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Service Manual
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HP
DesignJets 500 and 800 Series
Large-Format Printers
Service Manual
For HP Internal Use Only ©Copyright Hewlett-Packard Company 2000 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, August 2000
Warranty
WARNING
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.
The information contained in this The procedures described in this document is subject to change manual are to be performed by without notice. HP-qualified service personnel only. 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. 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.
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
DesignJets 500 and 800 Series
Large-Format Printers
Service Manual
Using this Manual
Purpose
This Service Manual contains information necessary to test, calibrate and service: n HP DesignJet 500 Printer - 24" Model (P/N C7769B) n HP DesignJet 500 Printer - 42" Model (P/N C7770B) n HP DesignJet 500PS Printer - 24" Model (P/N C7769C) n HP DesignJet 500PS Printer - 42" Model (P/N C7770C) n HP DesignJet 800 Printer - 24" Model (P/N C7779B) n HP DesignJet 800 Printer - 42" Model (P/N C7780B) n HP DesignJet 800PS Printer - 24" Model (P/N C7779C) n HP DesignJet 800PS Printer - 42" Model (P/N C7780C) 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 500 and 800 Series Printers Service Manual
Table of Contents
Table of Contents
Troubleshooting 1-1
1
Introduction 1-2 Troubleshooting System Error Codes 1-2 Solving Print Quality Problems 1-3 Cover Sensors are not Working 1-3 The Line Sensor has Problems Detecting Media 1-3 Troubleshooting Paper-Axis Shutdowns 1-4 Problems with the Vacuum Fan 1-5 Vacuum suction much lower at high altitudes 1-5 HP-GL/2 color differences in different HP DesignJet Printers 1-6 Banding at variable extreme environmental conditions 1-6 The Priming Procedure Fails 1-7 Using the Power Switch LED to Troubleshoot 1-10 Using the Boot-Up Sequence to Troubleshoot 1-12 Using the Formatter/Accessory Card LEDs to Troubleshoot 1-14
System Error Codes 2-1
Introduction 2-2 Continuable and Non-Continuable Error Codes 2-2 System Error Codes - Explanation 2-2 Error Log Utility 2-5 Accessing the Error Log Utility 2-5
Ink Supplies Troubleshooting 3-1
What are the Ink Supplies? 3-2 Ink Cartridges 3-2 Printheads 3-3 Identifying the Components 3-3 General Information About the Ink Supplies 3-4 Some General Precautions When Handling the Ink Supplies 3-5 When Should You Replace the Ink Cartridges? 3-6 When Should You Replace the Printheads? 3-7 Obtaining Ink Cartridge Information 3-9
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Table of Contents
Obtaining Printhead Information 3-10 Ink Cartridge Status Messages 3-12 Ink Cartridge Status While Replacing 3-12 Printhead Status Messages 3-13 Printhead History Utility 3-14 Accessing the Printhead History Utility 3-14 Is the Printer Causing Repetitive Printhead Problems? 3-16 Is the User Replacing the Printheads too Early? 3-18 Troubleshooting Repetitive Ink Cartridge Messages 3-20 Troubleshooting Repetitive Printhead Error Messages 3-21 Printhead Error Codes 3-22 Summary of Solving Ink Supplies Problems 3-23
Service Tests and Utilities 4-1
Introduction 4-2 Phone Support 4-2 Diagnostics - Self Test 4-2 Service Tests (Diagnostics) 4-3 Entering the Service Tests Menu 4-4 Ink Supply Station 4-6 Carriage Movement 4-8 Paper Advance Test 4-10 Service Utilities 4-13 Entering the Service Utilities Menu 4-14 EEROM Setup 4-16 Turn Drive Roller 4-21 Unlock Carriage 4-22 Prime Tubes 4-23 Change Cutter 4-24 Change Ink Tubes 4-25 Printer Information 4-26
Service Calibrations 5-1
Entering the Service Calibrations Menu 5-3 Printhead Alignment (includes PPS Calibration) 5-5 Color Calibration 5-7 Advance Calibration 5-9 Factory Advance Calibration 5-11
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HP DesignJets 500 and 800 Series Printers Service Manual
Table of Contents
Print Quality 6-1
Print Quality 6-2 Print Quality Troubleshooting Checklist 6-2 How to Use the Troubleshooting Procedure 6-4 What is the Troubleshooting Procedure? 6-4 Considerations for Using the Troubleshooting Procedure. 6-4 Performing the Troubleshooting Procedure 6-4 Troubleshooting Procedure Flowchart 6-7 No Printing Defects Found Using the Troubleshooting Procedure 6-8 Solving Color Accuracy problems 6-9 Color Consistency problems 6-9 Long Term Color Bleeding (Glossy Papers) 6-9 Media 6-10 There are Smears or Scratching on the Printed Media 6-10
Parts and Diagrams 7-1
Printer Support 7-2 Right Hand Cover 7-4 Left Hand Cover 7-6 Top Cover and Deflectors 7-8 Rollfeed Module 7-10 Back Platen Assembly 7-12 Electronics Module 7-14 Power Supply 7-16 Cutter Assemblies 7-18 Ink Delivery System 7-20 Service Station and Spittoon 7-22 Service Station Holder 7-24 Pinch-Wheel Assemblies 7-26 Scan-Axis Motor 7-28 Drive Roller Encoder Sensor 7-30 Print Platen Assembly 7-32 Carriage Assembly 7-34 Vacuum Fan 7-36 Interconnect Cable 7-38 Paper-Axis Motor 7-40 Drive Roller 7-42 Miscellaneous Items 7-44
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Table of Contents
Removal and Installation 8-1
Introduction 8-2 Safety Precautions 8-2 Electrostatic Discharge (ESD) Precautions 8-3 Required Tools 8-3 Screw Types 8-4 Left Hand Cover 8-5 Right Hand Cover 8-7 Front Panel 8-9 Window and Top Cover 8-10 Media Deflectors 8-11 Left End Roll-Feed 8-13 Right End Roll-Feed 8-15 Back Platen 8-17 Media Sensor 8-19 Formatter 8-20 LAN Card 8-21 Spittoon 8-23 Electronics Module 8-24 Power Supply 8-27 Scan-Axis Motor Assembly 8-29 Cutter Assembly 8-32 Left Encoder Holder 8-33 Cutter Bushing 8-35 Cutter Guide Bracket 8-36 Drive Roller Encoder Sensor 8-38 Trailing Cable 8-40 Ink Supply Station 8-48 Interconnect PCA 8-50 Service Station and Aerosol Fan 8-52 Cutter Guide 8-55 Print Platen 8-56 Service Station Holder 8-57 Interconnect Cable 8-59 Ink Supply Tubes 8-60 Vacuum Fan 8-64 Pinch-Arm 8-66 Pinch-Arm Mechanism 8-67 Pinch-Arm Lever 8-69
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HP DesignJets 500 and 800 Series Printers Service Manual
Table of Contents
Pinch-Arm Sensor 8-71 Fork Idler, Tensioner and Idler Pulley 8-74 Encoder Strip 8-76 Carriage Assembly (Including Belt) 8-78 Paper-Axis Motor 8-84 Drive Roller 8-86 Gear Assemblies 8-92
