Service manual p h a s e r ® c o l o r l a s e r p r i n t e r 7750
Service manual xiii contents service terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Iii symbols marked on the product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Iv power safety precautions . . . . . . . . . . . . . . . . . . ....
Xiv phaser 7750 printer #4 skew (rough) setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19 view the regicon patterns. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20 sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Service manual xv engine logic board nvram failure, code 83 . . . . . . . . . . . . . . 3-40 controller to engine logic board time failure, code 84 . . . . . . 3-40 engine logic board micro pitch failure, code 85. . . . . . . . . . . . 3-40 high-voltage power supply failure, code 86 . . . . . . . . ...
Xvi phaser 7750 printer windows 98 and windows me troubleshooting . . . . . . . . . . . . 4-25 macintosh troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27 novell netware troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . 4-28 5 print-quality troubleshooting prin...
Service manual xvii 8 service parts disassembly overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2 standard orientation of the printer for disassembly . . . . . . . . . . 8-2 general notes on disassembly . . . . . . . . . . . . . . . . . . ...
Xviii phaser 7750 printer part list 16.13 left cover assembly (ltd) . . . . . . . . . . . . . . . . 9-45 part list 16.14 tray 4/5 lift gear assembly . . . . . . . . . . . . . . . 9-46 part list 16.15 electrical components and caster . . . . . . . . . . . 9-47 part list 16.16 lower tray deck . . . . ...
Service manual xix pl 17.5 covers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-48 pl 17.6 top cover and eject roll . . . . . . . . . . . . . . . . . . . . . . . 11-50 pl 17.7 paper transport: 1 of 2 . . . . . . . . . . . . . . . . . . . . . . . . 11-52 pl 17.8 paper tr...
4 chapter general troubleshooting in this chapter... ■ introduction ■ service diagnostics ■ front panel troubleshooting ■ inoperable printer troubleshooting ■ troubleshooting power supplies and interlocks ■ media jams and the paper path ■ operating system and application problems.
4-2 phaser 7750 printer service manual introduction this chapter covers the general startup, postscript, and power supply operations of the printer to aid in troubleshooting problems not associated with an error code or front panel error message. For troubleshooting problems associated with an error...
8 chapter service parts disassembly in this chapter... ■ overview ■ general notes on disassembly ■ disassembly procedures.
8-2 phaser 7750 printer service manual overview this section contains the removal and replacement procedures for selected parts of the printer according to the service parts list. Not all replacement procedures are included in this service manual. In most cases, to reinstall a part, simply reverse t...
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