Konica Minolta Bizhub C350 Service Manual page 537

bizhub C350 Field Service Ver.1.0 Mar. 2004
1.4 Solution
1.4.1 Transport section misfeed
A. Detection timing
Type
The 1st Tray Exit Sensor (PC1-FN) is not blocked even after the lapse of a given
period of time after the leading edge of the paper has blocked the Paper Sensor
(PC1-HO) of the Horizontal Transport Unit.
The Job tray Exit Sensor (PC19-FN) is not blocked even after the lapse of a given
period of time after the leading edge of the paper has blocked the Paper Sensor
(PC1-HO) of the Horizontal Transport Unit.
Transport section
misfeed detection
The Upper Entrance Sensor (PC4-FN) is not blocked even after the lapse of a
given period of time after the leading edge of the paper has blocked the Paper
Sensor (PC1-HO) of the Horizontal Transport Unit.
The Lower Entrance Sensor (PC2-FN) is not blocked even after the lapse of a
given period of time after the leading edge of the paper has blocked the Paper
Sensor (PC1-HO) of the Horizontal Transport Unit.
B. Action
Job Tray Exit Sensor (PC19-FN)
1st Tray Exit Sensor (PC1-FN)
Paper Sensor (PC1-HO)
Upper Entrance Sensor (PC4-FN)
Lower Entrance Sensor (PC2-FN)
Storage Sensor (PC3-FN)
Entrance Motor (M1-FN)
Upper Entrance Motor (M4-FN)
Lower Entrance Motor (M2-FN)
Step
1 Initial check items
2 PC19-FN I/O, sensor check
3 PC1-FN I/O, sensor check
4 PC1-HO I/O, sensor check
5 PC4-FN I/O, sensor check
6 PC2-FN I/O, sensor check
7 PC3-FN I/O, sensor check
8 M1-FN operation check
9 M4-FN operation check
10 M2-FN operation check
11 PWB-A FN replacement
Relevant electrical parts
Action
4-3
Description
Control Board (PWB-A FN)
WIRING DIAGRAM
Control signal
-
PWB-A FN PJ14A FN-6
PWB-A FN PJ19A FN-6
PWB-A FN PJ15A FN-4
PWB-A FN PJ20A FN-9
PWB-A FN PJ19A FN-8
PWB-A FN PJ20A FN-3
-
-
-
-
Jam Display
Location
(Electrical compo-
nents)
-
B-9
G-9
D-9
H-7
H-9
H-7
B-4
B-4
A-4
E-5