C7304 (bizhub 360i/300i)

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Trouble typeC7304: Toner cartridge cooling fan failure
RankC
Trouble detection conditionAfter starting the fan, an error is detected for the malfunction detection signal.
Trouble isolation–
Relevant electrical parts-Toner cartridge cooling fan (FM4)
-Expansion control board (EXCB)

Procedure

  1. Check the connector between FM4-relay CN78-EXCB CN14EX for proper connection and correct as necessary.
  2. Check the connector of FM4 for proper drive coupling and correct as necessary.
  3. FM4 conduction check.
    • Control signal: EXCB CN14EX-4 (REM), EXCB CN10EX-6 (LOCK)
    • Location of electrical component: 4-P
  4. Replace FM4. (Part# A93EM10000)
  5. Replace EXCB. (Part# AC77H00501)

(Link to the Field Service Manual)