Ricoh B234 - Lcit B834

SM i B834
LCIT B834
TABLE OF CONTENTS
1. REPLACEMENT AND ADJUSTMENT ............................................1
1.1 REMOVING TRAYS.....................................................................................1
1.2 FRONT DOOR AND COVERS.....................................................................3
1.3 INNER COVER, PAPER FEED UNIT...........................................................4
1.4 PAPER FEED ROLLER ...............................................................................5
1.5 LCT MOTORS..............................................................................................6
1.5.1 TRANSPORT MOTORS, LCT EXIT MOTOR......................................6
4th, 5th, and 6th Transport Motors...........................................................6
LCT Exit Motor.........................................................................................6
1.5.2 FEED MOTORS/GRIP MOTORS........................................................7
1.5.3 LIFT MOTORS ....................................................................................8
4th, 6th Lift Motors...................................................................................8
5th Lift Motor............................................................................................8
1.6 LCT EXIT SENSOR......................................................................................9
1.7 PAPER PATH SENSORS ..........................................................................10
1.7.1 REMOVING THE VERTICAL FEED UNIT.........................................10
1.7.2 4TH TRANSPORT, 4TH RELAY UPPER, LOWER SENSORS...............12
1.7.3 5TH RELAY SENSOR, 5TH TRANSPORT SENSOR .......................13
1.7.4 6TH RELAY SENSOR, 6TH TRANSPORT SENSOR .......................14
1.8 MAIN CONTROL BOARD ..........................................................................15
1.9 PAPER HEIGHT, PAPER WIDTH SENSORS............................................16
1.10 SIDE REGISTRATION ADJUSTMENT ....................................................17
1.11 IMAGE POSITION BOARD AND SENSOR..............................................18
1.12 ADJUSTING IMAGE POSITION SENSOR STRENGTH AND
SIDE-TO-SIDE REGISTRATION..............................................................19
2. DETAILED DESCRIPTIONS..........................................................21
2.1 PAPER FEED.............................................................................................21
2.1.1 PAPER FEED ROLLERS ..................................................................21
2.1.2 PAPER FEED MOTORS ...................................................................22
2.1.3 PAPER SEPARATION ......................................................................23
2.2 PAPER DETECTION/LIFT .........................................................................24
2.2.1 MECHANISM.....................................................................................24
2.2.2 LIFT SENSOR...................................................................................25
2.3 PAPER SIZE DETECTION.........................................................................26
2.4 REMAINING PAPER DETECTION ............................................................28
2.5 PAPER END DETECTION.........................................................................29
2.6 IMAGE POSITION CORRECTION.............................................................30
3. OVERALL MECHANICAL INFORMATION ...................................31
3.1 MECHANICAL COMPONENT LAYOUT ....................................................31
3.2 DRIVE LAYOUT .........................................................................................32
3.3 ELECTRICAL COMPONENTS...................................................................33
3.4 A3/DLT LCT B834 LAYOUT (WITH BYPASS)...........................................35
3.5 ELECTRICAL COMPONENT SUMMARY...................................................36