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SM i B408

1000-SHEET FINISHER SR790 B408

TABLE OF CONTENTS

1. REPLACEMENT AND ADJUSTMENT ............................................1

1.1 MAIN PCB....................................................................................................1

1.2 STAPLER UNIT............................................................................................2

1.3 MOTORS......................................................................................................3

1.3.1 SHIFT MOTOR....................................................................................3

1.3.2 STAPLER MOTOR..............................................................................3

1.3.3 UPPER TRANSPORT MOTOR AND EXIT MOTOR ...........................4

1.3.4 LOWER TRANSPORT MOTOR..........................................................4

1.4 MOTORS AND SENSORS...........................................................................5

1.4.1 PREPARATION...................................................................................5

1.4.2 STACK HEIGHT SENSOR..................................................................6

1.4.3 STAPLER TRAY PAPER SENSOR.....................................................6

1.4.4 LOWER TRAY LIFT MOTOR ..............................................................7

1.4.5 STACK FEED-OUT MOTOR...............................................................7

2. TROUBLESHOOTING .....................................................................8

2.1 JAM DETECTION.........................................................................................8

3. SERVICE TABLES...........................................................................9

3.1 DIP SWITCH SETTINGS .............................................................................9

4. DETAILED DESCRIPTIONS..........................................................10

4.1 GENERAL LAYOUT...................................................................................10

4.2 ELECTRICAL COMPONENT LAYOUT......................................................11

4.3 ELECTRICAL COMPONENT DESCRIPTION............................................13

4.4 DRIVE LAYOUT .........................................................................................15

4.5 JUNCTION GATES ....................................................................................16

Upper Tray Mode...................................................................................16

Sort/Stack Mode ....................................................................................16

Staple Mode...........................................................................................16

4.6 UPPER TRAY.............................................................................................17

4.7 LOWER TRAY UP/DOWN MECHANISMS ................................................18

4.8 PAPER SHIFT MECHANISM .....................................................................19

4.9 JOGGER UNIT PAPER POSITIONING MECHANISM...............................20

4.10 EXIT GUIDE PLATE.................................................................................21

4.11 STAPLER MECHANISM ..........................................................................22

4.12 STAPLER UNIT MOVEMENT MECHANISM ...........................................23

4.13 PAPER FEED-OUT MECHANISM ...........................................................24

Ricoh D017 User Manual

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