Service Manual
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... Paper Handling Menu 85 Configuration Menu 88 Printing Menu 89 I/O Menu 91 I/O Menu 91 Resets Menu 92 Color Adjust Menu 92 Service Mode Menu 93 Replacement frequencies for printer consumables . . 119 Subtractive color absorption 138 Subtractive color mixing 139 Additive color mixing 140 Fusing temperatures 166 Printer motor and heater names and descriptions . . 171 Fan...
... Paper Handling Menu 85 Configuration Menu 88 Printing Menu 89 I/O Menu 91 I/O Menu 91 Resets Menu 92 Color Adjust Menu 92 Service Mode Menu 93 Replacement frequencies for printer consumables . . 119 Subtractive color absorption 138 Subtractive color mixing 139 Additive color mixing 140 Fusing temperatures 166 Printer motor and heater names and descriptions . . 171 Fan...
Service Manual
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... 82 Information Menu 83 Proof and Print Menu (HP Color LaserJet 8500) . . . . . 84 Quick Copy Jobs Menu (HP Color LaserJet 8550) . . . 84 Private/Stored Jobs Menu (HP Color LaserJet 8550) . 85 Paper Handling Menu 85 Configuration Menu 88 Printing Menu 89 Duplex Registration Menu (HP Color LaserJet 8550) . 91 I/O Menu 91 Resets Menu 92 Color Adjust Menu 92 Service Mode Menu 93 EN Chapter...
... 82 Information Menu 83 Proof and Print Menu (HP Color LaserJet 8500) . . . . . 84 Quick Copy Jobs Menu (HP Color LaserJet 8550) . . . 84 Private/Stored Jobs Menu (HP Color LaserJet 8550) . 85 Paper Handling Menu 85 Configuration Menu 88 Printing Menu 89 Duplex Registration Menu (HP Color LaserJet 8550) . 91 I/O Menu 91 Resets Menu 92 Color Adjust Menu 92 Service Mode Menu 93 EN Chapter...
Service Manual
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Selecting the display language 97 Installing the consumables 98 Configuring input trays 103 Selecting the mode for tray 1 103 Configuring media type and size 104 Verifying the printer is installed correctly 105 Configuration page 105 EIO page 105 Verifying DIMM installation 106 Duplex registration (HP Color LaserJet 8550 107 Booklet printing 109 HP TonerGauge (HP Color LaserJet 8550 110 Resetting the HP TonerGauge 110 72 Chapter 3 - Operational overview EN
Selecting the display language 97 Installing the consumables 98 Configuring input trays 103 Selecting the mode for tray 1 103 Configuring media type and size 104 Verifying the printer is installed correctly 105 Configuration page 105 EIO page 105 Verifying DIMM installation 106 Duplex registration (HP Color LaserJet 8550 107 Booklet printing 109 HP TonerGauge (HP Color LaserJet 8550 110 Resetting the HP TonerGauge 110 72 Chapter 3 - Operational overview EN
Service Manual
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...= -6 ... 0 ... +6 BLACK DETAIL VALUE= -6 ... 0 ... +6 CYAN DETAIL VALUE= -6 ... 0 ... +6 MAGENTA DETAIL VALUE= -6 ... 0 ... +6 YELLOW DETAIL VALUE= -6 ... 0 ... +6 Description/action See page 457 for information about using this menu. 92 Chapter 3 - Resets I /O Menu and Color Adjust Menu values do not change. I /O to indicate that a new transfer kit has been installed.
...= -6 ... 0 ... +6 BLACK DETAIL VALUE= -6 ... 0 ... +6 CYAN DETAIL VALUE= -6 ... 0 ... +6 MAGENTA DETAIL VALUE= -6 ... 0 ... +6 YELLOW DETAIL VALUE= -6 ... 0 ... +6 Description/action See page 457 for information about using this menu. 92 Chapter 3 - Resets I /O Menu and Color Adjust Menu values do not change. I /O to indicate that a new transfer kit has been installed.
Service Manual
Page 96
... the default media size in the Printing Menu also changes to F). See ENGINE SETTING 1. If the NVRAM SETTING menu is used to align the various color planes. Clears the printer event log. Press SELECT to 100 percent. Operational overview EN Enter these values only when replacing the control board. ITEM and... NO* YES * Default setting. Description/action Number of varying checksum values. The registration values of the printer control panel and to 100 percent. The cold reset (CR) paper size is localized.
