Service Manual
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...24 Site requirements 27 Media requirements 29 Identification (model and serial numbers 38 Printer Information 39 Safety information 46 2 Service approach Chapter contents 59 Introduction 61 ...printer to the network 76 Changing the printer control panel overlay 79 Printer control panel layout 80 Menu maps 82 Selecting the display language 97 Installing the consumables 98 Configuring input trays 103 Verifying the printer is installed correctly 105 Verifying DIMM installation 106 Duplex registration (HP Color LaserJet 8550 107 Booklet printing 109 HP TonerGauge (HP Color LaserJet...
...24 Site requirements 27 Media requirements 29 Identification (model and serial numbers 38 Printer Information 39 Safety information 46 2 Service approach Chapter contents 59 Introduction 61 ...printer to the network 76 Changing the printer control panel overlay 79 Printer control panel layout 80 Menu maps 82 Selecting the display language 97 Installing the consumables 98 Configuring input trays 103 Verifying the printer is installed correctly 105 Verifying DIMM installation 106 Duplex registration (HP Color LaserJet 8550 107 Booklet printing 109 HP TonerGauge (HP Color LaserJet...
Service Manual
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... 118 5 Theory of operation Chapter contents 133 Introduction 135 Color theory 138 Image formation 141 Consumable detection mechanisms 154 Electrical systems 164 Mechanical systems 169 Paper path 178 Printer timing 192 EPH controller board 199 Duplexer 199 2,000-sheet input unit 199 Multi-bin mailbox 205 3,000-sheet stapler/stacker 211 6 Removal...
... 118 5 Theory of operation Chapter contents 133 Introduction 135 Color theory 138 Image formation 141 Consumable detection mechanisms 154 Electrical systems 164 Mechanical systems 169 Paper path 178 Printer timing 192 EPH controller board 199 Duplexer 199 2,000-sheet input unit 199 Multi-bin mailbox 205 3,000-sheet stapler/stacker 211 6 Removal...
Service Manual
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7 Troubleshooting Chapter contents 363 Pre-troubleshooting checklist 367 Printer message troubleshooting 368 Aids to troubleshooting 415 Paper path troubleshooting 433 Image formation troubleshooting 438 Image defects troubleshooting 441 Color balance adjustment 457 Repetitive defects troubleshooting 462 Repetitive defects troubleshooting 463 2,000-sheet input unit troubleshooting 469 Multi-bin mailbox troubleshooting 477 3,000-sheet...
7 Troubleshooting Chapter contents 363 Pre-troubleshooting checklist 367 Printer message troubleshooting 368 Aids to troubleshooting 415 Paper path troubleshooting 433 Image formation troubleshooting 438 Image defects troubleshooting 441 Color balance adjustment 457 Repetitive defects troubleshooting 462 Repetitive defects troubleshooting 463 2,000-sheet input unit troubleshooting 469 Multi-bin mailbox troubleshooting 477 3,000-sheet...
Service Manual
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...Figure 15. Figure 19. Figure 21. Figure 25. Figure 28. Figure 30. Figure 32. Figure 36. Space requirements 28 Example of printer model number and serial number label (110 V and 220 V 38 Front view 41 Rear view 42 Formatter assemblies 43 Media-handling accessories ... 5. Figure 12. Figure 16. Figure 14. Figure 33. Figure 3. List of imaging drum 144 Black toner cartridge (left) and color toner cartridge (right) development 145 Primary transfer 146 Post charging 147 Secondary transfer 148 Separation 149 Cleaning roller charging 150 Transfer drum cleaning 151...
...Figure 15. Figure 19. Figure 21. Figure 25. Figure 28. Figure 30. Figure 32. Figure 36. Space requirements 28 Example of printer model number and serial number label (110 V and 220 V 38 Front view 41 Rear view 42 Formatter assemblies 43 Media-handling accessories ... 5. Figure 12. Figure 16. Figure 14. Figure 33. Figure 3. List of imaging drum 144 Black toner cartridge (left) and color toner cartridge (right) development 145 Primary transfer 146 Post charging 147 Secondary transfer 148 Separation 149 Cleaning roller charging 150 Transfer drum cleaning 151...
Service Manual
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... detection 157 Color toner lever detection 158 Density sensor 160 Transfer belt control 161 Cleaning roller control 162 Carousel control 163 Power distribution circuit diagram 164 Power Save circuit diagram 165 High-voltage power supply circuit 168 Laser/scanner 170 Printer motors and ...up 181 Tray 1 pick-up 183 Printer sensors 184 Printer switches 186 Printer clutches and solenoids 189 Fusing and delivery unit 191 Timing chart for WAIT period (1 of 2 193 Timing chart for WAIT period (2 of 2 194 Timing chart, printing full-color letter-sized page (1 of 2 195...
