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HP

DesignJet 1050C/1055CM

Large-Format Printers

Service Manual

For HP Internal Use Only ęCopyright Hewlett-Packard Company 1999 This document contains proprietary information that is protected by copyright. All rights are reserved. No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of HewlettPackard Company. First Edition, March 1999

Warranty The information contained in this document is subject to change without notice. Hewlett-Packard makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Hewlett-Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.

WARNING The procedures described in this manual are to be performed by HP-qualified service personnel only. Electrical Shock Hazard Serious shock hazard leading to death or injury may result if you do not take the following precautions: - Ensure that the ac power outlet (mains) has a protective earth (ground) terminal. - Disconnect the Printer from the power source prior to performing any maintenance. - Prevent water or any other liquids from running onto electrical components or circuits, or through openings in the enclosure. Electrostatic Discharge Refer to the beginning of Chapter 8 of this manual, for precautions you should take to prevent damage to the Printer circuits from electrostatic discharge. Safety Symbols General definitions of safety symbols are given immediately after the table of contents.

WARNING
The Warning symbol calls attention to a procedure, practice, or the like, which, if not correctly performed or adhered to, could result in personal injury. Do not proceed beyond a Warning symbol until the indicated conditions are fully understood and met.

CAUTION
The Caution symbol calls attention to an operating procedure, practice, or the like, which, if not correctly performed or adhered to, could result in damage to or destruction of part or all of the product. Do not proceed beyond a Caution symbol until the indicated conditions are fully understood and met.

Technical Marketing, Barcelona Division, Hewlett-Packard Espanola, S.A. Avda. Graells, 501 08190 Sant Cugat del Valles Spain

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HP

DesignJet 1050C/1055CM

Large-Format Printers

Service Manual

Using this Manual
Purpose
This Service Manual contains information necessary to test, calibrate and service: n HP DesignJet 1050C Printer (Model C6074A) n HP 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.

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HP DesignJets 1050C and 1055CM Printers Service Manual

Table of Contents

Table of Contents
Troubleshooting 1-1

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

HP DesignJets 1050C and 1055CM Printers Service Manual

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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

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HP DesignJets 1050C and 1055CM Printers Service Manual

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

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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

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HP DesignJets 1050C and 1055CM Printers Service Manual

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

HP DesignJets 1050C and 1055CM Printers Service Manual

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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

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HP DesignJets 1050C and 1055CM Printers Service Manual

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

HP DesignJets 1050C and 1055CM Printers Service Manual

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Table of Contents

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HP DesignJets 1050C and 1055CM Printers Service Manual

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 Cut Sheet rice paper loading failure 1-13 34" Rice Paper not supported 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

HP DesignJets 1050C and 1055CM Printers Service Manual

1-1

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: n Model and Serial Number of the printer. n Which firmware revision the printer is using (See Note below). Check firmware in Utilities / Statistics / Code rev. n The complete error number (See Note below). n The Service Configuration Print Page 1-19 n The Current configuration sheet. n Which software application the customer is using (name, version, etc.).
NOTE

When reporting the System Error Code, make sure that you supply the full Error Code (including the last 8 numbers where applicable) and the firmware version. Without this information, HP Support Personnel cannot help you.

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HP DesignJets 1050C and 1055CM Printers Service Manual

Troubleshooting

Performing a Service Test on a Failed Assembly
If possible, always perform a Service Test on the component/ assembly that you are about to replace, just to make sure that is the component/assembly that has failed.
NOTE

If the test on that component/assembly passes, you should NOT replace it. For information on the Service Tests and how to use them see Chapter 4 - Service Tests and Utilities.

Performing the Necessary Service Calibrations
Is the printer calibrated correctly after replacing a component? Refer to the table on Page 5-2 to determine when a calibration is required.
NOTE

Remember that certain Calibrations are required even if an Assembly has been disassembled to gain access to another Assembly or Component. For information on the Service Calibrations and how to use them see Chapter 5 - Service Calibrations.

Solving Image Quality Problems
Whenever an Image Quality problem appears, it is advisable to print the Image Quality Print to help diagnose the problem. The Image Quality Print will help you differentiate between possible printhead errors and other problems such as incorrect front-panel selection, driver or RIP configuration or mechanical problems. For information on solving Image Quality problems see Chapter 6 Print Quality.

HP DesignJets 1050C and 1055CM Printers Service Manual

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Troubleshooting

Front-Panel LEDs Flash Briefly at Power ON & Nothing Else Happens
The Power Supply detects a Short and shuts down the Power. 1 The 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.
NOTE

If the Printer DOES NOT function correctly with the Hard Disk Drive and the Network Card removed, then you must replace the Electronics Module. d Switch the Printer ON again e If the Printer functions correctly with the Network Card installed, switch the Printer OFF again.