... the default media size in the Printing Menu also changes to F). See ENGINE SETTING 1. If the NVRAM SETTING menu is used to align the various color planes. Clears the printer event log. Press SELECT to 100 percent. Operational overview EN Enter these values only when replacing the control board. ITEM and... NO* YES * Default setting. Description/action Number of varying checksum values. The registration values of the printer control panel and to 100 percent. The cold reset (CR) paper size is localized.
Service Manual
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... supported by the formatter board and functioning properly. The fault log is cleared when the printer is also posted to exit the formatter diagnostics and reset the printer. Press SELECT to continue. Then, error is turned off and on to the fault log. This test also ensures that occurred while formatter...
... supported by the formatter board and functioning properly. The fault log is cleared when the printer is also posted to exit the formatter diagnostics and reset the printer. Press SELECT to continue. Then, error is turned off and on to the fault log. This test also ensures that occurred while formatter...
Service Manual
Page 112
...reset the HP TonerGauge: If the NEW TONER CARTRIDGE=NO message is no longer displayed on the status tab of the toner cartridges, then press MENU repeatedly until YES appears. 2 Press SELECT to exit the menu. 110 Chapter 3 - VALUE + until NEW TONER CARTRIDGE=NO appears. 1 Press - HP TonerGauge (HP Color LaserJet... 8550) Note Note The HP TonerGauge feature is not enabled on the control panel for the network administrator). When you have been replaced...
...reset the HP TonerGauge: If the NEW TONER CARTRIDGE=NO message is no longer displayed on the status tab of the toner cartridges, then press MENU repeatedly until YES appears. 2 Press SELECT to exit the menu. 110 Chapter 3 - VALUE + until NEW TONER CARTRIDGE=NO appears. 1 Press - HP TonerGauge (HP Color LaserJet... 8550) Note Note The HP TonerGauge feature is not enabled on the control panel for the network administrator). When you have been replaced...
Service Manual
Page 125
... left, making sure it clicks into place. 19 Close the front door and turn the printer on the printer control panel display. Press MENU until RESET TRANSFER LIFE COUNT appears. If it clicks into place. 17 Close the upper right door. b. d. EN Printer consumables 123 Then go to step 22. 21... If the printer control panel does not display the message: a. Press GO to bring the printer online and reset the transfer drum life count. The printer control panel should display the message PRESS SELECT IF TRANSFER IS NEW. Press ITEM until...
... left, making sure it clicks into place. 19 Close the front door and turn the printer on the printer control panel display. Press MENU until RESET TRANSFER LIFE COUNT appears. If it clicks into place. 17 Close the upper right door. b. d. EN Printer consumables 123 Then go to step 22. 21... If the printer control panel does not display the message: a. Press GO to bring the printer online and reset the transfer drum life count. The printer control panel should display the message PRESS SELECT IF TRANSFER IS NEW. Press ITEM until...
Service Manual
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... message, go to step 10. b. c. Printer maintenance EN Remove the rollers (upper roller first) and replace them (lower roller first). Press ITEM until RESETS MENU appears on . 9 The printer control panel should display the message PRESS SELECT IF FUSER IS NEW. Press SELECT to step 12. 11 If the... fuser life count. Then go to step 11. 10 When the printer control panel displays the message, press SELECT to bring the printer online and reset the fuser life count. d. 7 7 Locate the two rollers. Note Press down on the lower roller while replacing the upper one. 8 Close the vertical...
... message, go to step 10. b. c. Printer maintenance EN Remove the rollers (upper roller first) and replace them (lower roller first). Press ITEM until RESETS MENU appears on . 9 The printer control panel should display the message PRESS SELECT IF FUSER IS NEW. Press SELECT to step 12. 11 If the... fuser life count. Then go to step 11. 10 When the printer control panel displays the message, press SELECT to bring the printer online and reset the fuser life count. d. 7 7 Locate the two rollers. Note Press down on the lower roller while replacing the upper one. 8 Close the vertical...
Service Manual
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... contains a memory device. The controller board counts the number of printed images after the waste toner full warning. Consumable detection mechanisms Note For information on resetting the consumable life counts, see table 24 on the printer control panel. The controller board senses the imaging drum life expiration based on the printer...
