Misfeed At 2Nd Transfer Section - Konica Minolta magicolor 2500W Service Manual

Field Service Ver. 1.0 Aug. 2006
15.4.3

Misfeed at 2nd transfer section

A. Detection timing
Type
The media does not unblock the registration sensor (PS1) even after the lapse of
a predetermined period of time after the registration roller solenoid (SD2) has
Detection of
been deenergized.
misfeed at 2nd
transfer section
The fusing paper loop sensor (PS8) is not blocked by the media that has moved
past the position, at which the sensor is blocked.
The registration sensor (PS1) is blocked when the power switch is turned ON, a
Detection of media
cover is opened and closed, or a misfeed or malfunction is reset.
left in 2nd transfer
The fusing paper loop sensor (PS8) is blocked when the power switch is turned
section
ON, a cover is opened and closed, or a misfeed or malfunction is reset.
B. Action
Registration sensor (PS1)
Fusing paper loop sensor (PS8)
Registration roller solenoid (SD2)
Step Action
1 Initial check items.
Check the PRCB connector
2 for proper connection and cor-
rect as necessary.
3 PS1 sensor check.
4 PS8 sensor check.
5 SD2 operation check.
6 Change PRCB.
Description
Relevant electrical parts
Printer control board (PRCB)
WIRING DIAGRAM
Control signal
-
-
2500W: PRCB PJ12PRCB-3 (ON)
2530 DL: PRCB PJ12PRCB-3 (ON)
2550/2550DN: PRCB PJ12PRCB-3 (ON)
2500W: PRCB PJ14PRCB-6 (ON)
2530 DL: PRCB PJ14PRCB-6 (ON)
2550/2550DN: PRCB PJ14PRCB-6 (ON)
2500W: PRCB PJ11PRCB-4 (REM)
2530 DL: PRCB PJ11PRCB-4 (REM)
2550/2550DN: PRCB PJ11PRCB-4 (REM)
-
15. Jam display
Location (Electrical
component)
-
-
2500W: C-10
2530 DL: C-9
2550/2550DN: C-9
2500W: J-3
2530 DL: J-2
2550/2550DN: J-2
2500W: C-11
2530 DL: C-10
2550/2550DN: C-10
-
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