Field Service Ver. 2.0 Mar. 2006
22. Jam Display
301
bizhub C250P
T
roubleshooting
22.4.10
Misfeed at Duplex Unit pre-registration section (AD-503)
A. Detection Timing
B. Action
Type
Description
Detection of
misfeed at Duplex
pre-registration
section
The Registration Roller Sensor (PC1) is not blocked even after the lapse of a
given period of time after a Duplex paper feed sequence has been started.
Duplex Unit Pre-
registration section
Loop Registration
Reversing JAM
detection
Rise timing of load for registration is earlier than the one for making the loop at
front of the Registration Roller at pre-registration feed.
Relevant Electrical Parts
Registration Roller Sensor (PC1)
Duplex Unit Switchback Motor (M1 DU)
Duplex Unit Transport Motor (M2 DU)
Duplex Control Board (PWB-A DU)
Mechanical Control Board (PWB-M)
Step
Action
1
Initial check items
2
PC1 I/O check, Sensor check
3
M1 DU operation check
4
M2 DU operation check
5
Change PWB-A DU
6
Change PWB-M
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