Tray4 Feed Section/Vertical Transport Section Misfeed (Pc-204) - Konica Minolta bizhub C353P Service Manual

Field Service Ver. 1.0 Oct. 2007
8.3.3

Tray4 feed section/vertical transport section misfeed (PC-204)

A. Detection timing
Type
The leading edge of the paper does not block the tray4 vertical transport sensor
(PS126) even after the set period of time has elapsed after the tray4 paper feed
Tray4 feed section/
motor (M123) is energized.
vertical transport
section misfeed
The tray3 vertical transport sensor (PS117) is not blocked even after the lapse of
detection
a given period of time after the tray4 vertical transport sensor (PS126) has been
blocked by a paper.
Tray4 vertical trans- Rise timing of load for registration is earlier than the one for making the loop at
port section loop front of the timing roller at tray 4 paper feed.
registration revers-
ing jam
The tray4 vertical transport sensor (PS126) is blocked when the power switch is
set to ON, a door or cover is opened and closed, or a misfeed or malfunction is
Tray4 detection of
reset.
paper remaining
The tray4 paper feed sensor (PS125) is blocked when the power switch is set to
ON, a door or cover is opened and closed, or a misfeed or malfunction is reset.
Misfeed detected The tray4 vertical transport sensor (PS126) is not unblocked even after the lapse
as a result of of a given period of time after PS126 has been blocked by a paper.
delayed deactiva-
tion of sensor
B. Action
Tray4 paper feed sensor (PS125)
Tray4 vertical transport sensor (PS126)
Tray3 vertical transport sensor (PS117)
Tray4 paper feed motor (M123)
Sensor in front of tim. roller (PS23)
Step
1 Initial check items
2 PS23 I/O check, sensor check
3 PS125 I/O check, sensor check
4 PS126 I/O check, sensor check
5 PS117 I/O check, sensor check
6 M123 operation check
7 PCCB replacement
Relevant electrical parts
Action
Description
PC control board (PCCB)
WIRING DIAGRAM
Control signal
—
PRCB CN1PRCB-3 (ON)
PCCB PJ10PCCB-8 (ON)
PCCB PJ11PCCB-2 (ON)
PCCB PJ6PCCB-11 (ON)
PCCB PJ9PCCB-1 to 4
—
8. Jam display
Location
(Electrical
components)
—
bizhub C353P
D-18
PC-204 G-5
PC-204 G-5
PC-104, PC-204
B-2
PC-204 G-6
—
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