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 Drive Roller/Print Platen 9-3 Scheduled Maintenance 9-3 Level of Printer Usage 9-3 Scan-Axis Maintenance 9-4
Functional Overview 10-1
Introduction 10-2 SKU Overview 10-2 Electrical System 10-3 Introduction 10-3 Hardware Description 10-3 Power Supply Unit (PSU) 10-5 Front Panel 10-6 Ink Delivery System (IDS) 10-7 Ink Supply Station (ISS) 10-7 Tubes Assembly 10-9 Service Station 10-10
Glossary Index
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Table of Contents
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HP DesignJets 500 and 800 Series Printers Service Manual
Troubleshooting
1
Introduction 1-2 Troubleshooting System Error Codes 1-2 Performing a Service Test on a Failed Assembly 1-2 Performing the Necessary Service Calibrations 1-2 Solving Print Quality Problems 1-3 The Printer does not Power ON 1-3 Cover Sensors are not Working 1-3 The Line Sensor has Problems Detecting Media 1-3 Troubleshooting Paper-Axis Shutdowns 1-4 Problems with the Vacuum Fan 1-5 Vacuum suction much lower at high altitudes 1-5 HP-GL/2 color differences in different HP DesignJet Printers 1-6 Banding at variable extreme environmental conditions 1-6 The Priming Procedure Fails 1-7 Using the Power Switch LED to Troubleshoot 1-10 Using the Boot-Up Sequence to Troubleshoot 1-12
HP DesignJets 500 and 800 Series 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.
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?
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.
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HP DesignJets 500 and 800 Series Printers Service Manual
Troubleshooting
Solving Print Quality Problems
The Printer contains an internal Troubleshooting procedure which helps you to diagnose and resolve the possible source of any Image Quality or Line Quality defects. If Print Quality is poor before the minimum life expectancy of the Printhead has been reached, the Troubleshooting procedure should be performed which will determine whether the Printhead needs replacing or not after performing various levels of recovery actions. For information on solving Print Quality problems see Chapter 6 Print Quality.
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 Front-Panel Cable is correctly connected to the Interconnect PCA. Also make sure that the Front-Panel cable is not damaged. 3 Check that the Interconnect Cable is properly connected at the both ends of the Printer.
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 (or the assembly that contains the 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 Print Platen surface can fool the sensor by reflecting the light. Clean the Print Platen. 3 The Line Sensor is damaged or faulty. Replace the Carriage Assembly Page 8-78.
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Troubleshooting
Troubleshooting Paper-Axis Shutdowns
A Paper-Axis shutdown can happen when the Printer detects that the Drive Roller is not moving but at the same time power is being supplied to the Paper-Axis Motor (which should be turning the Drive Roller). The reasons for the Paper-Axis shutdown, and their solutions, are explained as follows: 1 The Paper-Axis Motor does not respond to the electrical simulation. n It is possible to determine whether the Paper-Axis is faulty by performing the Paper Advance Test (Refer to Page 4-10). The Printer will move the Motor backwards and forwards and measure directly from the Motor Encoder whether the Paper-Axis Motor responded to the force. If the Paper-Axis Motor did not respond, the solution would be to replace the Paper-Axis Motor Page 8-84. 2 The Transmission Gears, which transmit the movement to the Drive Roller, are not turning. This problem could be caused either by blockage of the gears (caused by an obstacle) or by one of the gears being damaged. To solve the problem, try the following: n Remove the Back Platen Page 8-67 and check if there are any obstacles blocking the Gears. Remove the obstacles if necessary. n Remove the Back Platen Page 8-67 and check if the Transmission Gears are damaged. If the Gears are damaged, replace the Gear Assemblies Page 8-92. 3 The Drive Roller cannot move because of an obstacle or because it is damaged. To solve the problem, try the following: n Remove the Back Platen Page 8-67 and check if there are any obstacles blocking the Drive Roller. Remove the obstacles if necessary. n Remove the Back Platen Page 8-67 and check if the Drive Roller is damaged. If the Drive Roller is damaged, replace the Drive Roller Page 8-86. 4 The Drive Roller Encoder Sensor is faulty n It is possible to determine whether the Encoder Sensor is faulty by loading a sheet of paper from the front of the Printer. If the Drive Roller is working, the sheet will be loaded correctly, and the Printer will detect that media has been loaded (using the Media Sensor). Therefore the problem must be the Encoder Sensor and the solution would be to replace the Encoder Sensor Page 8-38.
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HP DesignJets 500 and 800 Series 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 8-64. 2 If the Vacuum Fan held the sheet in place, but couldn't correctly load it, then there could be a problem with the Drive Roller. In this case, replace the Drive Roller Page 8-86.
Vacuum suction much lower at high altitudes
Sometimes, at high altitudes, 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). The solution to this would be to change the Vacuum force by changing the Altitude setting. This can be done via the front panel Set-up Menu / Altitude.
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Troubleshooting
HP-GL/2 color differences in different HP DesignJet Printers
Color differences between one image printed on the HP DesignJet 500/800 Series and the rest of the DesignJet platforms are due to the different chemistry of the 500/800 series inks compared with the rest of the inks for other printers. This color variability among different HP DesignJet Series Printers has always been present. To solve the problem, try the following:
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. n Some applications have color controls for the user to modify the image in order to obtain the desired colors. n Printing with PostScript reduces the problem significantly. n 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).
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).
