Solution; Initial Check Items; Misfeed At Tray 2 Paper Feed Section - Konica Minolta magicolor 2500W Service Manual

Field Service Ver. 1.0 Aug. 2006
4.4

Solution

4.4.1

Initial check items

• When a paper misfeed occurs, first check the following initial check items.
Does the paper meet product specifications?
Is paper curled, wavy, or damp.
Is a foreign object present along the paper path, or is the
paper 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 the paper?
Are the actuators found operational when checked for
correct operation?
4.4.2

Misfeed at Tray 2 paper feed section

A. Detection timing
Type
Detection of mis- The leading edge of the paper does not block the registration sensor (PS1) even
feed at tray 2 paper after the lapse of a predetermined period of time after the paper pick-up solenoid
feed section (SD1) has been energized.
B. Action
Registration sensor (PS1)
Paper pick-up solenoid (SD1)
Step Action
1 Check the initial check items.
Check the PRCB connector for
2 proper connection and correct as
necessary.
3 Check the PS1 sensor.
4 Check SD1 for correct operation.
5 Change PRCB.
Check Item
Relevant electrical parts
2500W: PRCB PJ12PRCB-3 (ON)
2530 DL: PRCB PJ12PRCB-3 (ON)
2550/2550DN: PRCB PJ12PRCB-3 (ON)
PFDB PJ22PFDB-2 (REM)
Action
Change the paper.
Change the paper.
Instruct the user in correct paper storage.
Clean or change the paper path.
Clean or change the defective roll/roller.
Set as necessary.
Correct or change the defective actuator.
Description
Printer control board (PRCB)
WIRING DIAGRAM
Control signal
-
-
-
4. Jam display
Location
(Electrical compo-
nent)
-
-
2500W: C-10
2530 DL: C-9
2550/2550DN: C-9
F-4
-
13