Epson DFX-8500 Service Manual page 176

DFX-8500
Fatal Error 7-segment
LED *
Carriage motor 1
circuit short
Cutter error 2
Platen gap 3
error
Carriage lock 4
error
Encoder error 4
Carriage load 6
measurement
error
Head fan error 7
Printhead 8
circuit short
RAM check 9
error
Paper memory a
setting error
EEPROM data b
compare error
Tractor change c
error
Internal CPU d
error
*: During a fatal error, the 7 segment LED alternately flashes an "E" and the error number.
†: 500 ms beeps with 100 ms intervals.
‡: Turn the printer power off while the 7 segment LED is on, or the printer will shut down. The printer will not
turn back on for 5 minutes after the printer shuts down automatically.
5-2
Table 5-2. Fatal Error Information
†
Beeper
- The isolation resistance in the carriage
motor is too low.
• The optional cutter cable is not
- -
connected securely.
• The optional cutter is defective.
• The PG home sensor is broken.
- - -
• The PG motor is broken.
• The parallelism adjustment is
incorrect.
• PG adjustment values are incorrect.
• PG motor pinion is too tight against
the PG transmission gear.
- - - - The carriage is locked.
- - - - The encoder sensor is defective.
- - - - - - PW sensor is defective.
• The head fan driver IC is shorted.
- - - - - - -
• The head fan is defective.
• The printhead driver IC is shorted.
- - - - - - - -
• The printhead coil is defective.
- - - - - - - - - The DRAM on the main board is
defective.
- - - - - - - - - - -
- - - - - - - - - - - The EEPROM is defective.
- - - - - - - - - - - - The tractor select mechanism or ribbon
feed motor is defective.
The main board is defective.
Description
‡
Note
Auto power off
after 12 seconds
Auto power off
after 12 seconds
Auto power off
after 12 seconds
Auto power off
after 12 seconds
Auto power off
after 12 seconds
Auto power off
after 12 seconds
Printhead power
off immediately
Printhead power
off immediately
Auto power off
after 12 seconds
-
Auto power off
after 12 seconds
Auto power off
after 12 seconds