the power switch on the front of the printer and NOT from the power switch on the back of the printer.

2Hold the COLOR key down and switch the printer ON using the front power switch. Wait until the message "Initializing" is displayed on the front-panel before releasing the COLOR key.

3Once inside the Service Tests Menu use the Arrow keys to scroll through the "Service Tests" selections.

Service Tests

1.Electronic Systems

2.EIO Card

3.Hard Disk Drive

4.Ink Pressure System

5.Scan Axis

4Press the Enter key to begin a specific test when the required Service Test is highlighted.

Service Tests and Utilities

Service Tests and Utilities

Perform the Electronic Systems test as follows:

1In the Service Tests submenu, scroll to "1. Electronic Systems" and press Enter.

Top

2The test will start and the following sequence of messages will appear on the front panel:

ELECTRONIC SYSTEMS

Running Carriage Test

XXXXXXXX

XXXXXXXX

Trailing Cable Test

Yuyu R/W

Carriage ADC

Pen Continuity Digital Cyan / Magenta / Yellow / Black

PEN ACUMEN

Pen Digital functionality

Pen Analog Continuity

VPP regulation Cyan / Magenta / Yellow / Black

Line Sensor zero test

Service Tests and Utilities

3If the test passes, then the following message will appear on the front panel:

ELECTRONIC SYSTEMS

4If the test fails.

Electronics Failure

If there is a problem with the components within the Electronics module then the following message will appear on the front panel:

ELECTRONIC SYSTEMS

Possible Failure on:

1. Electronics Module

Code: 00XXXX:0000XX

In this case, Replace the Electronics Module ??? Page 8-25.

DRAM Test Failure

If there is a problem with the DRAM then the following message will appear on the front panel:

ELECTRONIC SYSTEMS

Possible Failure on:

1.DRAM DIMMs

2.Electronics Module

Code: 00XXXX:0000XX

In this case, try one of the following:

1Switch the Power OFF from the back of the Printer and disconnect the Power cord. Reseat the DRAM DIMMs (Memory Modules), reconnect the power cord and power On the Printer. Perform the Electronic Systems Test again.

Service Tests and Utilities

2If the Test fails again, switch the Power OFF, disconnect the power cord and Replace the DRAM DIMMs (Memory Modules).

Reconnect the power cord and power On the Printer and perform the test again.

3Replace the Electronics Module ??? Page 8-25.

In this case, try one of the following:

1Make sure that the Trailing Cable is connected correctly.

2Power OFF the Printer and connect a new Trailing Cable to the Carriage and the Electronics Module (without removing the old

Trailing Cable from the Printer). Perform this test again and if the

test FAILS, then DO NOT replace the trailing cable. If the test PASSES, replace the Trailing Cable ??? Page 8-39.

3Power OFF the Printer and connect a new Carriage Assembly to the Trailing Cable (without removing the old Carriage Assembly from the Printer). Perform this test again and if the test FAILS, then

DO NOT replace the Carriage Assembly. If the test PASSES, replace the Carriage Assembly ??? Page 8-44.

4Power OFF the Printer and connect a new Electronics Module to the Trailing Cable (without removing the old Electronics Module from the Printer). Perform this test again and if the test FAILS, then

DO NOT replace the Electronics Module. If the test PASSES, replace the Electronics Module ??? Page 8-25.

Service Tests and Utilities

Carriage Test Failure

If there is a problem with the Carriage and any related parts then the following message will appear on the front panel:

ELECTRONIC SYSTEMS

Possible Failure on:

1.Printhead CYMK

2.Trailing/Carriage

3.Electronics Module

Code: 00XXXX:0000XX

In this case, try one of the following:

1Remove the Printheads and clean the Carriage and Printhead flex circuits using the Carriage Interconnect Wiper ??? Page 3-18.

Reinstall the Printheads and try the test again.

2If the test fails again, replace the Printheads.

3Make sure that the Trailing Cable is connected correctly to the Carriage Assembly and to the Electronics Module.

4Power OFF the Printer and connect a new Trailing Cable to the Carriage and the Electronics Module (without removing the old Trailing Cable from the Printer). Perform this test again and if the

test FAILS, then DO NOT replace the trailing cable. If the test PASSES, replace the Trailing Cable ??? Page 8-39.

5Power OFF the Printer and connect a new Carriage Assembly to the Trailing Cable (without removing the old Carriage Assembly from the Printer). Perform this test again and if the test FAILS, then

DO NOT replace the Carriage Assembly. If the test PASSES, replace the Carriage Assembly ??? Page 8-44.

6Power OFF the Printer and connect a new Electronics Module to the Trailing Cable (without removing the old Electronics Module from the Printer). Perform this test again and if the test FAILS, then

DO NOT replace the Electronics Module. If the test PASSES, replace the Electronics Module ??? Page 8-25.

Service Tests and Utilities

Perform the EIO Card test as follows:

1In the Service Tests submenu, scroll to "2. EIO Card" and press

Enter.

2The test will start and the following message will appear on the front panel:

EIO CARD

Running EIO

Card Test...

3If the test passes, then the following message will appear on the front panel:

EIO CARD

Tests passed

DNS Name: XXXXXX

Appletalk: XXXXXX

IP addr: XXXXXX

HW addrr: XXXXXX

In this case, to resolve the problem, try the following:

1Switch the printer OFF. Remove the Hard Disk Drive (if installed) and reinstall the EIO Card making sure it installed correctly by pushing it firmly inwards and checking that the two installation screws are completely tightened. Switch the printer ON again and repeat the EIO Card Test. If the EIO Card Test fails again then replace the EIO card.

2If the EIO Card Test passed after removing the Hard Disk Drive, then switch the Printer OFF and reinstall the Hard Disk Drive, making sure that the two installation screws are completely tightened. Switch the Printer ON again and repeat the EIO Card

Test. If the EIO Card Test fails, then the Hard Disk Drive could be faulty. Replace the Hard Disk Drive.

3If the EIO Card Test continues to fail after replacing the EIO card or the Hard Disk Drive, then replace the Electronics Module ??? Page

8-25.

Service Tests and Utilities

Perform the Hard Disk Drive test as follows:

1In the Service Tests submenu, scroll to "3. Hard Disk Drive" and press Enter.

Top

2The test will start and the following message will appear on the front panel:

HARD DISK DRIVE

Running Hard Disk

Drive Test...

3If the test passes, then the following message will appear on the front panel:

HARD DISK DRIVE

Tests passed

Capacity: 2067 KB

PS font rev: V_6.0A75

In this case, to resolve the problem, try the following:

1Switch the printer OFF. Remove the EIO Card (if installed) and reinstall the Hard Disk Drive making sure it installed correctly by pushing it firmly inwards and checking that the two installation screws are completely tightened. Switch the printer ON again and repeat the Hard Disk Drive Test. If the Hard Disk Drive Test fails again then replace the Hard Disk Drive.

2If the Hard Disk Drive Test passed after removing the EIO Card, then switch the Printer OFF and reinstall the EIO Card, making sure that the two installation screws are completely tightened.

Switch the Printer ON again and repeat the Hard Disk Drive Test. If the Hard Disk Drive Test fails, then the EIO Card could be faulty. Replace the EIO Card.

3If the Hard Disk Drive Test continues to fail after replacing the EIO

card or the Hard Disk Drive, then replace the Electronics Module ??? Page 8-25.

Service Tests and Utilities

Perform the Ink Pressure System test as follows:

1In the Service Tests submenu, scroll to "4. Ink Pressure System" and press Enter.

2The test will start and the following sequence of messages will appear on the front panel:

Service Tests and Utilities

3If the test passes, then the following message will appear on the front panel:

INK PRESSURE SYSTEM

Tests passed

Service Tests and Utilities

appear on the front panel:

INK PRESSURE SYSTEM

Possible Failure on:

1.APS

2.Electronics Module

Code: 00XXXX:0000XX

In this case, try one of the following:

1Check all the cables of the APS and make sure they are correctly connected and are NOT damaged.

2Check all the tubes of the APS and make sure they are NOT pinched or damaged.

3Replace ALL the Ink Cartridges.

4Replace the complete APS ??? Page 8-20.

5Replace the Electronics Module ??? Page 8-25.

Service Tests and Utilities

5. Scan Axis

1In the Service Tests submenu, scroll to "5. Scan Axis" and press

Enter.

