TROUBLESHOOTING
Rev. B
5-1
5.1 TROUBLESHOOTING INFORMATION
The information in this chapter makes troubleshooting easier to perform by listing various problems that can
occur and providing possible solutions.
Note: For this printer, no special tools are necessary for troubleshooting to the unit level, with the
exception of a digital multi-meter. Some component-level troubleshooting may require an
oscilloscope.
5.1.1 Error Messages
The DFX-8500 indicates errors using beeps. Table 5-1 lists fatal errors.
Table 5-1. Fatal Error Information
Fatal Error 7-segment
LED *1)
Beeper *2) Description Note*3)
CR motor
circuit
shortage error
1-
•
The isolation resistance in the CR
motor is too low.
Auto power off
after 12 seconds
Cutter error 2 - -
•
Optional cutter cable is not connected
firmly.
•
Optional cutter is defective.
Auto power off
after 12 seconds
Platen gap
error
3- - -
•
The PG home sensor is broken.
•
The PG motor is broken.
•
The parallelism adjustment is
incorrect.
•
PG adjustment values are incorrect.
•
PG backlash is too tight.
Auto power off
after 12 seconds
Carriage lock
error
4 - - - -
•
The carriage is locked.
•
The interlock switch doesn’t close
exactly.
•
The parallelism adjustment is
incorrect.
•
PG adjustment values are incorrect.
Auto power off
after 12 seconds
Carriage load
measurement
error
6 - - - - - -
•
PW sensor is defective.
•
The CR motor is defective.
•
The CR encoder sensor is defective.
Auto power off
after 12 seconds
Head fan error 7 - - - - - - -
•
The head fan driver IC is shorted.
•
The head fan of the print head is
defective.
Head power off
immediately
Head circuit
shortage error
8 - - - - - - - -
•
The print head driver IC is shorted.
•
The coil of the print head is defective.
Head power off
immediately
RAM check
error
9 - - - - - - - - -
•
DRAM of C204 MAIN board is
defective.
Auto power off
after 12 seconds
Paper memory
setting error
a - - - - - - - - - - - -
EEPROM data
compare error
b - - - - - - - - - - -
•
EEPROM on the C204 MAIN board
is defective.
Tractor change
error
c - - - - - - - - - - -
-
•
Tractor select mechanism is
defective.
Auto power off
after 12 seconds
Watch dog
error
d
•
C205 MAIN board has trouble.
Auto power off
after 12 seconds
Note 1: The 7 segment LED indicates error No. and “E” alternately.
Note 2: The descriptions “.”and “-“ show how the beeper sounds.
“.”: Beeper sounds 100 ms and interval is 100 ms.
“-“ : Beeper sounds 500 ms and interval is 100 ms.
Note 3: Turn the printer power off while the 7 segment LED are on, or the printer shuts power
down automatically. You can’t turn the printer back on for 5 minutes after the printer shuts
power down automatically
