Instruction manual

3–4 Troubleshooting
Table 3–1. LCD Message Troubleshooting Table
Displayed Message Explanation
Solution
8.5V PWR FAIL*
Internal power failure. Cycle power. If message
recurs, replace one at a time
until message clears:
a) power supply board
b) controller board
15V CTL FAIL*
Controller voltage failure. Cycle power. If message
recurs, replace one at a time
until message clears:
a) controller board
b) power supply board
23.5V CTL FAIL*
Controller voltage failure. Cycle power. If message
recurs, replace one at a time
until message clears:
a) controller board
b) power supply board
48V PWR FAIL*
Internal power failure. Cycle power. If message
recurs, replace one at a time
until message clears:
a) power supply board
b) controller board
A TO D OVERUN*
Fatal firmware error on
CMX controller board.
Cycle power and rerun print
job. If message recurs,
replace CMX controller
board.
ACCESS NULL PTR*
Fatal firmware error on
CMX controller board.
Cycle power and rerun print
job. If message recurs,
replace CMX controller
board.
BUFFER OVERFLOW
Host sends data after the
printer buffer is full. (Serial
interface.)
Page 3–25
CLEAR PAPER JAM
No paper motion. Clear jam and reload paper.
If message recurs, see page
3–10.
CLOSE PLATEN
The forms thickness lever is
open.
Page 3–11
COIL HOT
One or more hammer coils
are overheating.
Page 3–12