Misfeed At The Document Transport Section - Konica Minolta magicolor 2590MF Service Manual

Field Service Ver. 1.0 Aug. 2007
7.3.3

Misfeed at the document transport section

A. Detection timing
Type
Detection of mis-
The paper leading edge detection sensor (PS3) is not blocked even after the
feed at the docu-
lapse of a predetermined period of time after the paper feed sensor (PS2) has
ment transport
been unblocked.
section
Detection of paper The paper feed sensor (PS2) is unblocked and the paper leading edge detection
left at the document sensor (PS3) is blocked when the power switch is turned ON, the cover is opened
transport section and closed, or a misfeed or malfunction is reset.
B. Action
Main motor (M1)
Paper feed sensor (PS2)
Paper leading edge detection sensor (PS3)
Step
1 Initial check items.
Check the DFCB connector for proper con-
2
nection and correct as necessary.
3 M1 operation check.
4 PS2 sensor check.
5 PS3 sensor check.
6 Change DFCB.
Relevant electrical parts
Action
Description
DF control board (DFCB)
WIRING DIAGRAM
Control signal
—
—
DFCB PA01DFCB-1 to 4
(Pulse Output)
DFCB PA06DFCB-1 (ON)
DFCB PA03DFCB-1 (ON)
—
7. Jam display
Location (Electrical
component)
—
—
F-14
F-13
F-13
—
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