Service Manual
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... Face-down output assembly 250 Figure 103. Back side of printer and accessories: rear and left door 236 Figure 89. Attachment bracket, HP Color LaserJet 8550 MFP printer 227 Figure 78. Spring on the right upper door 238 Figure 91. Bottom of Figures 9 Screws on the face-up solenoid (1...Registration roller assembly (front 263 Figure 115. Front right cover 229 Figure 81. Connectors on right cover subassembly 240 Figure 93. Laser/scanner shield 247 Figure 99. Face-up exit assembly 260 Figure 112. Stopper hinges on upper left 226 Figure 77. Registration ...
... Face-down output assembly 250 Figure 103. Back side of printer and accessories: rear and left door 236 Figure 89. Attachment bracket, HP Color LaserJet 8550 MFP printer 227 Figure 78. Spring on the right upper door 238 Figure 91. Bottom of Figures 9 Screws on the face-up solenoid (1...Registration roller assembly (front 263 Figure 115. Front right cover 229 Figure 81. Connectors on right cover subassembly 240 Figure 93. Laser/scanner shield 247 Figure 99. Face-up exit assembly 260 Figure 112. Stopper hinges on upper left 226 Figure 77. Registration ...
Service Manual
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...Right cover with cover removed 270 Figure 122. Media size sensing PCAs 297 Figure 149. Controller board, HP Color LaserJet 8500 printer . 278 Figure 130. Cartridge motor 280 Figure 132. Developer/imaging drum bias supply, HP Color LaserJet 8550 printer 288 Figure 140. Front cover of Figures EN Lower air duct 285 Figure 137. Vertical transfer unit... (2 of printer with formatter pan removed 271 Figure 123. Connectors on the delivery drive assembly 286 Figure 138. Fan 2 275 Figure 127. Controller board, HP Color LaserJet 8550 MFP printer 277 Figure 129.
...Right cover with cover removed 270 Figure 122. Media size sensing PCAs 297 Figure 149. Controller board, HP Color LaserJet 8500 printer . 278 Figure 130. Cartridge motor 280 Figure 132. Developer/imaging drum bias supply, HP Color LaserJet 8550 printer 288 Figure 140. Front cover of Figures EN Lower air duct 285 Figure 137. Vertical transfer unit... (2 of printer with formatter pan removed 271 Figure 123. Connectors on the delivery drive assembly 286 Figure 138. Fan 2 275 Figure 127. Controller board, HP Color LaserJet 8550 MFP printer 277 Figure 129.
Service Manual
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... in this manual. Introduction Note This manual covers service topics for the following printers and their paper-handling optional accessories: HP Color LaserJet 8500 printer (base model) HP Color LaserJet 8500 N printer HP Color LaserJet 8500 DN printer HP Color LaserJet 8550 printer (base model) HP Color LaserJet 8550 N printer HP Color LaserJet 8550 DN printer HP Color LaserJet 8550 GN printer HP Color LaserJet 8550 MFP-print engine only Service topics for all service information related to these devices.
... in this manual. Introduction Note This manual covers service topics for the following printers and their paper-handling optional accessories: HP Color LaserJet 8500 printer (base model) HP Color LaserJet 8500 N printer HP Color LaserJet 8500 DN printer HP Color LaserJet 8550 printer (base model) HP Color LaserJet 8550 N printer HP Color LaserJet 8550 DN printer HP Color LaserJet 8550 GN printer HP Color LaserJet 8550 MFP-print engine only Service topics for all service information related to these devices.
Service Manual
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....0 A at 220 V Operating environment specifications Table 4. Electrical specifications Item Power requirements Power consumption (typical): During printing (b/w) During printing (color) During standby During Power Save mode During Off mode Minimum recommended circuit capacity for typical product 110-volt models 100 to 127 V ... less than 45 W less than 2 W 6.0 A at 120 V 220-volt models 220 to 10,000 feet) Note See the HP Color LaserJet 8550 MFP printer service manual for dimensions that include copy module, automatic document feeder, and 1,000-sheet input paper deck. 24 Chapter 1 -
....0 A at 220 V Operating environment specifications Table 4. Electrical specifications Item Power requirements Power consumption (typical): During printing (b/w) During printing (color) During standby During Power Save mode During Off mode Minimum recommended circuit capacity for typical product 110-volt models 100 to 127 V ... less than 45 W less than 2 W 6.0 A at 120 V 220-volt models 220 to 10,000 feet) Note See the HP Color LaserJet 8550 MFP printer service manual for dimensions that include copy module, automatic document feeder, and 1,000-sheet input paper deck. 24 Chapter 1 -
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Product information EN Note Space requirements See the HP Color LaserJet 8550 MFP printer service manual for space requirements for the copy module, automatic document feeder, and 1,000-sheet input paper deck. 290 mm 11 in 1404 mm ...
