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Field Service Ver. 1.1 Jun. 2010
12.3.6
Misfeed at tray 3/tray 4 paper feed section
A. Detection timing
Type
Detection of
• The paper does not unblock the media feed sensor (PS3) even after the lapse
misfeed at tray 3/
tray 4 paper feed
section
Detection of paper
• The media feed sensor (PS3) is unblocked when the power switch is turned
left in tray 3/tray 4
paper feed section
B. Action
Media feed sensor (PS3)
Media feed clutch (CL1)
Step
1
Initial check items
2
Check the connector between M1-PCCB
PJ3 for proper connection and correct as
necessary.
3
Check the M1 connector for proper drive
coupling and correct as necessary.
4
Check the connector between PS3-PCCB
PJ5 for proper connection and correct as
necessary.
5
Check the connector between CL1-relay
CN57-PCCB PJ15 for proper connection
and correct as necessary.
6
PS3 sensor check
7
CL1 operation check
8
M1 operation check
9
Check the connector between PCCB PJ1,
PJ2-relay CN53, CN70-PRCB PJ7 for
proper connection and correct as neces-
sary.
10
Change PCCB.
11
Change PRCB.
of a given period of time after the media feed clutch (CL1) is turned ON.
ON, a door or cover is opened and closed, or a misfeed or malfunction is reset.
Relevant electrical parts
Action
Description
Printer control board (PRCB)
PC control board (PCCB)
Media feed motor (M1)
WIRING DIAGRAM
Control signal
-
-
-
-
-
PCCB PJ5-3 (ON)
PCCB PJ5-8 (REM)
PCCB PJ3-4 to 8
-
-
-
12. JAM DISPLAY
Location (electri-
cal component)
-
-
-
-
-
I-2
I-2
K-2
-
-
-
195
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