Service Manual
Page 4
... to indicate other parts of the Service Manual where you are consulting. 2 HP DesignJets 1050C and 1055CM Printers Service Manual Part Numbers Part Numbers for Printer options, accessories and service parts 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 topic you can...
... to indicate other parts of the Service Manual where you are consulting. 2 HP DesignJets 1050C and 1055CM Printers Service Manual Part Numbers Part Numbers for Printer options, accessories and service parts 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 topic you can...
Service Manual
Page 5
...Banding due to Navigate through the Front-Panel Menu 1-15 Service Configuration Print 1-19 HP DesignJets 1050C and 1055CM Printers Service Manual 3 Table of Contents Table of the Print Quality LEDs on HP Coated media 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...
...Banding due to Navigate through the Front-Panel Menu 1-15 Service Configuration Print 1-19 HP DesignJets 1050C and 1055CM Printers Service Manual 3 Table of Contents Table of the Print Quality LEDs on HP Coated media 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...
Service Manual
Page 6
...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
Page 7
... 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. Scan Axis 4-17 6. Paper Axis 4-20 7. EEROM Utilities 4-38 7. Accuracy Calibration 5-6 2. Roller Mark Position 5-13 5. Mode Baud Sel. 4-42 Service Calibrations 5-1 Service Calibrations 5-2 Entering the Service Calibrations Menu 5-4 1. Printer Model Type 4-35 5. Line Sensor 5-9 3. Color to Paper Spacing...
... 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. Scan Axis 4-17 6. Paper Axis 4-20 7. EEROM Utilities 4-38 7. Accuracy Calibration 5-6 2. Roller Mark Position 5-13 5. Mode Baud Sel. 4-42 Service Calibrations 5-1 Service Calibrations 5-2 Entering the Service Calibrations Menu 5-4 1. Printer Model Type 4-35 5. Line Sensor 5-9 3. Color to Paper Spacing...
Service Manual
Page 8
... 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
Page 9
... 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
Page 10
... 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
Page 11
...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
Page 13
... 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...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 variable extreme environmental conditions 1-12 Banding due to Navigate through the Front-Panel Menu 1-15 Service Configuration Print 1-19 HP DesignJets 1050C and 1055CM Printers Service Manual...
... 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...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 variable extreme environmental conditions 1-12 Banding due to Navigate through the Front-Panel Menu 1-15 Service Configuration Print 1-19 HP DesignJets 1050C and 1055CM Printers Service Manual...
Service Manual
Page 14
... Office. n Which software application the customer is not documented in Utilities / Statistics / Code rev. When reporting the System Error Code, make sure that you . 1-2 HP DesignJets 1050C and 1055CM Printers Service Manual When reporting the error, have an error which is using (See Note below ). NOTE Troubleshooting System Error Codes Chapter 2 - Only try one recommended action...
... Office. n Which software application the customer is not documented in Utilities / Statistics / Code rev. When reporting the System Error Code, make sure that you . 1-2 HP DesignJets 1050C and 1055CM Printers Service Manual When reporting the error, have an error which is using (See Note below ). NOTE Troubleshooting System Error Codes Chapter 2 - Only try one recommended action...
Service Manual
Page 15
...gain access to another Assembly or Component. Refer to the table on the Service Tests and how to use them see Chapter 6 Print Quality. Service Tests and Utilities. Remember that certain Calibrations are about to replace, just... - Solving Image Quality Problems Whenever an Image Quality problem appears, it . HP DesignJets 1050C and 1055CM Printers Service Manual 1-3 Performing the Necessary Service Calibrations Is the printer calibrated correctly after replacing a component? Service Calibrations. For information on Page 5-2 to determine when a calibration is advisable ...
...gain access to another Assembly or Component. Refer to the table on the Service Tests and how to use them see Chapter 6 Print Quality. Service Tests and Utilities. Remember that certain Calibrations are about to replace, just... - Solving Image Quality Problems Whenever an Image Quality problem appears, it . HP DesignJets 1050C and 1055CM Printers Service Manual 1-3 Performing the Necessary Service Calibrations Is the printer calibrated correctly after replacing a component? Service Calibrations. For information on Page 5-2 to determine when a calibration is advisable ...
Service Manual
Page 16
... sure that the two installation screws are completely tightened. g Switch the Printer ON again h Check if the Printer functions correctly with the Network Card installed, switch the Printer OFF again. If the Printer DOES NOT function correctly with the Hard Disk Drive and the Network Card... the back of the cables connected to the Electronics Module have been pinched between the cover and the sideplate. 1-4 HP DesignJets 1050C and 1055CM Printers Service Manual Troubleshooting NOTE NOTE NOTE Front-Panel LEDs Flash Briefly at Power ON & Nothing Else Happens The Power Supply detects a...
... sure that the two installation screws are completely tightened. g Switch the Printer ON again h Check if the Printer functions correctly with the Network Card installed, switch the Printer OFF again. If the Printer DOES NOT function correctly with the Hard Disk Drive and the Network Card... the back of the cables connected to the Electronics Module have been pinched between the cover and the sideplate. 1-4 HP DesignJets 1050C and 1055CM Printers Service Manual Troubleshooting NOTE NOTE NOTE Front-Panel LEDs Flash Briefly at Power ON & Nothing Else Happens The Power Supply detects a...
