C6102 (bizhub 4750i/4050i)

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Trouble typeC6102: Drive system home sensor malfunction
RankB
Trouble detection condition– The scanner home sensor (PS21) is unable to detect the scanner located at its home position.

– The scanner home sensor (PS21) is unable to detect a scanner even when the scanner motor (M9) has been driven to move the scanner over the maximum travelling distance.

– The scanner home sensor (PS21) detects the scanner when the scanner has moved the maximum travelling distance from the position, at which it blocks the scanner home sensor (PS21).
Trouble isolationScanner
Relevant electrical parts-Scanner home sensor (PS21)
-Scanner motor (M9)
-CPU board (CPUB)
-Base board (BASEB)

Procedure

  1. Correct or change the scanner drive (pulley, gear, belt) if it is faulty.
  2. Correct the scanner motor set screw if loose.
  3. Adjust [Image Position: Leading Edge] and [Sub Scan Zoom Adj.].
  4. Check the connector between M9-BASEB CN9E for proper connection and correct as necessary.
  5. Check the connector between PS21-BASEB CN8E for proper connection and correct as necessary.
  6. Check CPUB for proper installation and correct as necessary.
  7. PS21 I/O check, sensor check
    • Control signal: BASEB CN8E-6 (ON)
    • Location of electrical component: 23-K
  8. M9 operation check
    • Control signal: BASEB CN9E-1 to 4
    • Location of electrical component: 22-K
  9. Replace CPUB. (Part# ACT9H01003)
  10. BASEB F10E or F16E conduction check.
  11. Replace BASEB.
    4750i (Part# ACT9H02013)
    4050i (Part# ACT9H02002)

(Link to the Field Service Manual)