HP 8550 Service Manual - Page 724

G G image signal 205, 210, 211 gaps printer/HCI, adjusting 159 sheet-to-sheet 149 gate array, enabling 109 gear/pulley kits, part numbers automatic document feeder (ADF) 601 copy module 560 high-capacity input (HCI) 649 gears automatic document feeder (ADF) 384 idler, removing 400 lubricating 174 part numbers 689 gradation adjustment automatic 57 CMYK 86 fine 86 test prints 468 gradation control CMYK test prints 472 test prints 469 gray balance, testing 474 grid pattern, correcting 124, 471 grommets, part numbers 689 guide key 49 guides condensation 463 inlet plate, removing 397 inside plate, removing 399 lower paper assembly 638 part numbers 689 pre-separation 31 reversing, removing 419 separation plate, removing 399 separation, cleaning 173 side 382, 383 upper paper assembly 636 H halftone test print 470 HCI (high-capacity input) adjustments 159 assembly diagrams 652 base plate, adjusting 160 block diagram 304 capacity 32 cleaning 173 connectors, part numbers 669 covers, diagrams 654 covers, identifying 434 covers, part numbers 655 covers, removing 435 deck controller part numbers 668 deck controller PCB 304 722 Index diagrams 33 dimensions 32 environment, operating 32 feed sensor 313 gap, adjusting 159 internal components 656 jams 313 lifter drive assembly 663 lifter operation 310 lifter wire, removing 442 lubricants 174 motors 316 mounting hardware 653 operating environment 32 overcurrent protection 314 paper pick-up assembly 664 part numbers 649 parts, removing 435 PCBs 317 pick-up unit, removing 437 power supply 314 power supply, removing 454 remaining paper detection 311 removing parts 435 sensors 315 solenoids 316 specifications 32 troubleshooting 535 heater rings, mounting 361 heater, scanning lamp removing 357 temperature control 195 troubleshooting 505 height automatic document feeder (ADF) 29 automatic document feeder (ADF), adjusting 141 copy module 25 copy module, troubleshooting 471 high-capacity input (HCI) 32 help, context-sensitive 49 Hewlett-Packard Distribution (HPD) ordering information 39 high humidity adjustments for 99, 102 operating environment 462 high-capacity input (HCI) adjustments 159 assembly diagrams 652 base plate, adjusting 160 block diagram 304 capacity 32 cleaning 173 connectors, part numbers 669 covers, diagrams 654 covers, identifying 434 covers, part numbers 655 EN