Tray2 Feed Section/Vertical Transport Section Misfeed - Konica Minolta bizhub C200 Service Manual

6. Jam display
6.4.2

Tray2 feed section/vertical transport section misfeed

A. Detection timing
Type
Tray2 feed section/
section misfeed
detection
Tray2 vertical trans-
port section misfeed
detection
Tray2 vertical trans-
port section loop reg-
istration reversing jam
Detection of paper left
in tray 2
Tray2 feed section
image write start sig-
nal permit waiting jam
B. Action
Paper take-up sensor (PS9)
Vertical transport sensor (PS8)
Sensor in front of tim. Roller (PS1)
Paper feed motor (M1)
Step
1 Initial check items
2 PS9 I/O check, sensor check
3 PS8 I/O check, sensor check
4 PS1 I/O check, sensor check
5 M1 operation check
6 PCCB replacement
7 PRCB replacement
32
• The leading edge of the paper does not block the vertical transport sensor
(PS8) even after the set period of time has elapsed after the Paper feed motor
(M1) is energized.
• The sensor in front of tim. Roller (PS1) is not blocked even after the lapse of a
given period of time after the vertical transport sensor (PS8) has been
blocked by a paper.
• The vertical transport sensor (PS8) is not unblocked even after the lapse of a
given period of time after the vertical transport sensor (PS8) has been
blocked by a paper.
• Rise timing of load for registration is earlier than the one for making the loop
at front of the registration roller at tray2 paper feed.
• The vertical transport sensor (PS8) 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 take-up sensor (PS9) 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.
• For paper fed from the tray2, image write start signal permit continues to be
disabled for a predetermined period of time after the timing of image write
start signal output.
Relevant electrical parts
Action
Field Service Ver. 1.0 Jun. 2008
Description
PC control board (PCCB)
Printer control board (PRCB)
WIRING DIAGRAM
Control signal
—
PCCB PJ6-8 (ON)
PCCB PJ6-11 (ON)
PRCB CN1-3 (ON)
PCCB PJ5-1 to 4
—
—
Location
(Electrical
components)
—
PC-105 G-4
PC-105 G-4
bizhub C200
C to D-19
PC-105 B-3
—
—