Service Manual
Page 7
... life ...93 Locate supplies 94 Supply replacement guidelines 94 Change print cartridges 94 Change the toner collection unit 98 Install memory 100 Install DDR memory DIMMs 100 Enable memory for Windows 104 Install an HP Jetdirect or EIO print server card or EIO hard disk . . . 105 Clean the product ...document-feeder rollers 110 Clean the fuser ...111 Product updates ...112 Determine the current firmware version 112 Download new firmware from the HP Web site 112 Transfer the new firmware to the product 112 Use the flash executable file to update the firmware 112 Use FTP to upload the ...
... life ...93 Locate supplies 94 Supply replacement guidelines 94 Change print cartridges 94 Change the toner collection unit 98 Install memory 100 Install DDR memory DIMMs 100 Enable memory for Windows 104 Install an HP Jetdirect or EIO print server card or EIO hard disk . . . 105 Clean the product ...document-feeder rollers 110 Clean the fuser ...111 Product updates ...112 Determine the current firmware version 112 Download new firmware from the HP Web site 112 Transfer the new firmware to the product 112 Use the flash executable file to update the firmware 112 Use FTP to upload the ...
Service Manual
Page 8
...Image-formation process 134 Step 1: Pre-exposure 135 Step 2: Primary charging 135 Step 3: Laser-beam exposure 136 Step 4: Development 136 Step 5: Primary transfer 136 Step 6: Secondary transfer 137 Step 7: Separation 138 Step 8: Fusing 138 Step 9: ITB cleaning 139 Step ... 139 Print cartridge ...139 Developing-roller engagement and disengagement 141 Intermediate transfer belt (ITB) unit 142 Primary-transfer-roller engagement and disengagement 143 ITB cleaning ...144 Calibration ...145 Color-misregistration control 146 Image-stabilization control 147 Pickup, feed, and delivery...
...Image-formation process 134 Step 1: Pre-exposure 135 Step 2: Primary charging 135 Step 3: Laser-beam exposure 136 Step 4: Development 136 Step 5: Primary transfer 136 Step 6: Secondary transfer 137 Step 7: Separation 138 Step 8: Fusing 138 Step 9: ITB cleaning 139 Step ... 139 Print cartridge ...139 Developing-roller engagement and disengagement 141 Intermediate transfer belt (ITB) unit 142 Primary-transfer-roller engagement and disengagement 143 ITB cleaning ...144 Calibration ...145 Color-misregistration control 146 Image-stabilization control 147 Pickup, feed, and delivery...
Service Manual
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......134 Figure 5-11 Pre-exposure ...135 Figure 5-12 Primary charging ...135 Figure 5-13 Laser-beam exposure ...136 Figure 5-14 Development ...136 Figure 5-15 Primary transfer ...137 Figure 5-16 Secondary transfer ...137 Figure 5-17 Separation ...138 Figure 5-18 Fusing ...138 Figure 5-19 ITB cleaning ...21 Print-cartridge system ...140 Figure 5-22 Developing-roller engagement and disengagement control 141 Figure 5-23 ITB unit ...142 Figure 5-24 Three states of primary-transfer-roller engagement and disengagement 144 Figure 5-25 ITB cleaning process ...145 Figure 5-26 Toner patterns for ...
......134 Figure 5-11 Pre-exposure ...135 Figure 5-12 Primary charging ...135 Figure 5-13 Laser-beam exposure ...136 Figure 5-14 Development ...136 Figure 5-15 Primary transfer ...137 Figure 5-16 Secondary transfer ...137 Figure 5-17 Separation ...138 Figure 5-18 Fusing ...138 Figure 5-19 ITB cleaning ...21 Print-cartridge system ...140 Figure 5-22 Developing-roller engagement and disengagement control 141 Figure 5-23 ITB unit ...142 Figure 5-24 Three states of primary-transfer-roller engagement and disengagement 144 Figure 5-25 ITB cleaning process ...145 Figure 5-26 Toner patterns for ...
