Displayed Message
8.5V PWR FAIL*
15V PWR FAIL*
23.5V PWR FAIL*
48V PWR FAIL*
ACCESS NULL PTR*
A TO D OVERUN*
BUFFER OVERFLOW
CLEAR PAPER JAM
CLOSE PLATEN
COIL HOT*
CTL VOLT FAIL*
DRVR CIR BAD*
Table 19. LCD Message Troubleshooting Table
Can User
Explanation
Correct?
No
Internal power failure.
No
Controller voltage
failure.
No
Controller voltage
failure.
No
Internal power failure.
No
Fatal firmware error on
controller board.
No
Fatal firmware error on
controller board.
Yes
Host sends data after
the printer buffer is
full. (Serial interface.)
Yes
No paper motion.
Yes
The forms thickness
lever is open.
No
One or more hammer
coils are overheating.
No
Controller voltage
failure.
No
Hammer coil count
test failed.
Fault Messages
Solution
Contact your authorized
customer service engineer.
Contact your authorized
customer service engineer.
Contact your authorized
customer service engineer.
Contact your authorized
customer service engineer.
Contact your authorized
customer service engineer.
Contact your authorized
customer service engineer.
Check your serial host interface
parameter settings; if necessary,
adjust them so that they match
the settings of the attached host.
Clear jam and reload paper.
(See Operator's Guide.) If this
message recurs, contact your
authorized customer service
1
engineer.
Close the forms thickness lever
(page 47.)
Contact your authorized
customer service engineer.
Contact your authorized
customer service engineer.
Contact your authorized
customer service engineer.
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