Field Service Ver. 2.0 Mar. 2006
22. Jam Display
295
bizhub C250P
T
roubleshooting
22.4.4
Misfeed at Tray 2 feed, Tray 2 vertical transport section
A. Detection Timing
B. Action
Type
Description
Detection of
misfeed at Tray 2
feed section
The leading edge of the paper does not block the Tray 2 Vertical Transport Sensor
(PC8-PC) even after the lapse of a given period of time after the Tray 2 Paper
Feed Motor (M1-PC) has been energized.
Detection of
misfeed at Tray 2
vertical transport
section
The Registration Roller Sensor (PC1) is not blocked even after the lapse of a
given period of time after the paper has blocked the Tray 2 Vertical Transport Sen-
sor (PC8-PC).
Tray 2 Vertical Transport Sensor (PC8-PC) does not transmit the paper even after
the lapse of a given period of time after the paper has blocked PC8-PC.
Tray 2 Vertical
Transport section
Loop Registration
Reversing JAM
Rise timing of load for registration is earlier than the one for making the loop at
front of the Registration Roller at Tray 2 feed.
Detection of paper
left in Tray 2
Tray 2 Vertical Transport Sensor (PC8-PC) is blocked when the Main Power
Switch is turned ON, a door or cover is opened and closed, or a misfeed or mal-
function is reset.
Tray 2 Paper Take-Up Sensor (PC9-PC) is blocked when the Main Power Switch
is turned ON, a door or cover is opened and closed, or a misfeed or malfunction is
reset.
Relevant Electrical Parts
Tray 2 Paper Take-Up Sensor (PC9-PC)
Tray 2 Vertical Transport Sensor (PC8-PC)
Registration Roller Sensor (PC1)
Tray 2 Paper Feed Motor (M1-PC)
Tray 2 Control Board (PWB-Z-PC)
Mechanical Control Board (PWB-M)
Step
Action
1
Initial check items
2
PC9-PC I/O check, Sensor check
3
PC8-PC I/O check, Sensor check
4
PC1 I/O check, Sensor check
5
M1-PC operation check
6
Change PWB-Z-PC
7
Change PWB-M
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