Product information EN Note Space requirements See the HP Color LaserJet 8550 MFP printer service manual for space requirements for the copy module, automatic document feeder, and 1,000-sheet input paper deck. 290 mm 11 in 1404 mm ...
Service Manual
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... (10/100 Base-TX), an internal hard disk, a printer/copy module stand, and a copy module. 40 Chapter 1 - HP Color LaserJet 8550 MFP The HP Color LaserJet 8550MFP comes standard with a 100-sheet tray 1, a 500-sheet tray 3, a printer stand, and 32 MB RAM. HP Color LaserJet 8550 N The HP Color LaserJet 8550N comes standard with a 100-sheet tray 1, a 500-sheet tray 2, a 500-sheet tray 3, a printer stand, 64...
... (10/100 Base-TX), an internal hard disk, a printer/copy module stand, and a copy module. 40 Chapter 1 - HP Color LaserJet 8550 MFP The HP Color LaserJet 8550MFP comes standard with a 100-sheet tray 1, a 500-sheet tray 3, a printer stand, and 32 MB RAM. HP Color LaserJet 8550 N The HP Color LaserJet 8550N comes standard with a 100-sheet tray 1, a 500-sheet tray 2, a 500-sheet tray 3, a printer stand, 64...
Service Manual
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... button at the top, right of the copy module after plugging the printer power cable into the right side of the copy module. See the HP Color LaserJet 8550 MFP printer user guide for more information. EN Printer Information 41 External views 7 1 8 2 9 10 3 4 11 5 6 12 Figure 3. Front view 1 Printer control panel (see page 80) 2 Left...
... button at the top, right of the copy module after plugging the printer power cable into the right side of the copy module. See the HP Color LaserJet 8550 MFP printer user guide for more information. EN Printer Information 41 External views 7 1 8 2 9 10 3 4 11 5 6 12 Figure 3. Front view 1 Printer control panel (see page 80) 2 Left...
Service Manual
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... the formatter board. the printer can have a hard disk installed if there is not a factoryinstalled internal hard drive mounted on HP Color LaserJet 8500 N, 8500 DN, 8550 N, 8550 DN, 8550 GN, and 8550 MFP models) 4 EIO slot 2 (shown with HP JetDirect internal print server) 5 Parallel IEEE-1284 interface port (C-size) 6 EIO slot 1 7 C-link connector Note Either EIO slot can...
... the formatter board. the printer can have a hard disk installed if there is not a factoryinstalled internal hard drive mounted on HP Color LaserJet 8500 N, 8500 DN, 8550 N, 8550 DN, 8550 GN, and 8550 MFP models) 4 EIO slot 2 (shown with HP JetDirect internal print server) 5 Parallel IEEE-1284 interface port (C-size) 6 EIO slot 1 7 C-link connector Note Either EIO slot can...
Service Manual
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... domestic environment this device must accept any interference received, including interference that the product Product Name: Model Number: Product Options: HP Color LaserJet 8550, 8550 N, 8550 DN, 8550 GN, 8550 MFP C7096A, C7097A, C7098A, C7099A, C7835A, C7836A ALL conforms to the following Product Specifications: Safety: IEC 950:1991+A1+A2...+A3+A4 / EN 60950:1992+A1+A2+A3+A4+A11 IEC 825-1:1993 / EN 60825-1:1994+A11 Class 1 (Laser/LED) ...
... domestic environment this device must accept any interference received, including interference that the product Product Name: Model Number: Product Options: HP Color LaserJet 8550, 8550 N, 8550 DN, 8550 GN, 8550 MFP C7096A, C7097A, C7098A, C7099A, C7835A, C7836A ALL conforms to the following Product Specifications: Safety: IEC 950:1991+A1+A2...+A3+A4 / EN 60950:1992+A1+A2+A3+A4+A11 IEC 825-1:1993 / EN 60825-1:1994+A11 Class 1 (Laser/LED) ...
Service Manual
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...Regulations Manager, Hewlett-Packard Company, P.O. Box 15 Mail Stop 160, Boise, ID 83707-0015 (Phone: 208-396-6000) Note See the HP Color LaserJet 8550 MFP printer Service Manual for Declarations of the FCC rules. DOC-3,000-sheet stacker DECLARATION OF CONFORMITY according to the following Directives and carries the CE... 950:1991+A1+A2+A3+A4+A11 / EN 60950:1992+A1+A2+A3+A4+A11 IEC 825-1:1993 / EN 60825-1:1994 Class 1 (Laser/LED) UL1950, Third Edition Additional Information: The product herewith complies with Part 15 of Conformity for the copy module, automatic document feeder, and...
