C0B79:Punch Sensor Malfunctions - Konica Minolta bizhub C350 Service Manual

FS-601 Field Service Ver2.0 Sep. 2004
2.3.11

C0B79:Punch Sensor malfunctions

A. Detection timing
Malfunction code
The light receiving voltage is 2.5 V or less when the illuminating voltage is set to
4.4 V.
The light receiving voltage is 2.5 V or more when the illuminating voltage is set to 0
C0B79
V.
The illuminating voltage setting is 4.4 V or more after the adjustment has been
made.
B. Action
(1) Side Registration Sensor
Side Registration Home Sensor (PI2P-PK)
Step
Check the sensor connectors for proper
1
connection, and correct as necessary.
2 PI2P-PK I/O, sensor check
3 PWB-B PK replacement
(2) Wastes Full Sensor
Punch Control Board (PWB-B PK)
Punch Trash Full Photo Sensor Board (PWB-E PK)
Punch Trash Full LED Board (PWB-F PK)
Step
Check the connection condition between
1
PWB-B PK and PWB-E PK.
Check the connection condition between
2
PWB-B PK and PWB-F PK.
3 PWB-E PK replacement
4 PWB-F PK replacement
5 PWB-B PK replacement
Relevant electrical parts
Action
Relevant electrical parts
Action
Description
Punch Control Board (PWB-B PK)
WIRING DIAGRAM
Control signal
-
PWB-B PK J1006 PK-3
-
WIRING DIAGRAM
Control signal
-
-
-
-
-
Trouble code
Location
(Electrical compo-
nents)
-
C-2
C-1
Location
(Electrical compo-
nents)
-
-
A-3
A-3
C-1
4-21