NOTE

If the Printer DOES NOT function correctly with the Network Card installed, then you must replace it. f Reinstall the Hard Disk Drive correctly, making sure that the two installation screws are completely tightened. g Switch the Printer ON again h Check if the Printer functions correctly with the Hard Disk Drive installed.

NOTE

If the Printer DOES NOT function correctly with the Hard Disk Drive installed, then you must replace it. 2 Make sure that none of the cables connected to the Electronics Module have been pinched between the cover and the sideplate.

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HP DesignJets 1050C and 1055CM Printers Service Manual

Troubleshooting

The Printer does not Power ON
1 Check that the power cord is connected correctly to the Printer and to the Power Socket. 2 Check that the Firmware DIMM is installed correctly in the correct slot (the first slot from the right) at the back of the Printer. 3 Check that the Power Switch on the BACK of the Printer is in the ON position. 4 Check 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. 1 Power 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. 1 Power 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.

HP DesignJets 1050C and 1055CM Printers Service Manual

1-5

Troubleshooting

The Printer Continuously Rejects Printheads
1 Clean the flex contacts on the Printhead and in the Carriage Assembly using the Carriage Interconnect Wiper (Refer to Chapter 3) and try again. 2 If 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
1 Check if the faulty sensor is installed correctly. 2 Check if the cable for the faulty sensor is connected correctly. 3 Replace the faulty Sensor.

The Line Sensor has Problems Detecting Media
1 Check 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. 2 Excessive ink deposits on the Platen surface can fool the sensor by reflecting the light. Clean the Platen. 3 The Line Sensor is not calibrated correctly. Perform the Line Sensor calibration Page 5-9. 4 The Line Sensor is damaged or faulty. Replace the Carriage Assembly Page 8-44.

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HP DesignJets 1050C and 1055CM Printers Service Manual

Troubleshooting

Troubleshooting Media Jams/Printhead Crashes
NOTE

If using HP Coated Media when problem occurred, please also refer to Page 1-10, Printhead Crashes/Smears on High Density Prints Using Coated Media. 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. 1 Did 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.

NOTE

When clearing a media jam, sometimes media is stuck in the paper path. To clear this, you must lift the media load handles and insert thicker media into the paper path to push out the media that is still stuck there. 2 Is 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. 3 The 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. 4 Check 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: n Check Printhead Cleaner Path. n Check Paper Path. n Check Printhead Path (followed by (1), (2) or (3)). A shutdown in each path will require different steps to resolve the

HP DesignJets 1050C and 1055CM Printers Service Manual

1-7

Troubleshooting problem as explained as follows. WARNING In each case, make sure that you power OFF the printer before attempting any procedures to resolve the problem. Printhead Cleaner Path 1 Open 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 1 Open 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. 2 If 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. 3 Replace media spindle if broken. 4 Replace 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) 1 Clean 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. 2 Replace the Scan-Axis Motor Page 8-33. Velocity Shutdown (2) 1 Open 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. 2 Check that the Encoder Strip is clean. If necessary, clean Encoder Strip using a damp cloth.

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HP DesignJets 1050C and 1055CM Printers Service Manual

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: 1 With 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. 2 If 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: n Ink Smearing on the Media. n Printhead crashes against the Media. n Cut Sheet loading problems (high probability). n Roll 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:

n n

Advise the customer to install the Media Bin cover, that was included with the Printer, to avoid this problem. If possible, advise the customer to hold the prints and prevent them from falling in to the bin.

HP DesignJets 1050C and 1055CM Printers Service Manual

1-9

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:

n n

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

n n

Check in the Front Panel if Ink Limiting is ON or OFF. If Ink Limiting is OFF, turn it ON. Never 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:

n n

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

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HP DesignJets 1050C and 1055CM Printers Service Manual

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:

n n n n

Perform 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. Some applications have color controls for the user to modify the image in order to obtain the desired colors. Printing with PostScript reduces the problem significantly. Avoid 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:

n n

Increase the Dry Time using the Front Panel (Refer to the User's Guide - Chapter 3 Working with Paper). Install a new roll of media.

HP DesignJets 1050C and 1055CM Printers Service Manual

1-11

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:

n

Perform 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:

n n

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

n

Reduce 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).