Service Tests and Utilities

2The test will start and the following message will appear on the front panel:

SCAN AXIS

Running Scan

Axis Test...

(takes 2mn...)

3Once the test is completed, the following message will appear on the front panel:

SCAN AXIS FORWARD

Avg PWM: XXX

Max PWM: XXX

Stabilizat Dist: XXXX

Avg speed offset: XXX

STD speed offset: XXX

4Press Enter and the following message will appear on the front panel:

SCAN AXIS BACKWARDS

Avg PWM: XXX

Max PWM: XXX

Stabilizat Dist: XXXX

Avg speed offset: XXX

STD speed offset: XXX

To check if the values displayed after the test are within the limits, refer to the following table:

Service Tests and Utilities

If the values obtained in the test are less than the Maximum values in the previous table, then the test has passed.

If the values obtained in the test are greater than the Maximum values in the previous table, then the test has failed. To resolve the problem, try the following:

1Clean the Slider Rods and Apply Oil along the complete axis of the

Slider Rods. After applying the Oil, perform the test again.

2Check that the Encoder Strip is clean. If necessary, clean Encoder

Strip using a damp cloth.

3Check that the Tubes System is installed correctly.

4Check that the Carriage Belt and pulleys are installed correctly.

5Replace the Scan-Axis Motor ??? Page 8-33.

Service Tests and Utilities

Perform the Paper Axis test as follows:

1In the Service Tests submenu, scroll to "6. Paper Axis" and press

Enter.

2The test will start and the following messages will appear on the front panel:

Service Tests and Utilities

3Once the test is completed, the following message will appear on the front panel:

PAPER AXIS

Max PWM: XXX

Avg PWM: XXX

Max PWM (C): XXX

Avg PWM (C): XXX

If the values of the Max. PWM is less than 95 and the Avg. PWM is less than 85, then the test has passed.

If the values of the Max. PWM is more than 95 and the Avg. PWM is more than 85, then the test has failed. To resolve the problem, try the following:

1Open the Window and check for any visible obstacles restricting the movement of the Drive Roller or the Overdrive Assembly.

2Replace the Paper-Axis Motor ??? Page 8-12.

If the values of the Max. PWM is less than 95 and the Avg. PWM is less than 85, but the values of the Max. PWM(C) is more than 100 and the Avg. PWM(C) is more than 90 then the test has failed. To resolve the problem, try the following:

1 Replace the Overdrive Assembly ??? Page 8-64.

Service Tests and Utilities

Perform the Drop Detector test as follows:

1In the Service Tests submenu, scroll to "7. Drop Detector" and press

Enter.

2The test will start to initialize and the following message will appear on the front panel:

DROP DETECTOR TEST

Initializing

in Tclware (90s)...

Close any open door

Service Tests and Utilities

3After initialization, the test will start and the following message will appear on the front panel:

DROP DETECTOR TEST

Running Drop

Detector Test...

4When the following message appears, open the Window and insert a thin piece of paper inside the Drop Detector in order to block it. Press any Front Panel key once the Drop Detector is blocked.

Block the Drop Detector and press a FP key when it is blocked

Drop Detector

5When the following message appears, remove the piece of paper from inside the Drop Detector and close the Window. Press any Front Panel key once the Window is closed.

Unblock Drop Detector close the window

and press a FP key to continue

6The Printer will test the Drop Detector and the following message will appear on the front panel:

DROP DETECTOR TEST

Running Drop

Detector Test, ghost d

Service Tests and Utilities

7If the test passes, then the following message will appear on the front panel:

DROP DETECTOR

BLOCKED DD: PASS

GHOST DROPS: PASS

In this case, to resolve the problem, try the following:

1Check that the Drop Detector Cable is NOT broken or damaged.

2Check that the Drop Detector cable is correctly connected to the Service Station Cable.

3Check that the Service Station Cable is NOT broken or damaged.

4Remove the Drop Detector and make sure that there are no obstacles inside which are blocking the sensor.

5Replace the Drop Detector Assembly ??? Page 8-10.

6If the test continues to fail, replace the Electronics Module ??? Page

8-25.

Service Tests and Utilities

Service Utilities

The following is a list of all internal Service Utilities available in the Printers. Instructions for entering the Service Utilities menu are given on Page 4-26.

1Tubes Purge ??? Page 4-28

The purpose of this Service Utility is to Prime the Tubes when a new Tubes System has been installed.

2Release Info ??? Page 4-32

This Service Utility provides information on the current Firmware version.

3Set Asian PS Font ??? Page 4-33

The purpose of this Service Utility is to set the Asian Fonts after replacing the Hard Disk Drive.

4Printer Model Type ??? Page 4-35

The purpose of this Service Utility is to set the correct Printer Model.

5Overdrive Cleaning ??? Page 4-37

The purpose of this Service Utility is to rotate the Overdrive in order to clean it.

6EEROM Utilities ??? Page 4-38

The purpose of this Service Utility is to either clear the EEROM or to test it.

7Printhead Check ??? Page 4-41

This Service Utility allows you to have the Printhead checking facility ON or OFF.

8Mon. Mode Baud Sel. ??? Page 4-42

This Service Utility allows you to change the Baudrate of the Serial Port.

Service Tests and Utilities

Entering the Service Utilities Menu

1Once the message "Ready" is displayed on the front-panel, scroll to the "Printer Setup Options" icon and press the Enter key.

2Once inside the "Printer Setup Options" menu, use the Arrow keys to scroll to the "Utilities" menu display and press the Enter key.

3Once inside the "Utilities" menu, press the UP and Enter keys together. You are now in the Service Tools Menu.

4Use the Arrow keys to scroll to the "Service Utilities" menu and press the Enter key.

Top

Service Tools

Back

Service Tests and Utilities

5Use the Arrow keys to scroll through the "Service Utilities" selections.

Service Utilities

1.Tubes Purge

2.Release Info

3.Set Asian Font

4.Printer Model Type

5.Overdrive Cleaning

6Press the Enter key to begin a specific operation when the required Service Utility is highlighted.

Service Tests and Utilities

Perform the Tubes Purge as follows:

1In the Service Utilities submenu, scroll to "1. Tubes Purge" and press Enter.

2The Printer will begin to startup and in order to continue, press

Enter.

3The following message will be displayed on the front panel while the printer accesses the printheads.

INK STARTUP

Accessing Printheads

Service Tests and Utilities

4When the following message is displayed, lift the window and remove ALL the Printheads from the carriage. Install the Setup Printheads into the carriage.

INK STARTUP

Lift window to install SETUP printheads

5Once all the Setup Printheads are installed, the following message will appear on the front panel. Close the carriage cover and close the window.

INK STARTUP

All SETUP printheads are OK. Close cover and window to continue

6The following messages will be displayed on the front panel while the printer accesses and then stores the printheads.

7 The printer will then begin to purge the tubes system.

INK STARTUP

Initializing printer

Please wait. xx sec

Service Tests and Utilities

8Once the tubes system is purged, the following message will be displayed. Lift the window and remove ALL the Setup Printheads from the carriage and install the previously removed printing Printheads into the carriage.

INK STARTUP

Lift window to replace SETUP printheads

9Once all the Printheads are installed, the following message will appear on the front panel. Close the carriage cover and close the window.

INK STARTUP

All printheads

are OK. Close cover and window to continue

10Open the right cover and make sure the Printhead Cleaners are installed in the Service Station.

INK STARTUP

Open right cover and install printhead cleaners

11If media is not loaded, the following message appears on the front panel and you must load media into the Printer.

INK STARTUP

Load paper for calibration

Service Tests and Utilities

12The Printer will start to print the Printhead Alignment Pattern and the following message will be displayed on the front panel:

INK STARTUP

Aligning printheads Approximate

time remaining x min xx sec

13Once the Printhead Alignment is completed, the following message will be displayed on the front panel:

perform the Calibrations Backup (??? Page 5-19) in order to backup the EEROM Data from the Electronics Module. Make sure you select "Tubes Replaced" when performing the Calibrations Backup.

Service Tests and Utilities

2. Release Info

This Service Utility provides information on the current Firmware version.

Check the Release Info as follows:

1In the Service Utilities submenu, scroll to "2. Release Info" and press Enter.

Top

2The Printer will display the Firmware information. An example is shown below.

