Misfeed At Tray 1 Feed Section - Konica Minolta Magicolor 8650 Service Manual

Field Service Ver. 2.0 Nov. 2007
13.3.5

Misfeed at tray 1 feed section

A. Detection timing
Type
Detection of • The leading edge of the paper does not turn ON the sensor in front of tim. roller
misfeed at tray 1
feed section
Tray 1 feed section • For paper fed from the tray 1, loop forming has not been complete before a
loop registration
reversing jam
Tray 1 feed section • For paper fed from the tray 1, TOD permit continues to be disabled for a prede-
TOD permit waiting
jam
B. Action
Transport motor (M1)
Paper feed tray 1 paper feed clutch (CL4)
Sensor in front of tim. roller (PS23)
Step
1 Initial check items
2 PS23 I/O check
3 CL4 operation check
4 M1 operation check
5 Change PRCB
Confidential – for internal use only, do not distribute
(PS23) even after the lapse of a given period of time after the tray 1 starts to
feed paper.
sheet enters the timing roller because the rise timing of load to perform registra-
tion is earlier than the rise timing of load to form a loop.
termined period of time after the timing of TOD output.
Relevant parts
Action
Description
Printer control board (PRCB)
WIRING DIAGRAM
Control signal
—
PRCB CN1PRCB-3 (ON)
PRCB CN6PRCB-2 (ON)
PRCB CN34PRCB-10 (REM)
PRCB CN34PRCB-13 (LOCK)
—
13. Jam display
Location (Electri-
cal component)
—
D-18
D-1
D-22
—
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