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Chapter 3 Troubleshooting Display Messages
ERROR: PROGRAM
NOT COMPATIBLE
The printer is not compatible
with the downloaded
program.
Use the correct emulation software
option(s) for this model printer.
ERROR: PROGRAM
NOT VALID
The printer does not see a
program in flash memory.
There is no program in printer
memory. Download the emulation.
ERROR: SECURITY PAL
NOT DETECTED
The security module is not
present or has failed. (PAL
stands for Programmable
Array Logic.)
1. Check the security module at
location U54 on the controller
board. If the module is absent,
install the correct module. If a
security module is present,
replace it.
2. Power on the printer. If the
message appears, replace the
controller board. Record the
message and return it with the
defective board.
ERROR: SHORT AT
ADDRESS XXXX
Hardware failure in DRAM or
controller circuitry.
1. Download the program again.
2. If the message occurs again,
replace the DRAM.
3. If message occurs with new
memory, replace the controller
board. Record the message and
return it with defective board.
ERROR: WRITING
TO FLASH
Hardware or software fault in
flash memory.
1. Replace flash memory.
2. If message occurs with new
memory, replace the controller
board. Record the message and
return it with defective board.
ERROR: WRONG
CHECKSUM
The printer received the
complete program but the
checksum did not match.
The data may have been
corrupted during download.
1. Power off the printer. Download
the program again from the
beginning. If the messages
appears, replace the DRAM.
2. Download the program using a
new software diskette. If the
messages appears, replace the
flash memory.
3. Download the program. If the
messages appears, replace the
controller board. Record the
message and return it with
defective board.
Table 2. Message List
Message Explanation Solution
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