Ricoh B205 Service Manual page 819

AUTO REVERSE DOCUMENT FEEDER
1. REPLACEMENT AND ADJUSTMENT ............................................1
1.1 DF EXIT TABLE AND COVERS................................................................... 1
1.2 ORIGINAL FEED UNIT ................................................................................ 2
1.3 LEFT COVER ............................................................................................... 2
1.4 PICK-UP ROLLER........................................................................................ 3
1.5 FEED BELT .................................................................................................. 3
1.6 SEPARATION ROLLER ............................................................................... 4
1.7 ORIGINAL SET/ORIGINAL REVERSE SENSORS...................................... 4
1.8 ORIGINAL SIZE SENSORS, TRAILING EDGE SENSOR ........................... 5
1.9 ORIGINAL FEED DRIVE .............................................................................. 6
DF Feed Clutch........................................................................................ 6
Pick-up Solenoid ...................................................................................... 6
Transport Motor ....................................................................................... 6
DF Feed Motor......................................................................................... 6
1.10 REGISTRATION SENSOR......................................................................... 7
1.11 STAMP SOLENOID AND ORIGINAL EXIT SENSOR ................................ 8
2. DETAILED DESCRIPTIONS ............................................................9
2.1 MECHANICAL COMPONENT LAYOUT ...................................................... 9
2.2 ELECTRICAL COMPONENT LAYOUT...................................................... 10
2.3 ELECTRICAL COMPONENT DESCRIPTION............................................ 11
2.4 DRIVE LAYOUT ......................................................................................... 12
2.5 ORIGINAL SIZE DETECTION.................................................................... 13
2.6 MIXED ORIGINAL SIZE MODE ................................................................. 16
2.7 PICK-UP AND SEPARATION .................................................................... 17
2.8 ORIGINAL TRANSPORT AND EXIT.......................................................... 18
2.8.1 SINGLE-SIDED ORIGINALS............................................................. 18
2.8.2 DOUBLE-SIDED ORIGINALS ........................................................... 19
2.8.3 ORIGINAL TRAILING EDGE SENSOR............................................. 20
2.9 STAMP ....................................................................................................... 21
2.10 TIMING CHART........................................................................................ 22
2.11 CONDITION OF JAM DETECTION.......................................................... 23
2.12 OVERALL ELECTRICAL CIRCUIT .......................................................... 24
3. SERVICE TABLES.........................................................................25
3.1 DIP SWITCHES.......................................................................................... 25
SM
B810
TABLE OF CONTENTS
i B810