Konica Minolta magicolor 1680MF Service Manual page 373

4. Jam display
4.4.3 Misfeed at Duplex Option media feed section
A. Detection timing
Type
The paper loop sensor (PS13) is not unblocked even after the lapse of a predeter-
mined period of time after a duplex paper feed sequence has been started.
Detection of mis-
feed at Duplex The loop sensor (PS13) is not blocked even after the lapse of a predetermined
Option paper feed period of time after a duplex paper feed sequence has been started.
section
The transport sensor/1 (PS15) is not blocked even after the lapse of a predeter-
mined period of time after a duplex paper feed sequence has been started.
B. Action
Loop sensor (PS13)
Transport sensor/1 (PS15)
Transport motor (M6)
Step
1 Initial check items.
2 Check the PS13 sensor.
3 Check the PS15 sensor.
4 Check M6 for correct operation.
5 Change ADDB.
6 Change PRCB.
16
Relevant electrical parts
Action
Field Service Ver. 1.0 Nov. 2008
Description
AD drive board (ADDB)
Printer control board (PRCB)
WIRING DIAGRAM
Control signal
⎯
ADDB CN2-3 (ON)
ADDB CN4-3 (ON)
ADDB CN7-1 to 4
⎯
⎯
Location
(Electrical
component)
⎯
B-4 to 5
G-5
G-3
⎯
⎯