Solution; Initial Check Items; Misfeed At Duplex Option Reverse Drive/Storage Section - Konica Minolta magicolor 2490MF Service Manual

Field Service Ver. 1.0 Jul. 2006
4.3

Solution

4.3.1

Initial check items

• When a media misfeed occurs, check the following:
Does the media meet product specifications?
Is the media curled, wavy, or damp.
Is a foreign object present along the media path, or is
the media path deformed or worn?
Are the rolls/rollers dirty, deformed, or worn?
Are the edge guide and trailing edge stop at the correct
position to accommodate paper?
Are the actuators operational?
4.3.2

Misfeed at duplex option reverse drive/storage section

A. Detection timing
Type
Detection of mis-
feed at duplex The transport sensor (PS3) is not unblocked even after the lapse of a predeter-
option reverse mined period of time after the reverse motor (M2) has been energized for reverse
drive/storage sec- drive.
tion
B. Action
Transport sensor (PS3)
Transport motor (M1)
Reverse motor (M2)
Step
1 Initial check items.
2 Check the PS3 sensor.
3 Check M3 for correct operation.
4 Check M2 for correct operation.
5 Change ADDB.
6 Change PRCB.
Check Item
Relevant electrical parts
Action
Action
Change the media.
Change the media.
Instruct the user in correct media storage.
Clean or change the media path.
Clean or change the defective roll/roller.
Set as necessary.
Correct or change the defective actuator.
Description
AD drive board (ADDB)
Printer control board (PRCB)
WIRING DIAGRAM
Control signal
-
ADDB PJ5ADDB-3 (ON)
ADDB PJ2ADDB-1 to 4
(Pulse Output)
ADDB PJ2ADDB-5 to 8
(Pulse Output)
-
-
4. Jam display
Location
(Electrical
component)
-
B-4
B-4
B-5
-
-
15