2FD/2FF/2FG
1-5-20
1-5-2 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
displayed as a code consisting of "C" followed by a number between 0030 and 8500, 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 safety switches 1 or 2 off and back on.
Figure 1-5-2 Service call code display
Call for service.
012345678901234
C2000
• 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 switch off and then on. If the error is detected continuously, however, perform
the operation shown in Table 1-5-1. If a system error occurs frequently, a fault may have occurred. Check the details of the
C call to take proper measures.
System error
Contens
Operation
0420
0440
0450
0470
0610
0630
0640
3100
4000
4010
Large paper deck*/paper feeder*
communication problem
Finisher* communication problem
Mailbox* communication problem
Switchback unit* communication problem
Bitmap problem
DMA problem
Hard disk drive problem
Scanner carriage problem
Polygon motor synchronization problem
Polygon motor steady-state problem
System error
→
Normal C call processing
System error
→
Normal C call processing
System error
→
Normal C call processing
System error
→
Normal C call processing
System error
→
Normal C call processing
System error
→
Normal C call processing
System error
→
Normal C call processing
System error
→
Normal C call processing
System error
→
Normal C call processing
System error
→
Normal C call processing
Table 1-5-1 List of system errors
• 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.
C0420(Large paper deck*/paper feeder* communication problem), C0440(Finisher* communication problem), C0450(Mailbox*
communication problem), C0470(Switchback unit* communication problem), C0640(Hard disk drive problem), C1010(Upper
lift motor problem), C1020(Lower lift motor problem), C1030(Desk upper lift motor problem), C1040(Desk lower lift motor
problem), C1100(Paper deck motor 1* problem), C1110(Paper deck motor 2* problem), C1120(Deck right lift* position
problem), C1130(Deck left lift* position problem), C2600(Deck conveying motor*/desk drive motor* problem), C8010(Finisher*
paper conveying motor problem) to C8500(Mailbox* drive motor problem)
*Optional.
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