C7316 (bizhub 950i/850i)

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Trouble typeC7316: Fusing edge cooling fan/3 failure, Fusing edge cooling fan/4 failure
RankC
Trouble detection conditionAfter starting the fan, an error is detected for the malfunction detection signal.
Trouble isolation–
Relevant electrical parts– Fusing edge cooling fan/3 (FM30)
– Fusing edge cooling fan/4 (FM31)
– Paper feed/transport drive board (PFTDB)

Procedure

  1. Check the connector between FM30-relay CN833-relay CN166B-PFTDB CN31 for proper connection and correct as necessary.
  2. Check the connector between FM31-relay CN834-relay CN166B-PFTDB CN31 for proper connection and correct as necessary.
  3. Check the connector of FM30 for proper drive coupling and correct as necessary.
  4. Check the connector of FM31 for proper drive coupling and correct as necessary.
  5. FM30 conduction check.
    • Control signal: PFTDB CN31-7 (REM), PFTDB CN31-8 (LOCK)
    • Location of electrical component: 5-P
  6. Replace FM30.
  7. FM31 conduction check.
    • Control signal: PFTDB CN31-10 (REM), PFTDB CN31-11 (LOCK)
    • Location of electrical component: 5-P
  8. Replace FM31.
  9. Replace PFTDB.

(Link to the Field Service Manual)