Ricoh A250 Service Manual page 19

3.8 PAPER END SENSOR REPLACEMENT ............................................... 9-20
3.9 VERTICAL TRANSPORT SENSOR REPLACEMENT ........................... 9-20
3.10 PAPER SIZE SWITCH REPLACEMENT.............................................. 9-21
PAPER TRAY UNIT A861
1. OVERALL MACHINE INFORMATION ...................................... 10-1
1.1 SPECIFICATIONS .................................................................................. 10-1
1.2 MECHANICAL COMPONENT LAYOUT................................................. 10-2
1.3 ELECTRICAL COMPONENT LAYOUT .................................................. 10-3
1.4 ELECTRICAL COMPONENT DESCRIPTION ........................................ 10-4
1.5 DRIVE LAYOUT...................................................................................... 10-5
2. DETAILED DESCRIPTIONS ..................................................... 10-6
2.1 PAPER FEED AND SEPARATION......................................................... 10-6
2.2 PAPER LIFT MECHANISM .................................................................... 10-7
2.3 PAPER END DETECTION ..................................................................... 10-9
2.4 PAPER HEIGHT DETECTION ............................................................. 10-10
2.5 PAPER SIZE DETECTION ................................................................... 10-12
2.6 SIDE AND END FENCES..................................................................... 10-13
3. REPLACEMENT AND ADJUSTMENT.................................... 10-14
3.1 FEED ROLLER REPLACEMENT ......................................................... 10-14
3.2 TRAY MAIN BOARD REPLACEMENT................................................. 10-15
3.3 TRAY MOTOR REPLACEMENT .......................................................... 10-15
3.4 TRAY MOTOR REPLACEMENT .......................................................... 10-16
3.5 LIFT MOTOR REPLACEMENT ............................................................ 10-17
3.6 PAPER END SENSOR REPLACEMENT ............................................. 10-18
3.7 PAPER SIZE SWITCH REPLACEMENT.............................................. 10-18
1-BIN SORTER (A869)
1. OVERALL INFORMATION........................................................ 11-1
1.1 SPECIFICATIONS .................................................................................. 11-1
1.2 MECHANICAL COMPONENT LAYOUT................................................. 11-2
1.3 ELECTRICAL COMPONENT LAYOUT .................................................. 11-3
1.4 ELECTRICAL COMPONENT DESCRIPTION ........................................ 11-4
2. DETAILED SECTION DESCRIPTIONS..................................... 11-5
2.1 BASIC OPERATION ............................................................................... 11-5
3. REPLACEMENT AND ADJUSTMENT...................................... 11-6
3.1.1 TOP COVER REMOVAL ............................................................... 11-6
3.1.2 TRAY OPEN SWITCH REPLACEMENT ....................................... 11-6
3.1.3 PAPER SENSOR AND EXIT SENSOR REPLACEMENT ............. 11-6
SM vii A250