2. Release Info.

Rel: A.01.02

Date: Oct 27 1998

Time: 12:20:02

BChann: No

Set the Asian PS Font as follows:

1In the Service Utilities submenu, scroll to "3. Set Asian PS Font" and press Enter.

Top

2A list of ALL the Asian PS Fonts will be displayed and you must select the font that you require. Use the Up and Down arrow keys and press Enter once the selection has been made.

Service Tests and Utilities

3The following message will be displayed on the front panel asking you to confirm the selection. Select ACCEPT if you want to continue with your selection, or select CANCEL if you want to cancel it. Press Enter once the selection has been made.

4Once the Font selection has been made, the following message will be displayed on the front panel:

Top

Set the Printer Model Type as follows:

1In the Service Utilities submenu, scroll to "4. Printer Model Type" and press Enter.

2When the following message appears on the front panel, you must select which Printer Model you would like to set. Select either the HP DJ 1050C or the HP DJ 1055CM and press Enter.

3The following message will appear asking you to confirm the selection. Select ACCEPT if you want to set the Printer Model (selected in the previous step), or select CANCEL if you want to cancel the selection. Press Enter once the selection has been made.

Service Tests and Utilities

4Once the Model Type selection has been made, the following message will be displayed on the front panel:

Top

5Print the Service Configuration Print (??? Page 1-19) and check if the Printer Model Type has been set correctly.

Perform the Overdrive Cleaning utility as follows:

1In the Service Utilities submenu, scroll to "5. Overdrive Cleaning" and press Enter.

Top

2When the following message appears on the front panel, use the Up and Down arrow keys to select either to increase or decrease the speed. Press ENTER when the selection has been made and the speed will either increase or decrease depending on your selection.

3Refer to the Cleaning Instructions on Page 9-3.

4To stop the Overdrive, select "STOP" and press ENTER.

Service Tests and Utilities

6. EEROM Utilities

The purpose of this Service Utility is to either clear the EEROM in the Electronics Module or to test it.

Perform the Clear/Test EEROM utility as follows:

1In the Service Utilities submenu, scroll to "6. EEROM Utilities" and press Enter.

Top

2When the following message appears on the front panel, you must select whether you would like to either test the EEROM or clear it. Press ENTER once you have made your selection.

Top

6. EEROM utilities

Back

If you want to Test the EEROM

aIf you want to test the EEROM, then you should select "Test EEROM" and press ENTER. The following message will appear asking you to confirm the selection. Select ACCEPT if you want to continue, or select CANCEL if you want to cancel the test. Press Enter once the selection has been made.

Top

Service Tests and Utilities

bIf you decided to continue with the test then the following message will appear on the front panel and you should wait until the test has been performed.

Testing EEROM.

Please wait.

displayed on the front panel.

If you want to Clear the EEROM

aIf you want to clear the EEROM, then you should select "Clear EEROM" and press ENTER. The following message will appear asking you to confirm the selection. Select ACCEPT if you want to continue, or select CANCEL if you want to cancel the operation. Press Enter once the selection has been made.

Service Tests and Utilities

bIf you decided to continue with clearing the EEROM, then the following message will appear on the front panel and you should wait until the EEROM has been cleared.

Clearing EEROM.

Please wait.

be displayed on the front panel.

dIn order to recover the calibrations information, perform the Calibrations Backup (??? Page 5-19).

eAlso, if necessary, set the Asian PS Fonts (??? Page 4-33), selecting the Asian PS font that was set before clearing the

EEROM.

Turn the Printhead Check ON or OFF as follows:

1In the Service Utilities submenu, scroll to "7. Printhead Check" and press Enter.

Top

2When the following message appears on the front panel, you must select whether you would like to turn the Printhead Check ON or OFF. Press ENTER once you have made your selection and a little symbol will be displayed next to your selection.

Top

Service Tests and Utilities

Change the Baudrate as follows:

1In the Service Utilities submenu, scroll to "8. Mon. Mode Baud Sel." and press Enter.

Top

2When the following message appears on the front panel, you must select the Baudrate setting using the Up and Down arrow keys. Press ENTER once you have made your selection.

Service Calibrations

Service Calibrations

The Printer has several calibration procedures that must be performed under certain conditions. Refer to the table below to determine when calibrations are required.

ASSEMBLY OR COMPONENT.

Which Calibrations Need To Be

Done

Service Calibrations

Service Calibrations

The following is a list of all internal service calibrations available in the Printers. Instructions for entering the service calibrations menu are given on Page 5-4.

1Accuracy Calibration ??? Page 5-6

The purpose of this Service Calibration is to calibrate the nominal advance of the media. This calibration is necessary to control the exact movement of the media in order to avoid print quality problems like banding.

2Line Sensor ??? Page 5-9

The purpose of this Service Calibration is to calibrate the intensity of the line sensor in the Carriage PCA. An incorrect calibration can result in edge-detection failures during media loading and incorrect reading of prints that are used for alignment or calibration.

3Service Station ??? Page 5-11

The purpose of this Service Calibration is to calibrate the Service Station in relation to the Carriage Assembly.

4Roller Mark Position ??? Page 5-13

The purpose of this Service Calibration is to calibrate the Mark Encoder which is located on the Drive Roller.

5Pen to Paper Spacing ??? Page 5-15

THIS CALIBRATION IS NO LONGER REQUIRED.

6Color to Color Calibration ??? Page 5-16

The purpose of this Service Calibration is to correct the alignment between the Printheads and the rest of the Printer. This calibration is necessary in order to prevent color misalignment.

7Calibrations Backup ??? Page 5-19

The purpose of this Service Calibration is to allow the EEROM contents to be saved when the Electronics Module or the Tubes System is replaced.

8Pen Alignment ??? Page 5-22

The purpose of this Service Calibration is to correct the alignment between the Printheads. This calibration is necessary in order to prevent color misalignment and print quality defects like banding.

uCarriage Height Calibration ??? Page 5-24

The purpose of this Service Calibration is to adjust the distance between the Carriage and the Center Platen. This calibration is necessary in order to prevent problems like Printhead crashes.

Service Calibrations

Entering the Service Calibrations Menu

1Once the message "Ready" is displayed on the front-panel, scroll to the "Printer Setup Options" icon and press the Enter key.

2Once inside the "Printer Setup Options" menu, use the Arrow keys to scroll to the "Utilities" menu display and press the Enter key.

3Once inside the "Utilities" menu, press the UP and Enter keys together. You are now in the Service Tools Menu.

4Use the Arrow keys to scroll to the "Service Calibrations" menu and press the Enter key.

Top

Service Tools

Back

Service Calibrations

5Use the Arrow keys to scroll through the "Service Calibrations" selections.

Service Calibrations

1.Accuracy cal...

2.Line sensor cal...

3.Service station...

4.Roller mark position...

5.Pen to Paper Spacing...

6Press the Enter key to begin a specific calibration when the required Service Calibration is highlighted.

Service Calibrations

1In the Service Calibrations submenu, scroll to "1. Accuracy cal" and press Enter.

2When the following message appears on the front panel, select "Create Pattern" and press Enter.

Top

Recalibrate

Back

Service Calibrations

3If media is not loaded, the following message appears on the front panel and you must load media into the Printer.

ACCURACY

Load paper for calibration

4The Printer will start to print the Accuracy Calibration Pattern and the following message will be displayed on the front panel:

ACCURACY

Calibrating

5Once the Accuracy Calibration Pattern is completed, the following message will be displayed. Remove the pattern from the media and select "Measure Pattern" and press Enter.

Top

Recalibrate

Back

6Rotate the pattern so that the edge with the arrows points to the leading edge, and then reload the pattern with the arrow edge print facing down.

7The Printer will load the pattern and then measure the alignment marks using the line sensor on the Carriage Assembly. The

Service Calibrations

following message will be displayed while the Printer measures the pattern:

ACCURACY

Measuring

8Once the calibration is completed, the following message will be displayed:

Top

Back

9To check if the Calibration was completed correctly, print the Service Configuration Print (see Page 1-19) and check that the values given for the Accuracy Calibration are NOT ALL zero.

10If the calibration fails Perform the Electronic Systems Test ??? Page 4-5.

Service Calibrations

1In the Service Calibrations submenu, scroll to "2. Line Sensor cal" and press Enter.

