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C1142 (bizhub 750i)
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Contents
Trouble type | C1142: Paddle up/down motor drive malfunction (When FS-540 or FS-540SD is installed) |
Rank | B |
Trouble detection condition | The 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 isolation | Staple |
Relevant electrical parts | -Paddle up/down motor (M7) -Paddle up/down home sensor (PS27) -FS control board (FSCB) |
Procedure
- Check the connector between M7-relay CN13A-FSCB J14 for proper connection and correct as necessary.
- Check the connector of M7 for proper drive coupling and correct as necessary.
- Check the connector between PS27-relay CN13A-FSCB J14 for proper connection and correct as necessary.
- 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
- M7 operation check
- Control signal: FSCB J14<A>-1 to 4
- Location of electrical component: FS-540/FS-540SD 18-K to L
- Replace M7. (Part# A87HPPA700)
- Replace FSCB. (Part# AAR5PPD401)