Service Manual
Page 147
...sleeve Pressurizes the fuser pressure roller Detects the print cartridges ● Detects the home position for the primary transfer roller and the developing unit ● Cleans the secondary transfer roller Standby Initial rotation From the end of the waiting sequence or ● the last rotation until the...● print command until the motors stop rotating ● Moves the last printed sheet into the output bin ● Stops each laser/scanner unit ● Warms the fuser to the paper ● Fuses the toner image onto the paper ● Performs calibration after the specified ...
...sleeve Pressurizes the fuser pressure roller Detects the print cartridges ● Detects the home position for the primary transfer roller and the developing unit ● Cleans the secondary transfer roller Standby Initial rotation From the end of the waiting sequence or ● the last rotation until the...● print command until the motors stop rotating ● Moves the last printed sheet into the output bin ● Stops each laser/scanner unit ● Warms the fuser to the paper ● Fuses the toner image onto the paper ● Performs calibration after the specified ...
Service Manual
Page 152
The motors drive the components in the yellow/ magenta laser scanner M10 Developing Drives the developing Stepping motor No disengagement motor unit disengagement M11 Duplex reverse motor Drives the duplex Stepping motor No reverse roller and duplex feed roller M12 Residual ... and primary charging roller (cyan) M5 Drum motor 3 Drives the DC motor Yes photosensitive drum (black), developing unit (black), and ITB drive roller, and secondary transfer roller M7 Lifter motor Drives the lifter for the DC motor Yes cassette M8 Cyan/black scanner Drives the scanner ...
The motors drive the components in the yellow/ magenta laser scanner M10 Developing Drives the developing Stepping motor No disengagement motor unit disengagement M11 Duplex reverse motor Drives the duplex Stepping motor No reverse roller and duplex feed roller M12 Residual ... and primary charging roller (cyan) M5 Drum motor 3 Drives the DC motor Yes photosensitive drum (black), developing unit (black), and ITB drive roller, and secondary transfer roller M7 Lifter motor Drives the lifter for the DC motor Yes cassette M8 Cyan/black scanner Drives the scanner ...
Service Manual
Page 153
... FM1 FM2 FM3 Name Power supply fan Cartridge fan Delivery fan Cooling area Type Around the power supply unit Intake Around the cartridges Intake Around the delivery unit Intake Speed Full/half Full/half Full/half High-voltage power supply The high-voltage power supply delivers ...the high-voltage biases to the following components used to transfer toner during the image-formation process: ● Primary-charging roller (...
... FM1 FM2 FM3 Name Power supply fan Cartridge fan Delivery fan Cooling area Type Around the power supply unit Intake Around the cartridges Intake Around the delivery unit Intake Speed Full/half Full/half Full/half High-voltage power supply The high-voltage power supply delivers ...the high-voltage biases to the following components used to transfer toner during the image-formation process: ● Primary-charging roller (...
Service Manual
Page 172
... ● ITB drive roller ● ITB-driven roller ● Primary-transfer rollers ● ITB cleaner The ITB motor drives the ITB drive roller, which rotates the ITB. Intermediate transfer belt (ITB) unit The ITB unit accepts the toner images from the developing home-position sensor, it determines that... the developing-disengagement motor has failed. Figure 5-23 ITB unit Y M C K 142 Chapter 5 Theory of operation ENWW The ITB cleaner cleans the ITB surface. If the next print job is full-color mode, each print job, all four of the developing rollers disengage ...
... ● ITB drive roller ● ITB-driven roller ● Primary-transfer rollers ● ITB cleaner The ITB motor drives the ITB drive roller, which rotates the ITB. Intermediate transfer belt (ITB) unit The ITB unit accepts the toner images from the developing home-position sensor, it determines that... the developing-disengagement motor has failed. Figure 5-23 ITB unit Y M C K 142 Chapter 5 Theory of operation ENWW The ITB cleaner cleans the ITB surface. If the next print job is full-color mode, each print job, all four of the developing rollers disengage ...