2The following message will appear asking you to confirm the operation. Select ACCEPT if you want to continue the Line Sensor Calibration, or select CANCEL if you want to cancel the it. Press Enter once the selection has been made.

Top

Line Sensor Calibration

Back

Service Calibrations

3If you selected to continue, then the following message appears on the front panel if media is not loaded. You must load Media in to the Printer to continue.

4The Printer will start to print the Line Sensor Pattern and the following message will be displayed on the front panel:

Calibrating line sensor.

Please wait.

5Once the line sensor calibration is completed, the following message will be displayed on the front panel:

Top

6To check if the Calibration was completed correctly, print the Service Configuration Print (see Page 1-19) and check that the values given for the LED (Green/Blue) are NOT zero.

Check that these value are NOT zero

7If the calibration fails Perform the Electronic Systems Test ??? Page 4-5.

Service Calibrations

1In the Service Calibrations submenu, scroll to "3. Service Station" and press Enter.

2The following message will appear asking you to confirm the operation. Select ACCEPT if you want to continue the Service Station Calibration, or select CANCEL if you want to cancel the it. Press Enter once the selection has been made.

Top

3. Service Station

Back

Service Calibrations

3If you selected to continue, then the following message appears on the front panel if media is not loaded. You must load Media in to the Printer to continue.

4The Printer will start to print the calibration pattern and the following messages will be displayed on the front panel:

5Once the service station calibration is completed, the following message will be displayed on the front panel:

6To check if the Calibration was completed correctly, print the Service Configuration Print (see Page 1-19) and check that the calibrations are done and are within the stated limits.

Check that the Calibrations are done and within the limits

Service Calibrations

2The following message will appear asking you to confirm the operation. Select ACCEPT if you want to continue the Roller Mark Position Calibration, or select CANCEL if you want to cancel the it. Press Enter once the selection has been made.

Top

4. Roller Mark Position

Back

3If you selected to continue, the calibration will start and the following message will appear on the front panel:

Performing roller mark calibration

Please wait

Service Calibrations

4Once the roller mark position calibration is completed, the following message will be displayed on the front panel:

Top

Service Calibrations

1In the Service Calibrations submenu, scroll to "6. Color to Color cal" and press Enter.

2The following message will appear asking you to confirm the operation. Select ACCEPT if you want to continue the Calibration, or select CANCEL if you want to cancel the it. Press Enter once the selection has been made.

Top

6. Color to Color cal.

Back

Service Calibrations

3If you selected to continue, then the following message appears on the front panel if media is not loaded.

4The Printer will start to print the calibration pattern and the following message will be displayed on the front panel:

Calibrating pen to pen through scan axis.

Please wait

5Once the pen to paper spacing calibration is completed, the following message will be displayed on the front panel:

Top

If the calibration fails, then the following message will appear on

Service Calibrations

the front panel:

Calibration error.

Press ENTER to continue

In this case, to resolve the problem, try the following:

1If the calibration pattern is bad:

n Try recovering the Printheads using the front-panel menu and try the calibration again.

nIf the calibration pattern is bad again, then replace the Printhead of the color that is bad.

2 Perform the Electronics System test ??? Page 4-5.

Perform the Calibrations Backup as follows:

1In the Service Utilities submenu, scroll to "7. Calibrations Backup" and press Enter.

2When the following message appears on the front panel, you must select which component you have replaced. Select either the Electronics Module or Tubes System and press Enter.

If the Electronics Module was replaced

aIf the Electronics Module was replaced, then select Electronics Module and press Enter.

bThe following message will appear asking you to confirm the operation. Select ACCEPT if you want to continue the Calibrations Backup, or select

Service Calibrations

CANCEL if you want to cancel the Calibrations Backup. Press Enter once the selection has been made.

cIf you selected to continue, the Calibrations Backup will start to update the calibrations and the following message will be displayed on the front panel:

Updating Backup.

Please wait

dOnce the Calibrations Backup has been completed the following message will appear on the front panel:

Top

If the Tubes System was replaced

aIf the Tubes System was replaced, then select Tubes System and press

Enter.

bThe following message will appear asking you to confirm the operation. Select ACCEPT if you want to continue the Calibrations Backup, or select

Service Calibrations

CANCEL if you want to cancel the Calibrations Backup. Press Enter once the selection has been made.

cIf you selected to continue, the Calibrations Backup will start to update the calibrations and the following message will be displayed on the front panel:

Updating Backup.

Please wait

dOnce the Calibrations Backup has been completed the following message will appear on the front panel:

Top

Service Calibrations

8. Pen Alignment

1In the Service Calibrations submenu, scroll to "8. Pen Alignment" and press Enter.

2The following message will appear asking you to confirm the operation. Select ACCEPT if you want to continue the Calibration, or select CANCEL if you want to cancel the it. Press Enter once the selection has been made.

Top

8. Pen Alignment

Back

Service Calibrations

3If you selected to continue, then the following message appears on the front panel if media is not loaded. You must load Media in to the Printer to continue.

4The Printer will start to print the Alignment Pattern and the following message will be displayed on the front panel:

PRINTHEAD ACCESS

Aligning printheads Approximate

time remaining 6 min 30 sec

5Once the Pen Alignment calibration is completed, the following message will be displayed on the front panel:

Top

6If the calibration fails Perform the Electronic Systems Test ??? Page

4-5.

Service Calibrations

Carriage

Height

Tool

Figure 1

Correct: move using the belt.Incorrect: never move using Carriage Assembly.

Figure 2

1Disconnect the Ink Leak Detector Cable Connector from the back of the printer.

Service Calibrations

2 Remove the EMC Cover on the left hand side of the printing area.

3 Open the Carriage Cover on the left hand side of the printing area.

Service Calibrations

4 Insert the Carriage Height Tool into the black cartridge slot.

5 Close the Carriage Cover

.

Service Calibrations

6 Loosen the two T10 screws at the back of the Carriage Assembly.

7Using the belt, and beginning to the left hand side of the starting position (where the left hand edge of the paper is positioned when printing), move the Carriage Assembly back and forth along the length of the printer, you are listening for a scraping sound: if you hear a sound already you may proceed directly with step 9, if not you must lower the Carriage Assembly (step 8), and try again until a scraping sound is heard.

Service Calibrations

8Lower the Carriage Assembly slightly, by turning the T9 screw shown below anti-clockwise and then check for a scraping sound again as shown previously in step 7.

9On moving the Carriage Assembly along the length of the printer you should now hear a scraping sound: this sound indicates that you need to raise the Carriage Assembly (if there is no sound repeat step 8).

Service Calibrations

10Raise the Carriage Assembly slightly, by turning the T9 screw (shown below) clockwise

.

11 Check that there is no longer a scraping sound.

Service Calibrations

12When the scraping has been eliminated it is important to leave the Carriage Assembly as close as possible to the Center Platen: move the Carriage Assembly back and forth across the area where the scraping sound was, gently lowering and raising the Carriage Assembly until you are sure that it is as close as it possibly can be to the Center Platen without touching.

13Continue checking the full length of the printer until you arrive at the blue line used to load the cut sheet paper, repeating steps 10, 11 and 12 whenever a scraping sound is heard.

Service Calibrations

14When the complete length of the printer is calibrated (clear of any scraping sound), tighten the two T10 screws at the back of the Carriage Assembly to secure the current position.

15 Remove the Carriage Height Tool.

Print Quality

Print Quality

Print Quality Troubleshooting Checklist

When faced with an Print Quality problem, use the following checklist as a guide in troubleshooting the problem:

1Problem reproduction

n Reproduce the problem that the customer is seeing using their original settings.

2Printer configuration:

n Print Mode: Set to "Best" (in the printer and in the drivers).

n Dry time: Set to "Automatic".

n Select the correct media setting when loading the media.

3Hardware check list

Firmware Revision

nCheck if the latest version of the firmware is installed. If not Install the latest firmware revision. Refer to Chapter 7 for the part number of the Flash SIMM.

4 Printheads

Printhead Troubleshooting Process:

nIf you don???t have any samples yet, reproduce the original problem with the correct printer settings.

nPrint the Print Quality Test using the exact settings and Media that the Customer used when faced with the Print Quality problem

Printhead Alignment and Check:

nPerform the Printhead Alignment using HP High-Gloss Photo Paper. If not available, use Coated media if required.

5Media

n Make sure that you use HP or HP-approved media.

nSelect the correct media type through the front-panel when loading it.

