Epson DFX-9000 Field Repair Guide
3/29/07
Troubleshooting
Printer Component,
Software Item,
LCD Display,
Printer Button
Page 128.
2.
Short the ohmmeter test leads together and note the value displayed on the ohmmeter.
3.
Place the ohmmeter test leads across each of the
RF Motor
windings.
Subtract the value obtained in Step 2 from each of the values displayed in Step 3. The result is the actual resistance
of the
RF Motor
.
13: HCPP (Host-computer Controlled Paper Path) Driver Error
Cause: A winding of the
HCPP Motor
was energized for too long a time period.
Action:
1.
Test all four (4) windings of the
HCPP Motor
with an ohmmeter (
See note below
). Each winding of the
HCPP
Motor
should have 145 - 165 ohms of resistance. If the resistance is incorrect, replace the
HCPP Motor
.
2.
Replace the
ROM Board
.
Note: A weak ohmmeter battery, uncalibrated ohmmeter, and ohmmeter test lead resistance will cause an
inaccurate resistance reading. To obtain an accurate resistance reading, test the HCPP Motor as
follows:
1.
Set the ohmmeter on its lowest resistance scale.
2.
Short the ohmmeter test leads together and note the value displayed on the ohmmeter.
3.
Place the ohmmeter test leads across each of the
HCPP Motor
windings.
Subtract the value obtained in Step 2 from each of the values displayed in Step 3. The result is the actual resistance
of the
HCPP Motor
.
