Fatal Errors; O1: Les Error - Epson DFX-9000 Repair Manual

Epson DFX-9000 Field Repair Guide

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
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
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.
Troubleshooting
Front/Rear
Printer Component, Software Item,
+ Font + Pitch Control Panel buttons. This places the
(See note below). The SP Motor should have 0.88 -
LCD Display, Printer Button
3/29/07
Page 118.