Service Manual
Page 17
... that the Power Switch on the BACK of the DRAM DIMMs is Lit (and nothing else) and the "SELF TEST..." HP DesignJets 1050C and 1055CM Printers Service Manual 1-5 Reseat the Firmware DIMM (the first slot from the right) making sure that they are Lit but Nothing Else Happens The Firmware DIMM ... that the Firmware DIMM is installed correctly in the ON position. 4 Check that the Front-Panel Cable is NOT correctly installed. 1 Power OFF the Printer from the back and disconnect the power cord. Message Remains on the Front Panel is NOT correctly installed or Faulty. 1 Power OFF the...
... that the Power Switch on the BACK of the DRAM DIMMs is Lit (and nothing else) and the "SELF TEST..." HP DesignJets 1050C and 1055CM Printers Service Manual 1-5 Reseat the Firmware DIMM (the first slot from the right) making sure that they are Lit but Nothing Else Happens The Firmware DIMM ... that the Firmware DIMM is installed correctly in the ON position. 4 Check that the Front-Panel Cable is NOT correctly installed. 1 Power OFF the Printer from the back and disconnect the power cord. Message Remains on the Front Panel is NOT correctly installed or Faulty. 1 Power OFF the...
Service Manual
Page 18
... sensor may have problems detecting transparent media or some types of media that is not calibrated correctly. Replace the Carriage Assembly ⇒ Page 8-44. 1-6 HP DesignJets 1050C and 1055CM Printers Service Manual Perform the Line Sensor calibration ⇒ Page 5-9. 4 The Line Sensor is damaged or faulty. Cover Sensors are rejected (the status message on the Platen...
... sensor may have problems detecting transparent media or some types of media that is not calibrated correctly. Replace the Carriage Assembly ⇒ Page 8-44. 1-6 HP DesignJets 1050C and 1055CM Printers Service Manual Perform the Line Sensor calibration ⇒ Page 5-9. 4 The Line Sensor is damaged or faulty. Cover Sensors are rejected (the status message on the Platen...
Service Manual
Page 19
... to be the cause of media jams and head crashes (especially head crashes because HP media is specially formulated to resolve the HP DesignJets 1050C and 1055CM Printers Service Manual 1-7 n Check Paper Path. NOTE NOTE Troubleshooting Troubleshooting Media Jams/Printhead Crashes If using non-HP media? To clear this, you will get stuck in each path will require...
... to be the cause of media jams and head crashes (especially head crashes because HP media is specially formulated to resolve the HP DesignJets 1050C and 1055CM Printers Service Manual 1-7 n Check Paper Path. NOTE NOTE Troubleshooting Troubleshooting Media Jams/Printhead Crashes If using non-HP media? To clear this, you will get stuck in each path will require...
Service Manual
Page 20
... inside the paper path, lift the Pinch wheels (using the Media Load Handles) and clear the obstruction. Lift the Pinch wheels (using a damp cloth. 1-8 HP DesignJets 1050C and 1055CM Printers Service Manual The (*) will be because the media is a wrinkled mass of the Drive Roller. In each case, make sure that you will give an indication...
... inside the paper path, lift the Pinch wheels (using the Media Load Handles) and clear the obstruction. Lift the Pinch wheels (using a damp cloth. 1-8 HP DesignJets 1050C and 1055CM Printers Service Manual The (*) will be because the media is a wrinkled mass of the Drive Roller. In each case, make sure that you will give an indication...
Service Manual
Page 21
PRINTER LIMITATION - Bin marks on prints done on HP High Gloss media Prints done on HP High Gloss media are NOT blocked. n If possible, advise the customer to hold the sheet in place, but couldn't correctly load it correctly, then... 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 a problem with the blue lines on the Center Platen. n Printhead crashes against the Media. HP DesignJets 1050C and 1055CM Printers Service Manual 1-9 To verify if there really is installed correctly. n ...
PRINTER LIMITATION - Bin marks on prints done on HP High Gloss media Prints done on HP High Gloss media are NOT blocked. n If possible, advise the customer to hold the sheet in place, but couldn't correctly load it correctly, then... 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 a problem with the blue lines on the Center Platen. n Printhead crashes against the Media. HP DesignJets 1050C and 1055CM Printers Service Manual 1-9 To verify if there really is installed correctly. n ...
Service Manual
Page 22
...part of a print done on HP High Gloss Media. If the Printer places too much ink on HP Coated Media. If Ink Limiting is OFF, turn it ON. Color changes when stacking prints done on HP High Gloss Media Color differences can cause cockle mainly on...the Front Panel if Ink Limiting 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 To solve the problem, try the following : n Check in the Driver. To solve the ...
...part of a print done on HP High Gloss Media. If the Printer places too much ink on HP Coated Media. If Ink Limiting is OFF, turn it ON. Color changes when stacking prints done on HP High Gloss Media Color differences can cause cockle mainly on...the Front Panel if Ink Limiting 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 To solve the problem, try the following : n Check in the Driver. To solve the ...
Service Manual
Page 23
... compared with glossy media (more than 12 hours at 80% humidity may help in color). To solve the problem, try the following : n Increase the Dry Time using the Front Panel (Refer to the User's Guide - HP DesignJets 1050C and 1055CM Printers Service Manual 1-11 However, that calibration is high and the printed area can touch the media...
... compared with glossy media (more than 12 hours at 80% humidity may help in color). To solve the problem, try the following : n Increase the Dry Time using the Front Panel (Refer to the User's Guide - HP DesignJets 1050C and 1055CM Printers Service Manual 1-11 However, that calibration is high and the printed area can touch the media...