... contains a memory device. The controller board counts the number of printed images after the waste toner full warning. Consumable detection mechanisms Note For information on resetting the consumable life counts, see table 24 on the printer control panel. The controller board senses the imaging drum life expiration based on the printer...
Service Manual
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...printed images after the transfer kit out signal; Printing can continue after the transfer kit low warning. however, print quality might be reset in the color toner cartridge. PS621 consists of the cartridge. The light from the light emitter enters the detection window at the stirring plate cleans...the TONER LOW setting on the printer control panel. The formatter counts the number of images printed is replaced, the transfer count must reset the transfer count when a new transfer kit is determined by both the page and image counts. Printing can continue after the transfer ...
...printed images after the transfer kit out signal; Printing can continue after the transfer kit low warning. however, print quality might be reset in the color toner cartridge. PS621 consists of the cartridge. The light from the light emitter enters the detection window at the stirring plate cleans...the TONER LOW setting on the printer control panel. The formatter counts the number of images printed is replaced, the transfer count must reset the transfer count when a new transfer kit is determined by both the page and image counts. Printing can continue after the transfer ...
Service Manual
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... 1 and detects the last page. Operation after transmission is the same as for tray pick-up except that no page before the next image is reset on to the formatter and stops the printer. • Tray 1 last-page detection - The tray 1 last-page sensor (PS19) monitors the rotation of operation EN...
... 1 and detects the last page. Operation after transmission is the same as for tray pick-up except that no page before the next image is reset on to the formatter and stops the printer. • Tray 1 last-page detection - The tray 1 last-page sensor (PS19) monitors the rotation of operation EN...
Service Manual
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... descriptions Name SW1 SW201 SW202 SW641 SW642 SW644 SW671 SW672 SW673 SW1601 SW1602 SW1603 SW1604 SW1601 SW1602 SW1603 SW1604 Description Power switch Test-print switch Reset switch Right cover switch Imaging-drum switch Black toner cartridge switch Delivery cover/front cover switch Toner cartridge cover switch Carousel-button switch Tray 3 paper...
... descriptions Name SW1 SW201 SW202 SW641 SW642 SW644 SW671 SW672 SW673 SW1601 SW1602 SW1603 SW1604 SW1601 SW1602 SW1603 SW1604 Description Power switch Test-print switch Reset switch Right cover switch Imaging-drum switch Black toner cartridge switch Delivery cover/front cover switch Toner cartridge cover switch Carousel-button switch Tray 3 paper...
Service Manual
Page 256
Formatter board 3 Pull the formatter board out of the formatter pan. Removal and replacement EN Use this page to reset the NVRAM values that will be repaired or replaced, remove the hard drive and retain it to reattach to generate one (see page 415). Formatter ...
Formatter board 3 Pull the formatter board out of the formatter pan. Removal and replacement EN Use this page to reset the NVRAM values that will be repaired or replaced, remove the hard drive and retain it to reattach to generate one (see page 415). Formatter ...
Service Manual
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... difference is due to match those found on the sticker inside the front cover. EN Left assemblies 255 Look at the following NVRAM values, and reset the NVRAM values to check sum variation and is being replaced as well) • Transfer kit count (percentage of life remaining) • Fuser kit count...
... difference is due to match those found on the sticker inside the front cover. EN Left assemblies 255 Look at the following NVRAM values, and reset the NVRAM values to check sum variation and is being replaced as well) • Transfer kit count (percentage of life remaining) • Fuser kit count...
Service Manual
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...This page can be used to the left (callout 2), and pull the controller board straight out. Hint All 25 connectors are keyed. Controller board, HP Color LaserJet 8500 6 Push the white plastic holding tab in , the pins on the back connector must be lost if the controller board is replaced. 2 Remove... Remove the formatter board and formatter pan (see page 415). Notes about reinstalling: When putting the controller board back in the upper left corner to reset the page count values that will be lined up or you might damage the pins. 278 Chapter 6 - Also, it is easier to generate one (...
...This page can be used to the left (callout 2), and pull the controller board straight out. Hint All 25 connectors are keyed. Controller board, HP Color LaserJet 8500 6 Push the white plastic holding tab in , the pins on the back connector must be lost if the controller board is replaced. 2 Remove... Remove the formatter board and formatter pan (see page 415). Notes about reinstalling: When putting the controller board back in the upper left corner to reset the page count values that will be lined up or you might damage the pins. 278 Chapter 6 - Also, it is easier to generate one (...
