Lct Paper Take-Up Section/Vertical Transport Section Misfeed - Konica Minolta bizhub C450 Service Manual

7. Jam Display
7.3.2

LCT Paper Take-Up section/Vertical Transport section misfeed

A. Detection timing
Type
The leading edge of the paper does not block the Paper Feed Sensor (PC1-LCT)
or the LCT Vertical Transport Sensor (PC2-LCT) even after the set period of time
has elapsed after the Paper Feed Motor (M1-LCT) is energized.
The Tray 2 Vertical Transport Sensor (PC108) is not blocked even after the lapse
LCT Paper Take-Up
of a given period of time after the LCT Vertical Transport Sensor (PC2-LCT) has
section/Vertical
been blocked by a paper.
transport section
misfeed detection
The Paper Feed Sensor (PC1-LCT) is not unblocked even after the lapse of a
given period of time after PC1-LCT has been blocked by a paper.
The LCT Vertical Transport Sensor (PC2-LCT) is not unblocked even after the
lapse of a given period of time after PC2-LCT has been blocked by a paper.
The LCT Vertical Transport Sensor (PC2-LCT) is blocked when the Main Power
Switch is set to ON, a door or cover is opened and closed, or a misfeed or mal-
LCT detection of
function is reset.
paper remaining
The Paper Feed Sensor (PC1-LCT) is blocked when the Main Power Switch is set
to ON, a door or cover is opened and closed, or a misfeed or malfunction is reset.
B. Action
Paper Feed Sensor (PC1-LCT)
LCT Vertical Transport Sensor (PC2-LCT)
Tray2 Vertical Transport Sensor (PC108)
Paper Feed Motor (M1-LCT)
Step
1 Initial check items
2 PC1-LCT I/O, sensor check
3 PC2-LCT I/O, sensor check
4 PC108 I/O, sensor check
5 M1-LCT operation check
6 PWB-C1 LCT replacement
28
Relevant electrical parts
Action
PWB-C1 LCT PJ6C1 LCT-1 to 4
Field Service Ver. 1.0 Mar. 2005
Description
Main Control Board (PWB-C1 LCT)
WIRING DIAGRAM
Control signal
—
PWB-C1 LCT PJ5C1 LCT-2
(ON)
PWB-C1 LCT PJ5C1 LCT-5
(ON)
PWB-Z PJ6Z-11 (ON)
—
Location
(Electrical compo-
nents)
—
PC-402 C-8
PC-402 C-7
C450 T to U-27
PC-402 C-8
—