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PERIPHERALS

ARDF (B351)

1 REPLACEMENT AND ADJUSTMENT...................................B351-1

1.1 COVERS ............................................................................................ B351-1

1.2 ORIGINAL FEED UNIT ...................................................................... B351-2

1.3 ORIGINAL PICK-UP ROLLER............................................................ B351-2

1.4 ORIGINAL FEED BELT...................................................................... B351-3

1.5 SKEW CORRECTION/INTERVAL/ REGISTRATION/ORIGINAL WIDTH

SENSORS.......................................................................................... B351-4

1.6 ORIGINAL LENGTH SENSORS ........................................................ B351-5

1.7 SEPARATION ROLLER..................................................................... B351-5

1.8 INVERTER /ORIGINAL SET SENSORS............................................ B351-6

1.9 PICK-UP MOTOR/ORIGINAL STOPPER HP SENSOR/PICK-UP HP

SENSOR............................................................................................ B351-6

1.10 SCANNER MOTOR AND INVERTER MOTOR................................ B351-7

1.11 FEED MOTOR, SKEW CORRECTION ROLLER CLUTCH ............ B351-8

1.12 EXIT SENSOR ................................................................................. B351-9

1.13 STAMP SOLENOID.......................................................................... B351-9

1.14 CONTROLLER BOARD ................................................................... B351-9

2 TROUBLESHOOTING .........................................................B351-10

2.1 TIMING CHARTS ............................................................................. B351-10

2.1.1 A4(S)/LT(S) SINGLE-SIDE ORIGINAL MODE........................ B351-10

2.1.2 A4(S)/LT(S) DOUBLE-SIDED ORIGINAL MODE.................... B351-11

2.2 JAM DETECTION............................................................................. B351-12

3 SERVICE TABLES...............................................................B351-13

3.1 DIP SWITCHES................................................................................ B351-13

3.2 TEST POINTS.................................................................................. B351-13

3.3 FUSES ............................................................................................. B351-13

4 DETAILED DESCRIPTION ..................................................B351-14

4.1 MAIN COMPONENTS...................................................................... B351-14

DRIVE LAYOUT .......................................................................... B351-15

4.3 ORIGINAL SIZE DETECTION.......................................................... B351-16

4.3.1 BASIC MECHANISM............................................................... B351-16

4.3.2 MIXED ORIGINAL SIZE MODE .............................................. B351-18

4.4 ORIGINAL FEED-IN MECHANISM .................................................. B351-19

4.4.1 PICK AND SEPARATION........................................................ B351-19

4.4.2 ORIGINAL SKEW CORRECTION........................................... B351-20

4.4.3 REDUCING THE INTERVAL BETWEEN PAGES................... B351-20

4.5 ORIGINAL TRANSPORT AND EXIT................................................ B351-21

4.5.1 SINGLE-SIDED ORIGINALS................................................... B351-21

4.5.2 DOUBLE-SIDED ORIGINALS ................................................. B351-22

4.6 STAMP............................................................................................. B351-23

Brand	Ricoh
Model	A-C2
Category	All in One Printer
Language	English

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