Epson C11C605001 - DFX 9000 B/W Dot-matrix Printer Service Manual page 127

Troubleshooting
Table 5-12. The LCD Displays FEED JAM (3)
Cause
The feed solenoid of the
optional feeder unit coil may
be open or shorted.
The turn solenoid coil may
be open or shorted.
5-8
Step
Disconnect connector
coil resistance between pin
1 and pin 2 on the
disconnected cable side of
the connector, using a
Is the resistance
If the coil is shorted, check
1
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/J201 on
the FEEDER PWB board.
3. Place the (+) terminal of
the multimeter on GND.
Does the muttimeter detect
any current?
coil resistance between pin
1 and pin 2 on the
disconnected cable side of
the connector, using a
Is the resistance
approximately 220 ohms?
If the wit is shorted, check
2
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 muitimeter on GND.
Does the multimeter detect
any current?
Solution
Finding
Replace the feed
No
solenoid.
Replace the feed
solenoid and the
FEEDER PWB
board.
Replace the turn
No
solenoid.
solenoid and the
FEEDER PWB
board.
Rev. A