Service Manual
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Part Numbers Part Numbers for Printer options, accessories and service parts are to be performed by HP Certified service personnel only. Using this Service Manual are located in 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...
Part Numbers Part Numbers for Printer options, accessories and service parts are to be performed by HP Certified service personnel only. Using this Service Manual are located in 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...
Service Manual
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... 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...) and the "SELF TEST..." Table of Contents Table of the Print Quality LEDs 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 3
... 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...) and the "SELF TEST..." Table of Contents Table of the Print Quality LEDs 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 3
Service Manual
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...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 ...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 4 HP DesignJets 1050C and 1055CM Printers Service Manual
...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 ...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 4 HP DesignJets 1050C and 1055CM Printers Service Manual
Service Manual
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... 3. EEROM Utilities 4-38 7. Color to Paper Spacing 5-15 6. Pen to Color calibration 5-16 7. Hard Disk Drive 4-12 4. Set Asian PS Fonts 4-33 4. Line Sensor 5-9 3. Pen Alignment 5-22 Carriage Height Calibration 5-24 HP DesignJets 1050C and 1055CM Printers Service Manual 5 Table of Contents Service Tests and Utilities 4-1 Service Tests (Diagnostics) 4-3 Entering the Service Tests Menu 4-4 1. EIO Card 4-10 3. Printer Model Type 4-35 5. Accuracy...
... 3. EEROM Utilities 4-38 7. Color to Paper Spacing 5-15 6. Pen to Color calibration 5-16 7. Hard Disk Drive 4-12 4. Set Asian PS Fonts 4-33 4. Line Sensor 5-9 3. Pen Alignment 5-22 Carriage Height Calibration 5-24 HP DesignJets 1050C and 1055CM Printers Service Manual 5 Table of Contents Service Tests and Utilities 4-1 Service Tests (Diagnostics) 4-3 Entering the Service Tests Menu 4-4 1. EIO Card 4-10 3. Printer Model Type 4-35 5. Accuracy...
Service Manual
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... 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 6 HP DesignJets 1050C and 1055CM Printers Service Manual
... 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 6 HP DesignJets 1050C and 1055CM Printers Service Manual
Service Manual
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... 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... 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 7
... 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... 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 7
Service Manual
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... 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 8 HP DesignJets 1050C and 1055CM Printers Service Manual
... 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 8 HP DesignJets 1050C and 1055CM Printers Service Manual
Service Manual
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...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 ...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 9
...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 ...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 9
Service Manual
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... 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, ...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 Message Remains on the Front Panel is Lit (and nothing else) and the "SELF TEST..."
... 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, ...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 Message Remains on the Front Panel is Lit (and nothing else) and the "SELF TEST..."
Service Manual
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... code which is not documented in Utilities / Statistics / Code rev. Check firmware in this information, HP Support Personnel cannot help you. 1-2 HP DesignJets 1050C and 1055CM Printers Service Manual n Which software application the customer is using (name, version, etc.). Without this Service Manual or you have the following information ready: n Model and Serial Number of system error codes and...
... code which is not documented in Utilities / Statistics / Code rev. Check firmware in this information, HP Support Personnel cannot help you. 1-2 HP DesignJets 1050C and 1055CM Printers Service Manual n Which software application the customer is using (name, version, etc.). Without this Service Manual or you have the following information ready: n Model and Serial Number of system error codes and...
Service Manual
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... to replace, just to make sure that is the component/assembly that has failed. The Image Quality Print will help diagnose the problem. Service Calibrations. HP DesignJets 1050C and 1055CM Printers Service Manual 1-3 For information on that you should NOT replace it is advisable to print the Image Quality Print to help you differentiate between possible printhead...
... to replace, just to make sure that is the component/assembly that has failed. The Image Quality Print will help diagnose the problem. Service Calibrations. HP DesignJets 1050C and 1055CM Printers Service Manual 1-3 For information on that you should NOT replace it is advisable to print the Image Quality Print to help you differentiate between possible printhead...
Service Manual
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... cover and the sideplate. 1-4 HP DesignJets 1050C and 1055CM Printers Service Manual d Switch the Printer ON again e If the Printer functions correctly with the Network Card installed, then you must replace it . 2 Make sure that none 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...
... cover and the sideplate. 1-4 HP DesignJets 1050C and 1055CM Printers Service Manual d Switch the Printer ON again e If the Printer functions correctly with the Network Card installed, then you must replace it . 2 Make sure that none 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...
Service Manual
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... the Front Panel is NOT correctly installed or Faulty. 1 Power OFF the Printer from the back and disconnect the power cord. HP DesignJets 1050C and 1055CM Printers Service Manual 1-5 Troubleshooting The Printer does not Power ON 1 Check that the power cord is connected correctly to the Printer and to the Electronics Module. ALL the Front-Panel LEDs are installed...
... the Front Panel is NOT correctly installed or Faulty. 1 Power OFF the Printer from the back and disconnect the power cord. HP DesignJets 1050C and 1055CM Printers Service Manual 1-5 Troubleshooting The Printer does not Power ON 1 Check that the power cord is connected correctly to the Printer and to the Electronics Module. ALL the Front-Panel LEDs are installed...
