Epson AcuLaser C1900 Service Manual page 161

EPSON AcuLaser C1900/AcuLaser C900
FUSER AREA JAM / PAPER EJECT AREA JAM
Detection Timing
Table 3-6. Detection Timing
Category
Paper eject area jam The light to the paper eject sensor (PC10) is not transmitted even
when a predetermined time has passed since the paper intercepted the
light to the sensor (PC10).
Retaining paper The light to the paper eject sensor (PC10) is intercepted when the
detection in paper main switch is turned on, the door and cover are opened and closed
eject area or a jam or trouble is cleared.
Solution
Electric parts which can cause the jam:
Paper Eject Sensor (PC10)
•
• Engine Board (PWB-A)
Step Action
1 Initial checking
2 Check the operation of PC10.
3 Replace the PWB-A.
Troubleshooting
Explanation
Table 3-7.
WARNING DIAGRAM
Refer to
Control Signal
p.159 -
p.162 PC10_ON
- -
Check Points and Remedy for Paper Jam
500-SHEET CASSETTE UNIT PAPER EJECT AREA
Detection Timing
Table 3-8. Detection Timing
Category
Paper feed area jam Even on the lapse of a predetermined time after turning on of the 2nd
paper feed solenoid (SL7), the front end of the paper does not
intercept the light to the timing roller front sensor (PC2).
Remaining paper The light to the timing roller front sensor (PC2) is intercepted when
detection in 2nd the main switch is turned on, the door and cover are opened and
tray closed or a jam or trouble is cleared.
Solution
Electric parts which can cause the jam:
2nd Paper Feed Solenoid (SL7)
•
• Timing Roller Front Sensor (PC2)
• 500-sheet Cassette Unit Control Board (PWB-A)
Step Action
1 Initial checking
2 Check the operation of PC2.
3 Check the operation of SL7.
4 Replace the PWB-A.
Revision B
Explanation
Table 3-9.
WARNING DIAGRAM
Refer to
Control Signal
p.159 -
p.162 PC2_ON
p.163 SL7_REM
- -
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