Initial Check Items; Tray3 Feed Section/Vertical Transport Section Misfeed (Pc-104/204) - Konica Minolta bizhub C200 Service Manual

6. Jam display
6.3.2

Tray3 feed section/vertical transport section misfeed (PC-104/204)

A. Detection timing
Type
Tray3 feed section/
vertical transport sec-
tion misfeed detection
Tray 3 vertical trans-
port section loop reg-
istration reversing jam
Tray3 detection of
paper remaining
Misfeed detected as a
result of delayed
deactivation of sensor
Tray3 feed section
image write start sig-
nal permit waiting jam
B. Action
Tray3 paper feed sensor (PS116)
Tray3 vertical transport sensor (PS117)
Vertical transport sensor (PS8)
Tray3 paper feed motor (M122)
Sensor in front of tim. roller (PS1)
Step
1

Initial check items

2 PS1 I/O check, sensor check
3 PS116 I/O check, sensor check
4 PS117 I/O check, sensor check
5 PS8 I/O check, sensor check
6 M122 operation check
7 PCCB replacement
26
• The leading edge of the paper does not block the tray3 vertical transport sen-
sor (PS117) even after the set period of time has elapsed after the tray3
paper feed motor (M122) is energized.
• The vertical transport sensor (PS8) is not blocked even after the lapse of a
given period of time after the tray3 vertical transport sensor (PS117) 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 tray 3 paper feed.
• The tray3 vertical transport sensor (PS117) 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 tray3 paper feed sensor (PS116) is blocked when the main power switch
is set to ON, a door or cover is opened and closed, or a misfeed or malfunc-
tion is reset.
• The tray3 vertical transport sensor (PS117) is not unblocked even after the
lapse of a given period of time after PS117 has been blocked by a paper.
• For paper fed from the tray3, 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)
WIRING DIAGRAM
Control signal
—
PRCB CN1-3 (ON)
PCCB PJ6-8 (ON)
PCCB PJ6-11 (ON)
PCCB PJ6-11 (ON)
PCCB PJ5-1 to 4
—
Location
(Electrical
components)
—
bizhub C200
C to D-19
PC-104, PC-204
B-2
PC-104, PC-204
B-2
PC-105 G-4
PC-104, PC-204
B-3
—