Oki MC160MFP Maintenance Manual page 180

Oki Data CONFIDENTIAL
16.3 Solution 17.3 Solution
16.3.1 Initial check items
17.3.1 Initial check items
• When a media misfeed occurs, first make checks of the following initial check items.
Check item
Does media meet product specifications?
Is media curled, wavy, or damp.
Is a foreign matter present along the media path, or is
the media path deformed or worn?
Are rolls/rollers dirty, deformed, or worn?
Are the edge guide and trailing edge stop at correct
position to accommodate the media?
Are actuators found operational as checked for correct
operation?
16.3.2 Misfeed at tray1 media feed section
17.3.2 Misfeed at tray1 media feed section
A. Detection timing
Type
The leading edge of the media does not block the registration sensor (PS2)
Detection of misfeed
even after the lapse of a predetermined period of time after the tray1 media
at media feed section
feed solenoid (SD1) has been energized.
B. Action
Relevant electrical parts
Registration sensor (PS2)
Tray1 media feed solenoid (SD1)
Step Action
1 Initial check items
Check the PRCB connector for proper con-
2
nection and correct as necessary.
3 PS2 sensor check.
4 SD1 operation check.
5 Change PRCB.
44292401TH Rev.1
Action
• Change media.
• Change media.
• Instruct user in correct media storage.
• Clean or change the media path.
• Clean or change the defective roll/roller.
• Set as necessary.
• Correct or change the defective actuator.
Description
Printer control board (PRCB)
WIRING DIAGRAM
Location (electri-
Control signal
cal component)
PRCB PJ12-6 (ON) C-3
PRCB PJ10-2 (REM) C-10
16.3.3 Misfeed at 2nd transfer section
17.3.3 Misfeed at 2nd transfer section
A. Detection timing
Type
The media does not unblock the registration sensor (PS2) even after the lapse
of a predetermined period of time after the registration roller solenoid (SD2) has
Detection of misfeed
been deenergized.
at 2nd transfer
section
The 2nd image transfer retraction position sensor (PS3) is not blocked by the
media that has moved past the position, at which the sensor is blocked.
The registration sensor (PS2) is blocked when the power switch is turned ON, a
cover is opened and closed, or a misfeed or malfunction is reset.
Detection of media
left in 2nd transfer
The 2nd image transfer retraction position sensor (PS3) is blocked when the
section
power switch is turned ON, a cover is opened and closed, or a misfeed or mal-
function is reset.
B. Action
Relevant electrical parts
Registration sensor (PS2)
2nd image transfer retraction position sensor (PS3)
Registration roller solenoid (SD2)
Step Action
1 Initial check items
Check the PRCB connector for proper con-
2
nection and correct as necessary.
3 PS2 sensor check.
4 PS3 sensor check.
5 SD2 operation check.
6 Change PRCB.
TROUBLESHOOTING
Description
Printer control board (PRCB)
WIRING DIAGRAM
Location (electri-
Control signal
cal component)
PRCB PJ12-6 (ON) C-3
PRCB PJ12-3 (ON) C-2
PRCB PJ10-4 (REM) C-9
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