P-22 (bizhub C750i)

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Contents

Malfunction typeColor regist adjust failure
Malfunction codeP-22
Malfunction detection timing-The gap between maximum and minimum value of deviations among each color (the values before averaging) is over the predetermined value.

-Average deviation exceeds the predetermined value.

-In case the final value of the deviation after stabilization exceeds the predetermined value, it is regarded as failure even if the average deviation is within tolerance.
Relevant parts-Drum unit/Y,M,C,K
-Developing unit/Y,M,C,K
-IDC sensor/Fr (IDCS/Fr)
-IDC sensor/Rr (IDCS/Rr)
-Base board (BASEB)

Procedure

  1. Slide out the drum/developing unit and reinstall it in position.
  2. Reinstall or reconnect IDCS/Fr, connectors connecting between IDCS/Fr-relay CN77-BASEB CN15E, if any of the foregoing parts is installed or connected improperly.
  3. Reinstall or reconnect IDCS/Rr, connectors connecting between IDCS/Rr-relay CN77-BASEB CN15E, if any of the foregoing parts is installed or connected improperly.
  4. Check the vertical transport guide for installed position and correct as necessary.
  5. Replace BASEB. (Part# ACKNH02101)

(Link to the Field Service Manual)