1St Drawer Take-Up, Fusing Misfeed - Konica Minolta bizhub C350 Service Manual

bizhub C350 Field Service Ver2.0 Sep. 2004
1.3.2

1st Drawer take-up, Fusing Misfeed

A. Detection Timing
Type
The leading edge of the paper does not block the Exit Sensor (PC30) even after
the lapse of a given period of time after the Synchronizing Roller Clutch has been
2nd Image Transfer,
energized.
Fusing misfeed
detection
The Synchronizing Roller Sensor (PC28) is not unblocked even after the lapse of
a given period of time after it has been blocked by the paper.
The leading edge of the paper does not block the Synchronizing Roller Sensor
1st Drawer take-up
(PC28) even after the lapse of a given period of time after the 1st Drawer Paper
misfeed detection
Take-Up Clutch (CL1) has been energized.
Misfeed detected
as a result of The Synchronizing Roller Sensor (PC28) is not unblocked even after the lapse of
delayed deactiva- a given period of time after it has been blocked by the paper.
tion of sensor
The Synchronizing Roller Sensor (PC28) is blocked when the Power Switch is
turned ON, a door or cover is opened and closed, or a misfeed or malfunction is
Detection of paper
reset.
left in 2nd Image
Transfer
The OHP Sensor (PC27) is blocked when the Power Switch is turned ON, a door
or cover is opened and closed, or a misfeed or malfunction is reset.
Detection of paper Tray 1 Double Feed Sensor (PC1) is blocked when the Power Switch is turned
left in 1st Drawer ON, a door or cover is opened and closed, or a misfeed or malfunction is reset.
B. Action
Tray 1 Double Feed Sensor (PC1)
Synchronizing Roller Sensor (PC28)
Exit Sensor (PC30)
OHP Sensor (PC27)
Synchronizing Roller Clutch (CL3)
1st Drawer Paper Take-Up Clutch (CL1)
Step
1 Initial check items
2 PC1 I/O check, Sensor check
3 PC28 I/O check, Sensor check
4 PC30 I/O check, Sensor check
5 PC27 I/O check, Sensor check
6 CL3 operation check
7 CL1 operation check
Change
8 PWB-MC
Relevant Electrical Parts
Control Board (PWB-MC)
Action
Description
WIRING DIAGRAM
Control Signal
—
PWB-MC PJ14MC-7B (ON)
PWB-MC PJ12MC-6A (ON)
PWB-MC PJ12MC-12 (ON)
PWB-MC PJ12MC-2 (ON)
PWB-MC PJ12MC-13 (ON)
PWB-MC PJ14MC-10B (ON)
—
Jam Display
Location
(Electrical
Component)
—
K-7
R-2
S-2
R-2
S-2
L-7
—
4-5