Service Manual
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... does not receive the expected signal from the photosensitive drums. Table 5-10 Primary-transfer-roller engagement states All rollers disengaged The home position for the ITB unit All rollers engaged The state for a full-color print job Black roller engaged The state for a black-only print job The... primary-transfer-roller disengagement motor rotates or reverses to the right or left. This movement causes the primary-transfer rollers to move ...
... does not receive the expected signal from the photosensitive drums. Table 5-10 Primary-transfer-roller engagement states All rollers disengaged The home position for the ITB unit All rollers engaged The state for a full-color print job Black roller engaged The state for a black-only print job The... primary-transfer-roller disengagement motor rotates or reverses to the right or left. This movement causes the primary-transfer rollers to move ...
Service Manual
Page 174
... notifies the formatter. The screw feeds the residual toner to the residual toner feed unit. The residual toner feed 144 Chapter 5 Theory of primary-transfer-roller engagement and disengagement FUSER MOTOR CONTROL Four colors are disengaged Fuser motor Y Y M M C Four colors are engaged C K K Y Y M M C Only black is engaged C K K Y Y M M C C K K ITB cleaning The cleaning blade in the ITB...
... notifies the formatter. The screw feeds the residual toner to the residual toner feed unit. The residual toner feed 144 Chapter 5 Theory of primary-transfer-roller engagement and disengagement FUSER MOTOR CONTROL Four colors are disengaged Fuser motor Y Y M M C Four colors are engaged C K K Y Y M M C Only black is engaged C K K Y Y M M C C K K ITB cleaning The cleaning blade in the ITB...
Service Manual
Page 181
Figure 5-30 Pickup and feed unit Y M C K ENWW Pickup, feed, and delivery system 151 Pickup-and-feed unit The pickup-and-feed unit picks an individual sheet of paper from the multipurpose tray or the cassettes, carries it through the secondary-transfer unit, and feeds it into the fuser.
Figure 5-30 Pickup and feed unit Y M C K ENWW Pickup, feed, and delivery system 151 Pickup-and-feed unit The pickup-and-feed unit picks an individual sheet of paper from the multipurpose tray or the cassettes, carries it through the secondary-transfer unit, and feeds it into the fuser.
Service Manual
Page 189
... and delivery unit fuses the toner onto the paper and delivers the printed page into the output bin. If the intensity of the paper between the second-transfer roller and the fuser. ● If the fuser rollers rotate more slowly than the secondary transfer rollers, the...crease occurs. ● If the fuser rollers rotate faster than the secondary transfer rollers, the paper warp decreases and the toner image fails to transfer to the paper correctly, causing color misregistration. Figure 5-39 Fuser and delivery unit Fuser/delivery block Y M C K Loop control The loop control monitors the...
... and delivery unit fuses the toner onto the paper and delivers the printed page into the output bin. If the intensity of the paper between the second-transfer roller and the fuser. ● If the fuser rollers rotate more slowly than the secondary transfer rollers, the...crease occurs. ● If the fuser rollers rotate faster than the secondary transfer rollers, the paper warp decreases and the toner image fails to transfer to the paper correctly, causing color misregistration. Figure 5-39 Fuser and delivery unit Fuser/delivery block Y M C K Loop control The loop control monitors the...
Service Manual
Page 322
... the door becomes dislodged, see Reinstall the residual-toner collection door on page 190. ● Intermediate transfer belt (ITB). See Toner-collection unit on page 296 to reinstall it. 1. Release one tab (callout 1) while you remove the assembly. Figure 6-179 Remove the residual-toner-feed motor (1 of 7) 1 2 292 .... Remove the residual-toner-feed motor NOTE: Be careful. Do not dislodge the residual-toner collection door when you support the cover (callout 2). See Intermediate transfer belt (ITB) on page 233.
... the door becomes dislodged, see Reinstall the residual-toner collection door on page 190. ● Intermediate transfer belt (ITB). See Toner-collection unit on page 296 to reinstall it. 1. Release one tab (callout 1) while you remove the assembly. Figure 6-179 Remove the residual-toner-feed motor (1 of 7) 1 2 292 .... Remove the residual-toner-feed motor NOTE: Be careful. Do not dislodge the residual-toner collection door when you support the cover (callout 2). See Intermediate transfer belt (ITB) on page 233.