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HP DesignJets 1050C and 1055CM Printers Service Manual

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. n Print 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.
NOTE

The media is causing the problem and NOT the Printer. Do not attempt to try and replace Printer parts to solve this problem.

HP DesignJets 1050C and 1055CM Printers Service Manual

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Troubleshooting

Solving Media-Handling Problems
The Front Panel Keeps Indicating that Media Is Misaligned or Incorrectly Positioned
Roll media

n n

The roll may be loaded the wrong way. The paper should load over the roll toward you. The paper may be loaded at an angle. The right-hand edge must be parallel to the white line on the paper entry roller.

WARNING

Ensure that the paper is wrapped tightly on the roll. This is a very important step to remember because if this is not done, the media may be loaded at an angle, causing the media to be rejected.

n n
Sheet media

Perform the manual alignment procedure (Refer to the User's Guide). Check that the paper is correctly loaded onto the spindle. It must be loaded with the right-hand edge against the blue perforated line on the printer. The media may be crumpled or warped or may have irregular edges. If you are using hand-cut media, the edges may not form a rightangle or they may be rough. Do not use hand-cut media. Use only purchased sheet media. If the media you are trying to load is very slippery, hold the media with both hands, and gently push the media into the printer until it buckles upwards in the middle, this will help the printer to load it. If the overdrive is covered in dust, it will have problems picking up the sheet media during the load process. Clean the Overdrive using the Overdrive Cleaning Service Utility Page 4-37.

n n n n

n

1-14

HP DesignJets 1050C and 1055CM Printers Service Manual

Queuing & Nesting Queuing Management

O. K.

Copies

99 ... 1, 0

Queue On, Off Statistics

Width, Length

Nest Off

Move to top, Delete page

In order, Optimal 99 ... 2, 1 min

Page Format

Size Inked Area, Software etc

Oversize Over A2, Over A1 Statistics Best ARCH, ARCH A ... E1 Best JIS B, JIS B4 ... B1 Best ANSI, ANSI A ... E

ARCH

JIS

HP DesignJets 1050C and 1055CM Printers Service Manual
ANSI ISO Best ISO A, ISO A4 ... A0 Rotate TOYO, SWOP, 0 ... 270 Native Margins Normal, Extended On, Off Nest Spacing Automatic Mirroring @ PostScript Scale On, Off @ 100% ... 419% Fit to Page Manual 30...5

How to Navigate through the Front-Panel Menu

Troubleshooting

1-15

1-16
Palette

Troubleshooting

HP-GL/2 Settings

Software, Factory, Palette A, Palette B

Define palette Pen Number 0 ... 15

Palette A, Palette B

Width

0.13 mm - 12.0 mm

Factory

Pen Number 0 ... 15

Color

255 ... 1, 0

Merging Off, On

@ Ink Emulation TOYO, EuroScale SWOP, Native @ Off, On

@

@

Image Quality

HP DesignJets 1050C and 1055CM Printers Service Manual
Color Calib., Ink Limiting @

Device Setup Cutter

On, Off

Lang 7586, HP-GL/2 Terminator

Normal, Special

HP-GL/2, CALS/G4 @

PostScript, Automatic

Drying time

Automatic, None

Manual

255 ... 2, 1 min

HP DesignJets 1050C and 1055CM Printers Service Manual
Page Accuracy Optimized Maximum I/O Setup Network ID DNS Name, Appletalk, IP Address HW Address Network Card Configuration JetDirect Menu See the Setup Guide Advanced Reset Card I/O Timeout 0.5 min ... 30 min

Troubleshooting

1-17

1-18
Display contrast Up, Down Statistics RAM present, Hard disk, Code Rev @ PostScript Code Rev, PostScript Font Rev Recover printheads, Palette, Menu, Default menu, Samples Display data Palette, Menu, Calibration Off, On Samples Off, On Printhead alignment Accuracy Restore Factory Test prints HP-GL/2 Config, Service Config, Usage Report, Print Quality Recalibrate Create pattern, Measure pattern Menu mode Short, Full Demos Demos
@ PostScript Fonts Palette, Menu, Samples

Troubleshooting

Utilities

HP DesignJets 1050C and 1055CM Printers Service Manual

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: n General Configuration n Printhead Info. n Cartridge Info. n Operating Conditions. n Calibrations. n Maintenance. n IIO Configuration. How to Print the Service Configuration Print 1 Load media (Roll media or at least an A4 Sheet) into the Printer. 2 Once the message "Ready" is displayed on the front-panel, scroll to the "Printer Setup Options" icon and press the Enter key.
Ready
Ink CYAN MAGENTA YELLOW BLACK

Printer Setup Options

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

Printer setup options Pen settings ... Device setup ... Utilities ... Demos ... Image quality ...

