C0208 (bizhub C750i)

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Trouble typeC0208: Tray 4 feeder up/down abnormality
RankB
Trouble detection conditionThe tray 4 upper limit sensor (PS166) is not turned ON (blocked) even after the set period of time has elapsed after the paper lift-up operation for the drawer began.
Trouble isolationTray 4
Relevant electrical parts-Tray 4 lift-up motor (M144)
-Tray 4 upper limit sensor (PS166)
-PC control board (PCCB)
-CPU board (CPUB)Base board (BASEB)

Procedure

  1. Remove the tray and check to see if a piece of paper is not left inside the machine.
  2. Check the connector between M144-PCCB CN6 for proper connection and correct as necessary.
  3. Check the connector of M144 for proper drive coupling and correct as necessary.
  4. Check the connector between PS166-relay CN47-PCCB CN4 for proper connection and correct as necessary.
  5. Check CPUB for proper installation and correct as necessary.
  6. PS166 I/O check, sensor check
    • Control signal: PCCB CN4-3 (ON)
    • Location of electrical component: PC-417 4-C
  7. M144 load check
    • Check code: 23
    • Multi code: 7
    • Control signal: PCCB CN6-9 to 10
    • Location of electrical component: PC-417 5-K
  8. Replace M144. (Part# A2X0M12101)
  9. PCCB PS301 conduction check
  10. Replace PCCB. (Part# AAV5H01401)
  11. Replace CPUB. (Part# ACKNH02P03)
  12. Replace BASEB. (Part# ACKNH02101)

(Link to the Field Service Manual)