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HP DesignJets 500 and 800 Series Printers Service Manual
Troubleshooting
The Priming Procedure Fails
When the customer first receives the Printer, it is supplied with a set of four Start-up Printheads pre-installed in the Printhead Carriage. These Start-up Printheads are used for the priming of the tubes in the Ink Delivery System. When the Printer is powered ON for the first time, the Printer will automatically perform the priming process. Without the priming process, the customer will NOT be able to use the Printer. The initial startup assumes that the Start-up Printheads are installed, but the Printer cannot detect them because the Printer can only detect normal Printheads. If normal Printheads are installed during the initial startup, the Printer will request the User to remove them and check if they really have been removed. It will then request the User to install the Start-up Printheads. Also the Printer will request the User to install the Ink Cartridges if they have not been installed already. If the Ink Cartridges contain less than 20cc of ink (the Ink Cartridges are encoded with the quantity of ink remaining) they will be rejected. Normally with a new Printer this should not be a problem since the Printer comes with Ink Cartridges that are full, but there maybe cases when the Ink Supply Tubes need to be replaced, in which case half empty Ink Cartridges may be used. Once the Printer assumes that the Start-up Printheads and Ink Cartridges with enough ink are installed, the priming process will begin. If the priming process is completed successfully, the Printer will directly proceed to the Printhead replacement procedure in order to replace the used Start-up Printheads with normal Printheads. Once the priming process has started, it can fail due to 2 different problems: n The Ink Supply Tubes were not completely empty - This is the most common cause especially if the Printer has been powered ON and OFF several times with the Ink Cartridges installed since the initialization process performs at least one pumping cycle. n The Printer detects that one or more of the tubes cannot be detected as filled with ink - The most likely cause for this problem is Ink Cartridges with a faulty valve. Even if the priming process fails, the Printer will try to verify whether the priming process has been completed by moving the Carriage to the access position and you will see the following
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Troubleshooting message on the Front Panel:
Unable to prepare ink system. Open window to check SETUP printheads
Open the Window and you will see the following message on the Front Panel:
Menu 1. Lift printhead cover 2. Check if there is ink inside printhead windows 3. Press ENTER to continue Back Enter
Check for ink
Open the Carriage Cover and check if there is ink inside the Start-up Printheads. On the Front Panel you will see the following question and you will need to select the answer depending on whether the Start-up Printheads were filled with ink or not:
Menu Are all printhead windows filled with ink? ALL with some ink NOT all with ink Back Enter
If there is ink in all of the Start-up printheads, the Printer considers that the priming procedure has been completed successfully and will proceed to the Printhead replacement process. If you select NOT all with ink the Printer will react differently depending on the source of the problem:
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HP DesignJets 500 and 800 Series Printers Service Manual
Troubleshooting
NOTE
If you need to reseat the Start-up Printheads, make sure you reinsert them in the same color slot in the Carriage.
n The Printer will request you to reseat the Start-up Printheads (or
in the case of missing Start-up Printheads you should install them or order new ones) and then retry the priming process (if the priming process fails 3 times because of the same problem, it will display a System Error). In this situation, the problem could be the following: 1 The Start-up Printheads were not installed correctly or they are missing (one or all of them). 2 The Start-up Printheads do not work properly and do not allow air to flow (one or all of them). 3 The Ink Supply Station fails to pressurize the Ink Cartridges. To check this, perform the Ink Supply Station test Page 4-6. 4 The Ink Supply Tubes are blocked, preventing the ink from flowing correctly.
n If a System Error is displayed, try the following:
1 The Ink Cartridge valve is broken so the Ink Cartridge should be replaced. 2 The Start-up Printhead is not working properly and allows ink to flow outside. 3 The Ink Supply Tube is leaking.
NOTE
The last 2 cases will be more obvious because there will be a lot of ink in the Printer (around 20 cc of ink). Remove the Ink Cartridges and release the Tubes Bracket from the Ink Supply Station and check if there is ink in this area. For more information on this problem, refer to System Error 93:10 on Page 2-19.
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Troubleshooting
Using the Power Switch LED to Troubleshoot
In certain circumstances the LED located in the power switch (located on the left hand side of the Printer) can help to troubleshoot the Printer. The LED can be OFF, ON or flashing and using different combinations can indicate different problems.
NOTE
You should only use the LED to troubleshoot when the Printer does not Power up completely. The LED may flash in other circumstances which are completely normal and this does not mean that there is a problem with the Printer.
LED OFF
LED ON
LED is OFF - This indicates that the Power Supply Unit is completely dead. Try the following: 1 Check that power cord is connected correctly to the Printer and to the Power Socket. Also make sure that you firmly press the Power Switch to the ON position. 2 Replace the Power Supply Unit Page 8-27. LED is ON (all the time) - This indicates that the Main PCA is completely dead. Replace the Electronics Module Page 8-24. LED is Flashing continuously - A problem has been detected with the previous firmware upgrade. Try resending the firmware upgrade file. LED Flashes twice every few seconds - The Printer cannot detect
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HP DesignJets 500 and 800 Series Printers Service Manual
Troubleshooting the Interconnect Cable. Try the following: 1 Check that the Interconnect Cable is connected correctly to the Electronics Module and to the Interconnect PCA. 2 If the Interconnect cable is connected correctly and the LED continues to flash twice then replace the Interconnect Cable Page 8-59. LED Flashes 3 times every few seconds - The Printer cannot detect the Front Panel. Try the following: 1 Check that the Front Panel is connected correctly to the Interconnect PCA. 2 Check that the Interconnect Cable is properly connected at the both ends of the Printer. 3 If the Front Panel is connected correctly and the LED continues to flash 3 times then replace the Front Panel Page 8-9. 4 Replace the Interconnect Cable Page 8-59. 5 Replace the Electronics Module Page 8-24. LED Flashes 4 times every few seconds - This indicates that the Main PCA has failed. Replace the Electronics Module Page 8-24. LED Flashes 5 times every few seconds - This indicates that the Main PCA has failed. Replace the Electronics Module Page 8-24.
HP DesignJets 500 and 800 Series Printers Service Manual
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Troubleshooting
Using the Boot-Up Sequence to Troubleshoot
When you Power On the Printer, the Printer performs the Boot-Up sequence which initializes the major components of the Printer. If for some reason the Boot-Up sequence fails because a component has failed to initialize, the following explanations will help you to locate the failing component:
During the first phase of the Boot-up sequence (all the squares turn grey) the Printer is initializing the Operating System. If for some reason this sequence fails, try the following: 1 Switch the Printer Off and wait a few minutes. Switch the Printer On again and check if the initialization sequence is successful. 2 If the initialization sequence fails again, replace the Electronics Module Page 8-24. During the second phase of the Boot-up sequence (all the squares turn black) the Printer is initializing various components (too numerous to mention). In normal circumstances, if a component fails during this sequence a System Error will appear and you should refer to Chapter 2 - System Error Codes. The following information explains what is being initialized as each square turns black: Initializing various components of the Main PCA. Initializing various components of the Main PCA. Initializing a portion of the Firmware. Initializing various components of the Main PCA.
