Tray3 Paper Take-Up Section/Vertical Transport Section Misfeed (Pc-103/Pc-203) - Konica Minolta bizhub C250 Service Manual

7. Jam Display
7.3.2 Tray3 Paper Take-Up section/Vertical Transport section misfeed
(PC-103/PC-203)
A. Detection timing
Type
The leading edge of the paper does not block the Tray3 Vertical Transport Sensor
(PC117-PC) even after the set period of time has elapsed after the Tray3 Take-up
Tray3 Paper Take-
Motor (M122-PC) is energized.
Up section/Vertical
transport section
The Tray2 Vertical Transport Sensor (PC8-PC) is not blocked even after the lapse
misfeed detection
of a given period of time after the Tray3 Vertical Transport Sensor (PC117-PC)
has been blocked by a paper.
Tray 3 Vertical Rise timing of load for registration is earlier than the one for making the loop at
Transport section front of the Registration Roller at Tray 3 take-up.
Loop Registration
Reversing JAM
The Tray3 Vertical Transport Sensor (PC117-PC) is blocked when the Main Power
Switch is set to ON, a door or cover is opened and closed, or a misfeed or mal-
function is reset.
Tray3 detection of
paper remaining
The Tray3 Take-up Sensor (PC116-PC) 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.
Misfeed detected The Tray3 Vertical Transport Sensor (PC117-PC) is not unblocked even after the
as a result of lapse of a given period of time after PC117-PC has been blocked by a paper.
delayed deactiva-
tion of sensor
B. Action
Tray3 Take-up Sensor (PC116-PC)
Tray3 Vertical Transport Sensor (PC117-PC)
Tray2 Vertical Transport Sensor (PC8-PC)
Tray3 Take-up Motor (M122-PC)
Registration Roller Sensor (PC1)
Step
1 Initial check items
2 PC1 I/O, sensor check
3 PC116-PC I/O, sensor check
4 PC117-PC I/O, sensor check
5 PC8-PC I/O, sensor check
6 M122-PC operation check
7 PWB-C2 PC replacement
22
Relevant electrical parts
Action
PWB-C2 PC PJ6C2 PC-8 (ON)
PWB-C2 PC PJ6C2 PC-11 (ON)
PWB-C2 PC PJ5C2 PC-1 to 4
Field Service Ver. 1.0 Jul. 2005
Description
Control Board (PWB-C2 PC)
WIRING DIAGRAM
Control signal
—
PWB-M CNSEN-8 (ON)
PWB-Z-PC PJ6Z PC-11 (ON)
—
Location
(Electrical
components)
—
C250 C-3
PC-103, PC-203
C-4
PC-103, PC-203
C-4
C250 S-25
PC-103, PC-203
C-4
—