6Driver print quality configuration:

To clarify if the reason of the problem is related with the print mode defined with the Non-HP Driver try the following:

nPrint the same sample using the Non-HP driver and their normal media.

Print Quality

nPrint one of the internal demos or print the Print Quality Test using HP Media and configuring the printer as indicated previously.

nIf the output obtained using the HP Solution is good and the one obtained through the 3rd party solution is bad, HP support organization should:

nCommunicate to the customer that the problem is not in the printer and that he should address it through the 3rd party vendor support structure.

7Service Accuracy Calibration

n Perform "Service Accuracy calibration" using HP High-Gloss Photo Paper.

Print Modes

The Printers have a large number of print modes. A print mode specifies how to interpret and put on media a set of bitmap planes, each of which consists of a sequence of rows. Each mode corresponds to a unique combination of the following parameters:

nPrint resolution (300 dpi, 600 dpi, 1200 x 600 addressable).

nNumber of passes per advance.

nNumber of advances per swath.

nPrint direction (bidirectional).

nCarriage speed.

nSmart Area Fill (SAF).

nPrint masks.

nServicing states.

nMultiple dotting (K).

User input to print mode selection consists of the following:

nChoice of media type.

nChoice of print-quality setting (fast, normal, best).

nThe language in which the file is received.

nThe model of printer used.

nThe type of driver (HP or Non-HP).

Print Quality

How to Use the Print Quality Test

What is the Print Quality Test?

The Printer contains an internal Print Quality Test which helps you to diagnose the possible source of any print quality defects. The Print Quality Test is divided into three parts:

aNozzle print test, designed to check if the printhead nozzles print correctly.

bColor alignment test, designed to check any color-to-color misalignment the printer may have.

cOverall print quality in BEST mode, specifically designed to diagnose banding problems in high density areas.

Considerations for Printing the Print Quality Test.

1The Print Quality Test prints in A3 and B sizes so you must have media loaded (roll or sheet) that is this size or larger.

2Use the same type of media that the customer was using when they found the print quality problem.

3If the customer is using non-HP media and after the Print Quality Test you still have the same print quality problems, change to genuine HP media and repeat the Print Quality Test.

4If you do not see any problems with the Print Quality Test, then the problem may not be with the printer itself. The problem may be with the RIP or the driver for example.

However if you do see problems with the Print Quality Test then continue with the following procedures which will help you to diagnose the problem.

Printing the Print Quality Test

1 Go to the printer submenu and press Enter.

Print Quality

2 Select Print Quality from the Utilities/Test Prints menu, then press Enter

Print Quality

Print Quality

Nozzle Print Test

The nozzle print test is located on the Print Quality Test in the top section. In this test the 512 nozzles that each printhead uses to print with are tested.

This is what you would see if there are nozzles not printing correctly:

1In the top pattern of the Print Quality Test, there is a series of stepped diagonal lines. If one or more of the nozzles are malfunctioning or mis-positioned, you will see that the stepped lines are broken or misdirected in one or more places.

2Below the top pattern on the Print Quality Test, there is a series of horizontal straight lines. If one or more nozzles are misdirected there will be unequal spaces between the corresponding lines.

1 Go to the Printer submenu and press Enter.

2Go to the Utilities/Recover Printheads.

3Select the printhead color that is responsible for the problem. The printer will try to ???Recover??? the defective printhead. If you are not sure which printhead color is giving you the problem select all of the printheads. Please wait as the process of recovery takes a few minutes.

4Reprint the Print Quality Test to check that the defective nozzles have been corrected.

5If the error is still present, replace the worst printheads.

Color Alignment Print Test

This part of the Print Quality Test is designed to check the color alignment. It produces twelve patterns each with two different primary colors. In each pattern you will see a cross surrounded by another color. If there is misalignment between the colors there will be inconsistent spacing between the cross and the other color.

There are two types of misalignment:

nHorizontal - when the misalignment is in the horizontal axis.

nVertical - when the misalignment is in the vertical axis.

Print Quality

Below are shown two examples of alignment and misalignment:

C6074276

Solving the Color Alignment Problem

1Make sure you have media loaded (not clear film, vellum or tracing paper).

2Go to the printer submenu and press Enter.

Print Quality

Overall Print Quality Test in BEST mode

Blue, Green, Red, Black, Yellow, Magenta, Cyan Test

This test pattern checks performance for banding in Best mode only for the media you are using.

3

C6074279

What is Banding?

Banding is when you see repetitive horizontal bands within your printed image (these may appear as light or dark bands).

The test pattern is printed with four primary colors; black, cyan, magenta and yellow. The three secondary colors printed are red, blue and green and they are formed by mixing the primary colors as shown in the table below:

Print Quality

Solving the Banding Problem

There main causes of banding:

nPrinthead problems (see below).

nUse of Non-HP media

nIncorrect media type selected in the front panel.

nMedia advance problems.

Banding Caused by Printhead Problems

In this case you will see banding in only a few colors.

If the test pattern has clear or dark horizontal bands in one or more of the primary color columns, then several of the secondary color columns will also have the same type of bands in the same position (but perhaps with less intensity).

In the following example, several nozzles in the magenta printhead are not printing. There will be clear repetitive bands (perhaps white) in the magenta column. Consequently, you will see lower intensity bands in the same print position in the red (which is Magenta + Yellow) and blue (which is Magenta + Cyan) of the secondary color columns.

3

C60742

1The bands could be caused by the nozzles not printing correctly. You can check the health of the nozzles by performing the Nozzle Print Test.

Print Quality

2The light or dark horizontal lines could also be caused by permanently damaged printheads. The possible combinations with this problem are:

nBanding in cyan, blue and green columns only, but more evident in cyan. This means that the cyan printhead could be permanently damaged.

nBanding in magenta, red and blue columns only, but more evident in magenta. This means that the magenta printhead could be permanently damaged.

nBanding in yellow, red and green columns only, but more evident in yellow. This means that the yellow printhead could be permanently damaged.

nBanding in black column only. This means that the black printhead could be permanently damaged.

C6074281

Print Quality

3 Perform the printheads alignment procedure.

Service Accuracy Calibration

If the banding problem remains after using HP Media and trying the above steps to resolve the problem, perform the Service Accuracy Calibration ??? Page 5-6.

Print Quality

Troubleshooting Print Quality Problems

Problems with Stepped Lines

Description of problem

When you look at the image you have printed there are ???stepped lines??? in the borders of arrows and diagonal lines. The lines should be straight with no stepping.

Shown below is an example of what you might see if you have problems with Stepped Lines.

C6074283

How to solve the problem

1Increase the dpi setting by changing the print quality to best in the front panel and driver software.

2The problems may be inherent in the image you are trying to print. Try to improve the image with the application that generated the file.

Print Quality

Problems with printing lines

Description of problem

When you look at the image you have printed there are:

nMissing or faint lines

nPrinted text having missing parts to them.

Shown below are examples of what you might see if you have problems with printing lines.

How to solve the problem

1 Go to the printer submenu and press Enter.

Print Quality

Problems with Color-to-Color Alignment

Description of problem

When you look at the image you have printed:

nThe colored lines are printing double and they are the wrong colors,

C6074286

nThe borders of colored blocks are overlapped and the overlapping areas have different colors in them.

C6074287

n Vertical lines are mis-aligned or fuzzy (not smooth)

C6074304

How to solve the problem

1Make sure you have paper loaded (not clear film, tracing paper or vellum).

Print Quality

2 Go to the Printer submenu and press Enter.

Print Quality

Problems with Horizontal Lines (Banding)

Description of problem

When you look at the image you have printed there are light or dark lines on the image, these are particularly highlighted in high density ink areas. This problem is known as banding.

1Ensure that the paper you have selected in the front panel is the same paper that you have loaded.

2Perform the Printhead Alignment Calibration.

3Reprint your image.

4If you have printed your image in Normal or Draft mode and it is not acceptable to you, re-print it in Best mode. Check the front panel and driver selection to make sure that Best mode is selected.

Print Quality

5 Go to the printer submenu and press Enter.

C607482

Missing lines

9If there are any of the above defects visible in the test print, continue with step 9a. If there are no defects in the top part of the print test, go to directly to step 10.

a Go to the printer submenu and press Enter.