Back


Enter

Press Enter

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

Utilities Display Contrast ... Contrast ... Recover Printheads ... Calibrations ... Test Prints ...

Back


Enter

Press Enter

HP DesignJets 1050C and 1055CM Printers Service Manual

1-19

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

Test Prints
Back

HP-GL/2 config Service config Usage report Print Quality


Enter

Press Enter

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. n General 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. n Printhead 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. n Cartridge 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. n Operating Conditions - In this area you can find the level of humidity and the temperature that the Printer is working in. n Calibrations - 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. n Maintenance - 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. n IIO Configuration - In this area you can find information on the configuration of the JetDirect Card.

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HP DesignJets 1050C and 1055CM Printers Service Manual

Troubleshooting Sample of the Service Configuration Print

HP DesignJets 1050C and 1055CM Printers Service Manual

1-21

Troubleshooting

1-22

HP DesignJets 1050C and 1055CM Printers Service Manual

System Error Codes

1 2

2

System Error Codes 2-2 0000D8 XXXXXXXX (Non-Continuable) 2-3 01002D (Non-Continuable) 2-3 010020 (Non-Continuable) 2-3 010021 (Non-Continuable) 2-4 010023 (Non-Continuable) 2-4 010040 2-5 010041 2-5 010042 2-6 010050 XXXXXXXX (Non-Continuable) 2-6 01009X (Continuable) 2-7 02xxxx (Non-Continuable) 2-7 04Cxxx 2-8 048xxx 2-8 060301 2-9 060305 0000000X 2-9 060309 2-10 06030A (Continuable) 2-10 06030B 2-11 070100 XXXXXXXX (Non-Continuable) 2-11 080001 (Non-Continuable) 2-12 09xxxx (Non-Continuable) 2-12 0A0000 2-13 0A0010 2-13 0A0020 2-14 0A0030 2-14 0A0040 2-14 0A0050 (Non-Continuable) 2-15 0A0060 (Non-Continuable) 2-15 0A0070 (Continuable) 2-16 0C0030 2-16 0C0032 (Continuable) 2-17 0C1000 2-17 0C1001 2-17 System Error Codes During Initialization 2-18

HP DesignJets 1050C and 1055CM Printers Service Manual

2-1

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: n Model and Serial Number of the printer. n Which firmware revision the printer is using (See Note below). Check firmware in Utilities / Statistics / Code rev. n The complete error number (See Note below). n The Service Configuration Print Page 1-19. n The Current configuration sheet. n Which software application the customer is using (name, version, etc.).
NOTE

When reporting the System Error Code, make sure that you supply the full Error Code (including the last 8 numbers where applicable) and the firmware version. Without this information, HP Support Personnel cannot help you.

Continuable and Non-Continuable Error Codes
Some of the Error Codes are continuable, which means you can press Enter on the front-panel and continue working with the Printer. Non-Continuable Error Codes do not allow you to continue working with the Printer, in this case power the Printer OFF and ON again and see if the System Error disappears. If the Error Code reappears, then the Printer requires an on-site visit in order to resolve the problem.
NOTE

Even though the customer can continue working with a Continuable Error Code, an on-site visit should still be planned to troubleshoot the problem.

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HP DesignJets 1050C and 1055CM Printers Service Manual

System Error Codes

System Error: Problem Description: Corrective Action:

0000D8 XXXXXXXX (Non-Continuable) External Library Error. Refer to System Error Code 070100.

System Error: Problem Description: Corrective Action:

01002D (Non-Continuable) The Main PCA cannot communicate with the Carriage. Perform the Electronic Systems Test Page 4-5.

System Error: Problem Description: Corrective Action:

010020 (Non-Continuable) Firmware DIMM Test failure. Try the following:

n n

n
WARNING

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. If the Error Code appears again, switch the Power OFF from the back of the Printer, disconnect the power cord and Replace the Firmware DIMM. Reconnect the power cord and power On the Printer and check if the Error Code has been resolved. If the System Error continues, replace the Electronics Module Page 8-25.

Only replace one component at a time and check if the error has gone before replacing another component. Using this procedure you will be able to determine exactly which component failed.

HP DesignJets 1050C and 1055CM Printers Service Manual

2-3

System Error Codes

System Error: Problem Description: Corrective Action:

010021 (Non-Continuable) Memory DRAM DIMM Test failure. Try the following: n Switch 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. n If the Error Code appears again, switch the Power OFF, disconnect the power cord and Replace the Flash DIMMs (Memory Modules). Reconnect the power cord and power On the Printer and check if the Error Code has been resolved. n If the Error Code continues, replace the Electronics Module Page 8-25. Only replace one component at a time and check if the error has gone before replacing another component. Using this procedure you will be able to determine exactly which component failed.