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HP DesignJets 500 and 800 Series Printers Service Manual
Troubleshooting Initializing various components of the Main PCA. Initializing a portion of the Firmware. Initializing the I/O. Initializing the User Interface (Front Panel menus). Initializing a portion of the Firmware. Initializing the Formatter. Initializing the communication between Main PCA and Formatter. End of initialization sequence.
Entering Service Menu at Power Up - Only for Onsite Repair If the Printer fails to initialize completely because of a System Error and you need to use the Service Menu (Service Tests and Utilities), the Printer can be powered up in Service Mode by pressing the Up and Enter keys while switching the Printer ON. This will give you access to some of the Service Tests and Utilities without having to complete the System Initialization (if you perform some of the tests, they will need to initialize the relevant part of the System).
HP DesignJets 500 and 800 Series Printers Service Manual
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Troubleshooting
Using the Formatter/Accessory Card LEDs to Troubleshoot
In certain circumstances the LEDs located in the Formatter or HPGL/2 Accessory Card can help to highlight certain failures. There are 3 LEDs, Red, Yellow and Green and using different combinations can indicate different problems.
LED's on the HP-GL/2 Accessory Card
The LED's on the Formatter can be seen without having to remove the Left Hand Cover.
LED's on the Formatter
n The yellow LED (normally flashing) indicates that the Formatter/
Accessory Card is alive. If it stops flashing, it means that the Formatter/Accessory Card has failed and should be replaced. n The green LED indicates that there is power being supplied to the
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HP DesignJets 500 and 800 Series Printers Service Manual
Troubleshooting Formatter/Accessory Card. If the green LED is NOT lit and the LED in the Power Switch is ON, then it could mean that the Formatter/Accessory Card is badly connected or that the Printer if switched OFF. If after reseating the Formatter/Accessory Card, the problem persists, try the following: 1 Switch the Printer OFF and remove the Formatter/Accessory Card BUT leaving the LAN Card installed (if available). Switch the Printer ON. If the Printer powers up correctly and the LAN Card works properly, then try step 2. If the LAN Card doesn't work, then try step 3. 2 Switch the Printer OFF and remove the LAN Card from the current slot and install the Formatter/Accessory Card in the same slot (that was previously used by the LAN Card). Switch the Printer ON and check if the green LED in the Formatter/Accessory Card is lit. If the green LED is NOT lit, it means that the Formatter/Accessory Card is faulty and should be replaced. If the green LED is lit, then switch the Printer OFF and install the LAN Card in the vacant slot. Switch ON the Printer and check if the LAN Card works properly. If the LAN Card does NOT work, then there is a problem with the Electronics Module and should be replaced Page 8-24. 3 Switch the Printer OFF and remove the LAN Card. Switch ON the Printer and check if it initializes completely. If it initializes correctly without any problems, then the problem could be with the Electronics Module and should be replaced Page 8-24. 4 If the Printer does not even start to power up (i.e. nothing seen on the Front Panel and the LED in the Power Switch is NOT flashing) without the LAN Card nor the Formatter/Accessory Card, but the power switch LED is ON (all the time) the problem could be with the Electronics Module or the Power Supply Unit. n The red LED will flash a few times when the Printer is started up but if it stays lit (all the time) or flashes continuously, then this indicates that the Formatter/Accessory Card is faulty and should be replaced.
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Troubleshooting
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HP DesignJets 500 and 800 Series Printers Service Manual
System Error Codes
1 2
Introduction 2-2 Continuable and Non-Continuable Error Codes 2-2 System Error Codes - Explanation 2-2 Accessing the Error Log Utility 2-5 01:10 2-7 01:11 2-7 01:12 2-7 01:13 2-8 02:10 2-8 02:13 2-8 03:10 2-9 04:11 2-9 05:10 Warning (Only applicable to HP DesignJet 800 Series) 2-9 05:11 2-10 08:11 2-10 11:11 2-10 11:13 2-10 12:11 2-10 21:10 2-11 21:11 2-11 22:10 2-11 41:10 2-11 41:13 2-12 42:10 2-12 43:10 2-12 43:11 2-12 56:10 2-12 56:13 2-13 61:04 2-13 61:05 2-14 64:04 2-14 71:04 2-15 71:06 2-15 72:04 2-16 73:04 2-16 79:04 2-17 81:01 2-17 81:11 2-17 85:10 2-18 86:01 2-18 86:11 2-18 86:13 2-19 87:13 2-19 93:10 2-19
HP DesignJets 500 and 800 Series Printers Service Manual
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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.
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.
System Error Codes - Explanation
System Error Codes consist of 4 digits which explain which component/system is failing and what action should be taken to resolve the problem. The following table explains the first 2 digits of the System Error Code: Code 01 02 03 04 05 06 07 08 11 Component/System Main PCA/Electronics Module Carriage/Carriage PCA Power Supply Unit Network Card Formatter Hard Disk Drive Interconnect PCA Front Panel Trailing Cable
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HP DesignJets 500 and 800 Series Printers Service Manual
System Error Codes
Code 12 17 21 22 23 24 25 31 32 33 34 41 42 43 44 51 52 53 54 55 56 57 58 59 61 62 63 64 71 72 73
Component/System Carriage Flex Circuit Interconnect Cable Service Station Ink Supply Station Pressure System (APS) Ink Delivery System Spittoon Cutter Take-up Reel Sheet Feeder Dryer/Blower Paper-Axis Motor Scan-Axis Motor Vacuum Fan Aerosol fan Window Sensor Drop Detector Media Sensor Pinch-Arm Sensor Line Sensor Drive Roller Encoder Sensor Ink Leak Detector Color Sensor Media Type Sensor Language Interpreting Input/Output through Parallel Port Input/Output through Network Card Input/Output through USB Port Memory Management Generic Firmware Servo
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System Error Codes
Code 81 82 83 84 85 86 87 91 92 93
Component/System Media Advance Media Cut Single-Sheet Feeding Roll Feeding Media-Axis Encoder Reading Carriage Movement Scan-Axis Encoder Reading Printhead Firing Servicing Ink Pumping
The following table explains the last 2 digits of the System Error Code: Code 01 02 03 04 05 06 07 09 10 11 12 13 14 15 16 19 Replace Possible for Calibrate/Adjust (using Automatic Process) customer to perform Power OFF action Upgrade System Firmware Upgrade Driver Add Accessory Wrong Part Installed Replace Reseat/Reconnect/Clean/Adjust (manually) Calibrate/Adjust (using Automatic Process) Power OFF Upgrade System Firmware Upgrade Driver Add Accessory Wrong Part Installed On-Site visit required Reseat/Reconnect/Clean/Adjust (manually) Recovery Action Response
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System Error Codes
Error Log Utility
The Error Log utility contains a record of the last 10 system error codes the Printer has experienced. The purpose of this information is to: n Determine whether the Printer is experiencing repetitive failures. n Determine whether the previous problems are causing the current failure in the printer. n Determine whether there are additional symptoms to the current system error code. The information that is stored for each error code is: n The reported System error code. n The code line in the Firmware where the error was triggered. n The date when the error code was triggered.
