Ricoh TH-C1b, Руководство по обслуживанию

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10 February 2005 SERVICE CALL
4-11
Trouble-
shooting
No.
Definition
Symptom Possible Cause
Controller-to-operation panel communication error at startup 672 D
After powering on the machine,
communication between the controller
and operation panel does not begin,
or the communication is interrupted
after a normal startup.
•
Controller stalled
•
Controller board installed incorrectly
•
Defective controller board
•
Operation panel connector loose or
defective
•
Poor connection of DIMM and optional
boards on the controller board
SBU/IPU communication error 685 D
While data is sent between the
scanner and BICU board, a
communication error has occurred.
•
Defective scanner unit cable
•
Defective SBU board
•
Defective BICU board
PER command error 687 D
Some image data is transferred.
→
The controller does not report the
necessary memory address.
•
Poor connection between BICU and
controller
•
Defective BICU
•
Defective controller
Finisher jogger motor error (500-sheet finisher) 720 D
•
The finisher jogger H.P sensor
remains de-activated for a certain
time when returning to home
position.
•
The finisher jogger H.P sensor
remains activated for a certain time
when moving away from home
position.
•
Jogger HP sensor defective
•
Jogger motor defective
•
Defective finisher control board
•
Defective BICU
•
Defective IOB
•
Incorrect installation
Finisher jogger motor error (1000-sheet finisher) 722 B
The finisher jogger H.P sensor
remains de-activated for a certain
time when returning to home position.
The finisher jogger H.P sensor
remains activated for a certain time
when moving away from home
position. •
Jogger HP sensor defective
•
Jogger motor defective
•
Defective finisher control board
•
Defective BICU
•
Defective IOB
•
Incorrect installation
Finisher staple hammer motor error (1000-sheet finisher) 724 B
Stapling hammer motor jam is
detected consecutively twice after the
staple hammer motor turned on.
•
Staple jam
•
Stapler overload caused by trying to
staple too many sheets
•
Staple hammer motor defective
•
Stapler home position sensor defective
•
Defective finisher control board
•
Defective BICU
•
Defective IOB
•
Incorrect installation
Finisher stack feed-out motor error (1000-sheet finisher) 725 B
The stack feed-out motor jam is
detected consecutively twice after the
stack feed-out motor turned on.
•
Stack feed-out HP sensor defective
•
Stack feed-out motor defective
•
Defective finisher control board
•
Defective BICU
•
Defective IOB
•
Incorrect installation