...Regulations Manager, Hewlett-Packard Company, P.O. Box 15 Mail Stop 160, Boise, ID 83707-0015 (Phone: 208-396-6000) Note See the HP Color LaserJet 8550 MFP printer Service Manual for Declarations of the FCC rules. DOC-3,000-sheet stacker DECLARATION OF CONFORMITY according to the following Directives and carries the CE... 950:1991+A1+A2+A3+A4+A11 / EN 60950:1992+A1+A2+A3+A4+A11 IEC 825-1:1993 / EN 60825-1:1994 Class 1 (Laser/LED) UL1950, Third Edition Additional Information: The product herewith complies with Part 15 of Conformity for the copy module, automatic document feeder, and...
Service Manual
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... the print engine is generally accomplished by assembly-level replacement of the field-replaceable units. When repairing an HP Color LaserJet 8550 MFP printer, first isolate the location of the problem. Some mechanical assemblies can be ordered from HP's Service Materials Organization or Support Materials Europe. Accessories can be ordered from an authorized service or support...
... the print engine is generally accomplished by assembly-level replacement of the field-replaceable units. When repairing an HP Color LaserJet 8550 MFP printer, first isolate the location of the problem. Some mechanical assemblies can be ordered from HP's Service Materials Organization or Support Materials Europe. Accessories can be ordered from an authorized service or support...
Service Manual
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... in refilled cartridges. The print quality of HP LaserJet toner cartridges influences the customer's perception of HP Color LaserJet 8500 and 8550 models. Refilled toner cartridges While HP does not prohibit the use of refilled toner cartridges during the warranty period or while the printer is optional with the HP Color LaserJet 8550 MFP. EN Warranty 69 Refer to simplify replacement of...
... in refilled cartridges. The print quality of HP LaserJet toner cartridges influences the customer's perception of HP Color LaserJet 8500 and 8550 models. Refilled toner cartridges While HP does not prohibit the use of refilled toner cartridges during the warranty period or while the printer is optional with the HP Color LaserJet 8550 MFP. EN Warranty 69 Refer to simplify replacement of...
Service Manual
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See the HP Color LaserJet 8550 MFP printer Service Manual for descriptions of the various printer configurations. EN Verifying package contents 73 See Chapter 1 for package contents ... guide 5 Imaging drum 6 Printer control panel overlay (if applicable) 7 Media size labels 8 Left (face-up) output bin 9 An HP Color LaserJet 8500 (shown above), 8500 N, 8500 DN, 8550, 8550 N, 8550 DN, 8550 GN, or 8550 MFP printer. Contents of HP Color LaserJet 8550 MFP printers. Verifying package contents Verify that the following items were included from the factory: 4 5 1 6 9 7 2 8 3 Figure ...
See the HP Color LaserJet 8550 MFP printer Service Manual for descriptions of the various printer configurations. EN Verifying package contents 73 See Chapter 1 for package contents ... guide 5 Imaging drum 6 Printer control panel overlay (if applicable) 7 Media size labels 8 Left (face-up) output bin 9 An HP Color LaserJet 8500 (shown above), 8500 N, 8500 DN, 8550, 8550 N, 8550 DN, 8550 GN, or 8550 MFP printer. Contents of HP Color LaserJet 8550 MFP printers. Verifying package contents Verify that the following items were included from the factory: 4 5 1 6 9 7 2 8 3 Figure ...
Service Manual
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... = ENGLISH appears on . VALUE +, SELECT, and GO are in English. This message appears every time the printer is turned on the copy module. See the HP Color LaserJet 8550 MFP printer Service Manual for approximately one second, release SELECT. If you press GO without selecting a language, the printer brings itself online and all subsequent messages...
... = ENGLISH appears on . VALUE +, SELECT, and GO are in English. This message appears every time the printer is turned on the copy module. See the HP Color LaserJet 8550 MFP printer Service Manual for approximately one second, release SELECT. If you press GO without selecting a language, the printer brings itself online and all subsequent messages...
Service Manual
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... DIMMs with the following amounts of memory installed in slots 1 and 2: l 16-MB DIMMs in the base model l 32-MB DIMMs in the N, DN, and MFP models (2 x 32 = 64) l 64-MB DIMMs in the GN model (2 x 64 = 128) In all printer models, slots 3 through 8 are available for additional DIMMs.... the following amounts of memory installed in slots 1 and 2: l 16-MB DIMMs in the base and N models l 32-MB DIMMs in the DN model The HP Color LaserJet 8550 printer comes with the same amount of DRAM are not supported. 7 5 3 1 8 6 4 2 Figure 15. DIMM slot configuration o DRAM DIMMs must be installed as pairs (...
