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Figure 7-18. Location of main parts ...................................................................................451
Figure 7-19. Location of switches ......................................................................................452
Figure 7-20. Location of sensors .......................................................................................453
Figure 7-21. Location of solenoids and clutches ...............................................................454
Figure 7-22. Location of motors and fans ..........................................................................455
Figure 7-23. PCB locations ................................................................................................456
Figure 7-24. Location of DC controller PCB connectors (HP 3700) ..................................457
Figure 7-25. Location of DC controller PCB connectors (HP 3500/3550) .........................457
Figure 7-26. Connector locations for the HP Color LaserJet 3700 printer (1 of 2) ...........458
Figure 7-27. Connector locations for the HP Color LaserJet 3700 printer (2 of 2) ...........459
Figure 7-28. Connector locations for the HP Color LaserJet 3500/3550 printer (1 of 2) . .460
Figure 7-29. Connector locations for the HP Color LaserJet 3500/3550 printer (2 of 2) . .461
Figure 7-30. Connector locations for the 500-sheet paper feeder ....................................462
Figure 7-31. General circuit diagram (1 of 2) ....................................................................463
Figure 7-32. General circuit diagram (2 of 2) ....................................................................464
Figure 8-1. Main parts (1 of 3) .........................................................................................478
Figure 8-2. Main parts (2 of 3) .........................................................................................479
Figure 8-3. Main parts (3 of 3) 500-sheet paper feeder ..................................................480
Figure 8-4. PCB locations (1 of 2) ...................................................................................480
Figure 8-5. Paper Feeder PCB Assembly Location Diagram (2 of 2) R90 - 1 ................482
Figure 8-6. External covers and panels ...........................................................................484
Figure 8-7. Front door assembly .....................................................................................486
Figure 8-8. Internal components (1 of 4) .........................................................................488
Figure 8-9. Internal components (2 of 4) .........................................................................490
Figure 8-10. Internal components (3 of 4) .........................................................................494
Figure 8-11. Internal components (4 of 4) .........................................................................496
Figure 8-12. Center frame assembly .................................................................................498
Figure 8-13. Main Right Side Plate Assembly / Motors .....................................................500
Figure 8-14. Main Left Side Plate Assembly .....................................................................504
Figure 8-15. Lower Frame Assembly - HP 3700 and HP 3500/3550 (1 of 2) ...................506
Figure 8-16. Lower Frame Assembly - HP 3700 and HP 3500/3550 (2 of 2) ...................508
Figure 8-17. Image Drive Assembly ..................................................................................510
Figure 8-18. Developing Disengaging Assembly ..............................................................512
Figure 8-19. Tray 2 (cassette) ...........................................................................................514
Figure 8-20. Pick-up/Feed assembly (1 of 2) ....................................................................516
Figure 8-21. Pick-up/Feed assembly (2 of 2) ....................................................................518
Figure 8-22. Tray 2 (cassette) pick-up assembly ..............................................................520
Figure 8-23. Face-down delivery assembly .......................................................................522
Figure 8-24. Transfer Unit ..................................................................................................524
Figure 8-25. Right Swing Frame Assembly .......................................................................526
Figure 8-26. Left Swing Frame Assembly .........................................................................528
Figure 8-27. Fuser .............................................................................................................530
Figure 8-28. 500-Sheet paper feeder main body ..............................................................532
Figure 8-29. 500-Sheet paper feeder paper pick-up drive assembly ................................534
Figure 8-30. 500-Sheet paper feeder tray (Tray 3) ...........................................................536
xxii ENWW