Lct Paper Feed Section/Vertical Transport Section Misfeed - Konica Minolta bizhub C203 Service Manual

7. Jam display
7.3.2

LCT paper feed section/vertical transport section misfeed

A. Detection timing
Type
LCT paper feed The leading edge of the paper does not block the paper feed sensor (PS1) or the
section misfeed vertical transport sensor (PS2) even after the set period of time has elapsed after
detection the paper feed motor (M1) is energized.
LCT vertical The paper feed tray 2 vertical transport sensor (PS16) is not blocked even after
transport section the lapse of a given period of time after the vertical transport sensor (PS2) has
misfeed detection been blocked by a paper.
LCT vertical Rise timing of load for registration is earlier than the one for making the loop at
transport section front of the timing roller at LCT paper feed.
loop registration
reversing jam
The vertical transport sensor (PS2) 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.
LCT detection of
paper remaining
The paper feed sensor (PS1) 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.
The paper feed sensor (PS1) is not unblocked even after the lapse of a given
Misfeed detected
period of time after PS1 has been blocked by a paper.
as a result of
delayed deactiva-
The vertical transport sensor (PS2) is not unblocked even after the lapse of a
tion of sensor
given period of time after PS2 has been blocked by a paper.
B. Action
Paper feed sensor (PS1)
Vertical transport sensor (PS2)
Paper feed tray 2 vertical transport sensor (PS16)
Paper feed motor (M1)
Sensor in front of tim. roller (PS23)
Step
1 Initial check items
2 PS23 I/O check, sensor check
3 PS1 I/O check, sensor check
4 PS2 I/O check, sensor check
5 PS16 I/O check, sensor check
6 M1 operation check
7 PCCB replacement
8 MFPB replacement
32
Relevant electrical parts
Action
Field Service Ver. 1.0 Jul. 2007
Description
PC control board (PCCB)
MFP board (MFPB)
WIRING DIAGRAM
Control signal
—
PRCB CN1PRCB-3 (ON)
PCCB PJ5PCCB-2 (ON)
PCCB PJ5PCCB-5 (ON)
PCCB CN9PRCB-11 (ON)
PCCB PJ6PCCB-1 to 4
—
—
Location
(Electrical
components)
—
bizhub C353/
C253/C203
D-18
PC-405 F-9
PC-405 F-9
bizhub C353/
C253/C203
D-11
PC-405 F-10
—
—