Ricoh A230 Service Manual page 18

PAPER TRAY UNIT A682
1. OVERALL MACHINE INFORMATION ........................................ 8-1
1.1 SPECIFICATIONS .................................................................................... 8-1
1.2 MECHANICAL COMPONENT LAYOUT................................................... 8-2
1.3 ELECTRICAL COMPONENT LAYOUT .................................................... 8-3
1.4 ELECTRICAL COMPONENT DESCRIPTION .......................................... 8-4
1.5 DRIVE LAYOUT ....................................................................................... 8-5
2. DETAILED DESCRIPTIONS ....................................................... 8-6
2.1 PICK-UP AND SEPARATION ROLLER RELEASE MECHANISM ........... 8-6
2.2 PAPER LIFT MECHANISM ...................................................................... 8-7
2.3 PAPER END DETECTION ....................................................................... 8-9
2.4 PAPER HEIGHT DETECTION ............................................................... 8-10
3. SERVICE TABLES .................................................................... 8-11
3.1 DIP SWITCHES...................................................................................... 8-11
3.2 TEST POINTS ........................................................................................ 8-11
3.3 SWITCHES............................................................................................. 8-11
3.4 FUSES.................................................................................................... 8-11
4. REPLACEMENT AND ADJUSTMENT...................................... 8-12
4.1 COVER REPLACEMENT ....................................................................... 8-12
Right Cover ........................................................................................ 8-12
Rear Cover......................................................................................... 8-12
4.2 ROLLER REPLACEMENT...................................................................... 8-13
4.2.1 PAPER FEED, SEPARATION, AND PICK-UP ROLLERS ............ 8-13
Pick-up Roller..................................................................................... 8-13
Paper Feed Roller .............................................................................. 8-13
Separation Roller ............................................................................... 8-13
4.3 TRAY MOTOR REPLACEMENT ............................................................ 8-14
4.4 PAPER FEED AND RELAY CLUTCH REPLACEMENT......................... 8-15
4.5 PAPER FEED UNIT REPLACEMENT .................................................... 8-16
Upper Paper Feed Unit ...................................................................... 8-17
Lower Paper Feed Unit ...................................................................... 8-17
4.6 PAPER END, TRAY LIFT, AND RELAY SENSOR
REPLACEMENT ..................................................................................... 8-18
Paper End Sensor.............................................................................. 8-18
Tray Lift Sensor.................................................................................. 8-18
Relay Sensor...................................................................................... 8-18
LCT (A683)
1. OVERALL MACHINE INFORMATION ........................................ 9-1
1.1 SPECIFICATIONS .................................................................................... 9-1
1.2 MECHANICAL COMPONENT LAYOUT................................................... 9-2
1.3 ELECTRICAL COMPONENT LAYOUT .................................................... 9-3
A230/A231/A232
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SM