... detection 157 Color toner lever detection 158 Density sensor 160 Transfer belt control 161 Cleaning roller control 162 Carousel control 163 Power distribution circuit diagram 164 Power Save circuit diagram 165 High-voltage power supply circuit 168 Laser/scanner 170 Printer motors and ...up 181 Tray 1 pick-up 183 Printer sensors 184 Printer switches 186 Printer clutches and solenoids 189 Fusing and delivery unit 191 Timing chart for WAIT period (1 of 2 193 Timing chart for WAIT period (2 of 2 194 Timing chart, printing full-color letter-sized page (1 of 2 195...
Service Manual
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... 83. Screws on right cover subassembly 240 Figure 93. Connectors on formatter board 256 Figure 107. Plate, HP Color LaserJet 8550 MFP printer 243 Figure 96. Bottom of printer and accessories: top, front, and right 225 Figure 76. Laser/scanner shield 247 Figure 99. Face-down output assembly 250 Figure 103. Face-down exit sensor rail...
... 83. Screws on right cover subassembly 240 Figure 93. Connectors on formatter board 256 Figure 107. Plate, HP Color LaserJet 8550 MFP printer 243 Figure 96. Bottom of printer and accessories: top, front, and right 225 Figure 76. Laser/scanner shield 247 Figure 99. Face-down output assembly 250 Figure 103. Face-down exit sensor rail...
Service Manual
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...Figure 152. Paper pick-up assembly 306 Figure 156. Controller board, HP Color LaserJet 8550 MFP printer 277 Figure 129. Access to main gear assembly 287 Figure 139. Developer/imaging drum bias supply, HP Color LaserJet 8550 printer 288 Figure 140. Cleaning roller HV module 292 Figure 144. Screw... of 2 269 Figure 121. Formatter pan 272 Figure 124. Fan 2 275 Figure 127. Power supply 276 Figure 128. Controller board, HP Color LaserJet 8500 printer . 278 Figure 130. ECO board 279 Figure 131. Fans 1 and 2 housing assemblies 283 Figure 135. Screws on the delivery drive...
...Figure 152. Paper pick-up assembly 306 Figure 156. Controller board, HP Color LaserJet 8550 MFP printer 277 Figure 129. Access to main gear assembly 287 Figure 139. Developer/imaging drum bias supply, HP Color LaserJet 8550 printer 288 Figure 140. Cleaning roller HV module 292 Figure 144. Screw... of 2 269 Figure 121. Formatter pan 272 Figure 124. Fan 2 275 Figure 127. Power supply 276 Figure 128. Controller board, HP Color LaserJet 8500 printer . 278 Figure 130. ECO board 279 Figure 131. Fans 1 and 2 housing assemblies 283 Figure 135. Screws on the delivery drive...
Service Manual
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...Right upper cover detection interlock 425 Figure 215. Front cover/delivery cover detection interlocks . . . 427 Figure 219. Laser shutters 428 Figure 220. Color-plane registration 443 Figure 225. Multi-bin mailbox power supply test mode switch. . 477 Figure 239. LED PCA ...sheet input unit 471 Figure 237. Developer streak 444 Figure 226. Rear view of an HP Color LaserJet 8550 printer configuration page 417 Figure 214. Stapler removal (3 of an HP Color LaserJet 8500 printer configuration page 417 Figure 213. Flipper ribbon cable removal 359 Figure 210. Rain 445 Figure...
...Right upper cover detection interlock 425 Figure 215. Front cover/delivery cover detection interlocks . . . 427 Figure 219. Laser shutters 428 Figure 220. Color-plane registration 443 Figure 225. Multi-bin mailbox power supply test mode switch. . 477 Figure 239. LED PCA ...sheet input unit 471 Figure 237. Developer streak 444 Figure 226. Rear view of an HP Color LaserJet 8550 printer configuration page 417 Figure 214. Stapler removal (3 of an HP Color LaserJet 8500 printer configuration page 417 Figure 213. Flipper ribbon cable removal 359 Figure 210. Rain 445 Figure...
Service Manual
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... 264. Paper pick-up assembly (1 of 3 546 Figure 267. Multi-bin mailbox components (1 of 4 506 Figure 246. Error format for tray 2 (HP Color LaserJet 8550 base model only) . 519 Figure 250. General printer circuit diagram (3 of 3 564 Figure 281. Major assembly locations (2 of 2 556 Figure 276. Internal cover assembly 526 Figure 254. Delivery assembly...
