2H0/2HZ-1
1-4-18
1-4-2 Self-diagnosis
(1) Self-diagnostic function
This unit is equipped with a self-diagnostic function. When a problem is detected, copying is disabled and the problem dis-
played as a code consisting of C followed by a number, indicating the nature of the problem.
A message is also displayed requesting the user to call for service.
After removing the problem, the self-diagnostic function can be reset by turning the main power switch off and back on.
List of system errors
When an unexpected error is detected for some reason, a system error will be indicated. After a system error is indicated,
the error can be cleared by turning the main power switch off and then on. If the error is detected continuously, however,
perform the operation shown in Table 1-4-1. If a system error occurs frequently, a fault may have occurred. Check the
details of the C call to take proper measures.
Table 1-4-1
In addition, it is a system error if the following error code is displayed. When an error has occurred, clear the error by
turning the main power switch off then on.
CF1XX, CF2XX, CF3XX, CF4XX, CF5XX, CF6XX, CF7XX, CFAXX, CFBXX, 0xFBXX
Partial operation control
If any of the following calls for service is detected, partial operation control will be activated. After taking measures against
the cause of trouble, run maintenance item U906 to reset partial operation control.
System error Contents Operation
0420 Optional paper feeder communication problem
System error
→ service call → partial operation
0440 Optional document finisher/built-in finisher
communication problem
System error
→ service call → partial operation
4200 BD steady-state problem
System error
→ Normal service call processing
9000 Optional DP communication problem
System error
→ service call → partial operation
Code Contents
C0420 Optional paper feeder communication problem
C0440 Optional document finisher/built-in finisher communication problem
C1010 Upper lift motor error
C1020 Lower lift motor error
C1030 Paper feeder lift motor 1 error (optional paper feeder)
C1040 Paper feeder lift motor 2 error (optional paper feeder)
C2600 Paper feeder drive motor error (optional paper feeder)
C8030 Tray upper limit detection problem (optional document finisher)
C8140 Tray elevation motor problem (optional document finisher)
C8170 Adjustment motor problem (optional document finisher)
Finisher front side registration motor problem (optional built-in finisher)
C8180 Finisher rear side registration motor problem (optional built-in finisher)
C8190 Finisher trailing edge registration motor problem (optional built-in finisher)
C8210 Stapler problem (optional document finisher)
Finisher stapler problem (optional built-in finisher)
C8440 Sensor adjusting problem (optional document finisher)
C8460 EEPROM problem (optional document finisher)
C9000 Optional DP communication problem
C9060 DP EEPROM error (optional DP)
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