C7616 (C4751i)

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ByEric Ditges
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Contents

Trouble typeC7616: Power line A21 error
RankC
Trouble detection conditionThe fuse detection unit detected an error for a predetermined time.
Trouble isolation–
Relevant electrical partsToner supply motor/YM (M4)Toner supply motor/CK (M5)Base board (BASEB)

Procedure

  1. BASEB F5E conduction check
  2. Check the connector between M4-BASEB CN13E for proper connection and correct as necessary.
  3. Check the connector between M5-BASEB CN13E for proper connection and correct as necessary.
  4. Replace M4.
  5. Replace M5.
  6. Replace BASEB.

(Link to the Field Service Manual)