Misfeed At Fusing Section - Konica Minolta magicolor 2500W Service Manual

15. Jam display
15.4.4

Misfeed at fusing section

A. Detection timing
Type
The media 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 media.
The main motor, polygon motor, and rack motor are energized even after the
lapse of a predetermined period of time after media information has been created.
Detection of media The exit sensor (PS7) is blocked when the power switch is turned ON, a cover is
left in fusing section opened and closed, or a misfeed or malfunction is reset.
B. Action
Exit sensor (PS7)
Registration roller solenoid (SD2)
Step Action
1 Initial check items.
Check the IPB connector for
2 proper connection and correct
as necessary.
Check the PRCB connector
3 for proper connection and cor-
rect as necessary.
4 PS7 sensor check.
5 SD2 operation check.
6 Change IPB.
7 Change PRCB.
138
Description
Relevant electrical parts
Printer control board (PRCB)
Image processing board (IPB)
WIRING DIAGRAM
Control signal
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2500W: PRCB PJ6PRCB-3 (ON)
2530 DL: PRCB PJ6PRCB-3 (ON)
2550/2550DN: PRCB PJ6PRCB-3 (ON)
2500W: PRCB PJ11PRCB-4 (REM)
2530 DL: PRCB PJ11PRCB-4 (REM)
2550/2550DN: PRCB PJ11PRCB-4 (REM)
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Field Service Ver. 1.0 Aug. 2006
Location
(Electrical
component)
2500W: C-9
2530 DL: C-8
2550/2550DN: C-8
2500W: C-11
2530 DL: C-10
2550/2550DN: C-10
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