Solution; Ccd Clamp/Gain Adjustment Failure; P-5: Aidc Sensor (Front) Failure; Aidc Sensor (Back) Failure - Konica Minolta Bizhub C350 Service Manual

bizhub C350 Field Service Ver. 2.0 April 2004
2.3

Solution

2.3.1 S-1 : CCD clamp/gain adjustment failure
Scanner Assy
Step
1 Correct the harness connection between PWB-A and PWB-C if faulty.
2 Check for possible extraneous light and correct as necessary.
3 Clean the lens, mirrors, CCD surface, and shading sheet if dirty
4 Correct reflective mirror of the Scanner if faulty, or change Scanner.
5 Change PWB-A.
6 Change PWB-C.
2.3.2

P-5: AIDC Sensor (Front) failure

2.3.3 P-28 AIDC Sensor (Back) failure
AIDC / Registration Sensor /1 (PC8)
AIDC / Registration Sensor /2 (PC9)
Step
1 Wipe clean the surface of the Transfer Belt with a soft cloth, if it is dirty
2 Change the Image Transfer Belt Unit if the Transfer Belt is damaged.
3 Reinstall or reconnect PC8 or PC9 if it is installed or connected improperly.
4 Clean PC8 or PC9 if it is dirty
Open and close the Left Door, run an image stabilization sequence, and select "State Confirm"
→ "Level History 1" to check the AIDC value. AIDC1: PC8, AIDC2: PC9
5
If the value is 1.0 V or less, change PC8 or PC9.
6 Change PWB-MC
Relevant Electrical Parts
CCD Sensor Board (PWB-A)
Image Processing Board (PWB-C)
Action
Relevant Electrical Parts
Control Board (PWB-MC)
Image Transfer Belt Unit
Action
4-15
Malfunction code