Epson DFX-9000 Service Manual page 121

Epson DFX 9000
The printer does not initialize when the power is
turned on
None of the Power source problem.
Control Panel
LEDs light.
Internal power problem
The Control Panel LEDs all light, but stay on.
Normal Control The printer stops initialization after the
Panel LED Control Panel LEDs light.
operation (all
LEDs light briefly,
but only the
Power LED stays
lit).
The printer stops initialization after the
Control Panel LEDs light, but
initializes normally after disconnecting
the data interface cable.
A Fatal Error message is displayed on the LCD.
Troubleshooting
Troubleshooting procedure
1. Check the power cable connection at both ends. Perform a continuity check on
the cable.
2. Verify that the wall socket supplies clean AC current that matches the voltage
rating on the printer.
Check and replace the following in the order below. Check functionality at each
step.
1. Check the connections at both ends of the OP CABLE.
2. Replace the OP CABLE (p.144)
3. Replace the OP UNIT (p.134)
4. Replace the POWER UNIT (p.136)
5. Initialize Page 51 or Replace
Initialize Page 51 or Replace the
Check the following in the order below, testing functionality after each step.
1. Make sure the top cover is closed.
2. Check, and if necessary replace, the
3. Check the OP CABLE and connections. Replace the
necessary.
4. Replace the OP UNIT (p.134).
5. Initialize Page 51 or Replace
1. Check and replace the data cable.
2. Check the host computer for failure.
Refer to Troubleshooting based on error codes
Troubleshooting
Page 137 the ROM BOARD.
ROM BOARD (p.137).
CO SW ASY (p.147)
OP CABLE (p.144)
Page 137 the ROM BOARD.
(p.106).
Revision B
if
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