Accessing the Error Log Utility
1 Press the or key until the front panel displays the Setup Menu and then press Enter.
Set-up menu Menu Back Press ENTER for Set-up menu Enter
2 Press the or key until the front panel highlights Log. Press the
Enter key.
Set-up menu Expansion cards I/O set-up front panel Altitude = 0-1000 m. Log Menu Back Enter
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System Error Codes 3 Press the or key until the front panel highlights Errors. Press the Enter key.
Log Menu Back Printheads Errors Enter
4 Press the or key until the front panel highlights the error code that you want to see information on. Press the Enter key.
Error log Select for more info: 1 Error 21:10 2 Error 01:11 3 Error 21:11 4 Error 43:10 Menu Back Enter
5 The front panel displays information on the selected item.
Error log
Error code: 21:10 linefeed.c, 217 Date: 20-Sep-01
NOTE
To view information on another Error Code, press BACK and the front panel will return to the previous screen
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HP DesignJets 500 and 800 Series Printers Service Manual
System Error Codes
System Error: Problem Description:
01:10 Electronics Module failure. The possible cause could be: 1. The Electronics Module is of the wrong type (a 16 MB Electronics Module will not work in a 24" Model). 2. Reading, writing or initializing the EEROM failed. 3. One of the ASIC's was not found within the Serial Bus that connects the Electronics Module to the Carriage Assembly. 4. One of the ASIC's did not respond to the Serial Bus that connects the Electronics Module to the Carriage Assembly. 5. The Electronics Module is requesting a move to the Service Station while the previous move is still being completed. 6. The Electronics Module Cooling Fan has reached its current limit.
Corrective Action:
Replace the Electronics Module Page 8-24.
System Error: Problem Description: Corrective Action:
01:11 The Electronics Module Cooling Fan badly connected. Reconnect the Cooling Fan (located on top of the Electronics Module). If the Cooling Fan continues to fail, check that the connector pins in the Electronics Module are NOT bent.
System Error: Problem Description: Corrective Action:
01:12 The EEROM is not configured correctly (the product number may be missing). Configure the EEROM correctly using the EEROM setup utility Page 4-16.
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System Error Codes
System Error: Problem Description:
01:13 Electronics Module failure. The possible cause could be: 1. One of the ASIC's in the Electronics Module is reporting that it is too hot. 2. The interruptions from the Scan-Axis servo or from the PaperAxis servo are not coming as regularly as they are expected or are coming too late.
Corrective Action:
Try the following: n Switch the Printer Off and wait a few minutes. Switch the Printer On again and check if the Error Code has disappeared. n If the Error Code continues, replace the Electronics Module Page 8-24. 02:10 Carriage failure. The possible cause could be: 1. The Carriage PCA is not compatible with the rest of the Printer. 2. The Carriage ASIC has problems initializing. 3. The +2.5V reference voltage generated in the Carriage PCA is out of range. 4. One of the Carriage ASIC's cannot be found within the Serial Bus that connects the Electronics Module to the Carriage. 5. One of the Carriage ASIC's did not respond to the Serial Bus that connects the Electronics Module to the Carriage Assembly.
System Error: Problem Description:
Corrective Action:
Replace the Carriage Assembly Page 8-78. 02:13 Carriage failure. The possible cause could be: 1. One of the ASIC's in the Carriage is reporting that it is too hot. Try the following: n Switch the Printer Off and wait a few minutes. Switch the Printer On again and check if the Error Code has disappeared. n If the Error Code continues, replace the Carriage Assembly Page 8-78.
System Error: Problem Description: Corrective Action:
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HP DesignJets 500 and 800 Series Printers Service Manual
System Error Codes
System Error: Problem Description: Corrective Action:
03:10 Power Supply failure. Replace the Power Supply Unit Page 8-27. 04:11 LAN Card not detected. Power OFF the Printer and reconnect the LAN Card. 05:09 Error (Only applicable to HP DesignJet 500 Series) Formatter installed instead of HP-GL/2 Accessory Card. Power OFF the Printer and remove the Formatter and install the HPGL/2 Accessory Card Page 8-20. NOTE: If this Error Code appears on a DesignJet 800 Series Printer, then the model number configured in the Printer is incorrect (the Printer thinks it's a DesignJet 500 Series Printer). In this case reconfigure the model number Page 4-16.
System Error: Problem Description: Corrective Action:
System Error: Problem Description: Corrective Action:
System Error: Problem Description: Corrective Action:
05:10 Warning (Only applicable to HP DesignJet 800 Series) Formatter not detected. Power OFF the Printer and reseat the Formatter. 05:10 Error (Only applicable to HP DesignJet 800 Series) Formatter failure. Power OFF the Printer and replace the Formatter Page 8-20. 05:10 Error (Only applicable to HP DesignJet 500 Series) HP-GL/2 Accessory Card failure. Power OFF the Printer and replace the HP-GL/2 Accessory Card Page 8-20.
System Error: Problem Description: Corrective Action:
System Error: Problem Description: Corrective Action:
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System Error Codes
System Error: Problem Description: Corrective Action:
05:11 Formatter not detected. Power OFF the Printer and reconnect the Formatter. 08:11 Front Panel cannot be detected. Reconnect the Front Panel. 11:11 Trailing Cable badly connected. Reconnect the Trailing Cable correctly. 11:13 Problem with setting the voltage of the Printheads. Try the following: n Check that the Trailing Cable is connected correctly at both ends. n Replace the Trailing Cable Page 8-40. n Replace the Carriage Assembly Page 8-78. 12:11 A short detected in the Carriage Assembly. Try the following: n Remove ALL the Printheads and clean the flex contacts on the Printheads and in the Carriage Assembly. n Replace ALL the Printheads. n Replace the Carriage Assembly Page 8-78.