WARNING

System Error: Problem Description: Corrective Action:

010023 (Non-Continuable) EEROM Test failure. Try the following:

n

Clear the EEROM ( Page 4-38) and turn the Printer OFF and ON again from the back of the Printer. If after clearing the EEROM, the Error Code disappears, make sure you perform the Calibrations Backup Page 5-19.

NOTE

Make sure that you select "Electronics Module Replaced" when performing the Calibrations Backup.

n

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

2-4

HP DesignJets 1050C and 1055CM Printers Service Manual

System Error Codes

System Error: Problem Description: Corrective Action:

010040 Error in Paper-axis Encoder quadrature. Try the following:

n n n n
WARNING

Check that the Paper-Axis Motor cable is NOT broken or damaged. Check that the Paper-Axis Motor cable is correctly connected. Replace the Paper-Axis Motor Page 8-12. If the Error Code continues, replace the Electronics Module Page 8-25.

Only replace one component at a time and check if the error has gone before replacing another component. Using this procedure you will be able to determine exactly which component failed.

System Error: Problem Description: Corrective Action:

010041 Error in Scan-axis Encoder quadrature. Try the following:

n n n n
WARNING

Check that the Encoder Strip is NOT broken or damaged. Replace the Encoder Strip Page 8-34. Replace the Carriage Assembly Page 8-44. If the Error Code continues, replace the Electronics Module Page 8-25.

Only replace one component at a time and check if the error has gone before replacing another component. Using this procedure you will be able to determine exactly which component failed.

HP DesignJets 1050C and 1055CM Printers Service Manual

2-5

System Error Codes

System Error: Problem Description: Corrective Action:

010042 Error in Service Station-axis Encoder quadrature. Try the following:

n n n n
WARNING

Check that the Service Station Encoder-Cable is NOT broken or damaged. Check that the Service Station Encoder-Cable is correctly connected. Replace the Service Station Page 8-8. If the Error Code continues, replace the Electronics Module Page 8-25.

Only replace one component at a time and check if the error has gone before replacing another component. Using this procedure you will be able to determine exactly which component failed.

System Error: Problem Description: Corrective Action:

010050 XXXXXXXX (Non-Continuable) PostScript Processing Error. Power the Printer OFF and ON again to see if the System Error disappears. Try sending the print again. If the Error Code reappears after sending the print again, then report the error to the HP response Center or the nearest HP Support Office, stating the following information.

n n n n n n
NOTE

Model and Serial Number of the printer. Which firmware revision the printer is using (See Note below). Check firmware in Utilities / Statistics / Code rev. The complete error number (See Note below). The Service Configuration Print Page 1-19. The Current configuration sheet. Which software application the customer is using (name, version, etc.).

When reporting the System Error Code, make sure that you supply the full Error Code (including the last 8 numbers where applicable) and the firmware version. Without this information, HP Support Personnel cannot help you.

2-6

HP DesignJets 1050C and 1055CM Printers Service Manual

System Error Codes

System Error: Problem Description: Corrective Action:

01009X (Continuable) Error in Paper-axis Motor Encoder Try the following:

n n n n
WARNING

Check that the Paper-Axis Motor cable is NOT broken or damaged. Check that the Paper-Axis Motor cable is correctly connected. Replace the Paper-Axis Motor Page 8-12. If the Error Code continues, replace the Electronics Module Page 8-25.

Only replace one component at a time and check if the error has gone before replacing another component. Using this procedure you will be able to determine exactly which component failed.

System Error: Problem Description: Corrective Action:

02xxxx (Non-Continuable) PostScript/Firmware Error. Power the Printer OFF and ON again to see if the System Error disappears. If the Error Code reappears, then report the error to the HP response Center or the nearest HP Support Office, stating the following information.

n n n n n n
NOTE

Model and Serial Number of the printer. Which firmware revision the printer is using (See Note below). Check firmware in Utilities / Statistics / Code rev. The complete error number (See Note below). The Service Configuration Print Page 1-19. The Current configuration sheet. Which software application the customer is using (name, version, etc.).

When reporting the System Error Code, make sure that you supply the full Error Code (including the last 8 numbers where applicable) and the firmware version. Without this information, HP Support Personnel cannot help you.

