P-9 (bizhub 950i/850i)
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Contents
| Malfunction type | Drum/Development unit (K) failure |
| Malfunction code | P-9 |
| Malfunction detection timing | A- ll density readings taken from the density pattern produced on the transfer belt are equal or under the predetermined value during max. density adjustment (Vg/Vdc adjustment). – All density readings taken from the density pattern produced on the transfer belt are equal or more the predetermined value during max. density adjustment (Vg/Vdc adjustment). |
| Relevant parts | – Drum unit/K – Developing unit/K – IDC sensor/Fr (IDCS/Fr)Base board (BASEB) – High voltage unit/1 (HV1) – Transfer belt unit |
Procedure
- Check the setting value in [Max Image Density Adj] of [Service Mode] -> [Imaging Process Adjustment] and, if it is negative, readjust.
- Check the drive transmission portion of the drum/developing unit and correct as necessary.
- Clean the IDCS/Fr window if dirty.
- Clean the contact of the drum/developing unit connector if dirty.
- Check the connector between HV1 CN1-BASEB CN9E for proper connection.
- Replace the drum unit.
- Replace the developing unit.
- Replace the transfer belt unit.
- Replace HV1.
- BASEB F12E or F13E conduction check.
- Replace BASEB.