... 264. Paper pick-up assembly (1 of 3 546 Figure 267. Multi-bin mailbox components (1 of 4 506 Figure 246. Error format for tray 2 (HP Color LaserJet 8550 base model only) . 519 Figure 250. General printer circuit diagram (3 of 3 564 Figure 281. Major assembly locations (2 of 2 556 Figure 276. Internal cover assembly 526 Figure 254. Delivery assembly...
Service Manual
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... 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 operation 177 Feed speeds based...
... 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 operation 177 Feed speeds based...
Service Manual
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...Table 64. Paper-size detection switches 202 Multi-bin mailbox sensors, switches, motors, and controller board PCA 209 Numbered printer messages 368 Unnumbered printer messages 388 Sensor monitor test 424 Media jam detection 436 Neutral axis adjustments 461 Status LED on the 2,000-sheet... in the stapler/stacker 499 Accessories and consumables 512 Miscellaneous parts 514 Printer covers and doors (1 of 4)-Filler panel for tray 2 519 Printer doors and covers (2 of 4 521 Printer doors and covers (3 of 4 523 Printer covers and doors (4 of 4 525 Internal cover assembly parts 527 ...
...Table 64. Paper-size detection switches 202 Multi-bin mailbox sensors, switches, motors, and controller board PCA 209 Numbered printer messages 368 Unnumbered printer messages 388 Sensor monitor test 424 Media jam detection 436 Neutral axis adjustments 461 Status LED on the 2,000-sheet... in the stapler/stacker 499 Accessories and consumables 512 Miscellaneous parts 514 Printer covers and doors (1 of 4)-Filler panel for tray 2 519 Printer doors and covers (2 of 4 521 Printer doors and covers (3 of 4 523 Printer covers and doors (4 of 4 525 Internal cover assembly parts 527 ...
Service Manual
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... 22 Specifications 24 Electrical specifications 24 Operating environment specifications 24 Acoustic emission specifications 25 Printer dimensions 25 Consumable storage specifications 26 Site requirements 27 General guidelines 27 Space requirements 28 Media requirements 29 Selecting media 29 Storing media 30 Media ...
... 22 Specifications 24 Electrical specifications 24 Operating environment specifications 24 Acoustic emission specifications 25 Printer dimensions 25 Consumable storage specifications 26 Site requirements 27 General guidelines 27 Space requirements 28 Media requirements 29 Selecting media 29 Storing media 30 Media ...
Service Manual
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Printer Information 39 Configurations 39 External views 41 Formatter assemblies 43 Media-handling accessories and options 44 Safety information 46 FCC regulations 46 Canadian DOC regulations 46 Declarations of conformity 47 VCCI statement (Japan)-8500 models 54 VCCI statement (Japan)-8550 models 54 EMI statement (Korea)-8500 models 54 EMI statement (Korea)-8550 models 54 Laser safety statement 55 Laser statement for Finland 56 Product information sheet 57 Toner safety 57 Material Safety Data Sheet (MSDS 57 Ozone safety 58 20 Chapter 1 - Product information EN
Printer Information 39 Configurations 39 External views 41 Formatter assemblies 43 Media-handling accessories and options 44 Safety information 46 FCC regulations 46 Canadian DOC regulations 46 Declarations of conformity 47 VCCI statement (Japan)-8500 models 54 VCCI statement (Japan)-8550 models 54 EMI statement (Korea)-8500 models 54 EMI statement (Korea)-8550 models 54 Laser safety statement 55 Laser statement for Finland 56 Product information sheet 57 Toner safety 57 Material Safety Data Sheet (MSDS 57 Ozone safety 58 20 Chapter 1 - Product information EN
Service Manual
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... this manual. EN Introduction 21 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.
... this manual. EN Introduction 21 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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...memory recommended for all eight DIMM slots. Optimized memory for automatic duplex printing. 22 Chapter 1 - Printer features Table 1. sheet stacker (output) X X 1 To expand the dual inline memory module (... hard disk X X X X X X HP JetDirect EIO card X X X X X X 500-sheet tray 2 X X X X X X X 2,000-sheet input unit X X X Duplexer X X X X Copy module X External (EIO- compatible) printer X X hard disk DRAM DIMMs (synchronous) X X X X X X X X Duplexer2 X X X X HP JetDirect EIO card X X Accessories 500-sheet ...