HP DesignJets 1050C and 1055CM Printers Service Manual

2-7

System Error Codes

System Error: Problem Description: Corrective Action:

04Cxxx EIO Accessories (EIO Card/Hard Disk Drive) Error. Try the following:

n

n

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. 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. 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: Problem Description: Corrective Action:

048xxx The EIO card is from a third party vendor and may not be fully compliant with the IIO Protocol specification 2.0 OR the EIO Card firmware is not updated. Try the following:

n n

Check with the third party vendor. If the EIO card is not compliant with the IIO Protocol specification 2.0 then you must install a new EIO card which is compliant. Update the EIO Card firmware.

2-8

HP DesignJets 1050C and 1055CM Printers Service Manual

System Error Codes

System Error: Problem Description: Corrective Action:

060301 One of the Printheads has an Internal Electrical Problem. Try the following: n Remove all the Printheads and clean the flex contacts on the Printheads and in the Carriage Assembly (Refer to Chapter 2). n Perform the Electronic Systems Test Page 4-5. n Make sure that the Trailing Cable is connected correctly. n Replace the Trailing Cable Page 8-39. n Replace the Carriage Assembly Page 8-44. n If the error code continues, replace the Electronics Module Page 8-25. Only replace one component at a time and check if the error has gone before replacing another component. Using this procedure you will be able to determine exactly which component failed.

WARNING

System Error: Problem Description:

060305 0000000X Thermal Shutdown error (one of the Printheads has gone above the maximum Temperature). Error Data: 00000000 00000001 00000002 00000003

═ ═ ═ ═

Cyan Printhead Failed. Magenta Printhead Failed. Yellow Printhead Failed. Black Printhead Failed.

Corrective Action:

Try the following:

n n

Replace the failing Printhead. If 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.

HP DesignJets 1050C and 1055CM Printers Service Manual

2-9

System Error Codes

System Error: Problem Description: Corrective Action:

060309 Problem with setting the Voltage of the Printheads. Try the following:

n n n n n n
WARNING

Remove ALL the Printheads and clean the flex contacts on the Printheads and in the Carriage Assembly (Refer to Chapter 2). Perform the Electronic Systems Test Page 4-5. Replace ALL the Printheads. Replace the Trailing Cable Page 8-39. Replace the Carriage Assembly Page 8-44. If the Error Code continues, replace the Electronics Module Page 8-25.

Only replace one component at a time and check if the error has gone before replacing another component. Using this procedure you will be able to determine exactly which component failed.

System Error: Problem Description: Corrective Action:

06030A (Continuable) Error in finding the Mark Encoder. Try the following:

n n n n n n n
WARNING

Clean the Mark Encoder if necessary (use the Overdrive Cleaning Utility to position the Mark Encoder Page 4-37). Clean the Line Sensor (located on the Carriage Assembly). Perform the Line Sensor Calibration Page 5-9. Perform the Mark Encoder Calibration Page 5-13. Replace the Trailing Cable Page 8-39. Replace the Carriage Assembly Page 8-44. If the Error Code continues, replace the Electronics Module Page 8-25.

Only replace one component at a time and check if the error has gone before replacing another component. Using this procedure you will be able to determine exactly which component failed.

2-10

HP DesignJets 1050C and 1055CM Printers Service Manual

System Error Codes

System Error: Problem Description: Corrective Action:

06030B The Ambient Temperature measured is out of the normal range. Try the following: n Make sure that the Ambient temperature is within the allowed range (between 0 and 55 Degrees Centigrade). n Replace the Electronics Module Page 8-25.

System Error: Problem Description: Corrective Action:

070100 XXXXXXXX (Non-Continuable) Firmware Error. Power the Printer OFF and ON again to see if the System Error disappears. If the Error Code reappears, then report the error to the HP response Center or the nearest HP Support Office, stating the following information.

n n n n n n
NOTE

Model and Serial Number of the printer. Which firmware revision the printer is using (See Note below). Check firmware in Utilities / Statistics / Code rev. The complete error number (See Note below). The Service Configuration Print Page 1-19. The Current configuration sheet. Which software application the customer is using (name, version, etc.).

When reporting the System Error Code, make sure that you supply the full Error Code (including the last 8 numbers where applicable) and the firmware version. Without this information, HP Support Personnel cannot help you.

HP DesignJets 1050C and 1055CM Printers Service Manual

2-11

System Error Codes

System Error: Problem Description: Corrective Action:

080001 (Non-Continuable) PostScript Error. Refer to System Error Code 070100. 09xxxx (Non-Continuable) EIO Accessories (EIO Card/Hard Disk Drive) Error. Try the following:

System Error: Problem Description: Corrective Action:

n n

n

n n

Switch the Printer OFF and ON again and wait for the initialization. If 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. If 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. If Error Code 09Cxxx appears after initialization, then replace the Electronics Module Page 8-25. Once 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.

