C2204 (bizhub 950i/850i)

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Trouble typeC2204: Waste toner transport motor failure to turn
RankB
Trouble detection conditionThe waste toner lock sensor (PS23) is kept ON (blocking) or OFF (unlocking) for a predetermined continuous period of time while the motor is turning.
Trouble isolation–
Relevant electrical parts– Waste toner locked sensor (PS23)
– Waste toner transport motor (M20)
– PH relay board (PHRYB)
– CPU board (CPUB)
– Base board (BASEB)

Procedure

  1. Clean the PS23 if it has toner or paper dust, etc.
  2. Replacing the waste toner box.
  3. Check the connector between M20-PHRYB CN4 for proper connection and correct as necessary.
  4. Check the connector of M20 for proper drive coupling and correct as necessary.
  5. Check the connector between PS23-BASEB CN27E for proper connection and correct as necessary.
  6. Check CPUB for proper installation and correct as necessary.
  7. PS23 I/O check, sensor check
    • Control signal: BASEB CN27E<A>-9 (ON)
    • Location of electrical component: 15-C
  8. M20 load check
    • Check code: 44
    • Multi code: 0
    • Control signal: PHRYB CN4-3 to 6
    • Location of electrical component: 5-B
  9. Replace M20.
  10. PHRYB F2 conduction check.
  11. Replace PHRYB.
  12. Replace CPUB.
  13. Replace BASEB.

(Link to the Field Service Manual)