C11A2 (bizhub C750i)

Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.

When FS-539 or FS-539SD is installed

Contents

Trouble type	C11A2: Receiving roller retraction motor drive malfunction (When FS-539 or FS-539SD is installed)
Rank	B
Trouble detection condition	The receiving roller retraction sensor (PS11) is not turned OFF (blocked) or ON (unblocked) even after the set period of time has elapsed after the receiving roller retraction motor (M4) is energized.
Trouble isolation	–
Relevant electrical parts	-Receiving roller retraction motor (M4) -Receiving roller retraction sensor (PS11) -FS control board (FSCB)

Procedure

1. Check the connector between M4-FSCB J4 for proper connection and correct as necessary.
2. Check the connector of M4 for proper drive coupling and correct as necessary.
3. Check the connector between PS11-FSCB J5 for proper connection and correct as necessary.
4. PS11 I/O check, sensor check
   • Control signal: FSCB J5-6 (ON)
   • Location of electrical component: FS-539/FS-539SD 16-K
5. M4 operation check
   • Control signal: FSCB J4<A>-1 to 4
   • Location of electrical component: FS-539/FS-539SD 13-C
6. Replace M4. (Part# A3EPPP5600)
7. Replace FSCB. (Part# A3EP560100)

 When FS-540 or FS-540SD is installed

Contents

Trouble type	C11A2: Receiving roller retraction motor drive malfunction (When FS-540 or FS-540SD is installed)
Rank	B
Trouble detection condition	The receiving roller retraction sensor (PS22) is not turned OFF (blocked) or ON (unblocked) even after the set period of time has elapsed after the receiving roller retraction motor (M10) is energized.
Trouble isolation	–
Relevant electrical parts	-Receiving roller retraction motor (M10) -Receiving roller retraction sensor (PS22) -FS control board (FSCB)

Procedure

1. Check the connector between M10-FSCB J12 for proper connection and correct as necessary.
2. Check the connector of M10 for proper drive coupling and correct as necessary.
3. Check the connector between PS22-FSCB J12 for proper connection and correct as necessary.
4. PS22 I/O check, sensor check
   • Control signal: FSCB J12<B>-3 (ON)
   • Location of electrical component: FS-540/FS-540SD 15-D
5. M10 operation check
   • Control signal: FSCB J12<A>-15 to 16
   • Location of electrical component: FS-540/FS-540SD 15-D
6. Replace M10. (Part# A87HPPC200)
7. Replace FSCB. (Part# AAR5PPE200)

(Link to the Field Service Manual)