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HP DesignJets 1050C and 1055CM Printers Service Manual

System Error Codes

System Error: Problem Description: Corrective Action:

0A0000 The Air Pressure is below the minimum requirement. Try the following:

n n n n n
WARNING

Check all the cables of the APS and make sure they are correctly connected and are NOT damaged. Check all the tubes of the APS and Tubes System and make sure they are correctly connected and are NOT pinched or damaged. Check that the Air Tube from the APS is correctly connected to the Tubes System. Faulty APS Sensor, APS Valve or APS Pump. Replace the complete APS Page 8-20. Replace ONE Ink Cartridge at a time, checking if the error code disappears.

Only replace one component at a time and check if the error has gone before replacing another component. Using this procedure you will be able to determine exactly which component failed.

System Error: Problem Description: Corrective Action:

0A0010 Problem in Pressurizing the Air System. Try the following:

n n n n
WARNING

Replace ONE Ink Cartridge at a time, checking if the error code disappears. Check all the cables of the APS and make sure they are correctly connected and are NOT damaged. Check all the tubes of the APS and Tubes System and make sure they are correctly connected and are NOT pinched or damaged. Faulty APS Sensor, APS Valve or APS Pump. Replace the complete APS Page 8-20.

Only replace one component at a time and check if the error has gone before replacing another component. Using this procedure you will be able to determine exactly which component failed.

HP DesignJets 1050C and 1055CM Printers Service Manual

2-13

System Error Codes

System Error: Problem Description: Corrective Action:

0A0020 Error in Calibrating the APS Sensor. Try the following:

n n n

Check all the cables of the APS and make sure they are correctly connected and are NOT damaged. Check all the tubes of the APS and Tubes System and make sure they are correctly connected and are NOT pinched or damaged. Faulty APS Sensor or APS Valve. Replace the complete APS Page 8-20.

System Error: Problem Description: Corrective Action:

0A0030 Problem in Depressurizing Air System. Try the following:

n n

Check the APS for any signs of Ink. Also inspect ALL Ink Cartridges for any signs of leaking (the bottom valve of the Ink Cartridge will contain ink). If there is Ink Leakage, replace ALL Ink Cartridges, the APS ( Page 8-20) and the Tubes System ( Page 8-53).

System Error: Problem Description: Corrective Action:

0A0040 Ink Tubes Initialization Failure Due to Low Air Pressure. Try the following:

n n n n

Check all the cables of the APS and make sure they are correctly connected and are NOT damaged. Check all the tubes of the APS and Tubes System and make sure they are correctly connected and are NOT pinched or damaged. Replace ONE Ink Cartridge at a time, checking if the error code disappears. Faulty APS Sensor or APS Pump. Replace the complete APS Page 8-20.

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HP DesignJets 1050C and 1055CM Printers Service Manual

System Error Codes

System Error: Problem Description: Corrective Action:

0A0050 (Non-Continuable) The Printer has detected a leak in the Tubes System before the life of the System. Try the following:

n

n
WARNING

The leak detector could have been triggered due to condensation in the Printer. Power OFF the Printer and allow the Printer to dry for 15 minutes. Power ON the Printer and check if the error code has disappeared. If the Error Code reappears, replace the complete Tubes System (SRK) Page 8-53.

Only replace one component at a time and check if the error has gone before replacing another component. Using this procedure you will be able to determine exactly which component failed.

System Error: Problem Description: Corrective Action:

0A0060 (Non-Continuable) The Printer has detected a leak in the Tubes System after the life of the System. Try the following:

n

n
WARNING

The leak detector could have been triggered due to condensation in the Printer. Power OFF the Printer and allow the Printer to dry for 15 minutes. Power ON the Printer and check if the error code has disappeared. If the error code reappears, replace the complete Tubes System (SRK) Page 8-53.

Only replace one component at a time and check if the error has gone before replacing another component. Using this procedure you will be able to determine exactly which component failed.

HP DesignJets 1050C and 1055CM Printers Service Manual

2-15

System Error Codes

System Error: Problem Description: Corrective Action:

0A0070 (Continuable) The Backup EEROM contents stored in the Tubes System are not consistent with the ones required by the firmware. Try the following:

n
NOTE

Perform the Calibrations Backup Page 5-19.