...memory recommended for all eight DIMM slots. Optimized memory for automatic duplex printing. 22 Chapter 1 - Printer features Table 1. sheet stacker (output) X X 1 To expand the dual inline memory module (... hard disk X X X X X X HP JetDirect EIO card X X X X X X 500-sheet tray 2 X X X X X X X 2,000-sheet input unit X X X Duplexer X X X X Copy module X External (EIO- compatible) printer X X hard disk DRAM DIMMs (synchronous) X X X X X X X X Duplexer2 X X X X HP JetDirect EIO card X X Accessories 500-sheet ...
Service Manual
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..., Executive, and 11-by-17 inch size Heavy paper Transparencies Fonts Printer personality support User interface and EIO 12 ppm b/w; 3 ppm color 3.2 ppm b/w; 2.2 ppm color 2.6 ppm b/w; 2.0 ppm color TrueType™ rasterizer in both HP PCL and Adobe PostScript® 45 scalable HP typefaces 136 scalable Adobe PostScript fonts Automatic personality switching PCL and PostScript support Standard...
..., Executive, and 11-by-17 inch size Heavy paper Transparencies Fonts Printer personality support User interface and EIO 12 ppm b/w; 3 ppm color 3.2 ppm b/w; 2.2 ppm color 2.6 ppm b/w; 2.0 ppm color TrueType™ rasterizer in both HP PCL and Adobe PostScript® 45 scalable HP typefaces 136 scalable Adobe PostScript fonts Automatic personality switching PCL and PostScript support Standard...
Service Manual
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... Allowed 0 to 3,048 meters (0 to 10,000 feet) 0 to 3,048 meters (0 to 10,000 feet) Note See the HP Color LaserJet 8550 MFP printer service manual for typical product 110-volt models 100 to 127 V (+/- 10%) 50/60 Hz (+/- 2 Hz) 750 W (average...Operating environment specifications Table 4. Product information EN 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 dimensions that include copy module, automatic document...
... Allowed 0 to 3,048 meters (0 to 10,000 feet) 0 to 3,048 meters (0 to 10,000 feet) Note See the HP Color LaserJet 8550 MFP printer service manual for typical product 110-volt models 100 to 127 V (+/- 10%) 50/60 Hz (+/- 2 Hz) 750 W (average...Operating environment specifications Table 4. Product information EN 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 dimensions that include copy module, automatic document...
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...) 566 mm (22 inches) Depth 625 mm (25 inches) 625 mm (25 inches) Weight (with 87 kilograms (kg) consumables) (192 pounds) 100 kg (220 pounds) Printer with 2,000sheet input unit and multi-bin mailbox or stapler/stacker 1230 mm (48 inches) 1056 mm (42 inches) 625 mm (25 inches) 118 kg... 49 dB(A) Printing: LpA 50 dB(A) Standby: LpA 45 dB(A) Printing: 6.8 B (A) Standby: 6.3 B (A) 8550 LpA 57 dB(A) LpA 52 dB(A) LpA 54 dB(A) LpA 47 dB(A) 7.0 B (A) 6.4 B (A) Printer dimensions Table 6. Acoustic emission specifications Table 5.
...) 566 mm (22 inches) Depth 625 mm (25 inches) 625 mm (25 inches) Weight (with 87 kilograms (kg) consumables) (192 pounds) 100 kg (220 pounds) Printer with 2,000sheet input unit and multi-bin mailbox or stapler/stacker 1230 mm (48 inches) 1056 mm (42 inches) 625 mm (25 inches) 118 kg... 49 dB(A) Printing: LpA 50 dB(A) Standby: LpA 45 dB(A) Printing: 6.8 B (A) Standby: 6.3 B (A) 8550 LpA 57 dB(A) LpA 52 dB(A) LpA 54 dB(A) LpA 47 dB(A) 7.0 B (A) 6.4 B (A) Printer dimensions Table 6. Acoustic emission specifications Table 5.
Service Manual
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...free area. Install on page 28). Install the printer away from the direct flow of exhaust from walls or other objects. In particular, be enough space around the printer for locating and placing the printer: Install in maintaining the performance level set at the ...factory. Site requirements General guidelines Locating and placing the printer correctly are recommendations for proper access and ventilation (see figure...
...free area. Install on page 28). Install the printer away from the direct flow of exhaust from walls or other objects. In particular, be enough space around the printer for locating and placing the printer: Install in maintaining the performance level set at the ...factory. Site requirements General guidelines Locating and placing the printer correctly are recommendations for proper access and ventilation (see figure...
Service Manual
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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 55 ...
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 55 ...