Tray4 Paper Take-Up Section/Vertical Transport Section Misfeed (Pc-202) - Konica Minolta bizhub C450 Service Manual

Field Service Ver. 1.0 Mar. 2005
7.3.3 Tray4 Paper Take-Up section/Vertical Transport section misfeed
(PC-202)
A. Detection timing
Type
The leading edge of the paper does not block the Tray4 Vertical Transport Sensor
(PC126-PF) even after the set period of time has elapsed after the Tray4 Paper
Feed Motor (M123-PF) is energized.
Tray4 Paper Take-
Up section/Vertical The Tray3 Vertical Transport Sensor (PC117-PF) is not blocked even after the
transport section lapse of a given period of time after the Tray4 Vertical Transport Sensor (PC126-
misfeed detection PF) has been blocked by a paper.
The Tray4 Vertical Transport Sensor (PC126-PF) is not unblocked even after the
lapse of a given period of time after PC126-PF has been blocked by a paper.
The Tray4 Vertical Transport Sensor (PC126-PF) is blocked when the Main Power
Switch is set to ON, a door or cover is opened and closed, or a misfeed or mal-
Tray4
function is reset.
detection of paper
The Tray4 Paper Take-Up Sensor (PC125-PF) is blocked when the Main Power
remaining
Switch is set to ON, a door or cover is opened and closed, or a misfeed or mal-
function is reset.
B. Action
Tray4 Paper Take-Up Sensor (PC125-PF)
Tray4 Vertical Transport Sensor (PC126-PF)
Tray3 Vertical Transport Sensor (PC117-PF)
Tray4 Paper Feed Motor (M123-PF)
Step
1 Initial check items
2 PC125-PF I/O, sensor check
3 PC126-PF I/O, sensor check
4 PC117-PF I/O, sensor check
5 M123-PF operation check
6 PWB-C2 PF replacement
Relevant electrical parts
Action
PWB-C2 PF PJ10C2 PF-8 (ON)
PWB-C2 PF PJ11C2 PF-2 (ON)
PWB-C2 PF PJ6C2 PF-11 (ON)
Description
Main Control Board (PWB-C2 PF)
WIRING DIAGRAM
Control signal
—
PWB-C2 PF PJ9C2 PF-1 to 4
—
7. Jam Display
Location
(Electrical compo-
nents)
—
PC202 G to H-6
PC202 G to H-6
PC202 C-4
PC202 G to H-
6 to 7
—
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