Field Service Ver. 2.5 Jul. 2006
18.3.10
C2557: ATDC Sensor Failure
18.3.11
C255C: ATDC Adjustment Failure
ATDC Sensor (UN2)
Step
Check the UN2 connector for proper connection and
1
correct as necessary.
Remove the Developing Unit from the IU, and then
2
replace UN2.
3
Run F8.
4
Change PWB-A
5
Change PU1
18.3.12
C2654: EEPROM Failure
Mechanical Control Board (PWB-A)
Step
Disconnect and then connect the power cord. Turn
1
OFF the Main Power Switch, wait for 10 sec. or
more, and turn ON the Main Power Switch.
Check the EEPROM on the Mechanical Control
2
Board for proper connection, and correct as neces-
sary.
3
Change PWB-A
4
Change EEPROM
18.3.13
C2702: Abnormal Image Transfer Voltage
Transfer Roller
Step
1
Check the installation of the Transfer Roller.
2
Change HV1
Confidential – for internal use only, do not distribute
Relevant Electrical Parts
Mechanical Control Board (PWB-A)
Power Supply Unit (PU1)
Action
Relevant Electrical Parts
Action
Relevant Electrical Parts
High Voltage Unit (HV1)
Action
18. Malfunction code
WIRING DIAGRAM
Location
Control Signal
(Electrical
Component)
-
-
-
-
-
WIRING DIAGRAM
Location
Control Signal
(Electrical
Component)
-
-
-
-
WIRING DIAGRAM
Location
Control Signal
(Electrical
Component)
-
-
-
-
-
-
-
-
-
-
-
-
-
247