C1140 (bizhub 950i/850i)

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When FS-539 or FS-539SD is installed

Contents

Trouble type	C1140: Alignment motor/Rr drive malfunction (When FS-539 or FS-539SD is installed)
Rank	B
Trouble detection condition	– The alignment plate home sensor/Rr (PS13) is not turned OFF (unblocked) after the set period of time has elapsed after the plate drive starts from the home position. – The alignment plate home sensor/Rr (PS13) is not turned ON (blocked) after the set period of time has elapsed while the alignment motor/Rr (M8) is energized when the plate returned to the home position. – The plate does not reach the specified position within the set period of time.
Trouble isolation	–
Relevant electrical parts	– Alignment motor/Rr (M8) – Alignment plate home sensor/Rr (PS13) – FS control board (FSCB)

Procedure

1. Check the connector between M8-relay CN19-FSCB J12 for proper connection and correct as necessary.
2. Check the connector of M8 for proper drive coupling and correct as necessary.
3. Check the connector between PS13-FSCB J9 for proper connection and correct as necessary.
4. PS13 I/O check, sensor check
   • Control signal: FSCB J9<B>-12 (ON)
   • Location of electrical component: FS-539/FS-539SD 10-C
5. M8 operation check
   • Control signal: FSCB J12-13 to 16
   • Location of electrical component: FS-539/FS-539SD 7-C
6. Replace M8.
7. Replace FSCB.

 When FS-540 or FS-540SD is installed

Contents

Trouble type	C1140: Alignment motor/Rr drive malfunction (When FS-540 or FS-540SD is installed)
Rank	B
Trouble detection condition	– The alignment plate home sensor/Rr (PS6) is not turned OFF (unblocked) after the set period of time has elapsed after the plate drive starts from the home position. – The alignment plate home sensor/Rr (PS6) is not turned ON (blocked) after the set period of time has elapsed while the alignment motor/Rr (M13) is energized when the plate returned to the home position. – The plate does not reach the specified position within the set period of time.
Trouble isolation	–
Relevant electrical parts	– Alignment motor/Rr (M13) – Alignment plate home sensor/Rr (PS6) – FS control board (FSCB)

Procedure

1. Check the connector between M13-relay CN3-FSCB J21 for proper connection and correct as necessary.
2. Check the connector of M13 for proper drive coupling and correct as necessary.
3. Check the connector between PS6-relay CN4-relay CN3-FSCB J21 for proper connection and correct as necessary.
4. PS6 I/O check, sensor check
   • Control signal: FSCB J21-10 (ON)
   • Location of electrical component: FS-540/FS-540SD 4-D
5. M13 operation check
   • Control signal: FSCB J21-1 to 4
   • Location of electrical component: FS-540/FS-540SD 4-D
6. Replace M13.
7. Replace FSCB.

(Link to the Field Service Manual)