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Controller System
Overview
This product is mainly controlled by the main and DC controllers.
Low Voltage Main PCB
Low Voltage Sub PCB
Off Hook PCB
Telephone Line
Network
Reader Unit
Main Controller
PCB
DC Controller PCB
Relay PCB
FAX-NCU PCB
Wireless LAN PCB
Driver PCB
Parts name
Role
Main Controller PCB
Provides controls on the system, image processing, reader / ADF, FAX and network and maintain
various setting values.
DC Controller PCB
Provides controls on printer, laser, high-voltage PCBs, I/O, etc. and maintain setting values.
Controls
■ Motor Controls
This product uses 3 motors for paper feed and image formation.
The tables below show motor specifications used in this product.
Name
Symbol
Driven parts
Type
Failure detection
Drum Motor
M1
Photosensitive drum, developing cylinder, ITB
DC Motor
Available
Registration
Motor
M3
Registration Roller
Stepping Motor
Not Available
Developing
Motor
M2
Developing Cylinder
DC Motor
Available
Fixing Motor
M4
Pressure Roller, Delivery Roller, Diplex Feed Roller
Stepping Motor
Not Available
Pickup Motor
M5
Pickup Roller, Multi Manual feed Roller, Multi Purpose Tray
Pickup Roller
Stepping Motor
Not Available
2. Technical Explanation
26
Summary of Contents for MF724Cdw
Page 1: ...Revision 2 0 MF720 Series Service Manual ...
Page 12: ...Product Overview 1 Product Lineups 5 Product Features 7 Specifications 8 Name of Parts 14 ...
Page 79: ...4 Click Import Export Import 1 2 2 Technical Explanation 71 ...
Page 103: ...Durable Parts No durable parts is set for this product 3 Periodical Service 95 ...
Page 104: ...Periodical Services No periodical service is set for this product 3 Periodical Service 96 ...
Page 232: ...Adjustment 5 Overview 225 Adjustment at Parts Replacement 226 ...
Page 248: ...Troubleshooting 6 Test Print 241 Trouble shooting items 243 Version Upgrade 244 Debug Log 248 ...
Page 258: ...Error Jam Alarm 7 Outline 251 Error Codes 252 Jam Code 257 ...
Page 267: ...Service Mode 8 Overview 260 COPIER 264 FEEDER 300 FAX 302 TESTMODE 308 ...
Page 322: ...APPENDICES Service Tools 315 General Circuit Diagram 316 Print Sequence 317 Backup Data 318 ...