Oki B6500 Service Manual page 509

Chapter 6 Principles of Operation Contents
Chapter 6 Principles of Operation ..................................................................................6 - 1
Engine ............................................................................................................................6 - 1
1. Summary of Printing Process ......................................................................................6 - 1
2. Flow of Print Data ........................................................................................................6 - 6
3. Driving Force Transmission Path ................................................................................6 - 7
3.1 MAIN MOTOR................................................................................................................................... 6 - 7
3.2 MOTOR ASSY EXIT ......................................................................................................................... 6 - 7
3.3 Gear Layout ...................................................................................................................................... 6 - 8
4. Paper Transport.........................................................................................................6 - 11
4.1 Paper Transport Path...................................................................................................................... 6 - 11
4.2 Layout of Paper Transport Path...................................................................................................... 6 - 12
5. Actions of Main Functional Components ................................................................... 6 - 13
5.1 Paper Cassette ............................................................................................................................... 6 - 13
5.2 Paper Feeder .................................................................................................................................. 6 - 16
5.3 Xero ................................................................................................................................................ 6 - 18
5.4 Fuser............................................................................................................................................... 6 - 22
5.5 500 Paper Exit & Option Face Up Tray........................................................................................... 6 - 24
5.6 Drive................................................................................................................................................ 6 - 26
5.7 Electrical ......................................................................................................................................... 6 - 27
6. Control .......................................................................................................................6 - 29
6.1 Control of Paper Size...................................................................................................................... 6 - 29
6.1.1 Cassette Feeding (Paper Cassette)........................................................................................ 6 - 29
6.2 ROS Control.................................................................................................................................... 6 - 30
6.2.1 Rotation of Scanner Motor ...................................................................................................... 6 - 30
6.2.2 Warm-up of ROS .................................................................................................................... 6 - 30
6.2.3 ROS Reference Value ............................................................................................................ 6 - 30
6.3 Fuser Control .................................................................................................................................. 6 - 31
6.3.1 Fuser Control .......................................................................................................................... 6 - 31
6.3.2 ON/OFF Control of Halogen Lamp ......................................................................................... 6 - 31
6.3.3 Warm-up of Fuser ................................................................................................................... 6 - 31
6.3.4 Fuser Temperature in Ready State......................................................................................... 6 - 31
6.3.5 Fuser Temperature when Abnormal Temperature (higher or lower) is Detected ................... 6 - 31
7. Schematic Diagram of Safety System .......................................................................6 - 32
Duplex Option...............................................................................................................6 - 33
8. Driving Force Transmission Path ..............................................................................6 - 33
8.1 MOTOR DUPLEX ........................................................................................................................... 6 - 33
8.2 Gear Layout .................................................................................................................................... 6 - 33
9. Paper Transport.........................................................................................................6 - 34
9.1 Paper Transport Path...................................................................................................................... 6 - 34
9.2 Layout of Paper Transport Path...................................................................................................... 6 - 35
10. Actions of Main Functional Components .................................................................6 - 36
Chapter 6 Principles of Operation