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C7623 (bizhub 950i/850i)

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Trouble typeC7623: Power line B3 error
RankC
Trouble detection conditionThe fuse detection unit detected an error for a predetermined time.
Trouble isolation–
Relevant electrical parts– Tray 1 vertical transport motor (M5)
– Tray 2 vertical transport motor (M7)
– Paper feed/transport drive board (PFTDB)

Procedure

  1. PFTDB F27 conduction check.
  2. Check the connector between M5-PFTDB CN10 for proper connection and correct as necessary.
  3. Check the connector between M7-PFTDB CN10 for proper connection and correct as necessary.
  4. M5 load check
    • Check code: 28
    • Multi code: 9, 10, 11, 12
    • Control signal: PFTDB CN10-5 to 8
    • Location of electrical component: 18-P
  5. Replace M5.
  6. M7 load check
    • Check code: 28
    • Multi code: 13, 14, 15, 16
    • Control signal: PFTDB CN10-9 to 12
    • Location of electrical component: 18-P
  7. Replace M7.
  8. Replace PFTDB.

(Link to the Field Service Manual)

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