Epson C11C605001 - DFX 9000 B/W Dot-matrix Printer Service Manual page 123

Troubleshooting
Table 5-7. The LCD Displays PAPER OUT (2)
Cause
The paper-empty sensor
flag of the standard feeder
position may be incorrect.
The paper-empty sensor
may be bad.
Table 5-8. The LCD Displays PAPER OUT (3)
Cause
The paper-empty sensor
flag of the optional feeder
position may be incorrect.
The paper-empty sensor
mav be bad.
Table 5-9. The LCD Displays IUEGAL CART
Cause
The installed cartridge may be
illegal. (Check the usefs
guide.)
The cartridge may be bad.
bad.
Table 5-10. The LCD Displays FEED JAM (1)
Cause
The pick-up solenoid coil
5-4
Step Checkpoint
Is the paper-empty sensor
flag position OK?
2 —
Step Checkpoint
Is the paper-empty sensor
1
flag position OK?
2 —
Step Checkpoint
Can this printer use the
1
inserted cartridge?
Does this printer recognize
2
another legal cartridge?
3 —
step
Checkpoint
Disconnect connector P/J16
on the MCU PWB board and
check the coil resistance
between pin 7 and pin 8 on
the disconnected cable side
of the connector, using a
Is the resistance
approximately 120 ohms?
If the ooil 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 7
of connector P/J16 on the
3. Place the (+) terminal of
the multimeter on pin 8
of connector P/Jll (GND),
Does the multimeter detect
any current?
Finding Solution
Reset the paper-
No
empty sensor flag.
Replace the paper-
—
empty sensor.
Solution
Finding
Reset the paper-
No
empty sensor flag.
Replace the paper-
—
Solution
Replace with a
No
supported cartridge
Replace the
cartridge.
Replace the C135
—
MAIN board.
Solution
Replace the
No
pick-up solenoid.
Replace the
pick-up solenoid
Yes
and the MCU PWB
board.
Rev. A