... DIMMs with the following amounts of memory installed in slots 1 and 2: l 16-MB DIMMs in the base model l 32-MB DIMMs in the N, DN, and MFP models (2 x 32 = 64) l 64-MB DIMMs in the GN model (2 x 64 = 128) In all printer models, slots 3 through 8 are available for additional DIMMs.... the following amounts of memory installed in slots 1 and 2: l 16-MB DIMMs in the base and N models l 32-MB DIMMs in the DN model The HP Color LaserJet 8550 printer comes with the same amount of DRAM are not supported. 7 5 3 1 8 6 4 2 Figure 15. DIMM slot configuration o DRAM DIMMs must be installed as pairs (...
Service Manual
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... indicator appears on the configuration page, on the control panel for the network administrator). Resetting the HP TonerGauge After a new toner cartridge is no longer displayed on HP Color LaserJet 8550 MFP printers. When you have been replaced. 6 Press GO to estimate how much toner is left in the cartridges to save the selection. 5 Repeat steps...
... indicator appears on the configuration page, on the control panel for the network administrator). Resetting the HP TonerGauge After a new toner cartridge is no longer displayed on HP Color LaserJet 8550 MFP printers. When you have been replaced. 6 Press GO to estimate how much toner is left in the cartridges to save the selection. 5 Repeat steps...
Service Manual
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Locking pins 4 Roll the printer off of the holes. 32 Figure 78. Attachment bracket, HP Color LaserJet 8550 MFP printer 3 On each side at the bottom of the rack, rotate the locking pins (callout 3) until they slide out of the rack. EN Doors and covers 227 HP Color LaserJet 8500 MFP printer-separating the printer from the frame 1 Remove two screws (callout 1) from the attachment cover on the left side of the printer to release the attachment cover. 2 Remove two screws (callout 2) from the attachment bracket. 12 2 Figure 77.
Locking pins 4 Roll the printer off of the holes. 32 Figure 78. Attachment bracket, HP Color LaserJet 8550 MFP printer 3 On each side at the bottom of the rack, rotate the locking pins (callout 3) until they slide out of the rack. EN Doors and covers 227 HP Color LaserJet 8500 MFP printer-separating the printer from the frame 1 Remove two screws (callout 1) from the attachment cover on the left side of the printer to release the attachment cover. 2 Remove two screws (callout 2) from the attachment bracket. 12 2 Figure 77.
Service Manual
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b Remove three screws (callout 2) from inside the opening; Plate, HP Color LaserJet 8550 MFP printer EN Doors and covers 243 the plate remains attached to disconnect the video I/O connector. Rear cover 1 For HP Color LaserJet 8550 MFP printer models, complete the following steps before continuing to step 2 on the following page: a Release two thumb screws (callout 1) to the rear cover. 12 2 Figure 95.
b Remove three screws (callout 2) from inside the opening; Plate, HP Color LaserJet 8550 MFP printer EN Doors and covers 243 the plate remains attached to disconnect the video I/O connector. Rear cover 1 For HP Color LaserJet 8550 MFP printer models, complete the following steps before continuing to step 2 on the following page: a Release two thumb screws (callout 1) to the rear cover. 12 2 Figure 95.
Service Manual
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Compare the controller board to the same part from an HP Color LaserJet 8500 printer, in figure 129 on the lower left side of the rear of connectors from one printer to another. EN Rear assemblies 277 Shown in figure 128 is located on page 278. 12 Figure 128. Controller board The controller board is a controller board in an HP Color LaserJet 8550 MFP printer and includes the ECO board cable (callout 1). Controller board, HP Color LaserJet 8550 MFP printer Note Controller board removal procedures, which begin on page 278, change only in the locations of the printer.
Compare the controller board to the same part from an HP Color LaserJet 8500 printer, in figure 129 on the lower left side of the rear of connectors from one printer to another. EN Rear assemblies 277 Shown in figure 128 is located on page 278. 12 Figure 128. Controller board The controller board is a controller board in an HP Color LaserJet 8550 MFP printer and includes the ECO board cable (callout 1). Controller board, HP Color LaserJet 8550 MFP printer Note Controller board removal procedures, which begin on page 278, change only in the locations of the printer.
Service Manual
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... to ammonia gas such as described in good condition. Pre-troubleshooting checklist Note Before troubleshooting any specific software. For HP Color LaserJet 8550 MFP printers, compare printed pages to copied pages to troubleshoot copy module and document feeder problems. l The printer driver ...is not associated with the network. Use the HP Color LaserJet 8550 MFP printer service manual to determine whether the problem is responsible for software-related problems. EN Pre-troubleshooting checklist 367 The...
... to ammonia gas such as described in good condition. Pre-troubleshooting checklist Note Before troubleshooting any specific software. For HP Color LaserJet 8550 MFP printers, compare printed pages to copied pages to troubleshoot copy module and document feeder problems. l The printer driver ...is not associated with the network. Use the HP Color LaserJet 8550 MFP printer service manual to determine whether the problem is responsible for software-related problems. EN Pre-troubleshooting checklist 367 The...