System Error: Problem Description: Corrective Action:
System Error: Problem Description: Corrective Action:
System Error: Problem Description: Corrective Action:
System Error: Problem Description: Corrective Action:
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HP DesignJets 500 and 800 Series Printers Service Manual
System Error Codes
System Error: Problem Description:
21:10 Service Station failure. The possible cause could be: 1. The steps counted by the Service Station motor are not consistent with the expected length of the current movement. 2. The Aerosol Fan has reached its maximum current limit. 3. The Service Station motor has shutdown because of blockage.
Corrective Action:
Replace the Service Station/Aerosol Fan Assembly Page 8-52. 21:11 Service Station/Aerosol Fan cannot be detected or the Service Station is badly adjusted. Try the following: n Reconnect the Service Station/Aerosol Fan Assembly. n Reposition the Service Station trip lever. 22:10 Ink Supply Station failure. The possible cause could be: 1. Reading, writing or initializing the backup EEROM failed. 2. One of the out-of-ink sensors (located in the Ink Supply Station) is not reporting what it should during the initializing process while depressurizing.
System Error: Problem Description: Corrective Action:
System Error: Problem Description:
Corrective Action:
Replace the Ink Supply Station Page 8-48. 41:10 Paper-Axis Motor failure. Replace the Paper-Axis Motor Page 8-84.
System Error: Problem Description: Corrective Action:
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System Error Codes
System Error: Problem Description: Corrective Action:
41:13 Error in the Paper-Axis Motor Encoder quadrature. Try the following:
n Switch the Printer Off and wait a few minutes. Switch the Printer
On again and check if the Error Code has disappeared. n If the Error Code continues, replace the Paper-Axis Motor Page 8-84.
System Error: Problem Description: Corrective Action:
42:10 Scan-Axis Motor failure. Replace the Scan-Axis Motor Page 8-29. 43:10 Vacuum Fan failure. Replace the Vacuum Fan Page 8-64. 43:11 Vacuum Fan not detected. Reconnect the Vacuum Fan. 56:10 Drive Roller Encoder Sensor error. Replace the Drive Roller Encoder Sensor Page 8-38.
System Error: Problem Description: Corrective Action:
System Error: Problem Description: Corrective Action:
System Error: Problem Description: Corrective Action:
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System Error Codes
System Error: Problem Description: Corrective Action:
56:13 Error in the Drive Roller Encoder Sensor quadrature. Try the following:
n Switch the Printer Off and wait a few minutes. Switch the Printer
On again and check if the Error Code has disappeared. n If the Error Code continues, replace the Drive Roller Encoder Sensor Page 8-38.
System Error: Problem Description: Corrective Action:
61:04 Firmware Error. Try the following:
n Switch the Printer Off and wait a few minutes. Switch the Printer
On again and check if the Error Code has disappeared. n If the Error Code reappears, check for a new Firmware release. n If the new Firmware release does not solve the problem, or if new Firmware release was not available, then contact the HP Response Center (or directly to the Division) supplying the following information: Model and Serial Number of the Printer. Firmware release of the Printer (use the Printer Information utility Page 4-26). The complete Error Code information, including the linefeed where the error occurred (use the Error Log utility to obtain this information Page 2-5).
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System Error Codes
System Error: Problem Description: Corrective Action:
61:05 Error Processing Job. This Error Code only appears in HP DesignJets 800 Series, or in the HP DesignJet 500 Series with an HP-GL/2 card installed, when processing either a PostScript or HP-GL/2 file. Try the following:
n Switch the Printer Off and wait a few minutes. Switch the Printer
On again and resend the file that you were trying to print. n If the Error Code reappears after resending the file, then try generating the file again and try to print again. n If the file that is causing this error is PostScript, check if it is Binary. If the file is Binary, use AppleTalk to send the file to the Printer. If AppleTalk is not being used to send the Binary file to the Printer, then change the PostScript settings to Binary through the Front Panel (Set-up menu / PS settings / Encoding / Binary). n If the Error Code continues to reappear, check for a new release of the Driver.
System Error: Problem Description: Corrective Action:
64:04 Firmware Error (USB Port). Try the following:
n Switch the Printer Off and wait a few minutes. Switch the Printer
On again and check if the Error Code has disappeared. n If the Error Code reappears, check for a new Firmware release. n If the new Firmware release does not solve the problem, or if new Firmware release was not available, then contact the HP Response Center (or directly to the Division) supplying the following information: Model and Serial Number of the Printer. Firmware release of the Printer (use the Printer Information utility Page 4-26). The complete Error Code information, including the linefeed where the error occurred (use the Error Log utility to obtain this information Page 2-5).
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System Error Codes
System Error: Problem Description: Corrective Action:
71:04 Problem allocating Memory. This Error Code only appears in HP DesignJets 800 Series, or in the HP DesignJet 500 Series with an HPGL/2 card installed. Try the following:
n Switch the Printer Off and wait a few minutes. Switch the Printer
On again and check if the Error Code has disappeared. n If the Error Code reappears, check for a new Firmware release. n If the new Firmware release does not solve the problem, or if new Firmware release was not available, then contact the HP Response Center (or directly to the Division) supplying the following information: Model and Serial Number of the Printer. Firmware release of the Printer (use the Printer Information utility Page 4-26). The complete Error Code information, including the linefeed where the error occurred (use the Error Log utility to obtain this information Page 2-5).
System Error: Problem Description:
71:06
Out of Memory problem. This Error Code only appears in HP DesignJets 800 Series, or in the HP DesignJet 500 Series with an HP-GL/2 card installed, when processing either a PostScript or HPGL/2 file. Corrective Action: Try the following:
n Check the amount of RAM in the Printer using the Front Panel
(use the Printer Information utility Page 4-26). If necessary, install more memory into the Formatter. n If the problem continues, try processing the file in the PC instead of the Printer (select Avoid out of memory in Advanced options in the Driver).
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System Error Codes
System Error: Problem Description: Corrective Action:
72:04 Problem in the Scan-Axis (Firmware Error). Try the following:
n Switch the Printer Off and wait a few minutes. Switch the Printer
On again and check if the Error Code has disappeared. n If the Error Code reappears, check for a new Firmware release. n If the new Firmware release does not solve the problem, or if new Firmware release was not available, then contact the HP Response Center (or directly to the Division) supplying the following information: Model and Serial Number of the Printer. Firmware release of the Printer (use the Printer Information utility Page 4-26). The complete Error Code information, including the linefeed where the error occurred (use the Error Log utility to obtain this information Page 2-5).
