Minolta CF2002, Light print P codes ??

[copyman]

P-6,7,8,9, near warnings and pages are light. All
new IU's. Cleaned everything. Image good on transfer belt
when stopped during operation. I was thinking
transfer roller but not sure if that would cause
the P codes?

Thanks for any help

[copier addict]

This is from the manual.

(3) P-6: Cyan IU failure
(4) P-7: Magenta IU failure
(5) P-8: Yellow IU failure
(6) P-9: Black IU failure
<Detection Timing>
<Action>
Warning Code Description
P-6
All density readings taken from the density pattern produced on the
Transfer Belt are 0.4 V (AIDC Sensor photoreceiver output) or less
during max. density adjustment (Vg/Vb adjustment).
P-7
P-8
P-9
Relevant Electrical Parts
IU (C)
IU (M)
IU (Y)
IU (Bk)
Image Transfer Belt Unit
Step Action
1
Select “Image Adjust” → “PRT Max Density” and, if the setting value is negative,
readjust.
2 Check the drive transmission portion of the IU and correct as necessary.
3 Clean the AIDC Sensor window if dirty.
4 Clean the contact of the IU connector if dirty.
5 Change IU.
6 Change the Image Transfer Belt Unit.


Hope it helps.