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C1146 (bizhub 950i/850i)

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Trouble typeC1146: Trailing edge stopper motor/Rr drive malfunction (When FS-540 or FS-540SD is installed)
RankB
Trouble detection condition– The trailing edge stopper sensor/Rr (PS7) is not turned OFF (unblocked) after the set period of time has elapsed after the trailing edge stopper drive starts from the home position.

– The trailing edge stopper sensor/Rr (PS7) is not turned ON (blocked) after the set period of time has elapsed after the trailing edge stopper motor/Rr (M11) is energized when the trailing edge stopper returned to the home position.
Trouble isolation–
Relevant electrical parts– Trailing edge stopper motor/Rr (M11)
– Trailing edge stopper sensor/Rr (PS7)
– FS control board (FSCB)

Procedure

  1. Check the connector between M11-relay CN4-relay CN3-FSCB J21 for proper connection and correct as necessary.
  2. Check the connector of M11 for proper drive coupling and correct as necessary.
  3. Check the connector between PS7-relay CN4-relay CN3-FSCB J21 for proper connection and correct as necessary.
  4. PS7 I/O check, sensor check
    • Control signal: FSCB J21-16 (ON)
    • Location of electrical component: FS-540/FS-540SD 5-D
  5. M11 operation check
    • Control signal: FSCB J21-17 to 20
    • Location of electrical component: FS-540/FS-540SD 5-D
  6. Replace M11.
  7. Replace FSCB.

(Link to the Field Service Manual)

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