System Error: Problem Description: Corrective Action:
73:04 Servo Error. Try the following:
n Switch the Printer Off and wait a few minutes. Switch the Printer
On again and check if the Error Code has disappeared. n If the Error Code reappears, check for a new Firmware release. n If the new Firmware release does not solve the problem then replace the Electronics Module Page 8-24. n If the problem continues, contact the HP Response Center (or directly to the Division) supplying the following information: Model and Serial Number of the Printer. Firmware release of the Printer (use the Printer Information utility Page 4-26). The complete Error Code information, including the linefeed where the error occurred (use the Error Log utility to obtain this information Page 2-5).
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System Error Codes
System Error: Problem Description: Corrective Action:
79:04 Firmware Error. Try the following:
n Switch the Printer Off and wait a few minutes. Switch the Printer
On again and check if the Error Code has disappeared. n If the Error Code reappears, check for a new Firmware release. n If the new Firmware release does not solve the problem, or if new Firmware release was not available, then contact the HP Response Center (or directly to the Division) supplying the following information: Model and Serial Number of the Printer. Firmware release of the Printer (use the Printer Information utility Page 4-26). The complete Error Code information, including the linefeed where the error occurred (use the Error Log utility to obtain this information Page 2-5).
System Error: Problem Description: Corrective Action:
81:01 Paper-Axis shutdown. If this error code appeared but was NOT caused by a paper jam, then try the following:
n Perform the Paper Advance Test Page 4-10.
System Error: Problem Description: Corrective Action:
81:11 Paper-Axis shutdown (during the Paper Advance test). Refer to Error Code 81:01.
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System Error Codes
System Error: Problem Description: Corrective Action:
85:10 Paper-Axis Encoder error. The Drive Roller Encoder Sensor cannot find the zero position of the Encoder Disk. Try the following:
n Replace the Drive Roller Encoder Sensor Page 8-38. n If the Error Code continues, replace the Drive Roller Page 8-
86.
System Error: Problem Description: Corrective Action:
86:01 Carriage-Axis shutdown. If this error code appeared but was NOT caused by a paper jam, then try the following:
n Too much friction in the Slider Rod. Enter the Printer Information
utility ( Page 4-26) and check the Scan-Axis usage. If the percentage is close to 100%, then lubricate the Slider Rod. n The Carriage is bumping into the Service Station. If the carriage is stuck at the right hand side of the Printer and cannot be moved out to the center of the Print Platen it is because the Service Station cannot uncap the Printheads. In this case replace the Service Station/Aerosol Fan Assembly Page 8-52. n Perform the Carriage Movement test Page 4-8.
System Error: Problem Description: Corrective Action:
86:11 Carriage-Axis shutdown (during the Carriage Movement test). Refer to Error Code 86:01.
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System Error Codes
System Error: Problem Description: Corrective Action:
86:13 Carriage-Axis shutdown (Firmware Error). Try the following: n Switch the Printer Off and wait a few minutes. Switch the Printer On again and check if the Error Code has disappeared. n If the Error Code reappears, check for a new Firmware release. n If the new Firmware release does not solve the problem, or if new Firmware release was not available, contact the HP Response Center (or directly to the Division) supplying the following information: Model and Serial Number of the Printer. Firmware release of the Printer (use the Printer Information utility Page 4-26). The complete Error Code information, including the linefeed where the error occurred (use the Error Log utility to obtain this information Page 2-5). 87:13 Unable to read the Carriage Encoder Sensor. Try the following:
n Switch the Printer Off and wait a few minutes. Switch the Printer
System Error: Problem Description: Corrective Action:
On again and check if the Error Code has disappeared. n If the Error Code continues, replace the Carriage Assembly Page 8-78 or the Encoder Strip Page 8-76.
System Error: Problem Description: Corrective Action:
93:10 Ink System startup failed (also see Page 1-7 for more information). Try the following:
n Check for a leak in the Printer. If a leak is evident (there is ink on
Printer components), replace the Ink Supply Tubes Page 8-60. n Perform the Prime Tubes utility (Refer to Page 4-23) and check how long it takes to complete the procedure. If it takes too long to complete the procedure and there is no leak in the Printer, then replace the Ink Cartridges. If it takes a short time to complete the procedure, then replace the Ink Supply Tubes Page 8-60.
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System Error Codes
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HP DesignJets 500 and 800 Series Printers Service Manual
Ink Supplies Troubleshooting
3
What are the Ink Supplies? 3-2 Ink Cartridges 3-2 Printheads 3-3 Identifying the Components 3-3 General Information About the Ink Supplies 3-4 Some General Precautions When Handling the Ink Supplies 3-5 When Should You Replace the Ink Cartridges? 3-6 When Should You Replace the Printheads? 3-7 Obtaining Ink Cartridge Information 3-9 Obtaining Printhead Information 3-10 Ink Cartridge Status Messages 3-12 Ink Cartridge Status While Replacing 3-12 Printhead Status Messages 3-13 Printhead History Utility 3-14 Accessing the Printhead History Utility 3-14 Is the Printer Causing Repetitive Printhead Problems? 3-16 Is the User Replacing the Printheads too Early? 3-18 Troubleshooting Repetitive Ink Cartridge Messages 3-20 Troubleshooting Repetitive Printhead Error Messages 3-21 Printhead Error Codes 3-22 Summary of Solving Ink Supplies Problems 3-23
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Ink Supplies Troubleshooting
What are the Ink Supplies?
For each of the four ink colors used in the Printer, there are two separate components: the Printhead and the Ink Cartridge. Both components are coded with an HP selection number to identify the correct replacement supplies.
Printhead
Ink Cartridge 69cc
Ink Cartridges
The Ink Cartridges for the HP DesignJet 500 and 800 Series 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 Ink Cartridges are number coded as follows: n HP No.10 for the Black Ink Cartridge. n HP No.82 for the Cyan, Magenta and Yellow Ink Cartridges.
NOTE
It is also possible to use HP No.11 Ink Cartridges for the Cyan, Magenta and Yellow colors. The HP No.11 Ink Cartridges contain 33cc of ink. The front panel displays the status of the Ink Cartridge. With the front panel, detailed information can be checked on the Ink Cartridges, see page Page 3-9, Obtaining Ink Cartridge Information.
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HP DesignJets 500 and 800 Series Printers Service Manual
Ink Supplies Troubleshooting
Printheads
The 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. In order to know when to replace a Printhead, see page Page 3-7, When Should You Replace the Printheads? The Printheads are number coded HP No.11 for ALL colors. If you notice a decline in print quality such as lines or dots missing from text / graphics, go to page Page 6-4, Performing the Troubleshooting Procedure.
