Epson DFX-9000 Field Repair Guide
3/29/07
Troubleshooting
Printer Component,
Software Item,
LCD Display,
Printer Button
Page 118.
Fatal Errors
Error log information is stored in the EEPROM (non-volatile memory) located on the main board. Use the adjustment
program to retrieve the error log information.
To access the printer with the Adjustment Program while in a fatal error state:
1.
Turn off the printer
2.
Turn the printer on while holding down the
Front/Rear
+
Font
+
Pitch
Control Panel
buttons. This places the
printer in the Error Analyzing Mode.
3.
Run the Adjustment Program.
O1: LES Error
Cause: Carriage Home Position was not detected.
Action:
1.
Check for obstructions in the
Carriage
area.
2.
Check for proper lubrication of the
Carrier Unit
(Carriage Assy) and
Stay Shaft
(
Carriage Guide Shaft
).
3.
Check the
SP Belt
(
CR Drive Belt
) for proper belt tension (1500-2000 gf).
4.
Inspect the
Left End Sensor
for debris and physical damage, and proper seating in its connector.
5.
Inspect the
Carrier Cable Unit
(FFC cable) for physical damage and proper seating in its connectors.
6.
Test the
Left End Sensor
(
Carriage Home Position Sensor
). If there is no toggle, replace the
Carrier Unit
(
Carriage Assy
).
7.
Test the
SP Motor
(
Carriage Motor
) with an ohmmeter (
See note below
). The
SP Motor
should have 0.88 -
1.08 ohms of resistance. If the resistance is incorrect, replace the
SP Motor
.
8.
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 SP 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.