Service Manual
Page 483
... Verify that the cartridges are being correctly alienated. 2. The position of the alienation mechanism in the ITB is monitored by the primary transfer roller disengagement sensor (SR17), which is located in the cable that is full. ● The chute at the motor (M10), J261...developinghome-position sensor (SR11). If the sensor is defective, replace the main-drive assembly. 59.F0 ERROR The transfer unit is "0". has occurred. Replace the toner-collection unit. Disconnect the in the Troubleshooting menu. Perform the Alienation Motor test in the Component Tests menu in -line ...
... Verify that the cartridges are being correctly alienated. 2. The position of the alienation mechanism in the ITB is monitored by the primary transfer roller disengagement sensor (SR17), which is located in the cable that is full. ● The chute at the motor (M10), J261...developinghome-position sensor (SR11). If the sensor is defective, replace the main-drive assembly. 59.F0 ERROR The transfer unit is "0". has occurred. Replace the toner-collection unit. Disconnect the in the Troubleshooting menu. Perform the Alienation Motor test in the Component Tests menu in -line ...
Service Manual
Page 489
... Install the correct fuser. INFLATE FAILURE An error occurred during a firmware upgrade. Install supplies At least two supplies are fully seated. Install transfer unit The ITB is disabled. See Intermediate transfer correctly. Internal Disk Device Failure - be written to scan. Copy and send is either not installed or not installed Install the fuser...
... Install the correct fuser. INFLATE FAILURE An error occurred during a firmware upgrade. Install supplies At least two supplies are fully seated. Install transfer unit The ITB is disabled. See Intermediate transfer correctly. Internal Disk Device Failure - be written to scan. Copy and send is either not installed or not installed Install the fuser...
Service Manual
Page 491
... press any buttons. ENWW Control-panel messages 461 No action is loaded. Order a replacement print cartridge. Order Transfer Kit The transfer kit is near the end of pages indicated. cancel Performing upgrade The product is necessary. The product will continue...cartridge was installed, and the product previously used all genuine HP supplies. Performing Color Band Test The color-band test is being printed. Order a replacement fuser kit. Order toner collection unit The toner collection unit is necessary. No action is almost full. of its ...
... press any buttons. ENWW Control-panel messages 461 No action is loaded. Order a replacement print cartridge. Order Transfer Kit The transfer kit is near the end of pages indicated. cancel Performing upgrade The product is necessary. The product will continue...cartridge was installed, and the product previously used all genuine HP supplies. Performing Color Band Test The color-band test is being printed. Order a replacement fuser kit. Order toner collection unit The toner collection unit is necessary. No action is almost full. of its ...
Service Manual
Page 524
... the scanner glass. Clean the contacts of these examples. Solve image-quality problems This section helps you print in color or in a particular color. Poor primary charging bias contacts with the print cartridge and product. Poor developing bias contacts with the print cartridge ... depict letter-size paper that meets HP specifications, or running a cleaning page. Clean the contacts. Poor secondary transfer contacts with exist on the ITB unit and product. Cause Solution Poor contacts exist on the ITB unit and the product grounding unit. For ADF image-quality problems, ...
... the scanner glass. Clean the contacts of these examples. Solve image-quality problems This section helps you print in color or in a particular color. Poor primary charging bias contacts with the print cartridge and product. Poor developing bias contacts with the print cartridge ... depict letter-size paper that meets HP specifications, or running a cleaning page. Clean the contacts. Poor secondary transfer contacts with exist on the ITB unit and product. Cause Solution Poor contacts exist on the ITB unit and the product grounding unit. For ADF image-quality problems, ...
Service Manual
Page 526
...Fuser on the circumference of the ITB. Replace the print cartridge of the color that matches the defect. Scratches are present on the circumference of the photosensitive drum. See Intermediate transfer belt (ITB) on page 200. See Fuser on page 209. Use ...white lines appear. Clean the roller. See Intermediate transfer belt (ITB) on Replace the print cartridge of the ITB. See Intermediate transfer belt (ITB) on the fuser roller. Vertical white lines appear in all colors. The laser/scanner-unit mirror is malfunctioning. Horizontal scratches on page 209...
