Malfunction code bizhub C350 Field Service Ver. 2.0 April 2004
4-40
IV
Troubleshooting
2.6.45 C0F37: Abnormally high toner density detected Black ATDC Sensor
2.6.46 C0F3A: Cyan ATDC Sensor adjustment failure
2.6.47 C0F3B: Magenta ATDC Sensor adjustment failure
2.6.48 C0F3C: Yellow ATDC Sensor adjustment failure
Relevant Electrical Parts
Imaging Unit /Bk
ATDC Sensor/Y (PWB-N1)
Control Board (PWB-MC)
MFP Control Board (PWB-MFP)
Step Action
WIRING DIAGRAM
Control Signal
Location
(Electrical
Component)
1
Correct the ATDC connection on the underside of
the Imaging Unit if faulty.
——
2
Clean or correct each contact of the Imaging Unit
if faulty.
——
3 Change Imaging Unit. — —
4 Change PWB-MC — —
5 Change PWB-MFP. — —
Relevant Electrical Parts
ATDC Sensor/C (PWB-N3)
ATDC Sensor/M (PWB-N2)
ATDC Sensor/Y (PWB-N1)
Toner Supply Motor C/Bk (M3)
Toner Supply Motor Y/M (M4)
Control Board (PWB-MC)
MFP Control Board (PWB-MFP)
Imaging Unit /C
Imaging Unit /M
Imaging Unit /Y
Step Action
WIRING DIAGRAM
Control Signal
Location
(Electrical
Component)
1
Clean the ATDC Sensor window on the
underside of the Imaging Unit if dirty
——
2 Clean the ATDC Sensor LED if dirty — —
3
Correct the contact and/or WIRING of the
ATDC Sensor if faulty.
——
4 Reinstall Imaging Unit C/M/Y. — —
5
M3, M4 operation check M3: PWB-MC PJ16MC-4A~7A
(Pulse Output)
M4: PWB-MC PJ16MC-10A~13A
(Pulse Output)
M3: 19-I
M4: 19-J
6 Change Imaging Unit. — —
7 Change PWB-MC — —
8 Change PWB-MFP. — —
FS4.fm Page 40 Tuesday, April 27, 2004 4:01 PM
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