Misfeed At Lct Feed And Lct Vertical Transport Section (Pc-403) - Konica Minolta bizhub C250P Service Manual

Field Service Ver. 2.0 Mar. 2006
22.4.6

Misfeed at LCT feed and LCT vertical transport section (PC-403)

A. Detection Timing
Type
Detection of The leading edge of the paper does not block the Paper Take-up Sensor (PC1-
misfeed at LCT LCT) or Vertical Transport Sensor (PC2-LCT) even after the lapse of a given
feed section period of time after the Take-up Motor (M1-LCT) has been energized.
Detection of The Tray 2 Vertical Transport Sensor (PC8-PC) is not blocked even after the lapse
misfeed at LCT of a given period of time after the paper has blocked the Vertical Transport Sensor
vertical transport (PC2-LCT).
section
The Vertical Transport Sensor (PC2-LCT) is not unblocked even after the lapse of
a given period of time after it has been blocked by the paper.
LCT Vertical Rise timing of load for registration is earlier than the one for making the loop at
Transport section front of the Registration Roller at LCT feed.
Loop Registration
Reversing JAM
Detection of paper The Vertical Transport Sensor (PC2-LCT) is blocked when the Main Power Switch
left in LCT is turned ON, a door or cover is opened and closed, or a misfeed or malfunction is
reset.
B. Action
Paper Take-up Sensor (PC1-LCT)
Vertical Transport Sensor (PC2-LCT)
Tray 2 Vertical Transport Sensor (PC8-PC)
Take-up Motor (M1-LCT)
Registration Roller Sensor (PC1)
Step
1 Initial check items
2 PC1 I/O check, Sensor check
3 PC1-LCT I/O check, Sensor check
4 PC2-LCT I/O check, Sensor check
5 PC8-PC I/O check, Sensor check
6 M1-LCT operation check
7 Change PWB-C1 LCT
8 Change PWB-M
Description
Relevant Electrical Parts
Control Board (PWB-C1 LCT)
Mechanical Control Board (PWB-M)
Action
22. Jam Display
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