...Fuser on the circumference of the ITB. Replace the print cartridge of the color that matches the defect. Scratches are present on the circumference of the photosensitive drum. See Intermediate transfer belt (ITB) on page 200. See Fuser on page 209. Use ...white lines appear. Clean the roller. See Intermediate transfer belt (ITB) on Replace the print cartridge of the ITB. See Intermediate transfer belt (ITB) on the fuser roller. Vertical white lines appear in all colors. The laser/scanner-unit mirror is malfunctioning. Horizontal scratches on page 209...
Service Manual
Page 527
...color. The fuser roller is defective. The fuser control PCA is deformed or has Replace the fuser. Replace the fuser. If the problem remains after cleaning, check the contacts for damage. The laser/scanner unit is not fully fused to the paper. The toner is defective. See Secondary transfer...-supply is defective (no primary charging bias lower. See Laser/scanner assembly (Y/M) on page 325 or Laser/scanner assembly (C/Bk) on page 200. The secondary transfer roller is defective. Replace the secondary-transfer-roller. See Fuser on page 332. Replace the low-voltage...
...color. The fuser roller is defective. The fuser control PCA is deformed or has Replace the fuser. Replace the fuser. If the problem remains after cleaning, check the contacts for damage. The laser/scanner unit is not fully fused to the paper. The toner is defective. See Secondary transfer...-supply is defective (no primary charging bias lower. See Laser/scanner assembly (Y/M) on page 325 or Laser/scanner assembly (C/Bk) on page 200. The secondary transfer roller is defective. Replace the secondary-transfer-roller. See Fuser on page 332. Replace the low-voltage...
Service Manual
Page 528
...Intermediate transfer belt (ITB) on page 332. Replace the laser/scanner assembly. The fuser inlet guide is not uniformly pressing the source document against the flatbed glass. The ADF white backing is dirty. The product is defective. The laser/scanner unit is experiencing page skew. See Laser/...the registration assembly. Toner smears appear on page 212. See the "Text or graphics are warn, replace them. Problem Some color is incorrectly calibrated. Cause Solution The product is misregistered. Open the close the front door several times to feed multiple documents....
...Intermediate transfer belt (ITB) on page 332. Replace the laser/scanner assembly. The fuser inlet guide is not uniformly pressing the source document against the flatbed glass. The ADF white backing is dirty. The product is defective. The laser/scanner unit is experiencing page skew. See Laser/...the registration assembly. Toner smears appear on page 212. See the "Text or graphics are warn, replace them. Problem Some color is incorrectly calibrated. Cause Solution The product is misregistered. Open the close the front door several times to feed multiple documents....
Service Manual
Page 541
...-67912 Hard drive kit CC519-67904 Hard drive cable kit CC519-67905 Fax PCA CC456-60001 Fax cable kit CC519-67907 Toner collection unit kit CC468-67910 Pick/feed and separation pad kit CC468-67911 ITB kit CC468-67907 110V fuser kit CC519-67901 220V fuser kit ...CC519-67902 Duplex reverse guide kit CC468-67913 Secondary transfer roller kit CC468-67914 Secondary transfer assembly kit (duplex) CC468-67915 Fuser cleaning kit (letter) CC468-67919 Front door assembly and nameplate CC519-67916 500 sheet...
...-67912 Hard drive kit CC519-67904 Hard drive cable kit CC519-67905 Fax PCA CC456-60001 Fax cable kit CC519-67907 Toner collection unit kit CC468-67910 Pick/feed and separation pad kit CC468-67911 ITB kit CC468-67907 110V fuser kit CC519-67901 220V fuser kit ...CC519-67902 Duplex reverse guide kit CC468-67913 Secondary transfer roller kit CC468-67914 Secondary transfer assembly kit (duplex) CC468-67915 Fuser cleaning kit (letter) CC468-67919 Front door assembly and nameplate CC519-67916 500 sheet...