Gestetner B003 Service Manual page 21

7.3 OPTIONAL EQUIPMENT ..........................................................................7-5
AUTO REVERSE DOCUMENT FEEDER B351
1. REPLACEMENT AND ADJUSTMENT ........................................ 8-1
1.1 COVERS ...................................................................................................8-1
1.2 ORIGINAL FEED UNIT .............................................................................8-2
1.3 ORIGINAL PICK-UP ROLLER...................................................................8-2
1.4 ORIGINAL FEED BELT .............................................................................8-3
1.5 SKEW CORRECTION/INTERVAL/ REGISTRATION/ORIGINAL WIDTH
SENSORS ........................................................................................................8-4
1.6 ORIGINAL LENGTH SENSORS ...............................................................8-5
1.7 SEPARATION ROLLER ............................................................................8-5
1.8 INVERTER /ORIGINAL SET SENSORS ...................................................8-6
1.9 PICK-UP MOTOR/ORIGINAL STOPPER HP SENSOR/PICK-UP HP
SENSOR ...................................................................................................8-6
1.10 SCANNER MOTOR AND INVERTER MOTOR.......................................8-7
1.11 FEED MOTOR, SKEW CORRECTION ROLLER CLUTCH ...................8-8
1.12 EXIT SENSOR ........................................................................................8-9
1.13 STAMP SOLENOID.................................................................................8-9
1.14 CONTROLLER BOARD ..........................................................................8-9
2 TROUBLESHOOTING ................................................................ 8-10
2.1 TIMING CHARTS ....................................................................................8-10
2.1.1 A4(S)/LT(S) SINGLE-SIDE ORIGINAL MODE ...............................8-10
2.1.2 A4(S)/LT(S) DOUBLE-SIDED ORIGINAL MODE ...........................8-11
2.2 JAM DETECTION....................................................................................8-12
3 SERVICE TABLES...................................................................... 8-13
3.1 DIP SWITCHES.......................................................................................8-13
3.2 TEST POINTS .........................................................................................8-13
3.3 FUSES ....................................................................................................8-13
4 DETAILED DESCRIPTION ......................................................... 8-14
4.1 MAIN COMPONENTS .............................................................................8-14
DRIVE LAYOUT .................................................................................8-15
4.3 ORIGINAL SIZE DETECTION.................................................................8-16
4.3.1 BASIC MECHANISM ......................................................................8-16
4.3.2 MIXED ORIGINAL SIZE MODE .....................................................8-18
4.4 ORIGINAL FEED-IN MECHANISM .........................................................8-19
4.4.1 PICK AND SEPARATION...............................................................8-19
4.4.2 ORIGINAL SKEW CORRECTION ..................................................8-20
4.4.3 REDUCING THE INTERVAL BETWEEN PAGES ..........................8-20
4.5 ORIGINAL TRANSPORT AND EXIT.......................................................8-21
4.5.1 SINGLE-SIDED ORIGINALS..........................................................8-21
4.5.2 DOUBLE-SIDED ORIGINALS ........................................................8-22
4.6 STAMP ....................................................................................................8-23
4.7 DF70 SOFTWARE MODIFICATION HISTORY.................................8-24
SM ix
Rev. 09/2002
B003/B004/B006/B007