Epson C11C605001 - DFX 9000 B/W Dot-matrix Printer Service Manual page 125

Troubleshooting
Table 5-11. The LCD Displays FEED JAM (2)
Cause
The feed solenoid of the
standard feeder unit coil
may be open or shorted.
r
Step Checkpoint
coil resistance between pin
1 and pin 2 on the
the connector, using a
Is the resistance
approximately 120 ohms?
If the coil is shorted, check
1
the solenoid drive circuit
using the praxdure below:
1. Set the multimeter for
resistance check mode.
2. Place the (-) terminal of
the multimater on pin 2
of connector P/J201 on
the FEEDER PWB board.
3. Place the (+) terminal of
the multimeter on GND.
Does the multimeter detect
any current?
Disconnect connector
coil resistance between pin
disconnected cable side of
the connector, using a
Is the resistance
approximately 220 ohms?
If the coil is shorted, check
the solenoid drive circuit
using the procedure below:
1. Set the multimeter for
resistance check mode.
2. Place the (-) terminal of
the multimeter on pin 2
of connector P/J202 on
the FEEDER PWB board.
3. Place the (+) terminal of
the multimeter on GND.
Does the multimeter detect
arty current?
Finding Solution
Replace the feed
No
solenoid.
Replace the feed
solenoid and the
FEEDER PWB
board.
Replace the turn
No
solenoid.
Replace the turn
solenoid and the
Yes
FEEDER PWB
board.