C7312 (bizhub 4750i/4050i)

Posted
ByAdministrator Administrator
You are here:

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

Contents

Trouble typeC7312: Toner suction fan failure
RankC
Trouble detection conditionAfter starting the fan, an error is detected for the malfunction detection signal.
Trouble isolation–
Relevant electrical parts-Toner suction fan (FM2)
-Base board (BASEB)

Procedure

  1. Check the connector between FM2-relay CN10-BASEB CN18E for proper connection and correct as necessary.
  2. Check the connector of FM2 for proper drive coupling and correct as necessary.
  3. FM2 conduction check
    • Control signal: BASEB CN18E-14 (REM), BASEB CN18E-16 (LOCK)
    • Location of electrical component: 3-C
  4. Replace FM2. (Part# A93EM10600)
  5. Replace BASEB.
    4750i (Part# ACT9H02013)
    4050i (Part# ACT9H02002)

(Link to the Field Service Manual)