Sharp Digital Copier, AL-840, AL-800 Drive section, Wiring diagram, Asic, CPU IC5 MEN MMT0 MMT1

Page 28

F. Drive section

(1) Outline

The main motor drives the paper feed section, the transport section, the image process section, and the fusing section . The main motor drive circuit is built in the high voltage power PWB.

(2) Major parts

1)

3)

2)

No.

 

 

Parts

 

Note

 

 

 

 

 

Code

Name

Type

Function, operation

 

 

 

 

 

 

 

1

MM

Main motor

Stepping motor (+24V)

Drives the paper feed section, the paper

 

 

 

 

 

transport section, the fusing section, and

 

 

 

 

 

the image process section.

 

 

 

 

 

 

 

2

 

Paper feed section drive

 

Transmits the main motor power to the

 

 

 

gear

 

paper feed section.

 

 

 

 

 

 

 

3

 

Imaging process/

 

Transmits the main motor power to the

 

 

 

fusing section drive gear

 

imaging process section and the fusing

 

 

 

 

 

section.

 

 

 

 

 

 

 

(3) Wiring diagram

MCU(PCU)PWB

ASIC

High voltage power PWB

Paper feed roller

(IC8)

CPU (IC5)

MEN

MMT0

MMT1

Main motor

 

CN804

 

1

MA

Motor

2

MA-

driver

3

MB

 

4

MB-

Heat roller

Pressure roller

Paper exit roller

Developing cartridge

Photoconductor cartridge

Transfer roller

1 – 27

Image 28
Contents Model AL-800/840 Operating Principle Fusing/paper exit section High voltage power PWBPower PWB Scanner read sectionPaper path and imaging Copy modeImage process and data flow Data Flow Diagram Printer modePaper feed, paper transport section OutlineMajor parts PUSPE Sensor Pemp PUSPIN Sensor Paper SizeOperation Paper release operation Scanner reading section Mhps CCD CCD OUTCCD SensorWiring diagram Asic IC8 Mcupcu PWBBlock diagram Scanner writing sectionMcupcu PWB LSU PWB SyncICU PWB Image process section Image forming process diagram Photoconductor section OPCDevelopment section Transfer/separation section System diagram CPU IC5Photoconductor drum unit Developing unitTransfer charger roller Separation electrodeActual image forming process Paper Transfer roller Residual toner OPC drum OPC drum surface potential and developing bias OPC drum surface potentialModel Fusing/paper exit sectionRTH AC Power Hlon HLLComp AMP CN2Wiring diagram Drive sectionAsic CPU IC5 MEN MMT0 MMT1Electrical section Major sections operations and functionsPower PWB High voltage power PWBCopy lamp control PWB Operation PWB Copyright 1998 by Sharp Corporation
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