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Ricoh SR790 - User Manual

Ricoh SR790
25 pages
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1000-SHEET FINISHER
(Machine Code: B408)

Questions and Answers

  • C
    Christina MatthewsAug 13, 2025
    What to do if the staple tray entrance sensor does not turn off on Ricoh SR790 Finishers?
    • J
      James SmithAug 13, 2025
      If the staple tray entrance sensor on your Ricoh Finishers doesn't turn off in the expected time after activation, the suggested solution is to check the wiring to the staple tray entrance sensor.
  • T
    Timothy PetersonAug 16, 2025
    What to do if the tray exit sensor does not turn off within the normal time on Ricoh SR790?
    • Q
      qjonesAug 16, 2025
      If the tray exit sensor does not turn off within the normal time after turning on in Ricoh Finishers, examine the tray exit sensor for errors.
  • T
    Trevor BennettAug 20, 2025
    What to do if the entrance sensor does not turn off within the normal time on Ricoh SR790 Finishers?
    • N
      Nicholas SampsonAug 20, 2025
      If the entrance sensor does not turn off within the normal time after it turns on for Ricoh Finishers, inspect the entrance sensor for any obstructions.
  • H
    Heidi HunterAug 23, 2025
    What to do if the lower exit sensor turns on when the feed-out pawl returns on Ricoh Finishers?
    • W
      wilsonrobertAug 23, 2025
      If the lower exit sensor turns on when the feed-out pawl returns to its home position after feeding out the outputs on Ricoh Finishers, you should review the timing of the feed-out pawl's return.
  • P
    pamelabartonAug 27, 2025
    What to do if the entrance sensor does not turn on within the normal time on Ricoh SR790?
    • M
      Michelle HarrisAug 27, 2025
      If the entrance sensor does not turn on within the normal time after the main machine exit sensor turns on for Ricoh Finishers, check the entrance sensor connections.
  • D
    Daniel TranAug 31, 2025
    What to do if the stapler tray entrance sensor does not switch on Ricoh Finishers?
    • C
      Casey McdanielAug 31, 2025
      If the stapler tray entrance sensor does not switch on within the normal time after the entrance sensor switched on Ricoh Finishers, test the stapler tray entrance sensor.
  • S
    Sandra MillerSep 4, 2025
    What to do if the lower tray exit sensor does not turn on Ricoh SR790 Finishers?
    • L
      lancerossSep 4, 2025
      If the lower tray exit sensor does not turn on within the normal time after the entrance sensor turns off on Ricoh Finishers, verify the lower tray exit sensor functionality.
  • T
    Tyler FitzgeraldSep 8, 2025
    What to do if the lower exit sensor does not turn on after the feed-out pawl feeds out the outputs on Ricoh Finishers?
    • J
      Jessica MorganSep 8, 2025
      If the lower exit sensor does not turn on after the feed-out pawl feeds out the outputs on Ricoh Finishers, inspect the feed-out pawl and lower exit sensor.

Summary

1. REPLACEMENT AND ADJUSTMENT

1.1 MAIN PCB

Procedures for replacing and adjusting the Main PCB, including necessary components.

1.2 STAPLER UNIT

1.3 MOTORS

1.3.1 SHIFT MOTOR

Details on replacing the shift motor, including rear cover removal.

1.3.2 STAPLER MOTOR

Procedures for replacing the stapler motor, referencing rear cover removal.

1.3.3 UPPER TRANSPORT MOTOR AND EXIT MOTOR

Instructions for replacing upper transport and exit motors.

1.3.4 LOWER TRANSPORT MOTOR

Procedures for replacing the lower transport motor, referencing Main PCB.

1.4 MOTORS AND SENSORS

1.4.2 STACK HEIGHT SENSOR

Details on replacing the stack height sensor assembly and sensor.

1.4.3 STAPLER TRAY PAPER SENSOR

Procedure for replacing the stapler tray paper sensor.

2. TROUBLESHOOTING

2.1 JAM DETECTION

Table detailing jam detection scenarios for shift and staple modes based on sensor status.

4.3 ELECTRICAL COMPONENT DESCRIPTION

4.7 LOWER TRAY UP;DOWN MECHANISMS

4.8 PAPER SHIFT MECHANISM

4.9 JOGGER UNIT PAPER POSITIONING MECHANISM

4.11 STAPLER MECHANISM

4.12 STAPLER UNIT MOVEMENT MECHANISM

4.13 PAPER FEED-OUT MECHANISM

Ricoh SR790 Specifications

General IconGeneral
TypeFinisher
FunctionStapling
Paper Weight52 to 300 gsm
Output Tray Capacity500 sheets
Staple Positions2 Staples
Sheet Capacity50 sheets

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