Epson Aculaser C9200N - Page 103

EPSON AcuLaser C9200N Revision D
Troubleshooting Jam Display 103
Confidential
MISFEED AT 2ND IMAGE TRANSFER SECTION (A)
 Detection Timing
 Action
Table 3-4. Detection Timing
Type Description
Detection of
misfeed at 2nd
Transfer section
The leading edge of the paper does not block the Exit Sensor (PC2) even
after the lapse of a given period of time after the Registration Roller
Clutch (CL1) has been energized.
The Registration Roller Sensor (PC1) is not unblocked even after the lapse
of a given period of time after it has been blocked by the paper.
Detection of paper
left in 2nd Transfer
section
The Registration Roller Sensor (PC1) is blocked when the Power Switch
is turned ON, a cover is opened and closed, or a Jam or malfunction is
reset.
The OHP Sensor (PC4) is blocked when the Main Power Switch is turned
ON, a cover is opened and closed, or a Jam or malfunction is reset.
The Exit Sensor (PC2) is blocked when the Image Transfer Belt Unit is
being cleaned.
Misfeed detected as
a result of delayed
deactivation of
sensor
The Registration Roller Sensor (PC1) is not unblocked at MP tray feed
even when the lapse of a given period of time passed after it has been
shaded by the paper.
2nd Transfer
section Loop
Registration
Reversing JAM
The Registration Roller Sensor (PC1) has been shaded earlier than the
specified period of time after the Feed Roller started rotating to feed
paper.
Table 3-5. Action
Relevant Electrical Parts
 Registration Roller Sensor (PC1)
 Exit Sensor (PC2)
 OHP Sensor (PC4)
 Registration Roller Clutch (CL1)
 Mechanical Control Board (PWB-M)
Step Action
Connection Diagram
Control Signal
Location
(electrical parts)
1 Initial check items --- ---
2 PC1 I/O check, Sensor check PWB-M CNSEN-3 (ON) C-3A to 4
3 PC2 I/O check, Sensor check PWB-M CNTH2-8 (ON) C-14
4 PC4 I/O check, Sensor check PWB-M CNSEN-6 (ON) C-4
5 CL1 operation check PWB-M CNSEN-18 (ON) C-5
6 Change PWB-M (p.198) --- ---