Lct Paper Feed Section/Vertical Transport Section Misfeed - Konica Minolta bizhub C200 Service Manual

6. Jam display
6.3.2

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
section misfeed
detection
LCT vertical • The paper feed tray 2 vertical transport sensor (PS8) is not blocked even after
transport section
misfeed detection
LCT vertical
transport section • Rise timing of load for registration is earlier than the one for making the loop at
loop registration
reversing jam
• The vertical transport sensor (PS2) is blocked when the main power switch is
LCT detection of
paper remaining
• The paper feed sensor (PS1) is blocked when the main power switch is set to
Misfeed detected • The paper feed sensor (PS1) is not unblocked even after the lapse of a given
as a result of
delayed deactiva- • The vertical transport sensor (PS2) is not unblocked even after the lapse of a
tion of sensor
LCT feed section
• For paper fed from the LCT, image write start signal permit continues to be dis-
image write start
signal permit wait-
ing jam
B. Action
Paper feed sensor (PS1)
Vertical transport sensor (PS2)
The paper feed tray 2 vertical transport sensor
(PS8)
Paper feed motor (M1)
Sensor in front of tim. roller (PS1)
Step
1 Initial check items
2 PS1 I/O check, sensor check
3 PS1 I/O check, sensor check
4 PS2 I/O check, sensor check
5 PS8 I/O check, sensor check
6 M1 operation check
7 PCCB replacement
8 MFPB replacement
32
the vertical transport sensor (PS2) even after the set period of time has elapsed
after the paper feed motor (M1) is energized.
the lapse of a given period of time after the vertical transport sensor (PS2) has
been blocked by a paper.
front of the timing roller at LCT paper feed.
set to ON, a door or cover is opened and closed, or a misfeed or malfunction is
reset.
ON, a door or cover is opened and closed, or a misfeed or malfunction is reset.
period of time after PS1 has been blocked by a paper.
given period of time after PS2 has been blocked by a paper.
abled for a predetermined period of time after the timing of image write start
signal output.
Relevant electrical parts
Action
Field Service Ver. 2.0 Dec. 2008
Description
PC control board (PCCB)
MFP board (MFPB)
WIRING DIAGRAM
Control signal
—
PRCB CN1-3 (ON)
PCCB PJ5-2 (ON)
PCCB PJ5-5 (ON)
PCCB PJ6-11 (ON)
PCCB PJ6-1 to 4
—
—
Location
(Electrical
components)
—
bizhub C200
C to D-19
PC-405 F-9
PC-405 F-9
PC-105 G-4
PC-405 F-10
—
—