Identifying the Components
The following illustration will help you identify the components of the ink supplies.
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Ink Supplies Troubleshooting
General Information About the Ink Supplies
For optimum results from the printer and modular ink delivery system always follow these guidelines when handling the ink supplies:
n Always install the Ink Cartridges and Printheads before the n n n n
n
expiration date, which is on the packaging. Install Ink Cartridges and Printheads in their color-coded slots. Follow the instructions on the front panel of the Printer during installation. Avoid unnecessary removal of the Ink Cartridges and Printheads. When turning off the Printer always use the power Off button located on the left hand side of the Printer. The Printheads are then stored correctly which prevents them from drying out. The 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 Page 3-6, When Should You Replace the Ink Cartridges?
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HP DesignJets 500 and 800 Series Printers Service Manual
Ink Supplies Troubleshooting
Some General Precautions When Handling the Ink Supplies
CAUTION Do not touch, wipe or attempt to clean the Printhead nozzles. This can damage the Printhead.
Do not touch the Electrical Contacts
Do not touch, wipe or attempt to clean the printhead nozzles. This can damage the printhead.
C6074297a
Handle the Ink Supplies with care. In particular the Printhead, which is a high precision device, must be handled very carefully. n Do not touch the Printhead nozzles. n Do not touch the Electrical contacts on the Printhead. n Do not put the Printhead down on the nozzles. n Do not be rough when handling the Printheads. Always set them down gently. n Do not drop the Printheads. n Proper handling will assure optimum performance throughout the Printhead life. n Do 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. n Avoid storing partially used Ink Cartridges on their ends.
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Ink Supplies Troubleshooting
When Should You Replace the Ink Cartridges?
When to change the Ink Cartridges 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 Ink Cartridges. The printer will also display the ink level and will tell you when the Ink Cartridge is almost empty. This means you have constantly updated information about the Ink Cartridges. There are 3 circumstances when you need to replace the Ink Cartridges which are explained as follows:
n Ink Cartridge Error message. When this message appears, the
Ink Cartridge has experienced a problem and should be replaced. If this message appears repetitively, refer to Page 3-20, Troubleshooting Repetitive Ink Cartridge Messages.
n Out of Ink message. When this message appears, the Ink
Cartridge is out of ink and should be replaced. If this message appears repetitively, refer to Page 3-20, Troubleshooting Repetitive Ink Cartridge Messages.
n Expiration message. When this message appears, the Printer is
warning you that the Ink Cartridge is close to the expiration date. Once the expiration date has been reached, the Printer will stop working and you will need to install a new Ink Cartridge in order to proceed. If this message appears repetitively, refer to Page 320, Troubleshooting Repetitive Ink Cartridge Messages.
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Ink Supplies Troubleshooting
When Should You Replace the Printheads?
In a normal situation, the Printhead should ONLY ever be replaced when advised by the Printer. If Print Quality is poor, the first step should ALWAYS be to perform the Troubleshooting procedure (Refer to Page 6-4) which will determine whether the Printhead needs replacing or not after performing various levels of recovery actions. The minimum life expectancy of the Printhead is anticipated to be 530cc for the Black Printhead and 200cc for the Color Printheads, 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. There are 3 circumstances when you need to replace the Printheads which are explained as follows:
n Printhead Error message. When this message appears, the
Printer has determined that one of the Printheads has experienced a problem and should be replaced. If this message appears repetitively, refer to Page 3-21, Troubleshooting Repetitive Printhead Error Messages.
n Printhead Error (unknown) message. When this message
appears, one of the Printheads has experienced a problem but the Printer does not know which one it is.
In order to identify and replace the failing Printhead, try the following: 1 Select replace Printheads from the front panel. 2 Open the Carriage cover and remove ALL the Printheads.
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Ink Supplies Troubleshooting 3 Reinsert the Cyan Printhead only and close the Carriage cover and the Window. 4 Check the front panel - if the status of the Cyan Printhead is X or ? then the conclusion is that the Cyan Printhead is faulty and must be replaced. If the status of the Cyan Printhead is OK the conclusion is that the Cyan Printhead is working correctly. Repeat the process from step 1 for the other Printheads to identify which one is failing.
n Printhead Warning message. When this message appears
(normally appears when you check the status of the Printheads by selecting the Ink Menu), the Printer has determined that one of the Printheads has worn out and should be replaced.
The Printer normally determines this when: 1 The Printhead Alignment fails due to a faulty Printhead and the Printer tries to recover the Printhead (upto 3 times) but is not successful after the 4th attempt at the Printhead Alignment (or if the recovery process or the Printhead Alignments are cancelled). 2 The Troubleshooting process is performed but the Printer cannot recover the failing Printhead even after performing the maximum recovery action.
NOTE
The user can continue using the Printer even with the Printhead Warning message but will not get the maximum Print Quality that the Printer is designed to provide, unless he replaces the worn out Printhead.
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Ink Supplies Troubleshooting
Obtaining Ink Cartridge Information
1 To get information on the Ink Cartridges press the or key until the front panel displays the Ink Menu. Press the Enter key.
Ink menu Ink cartridges Back Enter Menu
2 Press the or key until the front panel highlights Information.
Press the Enter key.
Ink Menu Information Color calibration Troubleshooting Align printheads Replace printheads Menu Back Enter
3 Press the or key until the front panel highlights Ink cartridges. Press the Enter key.
Information Menu Back Ink cartridges Printheads Enter
4 Press the or key until the front panel highlights the color that you want to see information on. Press the Enter key.
Select ink cartridge Ink levels Cyan ink cartridge Magenta ink cartridge Yellow ink cartridge Black ink cartridge Menu Back Enter
5 The front panel displays information on the selected Ink Cartridge.
Black cartridge info Model: HP Black No. 10 Status: inserted Expiration date: 15-Aug-2002 Serial number: 06-02-1232651 Ink level: 63cc (91%) Menu Back Enter
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Ink Supplies Troubleshooting The information displayed is: n The model of the Ink Cartridge (No.10 for Black and No.82 for the Colors is recommended). n Status of the Ink Cartridge. n The warranty expiration date of the Ink Cartridge. n The Serial Number of the Ink Cartridge. n The amount of ink remaining in the Ink cartridge (the error of the ink level can be as much as + or - 25% according to the specifications of the Printer).
Obtaining Printhead Informatio