Print Quality

dPerform the printhead alignment procedure.

eReprint the image you were attempting to print before (in the same mode) to see if the problem still exists.

fIf there is no improvement in the quality of your image, print the Print Quality Test again and continue to the next step.

10Check the bottom section of the Print Quality Test. If there is banding in all colors, continue with step 10a. If there is banding in only a few colors go directly to step 11.

3

Print Quality

11When you look at the image you have printed there is banding on the image, but only in a few colors, similar to the example shown below.

3

C6074280

a The possible combinations with this problem are:

nBanding in cyan, blue and green columns only, but more evident in cyan. This means that the cyan printhead could be permanently damaged.

nBanding in magenta, red and blue columns only, but more evident in magenta. This means that the magenta printhead could be permanently damaged.

nBanding in yellow, red and green columns only, but more evident in yellow. This means that the yellow printhead could be permanently damaged.

nBanding in black column only. This means that the black printhead could be permanently damaged.

Print Quality

No Printing Defects Found in the Print Quality Test

If all the test patterns from the Print Quality Test are correct and you still experience print quality problems, here are some of the more likely causes to check:

nThe print mode used in your printer is not right for the image you are printing (this is defined by the printer???s front-panel menu selections)

nNon-HP driver

nThe RIP (If you are using one)

nThe software applications you are using.

Use the following table to configure your system correctly.

Print Quality

Solving Color Accuracy problems

These are two areas you should review when troubleshooting a color accuracy problem:

Configuration (PostScript option only)

Check that you are using the correct driver setting and CRD information for the software. Check which ink emulation mode has been selected in the front panel.

Media

Make sure that the media loaded is genuine HP media and that the correct media type has been selected on the front panel and in the driver.

Color Consistency problems

nIf color consistency is important for the customer, it is recommended that they do not use HP-GL/2 to print with.

nSome media may discolor or change with age. Check that the media is fresh and has been stored correctly.

nIf the environmental conditions that the customer is printing in change rapidly, you may see changes in the color consistency. By reducing the time the print stays in extreme environmental conditions after being printed (especially very high humidity) you can reduce the color consistency problems.

nIf you notice that there are color changes between different printers i.e. between the 750C and this printer. It is normal. There will be color differences between HP DesignJet printers because the other printers use a different type of ink.

Long Term Color Bleeding (Glossy Papers)

If you see the colors are bleeding into the paper i.e. the color is soaking into the paper making the lines fuzzy and bleary. This will be because of the humidity conditions that the printer is working under:

n Ask the customer to change the paper that they are printing with.

or

n Remove the printer from the high humidity conditions.

Print Quality

Color Accuracy Configuration

The configurations of the printer, the driver, and the software RIPs define how ink is applied to each type of media. Use the information in the following table to configure the printer and software for best color accuracy.

Print Quality

There are Smears or Scratching on the Printed Media

This problem can appear on paper-based coated media if a lot of ink printed quickly. The media cannot absorb the ink quickly enough and becomes distorted. As the printheads move over the media, the printheads and the media come into contact with each other and the printed image is smeared.

1Press the Cancel key on the front panel; if you continue to print, the paper may damage the printheads.

2Cancel the print job from your computer application.

In order to obtain better results perform the following:

nUse HP recommended media. If the image you are printing has intense color, use HP Heavy Coated Paper

nUse extended margins, or try to increase the print margins by relocating the image on the page from the software application.

nIf the customer is using ???Media Saving Options??? from the advanced section of the HP- GL/2 Driver, try disabling one or both of the options ???auto rotate??? and ???inked area???.

If the above fails to solve the problem of smears and scratching, change the media that the customer is using to a non-paper based media such as HP High Gloss Photo Paper.

Parts and Diagrams

Printer Support

Printer Support

Parts and Diagrams

5

3

3

2

4

1

2

Figure 3: Printer Support

Parts and Diagrams

Rear Covers

Printer Support

Parts and Diagrams

2

9

1 13

3 13

10

8

11 14

12

Figure 4: Rear Covers

Parts and Diagrams

Electronics Module

Printer Support

Parts and Diagrams

10

9

3

Parts and Diagrams

Right Hand Cover

Printer Support

Parts and Diagrams

1

6

2

5

4

2

2

Figure 6: Right Hand Cover

Parts and Diagrams

Left Hand Cover and Window

Printer Support

Parts and Diagrams

2 6

4

2 2

5 3

9

1

8

Figure 7: Left Hand Cover and Window

Parts and Diagrams

Right Hand Assemblies

Printer Support

Parts and Diagrams

1

2

3

Figure 8: Right Hand Assembly

Parts and Diagrams

ISS and APS Assembly

Printer Support

Parts and Diagrams

2

1

Figure 9: Ink Supply Station

Parts and Diagrams

Clutch Assembly

Printer Support

Parts and Diagrams

1

2

2

1

Figure 10: Clutch Assembly

Parts and Diagrams

Carriage Assembly

Printer Support

Parts and Diagrams

5

1

3

4

2

Figure 11: Carriage Assembly

Parts and Diagrams

Scan-Axis Assemblies

Printer Support

Parts and Diagrams

Figure 12: Scan-Axis Assemblies

Parts and Diagrams

Drive Roller and ARSS Miscellaneous Parts

Printer Support

Parts and Diagrams

5

5

6

5

1

2

2

Figure 13: Drive Roller and ARSS Miscellaneous Parts

Parts and Diagrams

Paper Path Assemblies

Printer Support

Parts and Diagrams

2

4

3

5 and 6 1

7

8

3

Figure 14: Paper Path Assemblies

Parts and Diagrams

Pinch Assembly

Printer Support

Parts and Diagrams

1 1

2

Figure 15: Pinch Assembly

Parts and Diagrams

Drive Roller Assemblies

Printer Support

Parts and Diagrams

2

3

Figure 16: Drive Roller Assemblies

Parts and Diagrams

Center Guide and Media Sensor

Printer Support

Parts and Diagrams

2

2

3

1

2

Figure 17: Center Guide and Media Sensor

Parts and Diagrams

Tubes Guide Assemblies

Printer Support

Parts and Diagrams

4

4

4 1

2

Right Hand Side

3

5

4

4

Left Hand Side

Figure 18: SRK Tubes Guide Assemblies

Parts and Diagrams

Ordering Accessories

Parts and Diagrams

Item HP Part Number

Drivers

Latest versions of the following were shipped with the 1055CM:

HP DesignJet PostScript Driver for Power Macintosh and Macintosh

HP DesignJet PostScript Driver for Microsoft Windows

HP-GL/2 Windows Driver

HP DesignJet HP-GL/2 and HP RTL AutoCAD driver.

NOTE: For details of the latest version available, please visit the Hewlett Packard web site at: http://www.hp.com/go/designjet or consult your HP dealer or sales representative.

Paper Supplies

This item is updated regularly. Please visit the Hewlett Packard web site at: http://www.hp.com/go/designjet or consult your HP dealer or sales representative.

Parts and Diagrams

Removal and Installation

Removal and Installation

Electrostatic Discharge (ESD) Precautions

To prevent damage to the Printer circuits from high-voltage electrostatic discharge (ESD):

1.Do not wear clothing that is subject to static build-up.

2.Do not handle integrated circuits (ICs) in carpeted areas.

3.Do not remove an IC or a printed circuit assembly (PCA) from its conductive foam pad or conductive packaging until you are ready to install it.

4.Ground (earth) your body while disassembling and working on the Printer.

5.After removing a cover from the Printer, attach an earthing (ground) lead between the PCA common and earth ground. Touch all tools to earth ground to remove static charges before using them on the Printer.

6.After removing any PCA from the Printer, place it on a conductive foam pad or into its conductive packaging to prevent ESD damage to any ICs on the PCA.

Required Tools

The following tools are required to disassemble and repair the Printer.

Long Torx Screwdriver with the indicated attachments

Nut driver with the indicated attachments

Small flat-blade screwdriver

Removal and Installation

Right Hand Cover

2.Disconnect the front panel cable from position P16 FRONT PANEL on the electronics module.

3.Disconnect the aerosol fan cable from position P7 AEROSOL FAN on the electronics module.

4.Remove two T-15 screws (item 1) from the right hand trim (item 2).

5.Remove two T-15 screws (item 4) from the rear of the right hand cover which are securing the cover to the right hand side chassis.

