Misfeed At Fusing Section - Konica Minolta magicolor 2490MF Service Manual

Field Service Ver. 1.0 Jul. 2006
14.3.4

Misfeed at fusing section

A. Detection timing
Type
The paper does not block the exit sensor (PS7) even after the lapse of a predeter-
mined period of time after the registration roller solenoid (SD2) has been ener-
gized.
Detection of
misfeed at fusing
The exit sensor (PS7) is unblocked within a predetermined period of time after it
section has been blocked by the paper.
The main motor, polygon motor, and rack motor are energized even after the
lapse of a predetermined period of time after paper information has been created.
Detection of paper
The exit sensor (PS7) is blocked when the power switch is turned ON, a cover is
opened and closed, or a misfeed or malfunction is reset.
left in fusing section
B. Action
Exit sensor (PS7)
Registration roller solenoid (SD2)
Step
1 Initial check items.
Check the IPB connector for proper connection
2
and correct as necessary.
Check the PRCB connector for proper connec-
3
tion and correct as necessary.
4 PS7 sensor check.
5 SD2 operation check.
6 Change OPB.
7 Change PRCB.
Relevant Electrical Parts
Printer control board (PRCB)
Image processing board (IPB)
Action
Description
WIRING DIAGRAM
Control Signal
-
-
-
PRCB PJ6PRCB-3 (ON)
PRCB PJ11PRCB-4 (REM)
-
-
14. Jam display
Location
(Electrical
Component)
-
-
-
C-7
J to K-1
-
-
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