HP — HP Color LaserJet 3500/3550 and 3700 series printer Service Manual (EN)

Figure 6-8. Left front cover removal (2 of 3) ....................................................................212 Figure 6-9. Left front cover removal (3 of 3) ....................................................................213 Figure 6-10. Right cover removal ......................................................................................213 Figure 6-11. Top cover removal ........................................................................................214 Figure 6-12. Upper rear door removal ...............................................................................214 Figure 6-13.

Rear cover removal .......................................................................................215 Figure 6-14. Lower rear door removal ...............................................................................215 Figure 6-15. Tray 1 removal ..............................................................................................216 Figure 6-16. Main internal assemblies ...............................................................................217 Figure 6-17. Transfer unit removal ....................................................................................219 Figure 6-18.

Transfer unit installation ................................................................................219 Figure 6-19. Print cartridge removal ..................................................................................220 Figure 6-20. Fuser removal ...............................................................................................221 Figure 6-21. Face-down delivery assembly removal .........................................................222 Figure 6-22. Laser/scanner assembly removal .................................................................223 Figure 6-23.

Image drive assembly removal .....................................................................224 Figure 6-24. Developing engaging drive assembly removal .............................................225 Figure 6-25. Pick-up/feed assembly removal (1 of 13) .....................................................226 Figure 6-26. Pick-up/feed assembly removal (2 of 13) .....................................................226 Figure 6-27. Pick-up/feed assembly removal (3 of 13) .....................................................227 Figure 6-28. Right swing rod arm reassembly ...................................................................227 Figure 6-29.

Pick-up/feed assembly removal (4 of 13) .....................................................228 Figure 6-30. Pick-up/feed engaging rack assembly replacement (1 of 2) .........................229 Figure 6-31. Pick-up/feed engaging rack assembly replacement (2 of 2) .........................229 Figure 6-32. Print cartridge engaging pins replacement ...................................................229 Figure 6-33. Pick-up/feed assembly removal (5 of 13) .....................................................230 Figure 6-34. Pick-up/feed assembly removal (6 of 13) .....................................................231 Figure 6-35.

Gear plate gear locations replacement .........................................................231 Figure 6-36. Pick-up/feed assembly removal (7 of 13) .....................................................232 Figure 6-37. Pick-up/feed assembly removal (8 of 13) .....................................................232 Figure 6-38. Pick-up/feed assembly removal (9 of 13) .....................................................233 Figure 6-39. Pick-up/feed assembly removal (10 of 13) ...................................................233 Figure 6-40. Pick-up/feed assembly removal (11 of 13) ...................................................234 Figure 6-41.

Pick-up/feed assembly removal (12 of 13) ...................................................234 Figure 6-42. Pick-up/feed assembly removal (13 of 13) ...................................................235 Figure 6-43. Main assemblies parts location .....................................................................236 Figure 6-44. Tray 1 pick-up roller removal ........................................................................237 Figure 6-45. Tray 1 separation pad removal .....................................................................237 Figure 6-46. Tray 2 pick-up roller removal ........................................................................238 Figure 6-47.

Tray 2 separation pad removal .....................................................................238 Figure 6-48. Secondary transfer charging roller removal ..................................................239 Figure 6-49. Feed guide unit removal (1 of 2) ...................................................................240 Figure 6-50. Feed guide removal (2 of 2) ..........................................................................241 Figure 6-51. Feed guide/printer drive shaft connection .....................................................241 Figure 6-52. Feed guide unit tab locations ........................................................................241 Figure 6-53.

Right swing guide removal (1 of 4) ...............................................................242 Figure 6-54. Right swing guide removal (2 of 4) ...............................................................242 Figure 6-55. Right swing guide removal (3 of 4) ...............................................................243 Figure 6-56. Right swing guide removal (4 of 4) ...............................................................243 Figure 6-57. Swing guide shaft removal ............................................................................244 Figure 6-58. Developing (drum) lock arm position for swing guide installation .................244 Figure 6-59.

Left swing guide removal (1 of 6) ..................................................................245 Figure 6-60. Left swing guide removal (2 of 6) ..................................................................246 Figure 6-61. Left swing guide removal (3 of 6) ..................................................................246 Figure 6-62. Left swing guide removal (4 of 6) ..................................................................247 Figure 6-63. Left swing guide removal (5 of 6) ..................................................................247 ENWW Conventions xix