Solution; Initial Check Items; Misfeed At Tray 2 Paper Feed Section - Konica Minolta bizhub C25 Service Manual

Field Service Ver. 1.1 May 2011

16.3 Solution

16.3.1

Initial check items

• When a paper misfeed occurs, first perform the following initial check items.
Check item
Does paper meet product specifications?
Is the paper curled, wavy, or damp?
Is a foreign object present along the paper path, or
is the paper path deformed or worn?
Are rolls/rollers dirty, deformed, or worn?
Are the edge guide and trailing edge stop at the cor-
rect position to accommodate the paper?
Are the actuators operating correctly?
16.3.2

Misfeed at tray 2 paper feed section

A. Detection timing
Type
Detection of • The paper does not unblock the registration sensor (PS5) even after the lapse
misfeed at tray 2
paper feed section
B. Action
Registration sensor (PS5)
Tray2 media feed clutch (CL1)
Step
1 Initial check items
2 Check the connector between M2-PRCB
PJ11 for proper connection and correct as
necessary.
3 Check the M2 connector for proper drive
coupling and correct as necessary.
4 Check the connector between PS5-PRCB
PJ23 for proper connection and correct as
necessary.
5 Check the connector between CL1-PRCB
PJ16 for proper connection and correct as
necessary.
6 PS5 sensor check
7 CL1 operation check
8 M2 operation check
9 Change PRCB.
of a given period of time after the tray2 media feed clutch (CL1) is turned ON.
Relevant electrical parts
Action
Action
Replace paper.
Replace paper.
Clean the paper path and replace if necessary.
Clean or replace the defective roll/roller.
Set as necessary.
Correct or replace the defective actuator.
Description
Printer control board (PRCB)
Main motor (M2)
WIRING DIAGRAM
Control signal
-
-
-
-
-
PRCB PJ23-3 (ON)
PRCB PJ16-2 (REM)
PRCB PJ11-10 to 13
-
16. JAM DISPLAY
Location (electri-
cal component)
-
-
-
-
-
K-8
D-2
B-8
-
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