Service Manual
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... 415 Continuous configuration page 418 Demonstration page 418 Event log 419 Service mode engine diagnostics 420 Disabling interlocks 425 Service mode formatter diagnostics 430 Cold reset 431 Fault log 432 Paper path troubleshooting 433 General paper path checklist 433 Wrinkled pages 433 Sealed envelopes 434 Media jams 434 Image formation troubleshooting...
... 415 Continuous configuration page 418 Demonstration page 418 Event log 419 Service mode engine diagnostics 420 Disabling interlocks 425 Service mode formatter diagnostics 430 Cold reset 431 Fault log 432 Paper path troubleshooting 433 General paper path checklist 433 Wrinkled pages 433 Sealed envelopes 434 Media jams 434 Image formation troubleshooting...
Service Manual
Page 373
... the EIO accessory is seated properly. 4 Turn the printer off and on to the EIO ports and that a beam detect laser scanner error has occurred on to reset it. 5 If possible, print to another network printer to verify the network is working properly. Numbered printer messages (continued) 30... failure detection See DISK DEVICE FAILURE in VTU is initializing. See CLEAR INPUT DEVICE JAM in the print buffer will reprint and continue. HP EIO ERROR Event log message: 40.00.00 Description: An EIO accessory connection has been abnormally broken while transferring data from the printer....
... the EIO accessory is seated properly. 4 Turn the printer off and on to the EIO ports and that a beam detect laser scanner error has occurred on to reset it. 5 If possible, print to another network printer to verify the network is working properly. Numbered printer messages (continued) 30... failure detection See DISK DEVICE FAILURE in VTU is initializing. See CLEAR INPUT DEVICE JAM in the print buffer will reprint and continue. HP EIO ERROR Event log message: 40.00.00 Description: An EIO accessory connection has been abnormally broken while transferring data from the printer....
Service Manual
Page 375
... (continued) 49. If the wiring is normal, replace the fuser kit. 4 Reconnect connector J222 on the controller board and connector J26 on to reset the printer. 3 Remove all EIO cards and reinstall them to ensure they are seated correctly. 4 If using a parallel connection, verify that the cable ...the fuser is completely seated inside the in the fuser. printer. 2 Turn the printer off and on to reset the printer. 3 Turn the printer off and on the controller board up to reset the printer. 2 Verify the fuser is completely seated inside the printer. 3 Check for media jams in the...
... (continued) 49. If the wiring is normal, replace the fuser kit. 4 Reconnect connector J222 on the controller board and connector J26 on to reset the printer. 3 Remove all EIO cards and reinstall them to ensure they are seated correctly. 4 If using a parallel connection, verify that the cable ...the fuser is completely seated inside the in the fuser. printer. 2 Turn the printer off and on to reset the printer. 3 Turn the printer off and on the controller board up to reset the printer. 2 Verify the fuser is completely seated inside the printer. 3 Check for media jams in the...
Service Manual
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... 50.00.03 Description: Indicates that a high temperature error has occurred in the fuser. Action: 1 Turn the printer off and on to reset the printer. 2 Verify the fuser is completely seated inside the printer. 3 Reconnect connector J222 on the controller board, connector J26 on the ... 5 Replace the power supply. 6 Replace the controller board. 374 Chapter 7 - Place a flat blade of a screwdriver between the two wires of C259 to reset the printer. 2 Verify the fuser is completely seated inside the printer. 3 Replace the fuser kit. 4 Replace the power supply. 5 Replace the controller board...
... 50.00.03 Description: Indicates that a high temperature error has occurred in the fuser. Action: 1 Turn the printer off and on to reset the printer. 2 Verify the fuser is completely seated inside the printer. 3 Reconnect connector J222 on the controller board, connector J26 on the ... 5 Replace the power supply. 6 Replace the controller board. 374 Chapter 7 - Place a flat blade of a screwdriver between the two wires of C259 to reset the printer. 2 Verify the fuser is completely seated inside the printer. 3 Replace the fuser kit. 4 Replace the power supply. 5 Replace the controller board...