6.Remove the right hand cover (item 3) by making sure you:

a carefully pull the front panel cable and the aerosol fan cable from a hole in the right hand side chassis.

b disconnect the service station door sensor cable, which hangs down from the service station cable.

Removal and Installation

4

1

2

3

C607407

Figure 1: Right Cover

Removal and Installation

Installation of the Right Hand Cover

Front Panel Assembly

1.Remove the following:

1. "Right Hand Cover" see page 8-4.

2.The Front Panel Assembly and the Front-Panel Assembly Cable can be removed by releasing them from the retaining clips (item 1) and cable clamps (item 2) inside the Right Hand Cover (item 3) (Refer to Figure 2).

3

1

2

C607436

Figure 2: Front Panel

Removal and Installation

Right Hand Trim and Window Switch

1.Remove the following:

1. "Right Hand Cover" see page 8-4.

2.Disconnect the Window Switch cable from the Service Station cable.

3.Remove 2 screws (Item 1) that attach the Right Hand Trim (Item 2) to the Printer.

4.Remove the Right Hand Trim (Item 2) from the Printer.

1

2

Figure 3: Right Hand Trim

Removal and Installation

Service Station Assembly

1.Remove the Printhead Cleaners (Refer to the User Guide).

2.Remove the following

1. "Right Hand Cover" see page 8-4.

3.Disconnect the service station cable from the electronics module out of position SERVICE STATION.

4.Disconnect the window switch and right door switch cables from the service station cable.

5.Unclip the Scan-Axis Motor cable from the Service Station.

6.Manually slide the carriage assembly to the middle of the printer.

7.Between the carriage assembly slider rods there are two holes. These holes give you access to two T-15 screws (item 3). Remove the two T-15 screws.

8.Loosen the T-15 screw (item 1) securing the service station to the side of the printer. This screw is long and does NOT need to be fully loosened.

9.Lift the service station (item 2) off the loosened screw (item 1) and standing in front of the printer, slide the assembly towards you.

Removal and Installation

Removal and Installation

Drop Detector Assembly

Refer to Figure 5.

1.Remove the Printhead Cleaners (Refer to the User Guide).

2.Remove the following

1."Right Hand Cover" see page 8-4.

2."Service Station Assembly" see page 8-8.

3.Disconnect the Drop Detector cable from the Service Station Cable.

4.Remove the screw (item 1) that attaches the Drop Detector Assembly (item 2) to the Service Station (item 3).

5.Remove the Drop Detector from the Service Station.

1

2

3

C607436

Figure 5: Drop Detector Assembly

1.Remove the following:

1."Right Hand Cover" see page 8-4.

2."Service Station Assembly" see page 8-8.

2.Disconnect the vacuum fan cable from position P7 VACUUM FAN on the electronics module.

3.Remove the four T-15 screws (item 1) securing the vacuum fan assembly (item 2) to the right hand side chassis and remove the assembly.

C607421

Figure 6: Vacuum Fan

Removal and Installation

Paper-axis Motor Assembly

Refer to Figure 7.

1.Remove the following:

1."Right Hand Cover" see page 8-4.

2."Service Station Assembly" see page 8-8.

2.Disconnect the Paper-axis Motor cable from position P3 PAPER MOTOR on the electronics module.

3.Disconnect the Paper-axis encoder cable from position P1 PAPER ENCODER on the electronics module.

4.Remove the two T-10 screws (item 1) securing the gear (item 2) to the right side of the roller and remove the gear.

5.Remove the four T-20 screws (item 3) securing the Paper-axis Motor Assembly (item 4) to the right hand chassis. Remove the Paper-axis Motor Assembly.

1

3

2

Removal and Installation

Left Hand Cover

1.Open the door at the back of the left hand cover by removing the two T-15 screws (item 1) (refer to Figure 8).

1

Figure 8: Left Hand Cover

Removal and Installation

2.Release the tube holder (item 1) from the rear of the left hand cover by pushing it up and out (refer to Figure 9).

1

2082a

Figure 9: Tube Grip

3.Twist the two latches at the rear of the ink cartridge tube connector outwards (refer to Figure 10). This will release the complete assembly.

1

2

Figure 10: Latches

Removal and Installation

4.Slide the ink cartridge tube connector assembly towards you (refer to Figure 11).

1

2082c

Figure 11: Ink Cartridge Tube Connector (pulled back)

5.Disconnect the ink cartridge tube connector cable (refer to Figure 12).

1

Figure 12: Ink Cartridge Tube Connector Cable

Removal and Installation

6. Disconnect the air tube (refer to Figure 13).

Figure 13: Air Tube

7.Remove the ink cartridge tube connector (item 1) from the rear of the left hand cover (item 2) and store it safely on top of the Printer (refer to Figure 14).

2

1

C607431

Figure 14: Ink Cartridge Tube Connector (pulled out)

Removal and Installation

8.Remove two T-15 screws (item 1) from the left hand trim.

9.Remove two T-15 screws (item 2) from the rear of the left hand cover which are securing the cover to the left hand side chassis.

1

4

C607406

Figure 15: Left Hand Cover

Removal and Installation

Left Hand Trim Assembly

Refer to Figure 16.

Removal

1.Remove 4 screws (Item 1) that attach the Left Hand Trim (Item 2) to the Printer.

2.Remove the Left Hand Trim (Item 2) from the Printer.

C607406

Figure 16: Left Hand Trim

Removal and Installation

Ink Supply Station Assembly (ISS)

Refer to Figure 17.

Removal

3.Disconnect all the cables from the right hand side of the electronics module.

4.Unclip the latch and lift up the front of the assembly to release the front support of the ISS from a hole in the side chassis.

5.Push the ISS away from you to release the back support of the ISS from a second hole in the side chassis.

6.Move the ISS to the left to remove completely.

Figure 17: Ink Supply System

Removal and Installation

Air Pressurization System (APS)

Removal

3.Release the APS from the retaining clips underneath the ISS as shown in Figure 18.

Release from these clips

Removal and Installation

Clutch Assembly and left hand miscellaneous parts

Refer to Figure 19 and Figure 20.

Removal

2.Pull apart the two tabs on the Paper Entry gear (item 1) and remove the gear.

3.Using a long screwdriver remove two T-15 screws (item 5) securing the clutch bracket (item 6) to the side chassis.

4.Remove the special T-20 screw (item 2).

5.Remove the gears (item 3) and the spring (item 4) in the clutch assembly. Refer to the note above.

.

5

6

Figure 19: Clutch Assembly

Removal and Installation

6.Remove the two T-10 screws (item 1) from the left roller gear (item

2)attached to the left side of the roller.

7.Remove the two T-20 screws (item 3) from the roller support (item

4)and remove the support.

8.Release the tension from the torsion spring (item 5) by removing the arm of the spring off the spring hook (item 6).

9.Remove the two T-15 screws (item 7) from the pinch sensor bracket (item 8) and remove the bracket with the sensor attached. Release the sensor cable from retaining clips to remove completely.

10.Remove the spring hook (T-15) (item 6).

Figure 20: Miscellaneous Parts

Removal and Installation

Tail Deflectors and Rear Platen

1.Remove the three Deflectors (item 1) by unclipping them from the Rear Platen (Item 3).

2.Remove two T-10 screws (item 2) on the left and right of the Rear Platen (item 3) and remove the platen.

2

3

1

Figure 21: Tail Deflectors and Rear Platen

Removal and Installation

Left and Right Rear Covers

1.Remove the T-10 Screw (Item 1) that attaches the left hand rear cover (Item 2) to the Printer.

2.Release the left hand rear cover (Item 2) from the retaining clip (item 3) that attaches the ferrite (item 4) to the rear cover.

3.Remove the T-10 Screw (Item 5) that attaches the right hand rear cover (Item 6) to the Printer.

4.Release the right hand rear cover (Item 6) from the retaining clip.

6

Figure 22: Left and Right Rear Covers

Removal and Installation

Electronics Module

Refer to Figure 23 and Figure 24.

Removal

2.Locate the four T-10 screws (item 1) that secure the DIMM cover (item 2) to the Electronics Module. Remove the four screws and the DIMM cover.

Note the position of the DIMMs. From left to right:

n The DRAM DIMM(s) are held in the 1st and 2nd slot (item 3).

nThe Firmware/Postscript Code DIMM (Flash DIMM) are held in the 3rd slot (Item 4).

