Xerox 8850 Service Manual

03/2003
7-1
8850/ 510DP
Wiring Data
7 Wiring Data
Block Schematic Diagrams
Level 1 BSD
How To Use BSDs .......................................................................................................... 7-3
Level 1 BSD .................................................................................................................... 7-4
Standby Power
BSD 1.1 Main Power On (50 and 60 HZ)........................................................................ 7-8
BSD 1.2 DC Power Generation (1 of 3) .......................................................................... 7-10
BSD 1.3 Interlock Monitoring (1 OF 4) ............................................................................ 7-12
BSD 1.4 Machine Cooling ............................................................................................... 7-16
Mode Control
BSD 2.1 Mode Selection ................................................................................................. 7-17
Machine Run Control
BSD 3.1 Machine Run Control........................................................................................ 7-19
Print Power
BSD 4.1 Fuser Heat Roll Drive ....................................................................................... 7-21
BSD 4.2 Developer Drive ................................................................................................ 7-22
BSD 4.3 Drum Drive........................................................................................................ 7-22
Imaging Imaging (Right Side)
BSD 6.1 Imaging Right Side ........................................................................................... 7-24
Paper Supplying
BSD 7.1 Media Drive....................................................................................................... 7-27
BSD 7.2 Media Feed, Roll 1............................................................................................ 7-29
BSD 7.3 Media Feed, Roll 2............................................................................................ 7-31
BSD 7.4 Media Feed, Roll 3............................................................................................ 7-33
BSD 7.5 Media Cutting.................................................................................................... 7-35
Paper Feeding
BSD 8.1 Sheet Feed Registration and Transportation (1 of 2) ....................................... 7-37
BSD 8.2 Media Registration and Transportation............................................................. 7-38
BSD 8.3 Print Transportation .......................................................................................... 7-42
Xerographics
BSD 9.1 Charging ........................................................................................................... 7-44
BSD 9.2 Exposure........................................................................................................... 7-47
BSD 9.3 Development..................................................................................................... 7-48
BSD 9.4 Image Transfer and Media Stripping ................................................................ 7-52
BSD 9.5 Drum Cleaning.................................................................................................. 7-54
BSD 9.6 Drum Discharging ............................................................................................. 7-56
BSD 9.7 Toner/Developer Dispense............................................................................... 7-58
BSD 9.8 Corotron and Developer Bias Power ................................................................ 7-61
Fusing and Transportation
BSD 10.1 Fuser Heat..................................................................................................... 7-63
BSD 10.2 Fuser Oil Dispensing....................................................................................... 7-66
BSD 10.3 Fusing and Jam Detection .............................................................................. 7-68
Plug Jacks
Plug/Jack List ..................................................................................................................7-73

Xerox 8850 Specifications

General

Brand	Xerox
Model	8850
Category	Printer
Language	English