Tray4 Feed Section/Vertical Transport Section Misfeed (Pc-204) - Konica Minolta bizhub C200 Service Manual

Field Service Ver. 1.0 Jun. 2008
6.3.3

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
Tray4 feed section/
vertical transport
section misfeed • The tray3 vertical transport sensor (PS117) is not blocked even after the lapse
detection
Tray 4 vertical
transport section • Rise timing of load for registration is earlier than the one for making the loop at
loop registration
reversing jam
• The tray4 vertical transport sensor (PS126) is blocked when the main power
Tray4 detection of
paper remaining • The tray4 paper feed sensor (PS125) is blocked when the main power switch is
Misfeed detected
as a result of • The tray4 vertical transport sensor (PS126) is not unblocked even after the
delayed deactiva-
tion of sensor
Tray4 feed section
• For paper fed from the tray4, image write start signal permit continues to be dis-
image write start
signal permit wait-
ing jam
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 (PS1)
Step
1 Initial check items
2 PS1 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
(PS126) even after the set period of time has elapsed after the tray4 paper feed
motor (M123) is energized.
of a given period of time after the tray4 vertical transport sensor (PS126) has
been blocked by a paper.
front of the timing roller at tray 4 paper feed.
switch is set to ON, a door or cover is opened and closed, or a misfeed or mal-
function is reset.
set to ON, a door or cover is opened and closed, or a misfeed or malfunction is
reset.
lapse of a given period of time after PS126 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
Description
PC control board (PCCB)
WIRING DIAGRAM
Control signal
—
PRCB CN1-3 (ON)
PCCB PJ10-8 (ON)
PCCB PJ11-2 (ON)
PCCB PJ6-11 (ON)
PCCB PJ9-1 to 4
—
6. Jam display
Location
(Electrical
components)
—
bizhub C200
C to D-19
PC-204 G-5
PC-204 G-5 to 6
PC-104, PC-204
B-2
PC-204 G-6
—
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