Make sure that you select "Tubes Replaced" when performing the Calibrations Backup.

System Error: Problem Description: Corrective Action:

0C0030 Bad Drop Detector. Try the following:

n n n n n
WARNING

Check that the Drop Detector Cable is NOT broken or damaged. Check that the Drop Detector cable is correctly connected to the Service Station Cable. Remove the Drop Detector and make sure that there are no obstacles inside which are blocking the sensor. Replace the Drop Detector Assembly Page 8-10. If the Error Code continues, replace the Electronics Module Page 8-25.

Only replace one component at a time and check if the error has gone before replacing another component. Using this procedure you will be able to determine exactly which component failed.

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HP DesignJets 1050C and 1055CM Printers Service Manual

System Error Codes

System Error: Problem Description: Corrective Action:

0C0032 (Continuable) Drop Detector not Calibrated for all Printheads. Try the following:

n n n
WARNING

Perform the Service Station Calibration Page 5-11. Replace the Drop Detector Assembly Page 8-10. If the Error Code continues, replace the Electronics Module Page 8-25.

Only replace one component at a time and check if the error has gone before replacing another component. Using this procedure you will be able to determine exactly which component failed.

System Error: Problem Description: Corrective Action:

0C1000 Primer not Calibrated. Try the following:

n n n

Perform the Service Station Calibration Page 5-11. Make sure that the Primer Arm is not damaged. If the Primer Arm is damaged, replace the Service Station Page 8-8. Replace the Electronics Module Page 8-25.

System Error: Problem Description: Corrective Action:

0C1001 Primer Shutdown Error. Try the following:

n n n
WARNING

Check that the Primer Stepper-Motor Cable is NOT broken or damaged and that the Primer arm moves freely from side to side. Replace the Service Station Page 8-8. If the Error Code continues, replace the Electronics Module Page 8-25.

Only replace one component at a time and check if the error has gone before replacing another component. Using this procedure you will be able to determine exactly which component failed.

HP DesignJets 1050C and 1055CM Printers Service Manual

2-17

System Error Codes

System Error Codes During Initialization
The following System Error Codes will only appear during the Initialization process when you power ON the Printer.
System Error: Problem Description: Corrective Action:

0B0000 Bad Ambient Temperature measured. Try the following: n Make sure that the Ambient temperature is within the allowed range (between 0 and 55 Degrees Centigrade). n Replace the Electronics Module Page 8-25.

System Error: Problem Description: Corrective Action:

0B0001 Bad Humidity read. Replace the Electronics Module Page 8-25.

System Error: Problem Description: Corrective Action:

0B0002 Bad IDS pressure read. Try the following:

n n n n n
WARNING

Check that the cable from the Ink Supply Station (ISS) PCA to the Ink Supply Station is correctly connected. Check that the Air Pressurization System Sensor Cable is correctly connected and is NOT damaged. Check all the tubes of the APS and make sure they are NOT pinched or damaged. Faulty APS Sensor. Replace the complete APS Page 8-20. If the error code continues, replace the Electronics Module Page 8-25.

Only replace one component at a time and check if the error has gone before replacing another component. Using this procedure you will be able to determine exactly which component failed.

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HP DesignJets 1050C and 1055CM Printers Service Manual

System Error Codes

System Error: Problem Description: Corrective Action:

0B0003 ADC0 Internal channels check Failure. Replace the Electronics Module Page 8-25.

System Error: Problem Description: Corrective Action:

0B0004 Unable to detect Pump. Try the following:

n n n
WARNING

Check that the cable from the Ink Supply Station (ISS) PCA to the Ink Supply Station is correctly connected. Faulty APS Pump. Replace the complete APS Page 8-20. If the error code continues, replace the Electronics Module Page 8-25.

Only replace one component at a time and check if the error has gone before replacing another component. Using this procedure you will be able to determine exactly which component failed.

System Error: Problem Description: Corrective Action:

0B0005 Unable to detect Valve. Try the following:

n n n
WARNING

Check that the cable from the Ink Supply Station (ISS) PCA to the Ink Supply Station is correctly connected. Faulty APS Valve. Replace the complete APS Page 8-20. If the error code continues, replace the Electronics Module Page 8-25.

Only replace one component at a time and check if the error has gone before replacing another component. Using this procedure you will be able to determine exactly which component failed.

HP DesignJets 1050C and 1055CM Printers Service Manual

2-19

System Error Codes

System Error: Problem Description: Corrective Action:

0B0006 The Trailing Cable has been incorrectly connected OR the fuse in the Electronics Module has been burned. Turn the