HP 3150 Service Manual - Page 9

HP 3150 - LaserJet B/W Laser Manual

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Figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Figure 19. Figure 20. Figure 21. Figure 22. Figure 23. Figure 24. Figure 25. Figure 26. Figure 27. Figure 28. Figure 29. Figure 30. Figure 31. Figure 32. Figure 33. Figure 34. Figure 35. Figure 36. Figure 37. Figure 38. Figure 39. Figure 40. Figure 41. Model and serial number label 18 Document scanner path 19 Printer path (1 of 2 20 Printer path (2 of 2 21 Rear view 22 Control panel layout 39 Basic configuration 66 Printer unit functional block diagram 67 ECU loads 68 High-voltage power supply circuit 71 Image formation block diagram 74 Simplified paper path 78 Solenoid, photosensors, and switches 80 Simplified document path 82 General timing diagram 84 Back cover removal (1 of 2 88 Back cover removal (2 of 2 89 Right side cover removal 90 Left side cover removal 91 Left front cover removal 92 Top cover removal 93 RFI shield removal 94 Printer door removal (1 of 3 95 Printer door removal (2 of 3 96 Printer door removal (3 of 3 97 Document release door removal (1 of 2 98 Document release door removal (2 of 2 99 Upper guide assembly removal (1 of 2 100 Upper guide assembly removal (2 of 2 101 Contact image sensor removal (1 of 2 102 Contact image sensor removal (2 of 2 103 Document scanner motor removal (1 of 2 104 Document scanner motor removal (2 of 2 105 Document scanner pickup roller removal 106 LIU board removal 107 Formatter board removal (1 of 2 108 Formatter board removal (2 of 2 109 Metal side plate removal 110 Exit roller removal 111 Delivery assembly removal (1 of 2 112 Delivery assembly removal (2 of 2 113 EN Contents-7

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EN
Contents
-
7
Figures
Figure 1.
Model and serial number label
. . . . . . . . . . . . . . . . . 18
Figure 2.
Document scanner path
. . . . . . . . . . . . . . . . . . . . . . 19
Figure 3.
Printer path (1 of 2)
. . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 4.
Printer path (2 of 2)
. . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 5.
Rear view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 6.
Control panel layout . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 7.
Basic configuration
. . . . . . . . . . . . . . . . . . . . . . . . . . 66
Figure 8.
Printer unit functional block diagram . . . . . . . . . . . . . 67
Figure 9.
ECU loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Figure 10.
High-voltage power supply circuit
. . . . . . . . . . . . . . . 71
Figure 11.
Image formation block diagram . . . . . . . . . . . . . . . . . 74
Figure 12.
Simplified paper path . . . . . . . . . . . . . . . . . . . . . . . . . 78
Figure 13.
Solenoid, photosensors, and switches
. . . . . . . . . . . 80
Figure 14.
Simplified document path
. . . . . . . . . . . . . . . . . . . . . 82
Figure 15.
General timing diagram . . . . . . . . . . . . . . . . . . . . . . . 84
Figure 16.
Back cover removal (1 of 2) . . . . . . . . . . . . . . . . . . . . 88
Figure 17.
Back cover removal (2 of 2) . . . . . . . . . . . . . . . . . . . . 89
Figure 18.
Right side cover removal . . . . . . . . . . . . . . . . . . . . . . 90
Figure 19.
Left side cover removal . . . . . . . . . . . . . . . . . . . . . . . 91
Figure 20.
Left front cover removal . . . . . . . . . . . . . . . . . . . . . . . 92
Figure 21.
Top cover removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Figure 22.
RFI shield removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Figure 23.
Printer door removal (1 of 3)
. . . . . . . . . . . . . . . . . . . 95
Figure 24.
Printer door removal (2 of 3)
. . . . . . . . . . . . . . . . . . . 96
Figure 25.
Printer door removal (3 of 3)
. . . . . . . . . . . . . . . . . . . 97
Figure 26.
Document release door removal (1 of 2) . . . . . . . . . . 98
Figure 27.
Document release door removal (2 of 2) . . . . . . . . . . 99
Figure 28.
Upper guide assembly removal (1 of 2) . . . . . . . . . . 100
Figure 29.
Upper guide assembly removal (2 of 2) . . . . . . . . . . 101
Figure 30.
Contact image sensor removal (1 of 2) . . . . . . . . . . 102
Figure 31.
Contact image sensor removal (2 of 2) . . . . . . . . . . 103
Figure 32.
Document scanner motor removal (1 of 2)
. . . . . . . 104
Figure 33.
Document scanner motor removal (2 of 2)
. . . . . . . 105
Figure 34.
Document scanner pickup roller removal
. . . . . . . . 106
Figure 35.
LIU board removal . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Figure 36.
Formatter board removal (1 of 2) . . . . . . . . . . . . . . . 108
Figure 37.
Formatter board removal (2 of 2) . . . . . . . . . . . . . . . 109
Figure 38.
Metal side plate removal
. . . . . . . . . . . . . . . . . . . . . 110
Figure 39.
Exit roller removal
. . . . . . . . . . . . . . . . . . . . . . . . . . 111
Figure 40.
Delivery assembly removal (1 of 2) . . . . . . . . . . . . . 112
Figure 41.
Delivery assembly removal (2 of 2) . . . . . . . . . . . . . 113