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C6104,C6105 (bizhub 950i/850i)

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Trouble type– C6104: Back side cleaning home sensor abnormality (initial)

– C6105: Back side cleaning home sensor abnormality (normal)
RankB
Trouble detection conditionC6104:
– The CIS cleaning sensor (PS9) does not change from H to L even after the lapse of a given period of time after the home position detecting operation is started at the initial operation.

-The CIS cleaning sensor (PS9) does not change from L to H even after the lapse of a given period of time after the home position detecting operation is started at the initial operation.
C6105: At the time of operation other than the initial operation, the CIS cleaning sensor (PS9) error is detected.
Trouble isolationScanner
Relevant electrical parts– CIS cleaning sensor (PS9)
– CIS cleaning motor (M7)
– DF control board (DFCB)

Procedure

  1. Check if the opening and closing guide is firmly closed.
  2. Check the connector between M7-relay CN61-DFCB CN14 for proper connection and correct as necessary.
  3. Check the connector of M7 for proper drive coupling and correct as necessary.
  4. Check the connector between PS9-relay CN121-DFCB CN18 for proper connection and correct as necessary.
  5. PS9 I/O check, sensor check
    • Control signal: DFCB CN18-6 (ON)
    • Location of electrical component: DF 4-C
  6. M7 load check
    • Check code: 60
    • Multi code: 769, 770, 771
    • Control signal: DFCB CN14-6 to 9
    • Location of electrical component: DF 7-C
  7. Replace M7.
  8. DFCB ICP4, ICP7, ICP15 conduction check
  9. Replace DFCB.

(Link to the Field Service Manual)

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