Epson EPL-9000, Service Manual

Page: 128 / 162

Service Manual
Troubleshooting
Table 5-12.
The LCD Displays FEED JAM (3) (Continued)
Cause Step Checkpoint
Finding Solution
Disconnect connector 4
on the board
and check the coil
resistance between: pin 1
and pin 3; pin 1 and pin 5;
pin 2 and pin 4; and pin 2
and pin 6 (four points total)
on the disconnected cable
Replace the main
side of the connector, using No
a
motor.
Pin 1 — Pin 3
Pin 1 — Pin 5
Pin 2 — Pin 4
Pin 2 — Pin 6
Are the resistances of all
four points approximately 8
main motor coil may be
ohms?
or shorted.
If any coil is shorted, check
the main motor drive circuit
using the following
procedure:
1. Set the
to
resistance check mode.
2. Place the (-) terminal of
the on pins 3,
5, 4, or 6 of connector
Yes
Replace the
on the
board.
board.
3. Place the terminal on
pin 8 of connector 1
on the board
Does the detect
any current?
The
board maybe
3 —
Replace the
bad.
—
board.
The sensor maybe bad . 4 “
Replace the
—
sensor.
feed roller maybe bad.
5 —
Replace the feed
—
roller.
Table 5-13. The LCD Displays PAPER JAM
at Power
Cause Step
Checkpoint Finding Solution
The sensor maybe
—
Replace the
bad.
—
sensor.
The EXIT
sensor may be
—
Replace the EXIT
bad.
—
sensor.
Rev.
5-9