3.Remove the DIMMs by releasing the retaining clips at the top and bottom of each one, holding the outer non-metallic edge and gently pulling towards you. Store these parts in a safe place.

4.With a flat end screwdriver, unscrew the two screws that attach the EIO card (item 5) to the Electronics Module. Remove the EIO card and store in a safe place.

5.With a flat end screwdriver, unscrew the two screws that attach the Hard Disk Drive (item 6) to the Electronics Module. Remove the Hard Disk Drive and store in a safe place.

6.Disconnect the Trailing Cable by releasing it from retaining clips in the socket and carefully pulling it towards you.

7.Carefully disconnect all the cables from the left and right side of the electronics module.

Removal and Installation

5

4

3

6

8.Remove two T-20 screws (item 1) which can be found at both ends of the electronics module at the bottom.

9.Loosen (do not remove) the two remaining T-20 screws (item 2) and carefully remove the whole electronics module (item 3) by sliding it up and pulling towards you.

3

Figure 24: Electronics Module

1.Start reconnecting the Trailing Cable from left to right (the longest strip will be connected to the 1st clip from the right).

2.Make sure you push the Trailing Cable in straight and not bent. Once the Trailing Cable is inserted, you should hear an audible click.

3.When the Trailing Cable is inserted correctly, the shaded part (as shown below) will not be visible.

4.Before powering ON the Printer, check the continuity (using a tester) between the two points (as shown below).

nIf there is continuity between the two points, then the Trailing Cable is installed incorrectly. Do NOT power ON the Printer because you will burn an internal Electronics Module fuse.

Disconnect the Trailing Cable and reconnect again using the above steps.

nIf there is no continuity between the two points, then it is possible to power ON the Printer without burning the internal Electronics Module fuse, but there is a possibility that you may still get the System Error Code 0B0006, in which case you have to reconnect the Trailing Cable using the above steps.

Check Continuity between these 2 points

This part will NOT

be visible when installed correctly

Removal and Installation

Removal and Installation

Media Sensor

1.Remove the following:

1. "Center Guide" see page 8-71.

2.Carefully remove the media sensor (item 2) from underneath the center guide (item 1) (refer to Figure 25).

2

1

Figure 25: Media Sensor

1.Remove the following:

1. "Electronics Module" see page 8-25.

2.Reach underneath the Center Guide and carefully remove the media sensor by pulling it gently down.

Removal and Installation

Window

C607404

Figure 26: Window

1.Remove one T-15 screw Item 1) from the front of the top cover (item 2).

2.Remove five T-15 screws (item 3) from the rear of the top cover.

3.The top cover (Item 2) can now be released from retaining clips and then removed.

1

3

2

C607405

Figure 27: Top Cover

Removal and Installation

Back Cover

1.Remove the following:

1. "Top Cover" see page 8-31.

2.Remove three T-15 screws (item 1) from the bottom of the back cover (item 2). Lift the back cover up and remove.

C607405

Figure 28: Back Cover

Removal and Installation

Scan-axis Motor Assembly

1.Remove the following:

1."Right Hand Cover" see page 8-4.

2."Left Rear Cover" see page 8-24.

2.Disconnect the scan motor cable from position P3 SCAN MOTOR in the electronics module.

3.Remove the two T-15 screws (item 1) that attach the Scan-axis motor (item 2) to the Chassis.

4.Hold the Scan-axis motor at an angle, just enough so that the belt (item 3) can be taken off.

5.Remove the Scan-axis Motor from the printer.

11

3

2

C60718

Figure 29: Scan-axis Motor Assembly

Removal and Installation

Encoder Strip

Refer to Figure 30 to Figure 32.

Removal

2.Remove five 7mm nuts (item 1) from the EMC Cover (item 2).

3.Remove two T-15 screws (item 3) from the EMC Cover and remove the plate.

Figure 30: Encoder Strip

Removal and Installation

4.Remove the 5.5mm nut (item 1) from the left side of the Printer that attaches the Encoder Strip (item 3) to Spring Clip (item 2).

5.Release the Encoder Strip (item 3) from the retaining pin (item 4) on the Spring Clip (item 2).

3

4

Figure 31: Encoder Strip

Removal and Installation

6.Remove the 5.5mm nut (item 1) from the right side of the printer securing the encoder strip (item 2).

7.Remove the encoder strip from retaining pins (item 3) on the right side of the Printer Chassis.

8.Remove the encoder strip spacer (item 4).

9.Release the encoder strip from the carriage assembly.

10.Release the encoder strip from all the retaining pins (item 5) along the back of the printer.

11.The encoder strip can now be removed from the printer.

2

5

C607411

Figure 32: Encoder Strip

1.Remove the following

1. "Left Hand Cover" see page 8-13.

2.To release the tension on the belt (item 1) from the left hand side of the Printer, squeeze the spring (item 2) using the tensioner wedge clip (item 3) until you hear it click into place (refer to Figure 33).

2

3

1

C607415

Figure 33: Tensioner Assembly

Removal and Installation

3.Remove the belt (item 1) from the belt motor pulley (item 2) on the right hand side of the Printer (refer to Figure 34)

2

1

Figure 34: Tensioner Assembly

4.Remove the tensioner pulley (item 1) from the belt (item 2) which is located in the tensioner assembly (item 3).

5.Remove the two T-15 screws (item 4) securing the tensioner assembly to the slider rods (item 5).

6.Remove the tensioner assembly (item 3).

5

4

3

Figure 35: Tensioner Assembly

Removal and Installation

Trailing Cable

Refer to Figure 36 and Figure 37.

Removal

2.Manually slide the carriage (item 1) to the left side of the printer.

3.Unclip and remove the trailing cable restraining clip (item 2).

4.Carefully disconnect the trailing cable (item 3) from connectors in the Carriage PCA (item 4).

5.Remove the trailing cable from the trailing cable holder (item 5).

2

3 5

4

1

C607412

Figure 36: Trailing Cable

Removal and Installation

6.Remove the T-15 screw (item 1) from the trailing cable holder (item 2) and remove.

7.Remove two T-10 screws (item 3) from the trailing cable clamp (item 4). Remove the trailing cable clamp (item 4).

8.Carefully disconnect the trailing cable from the electronics module and pull the trailing cable away from the printer.

3

4

2

1

1.Start reconnecting the Trailing Cable from left to right (the longest strip will be connected to the 1st clip from the right).

2.Make sure you push the Trailing Cable in straight and not bent. Once the Trailing Cable is inserted, you should hear an audible click.

Removal and Installation

3.When the Trailing Cable is inserted correctly, the shaded part (as shown below) will not be visible.

4.Before powering ON the Printer, check the continuity (using a tester) between the two points (as shown below).

nIf there is continuity between the two points, then the Trailing Cable is installed incorrectly. Do NOT power ON the Printer because you will burn an internal Electronics Module fuse. Disconnect the Trailing Cable and reconnect again using the above steps.

nIf there is no continuity between the two points, then it is possible to power ON the Printer without burning the internal Electronics Module fuse, but there is a possibility that you may still get the System Error Code 0B0006, in which case you have to reconnect the Trailing Cable using the above steps.

Check Continuity between these 2 points

This part will NOT

be visible when installed correctly

Make sure you install the trailing cable straight without any bubbles

Removal and Installation

Cutter Assembly

Refer to Figure 38 to Figure 40.

1.Remove the following:

1. "Top Cover" see page 8-31.

2.Move the carriage to a position where you can access the printhead tube connector (refer to Figure 38).

Printhead tube connector

Figure 38: Cutter Assembly

Removal and Installation

3.Loosen the retaining screw T-9 at the back of the printhead tube connector.

4.Remove the printhead tube connector (refer to Figure 39).

Figure 39: Cutter Assembly

5. Move the Printhead tube connector to a safe position.

6.Remove one screw (item 1) and washer (item 2) that attaches the Cutter Assembly (item 3) to the Carriage Assembly (item 4).

7.Slide the Cutter Assembly (item 3) towards you and remove from the Printer.

4

1

2

3

C607417a

Figure 40: Cutter Assembly

Removal and Installation

Carriage Assembly and Belt

Refer to Figure 41 to Figure 51.

1.Remove the following:

1."Top Cover" see page 8-31.

2."Right Hand Cover" see page 8-4.

3."Left Hand Cover" see page 8-13.