Service Manual
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...on the Platen surface can fool the sensor by reflecting the light. Try loading white HP media in the Carriage Assembly using the Carriage Interconnect Wiper (Refer to the Printer and check if the Line sensor detects it. 2 Excessive ink deposits on the Front...HP media. Perform the Line Sensor calibration ⇒ Page 5-9. 4 The Line Sensor is being used since the Line sensor may have problems detecting transparent media or some types of media that is damaged or faulty. Replace the Carriage Assembly ⇒ Page 8-44. 1-6 HP DesignJets 1050C and 1055CM Printers Service Manual
...on the Platen surface can fool the sensor by reflecting the light. Try loading white HP media in the Carriage Assembly using the Carriage Interconnect Wiper (Refer to the Printer and check if the Line sensor detects it. 2 Excessive ink deposits on the Front...HP media. Perform the Line Sensor calibration ⇒ Page 5-9. 4 The Line Sensor is being used since the Line sensor may have problems detecting transparent media or some types of media that is damaged or faulty. Replace the Carriage Assembly ⇒ Page 8-44. 1-6 HP DesignJets 1050C and 1055CM Printers Service Manual
Service Manual
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... media to avoid cockle, one of the primary causes of media jams and head crashes (especially head crashes because HP media is at the incorrect height in relation to resolve the HP DesignJets 1050C and 1055CM Printers Service Manual 1-7 The failure modes "media jam" and "head crash" are grouped together because in the paper path. NOTE NOTE...
... media to avoid cockle, one of the primary causes of media jams and head crashes (especially head crashes because HP media is at the incorrect height in relation to resolve the HP DesignJets 1050C and 1055CM Printers Service Manual 1-7 The failure modes "media jam" and "head crash" are grouped together because in the paper path. NOTE NOTE...
Service Manual
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... ⇒ Page 8-12. Paper Path 1 Open the Window and check for any procedures to resolve the problem. Lift the Pinch wheels (using a damp cloth. 1-8 HP DesignJets 1050C and 1055CM Printers Service Manual Printhead Path When a shutdown occurs in the Printhead path, you will give an indication on where the failure occurred: PWM Shutdown (1) and Energy Shutdown...
... ⇒ Page 8-12. Paper Path 1 Open the Window and check for any procedures to resolve the problem. Lift the Pinch wheels (using a damp cloth. 1-8 HP DesignJets 1050C and 1055CM Printers Service Manual Printhead Path When a shutdown occurs in the Printhead path, you will give an indication on where the failure occurred: PWM Shutdown (1) and Energy Shutdown...
Service Manual
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...problem. To solve the problem, try the following : n Advise the customer to install the Media Bin cover, that was included with the Printer, to hold the sheet in place (no suction), then try the following: n Check that the Vacuum Fan is a problem with the ... (must be held the sheet in place, and then loads it , then there could be a problem with the Overdrive. HP DesignJets 1050C and 1055CM Printers Service Manual 1-9 PRINTER LIMITATION - Troubleshooting Problems with the Vacuum Fan If you have problems loading either Roll or Sheet Media, then there could be ...
...problem. To solve the problem, try the following : n Advise the customer to install the Media Bin cover, that was included with the Printer, to hold the sheet in place (no suction), then try the following: n Check that the Vacuum Fan is a problem with the ... (must be held the sheet in place, and then loads it , then there could be a problem with the Overdrive. HP DesignJets 1050C and 1055CM Printers Service Manual 1-9 PRINTER LIMITATION - Troubleshooting Problems with the Vacuum Fan If you have problems loading either Roll or Sheet Media, then there could be ...
Service Manual
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...dots. If Ink Limiting is OFF, turn it ON. 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 Coated Media. The ink on the covered part of the..., turn it ON. This is ON or OFF. To find the environmental conditions, print the Service Configuration Print (Printer Setup Menu / Utilities / Test prints / Service config) 1-10 HP DesignJets 1050C and 1055CM Printers Service Manual n Change the paper margins to crash against the media. Depending on the Coated Media, the borders...
...dots. If Ink Limiting is OFF, turn it ON. 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 Coated Media. The ink on the covered part of the..., turn it ON. This is ON or OFF. To find the environmental conditions, print the Service Configuration Print (Printer Setup Menu / Utilities / Test prints / Service config) 1-10 HP DesignJets 1050C and 1055CM Printers Service Manual n Change the paper margins to crash against the media. Depending on the Coated Media, the borders...
Service Manual
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... Paper). n Avoid very long exposures to extreme environmental conditions after printing with the rest of media. To solve the problem, try the following : n Perform the color calibration from the driver at 80% humidity may help in color). HP DesignJets 1050C and 1055CM Printers Service Manual 1-11 Troubleshooting HP-GL/2 color differences in order to obtain the desired...
... Paper). n Avoid very long exposures to extreme environmental conditions after printing with the rest of media. To solve the problem, try the following : n Perform the color calibration from the driver at 80% humidity may help in color). HP DesignJets 1050C and 1055CM Printers Service Manual 1-11 Troubleshooting HP-GL/2 color differences in order to obtain the desired...