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C1142 (bizhub C750i)

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Trouble typeC1142: Paddle up/down motor drive malfunction (When FS-540 or FS-540SD is installed)
RankB
Trouble detection conditionThe paddle up/down home sensor (PS27) is not turned OFF (blocked) or ON (unblocked) even after the set period of time has elapsed while the paddle up/down motor (M7) is energized.
Trouble isolationStaple
Relevant electrical parts-Paddle up/down motor (M7)
-Paddle up/down home sensor (PS27)
-FS control board (FSCB)

Procedure

  1. Check the connector between M7-relay CN13A-FSCB J14 for proper connection and correct as necessary.
  2. Check the connector of M7 for proper drive coupling and correct as necessary.
  3. Check the connector between PS27-relay CN13A-FSCB J14 for proper connection and correct as necessary.
  4. PS27 I/O check, sensor check
    • Control signal: FSCB J14<A>-7 (ON)
    • Location of electrical component: FS-540/FS-540SD 18-K to L
  5. M7 operation check
    • Control signal: FSCB J14<A>-1 to 4
    • Location of electrical component: FS-540/FS-540SD 18-K to L
  6. Replace M7. (Part# A87HPPA700)
  7. Replace FSCB. (Part# AAR5PPD401)

(Link to the Field Service Manual)

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