Epson DFX-9000 Service Manual page 129

Epson DFX 9000
Control Panel related failure
The switches on the control panel are inoperable.
Troubleshooting
Troubleshooting procedure
1. Check whether the printer has been Paused, and if so place the printer online.
2. Verify the OP CABLE connection between the OP Board and ROM BOARD.
See Figure 4-6. OP UNIT Removal
Removal (1) (p.137).
3. If necessary, replace the OP CABLE (p.144)
4. Cycle (turn off and back on) the printer's power and confirm the trouble
symptom.
NOTE: If the printer is producing abnormal odor or smoke, do not turn the
power back on until the source has been determined and the problem resolved.
5. Check and replace the OP UNIT (p.134)
6. Check and replace the ROM BOARD (p.137)
Troubleshooting
(p.134), and Figure 4-10. ROM BOARD
Revision B
122