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N7000 STD ASCII Printers Fault Messages
Table 12. N7000 STD ASCII LCD Fault Messages Troubleshooting
Displayed Message
8.5V PWR FAIL*
No
15V CTL FAIL*
No
23.5V CTL FAIL*
No
48V CIRCUIT*
No
See User Manual
48V PWR FAIL*
No
A TO D OVERUN*
No
ACCESS NULL PTR*
No
B00 STATUS: SDRAM
No
DETECTION 166MHZ
B01 STATUS: 8245
No
SDRAM TEST 32MB
B10 ERROR: NO
No
DRAM DETECTED*
Can User
Explanation
Correct?
8.5 Volt power failed.
Internal power failure.
Controller voltage failure.
23.5 Volt Controller
failed: a voltage failure on
the controller board.
Either the power supply is
not generating a proper
48 Volts or the controller
board is not detecting a
48 Volt output from the
power supply board.
Internal power failure.
Analog to Digital
Overrun. The analog-to-
digital converter
overflowed.
Access Null Pointer: The
processor tried to access
a pointer that contains
nothing (null).
Status message: the
printer has begun its
boot-up routines and is
checking for the
presence of SDRAM.
Status message: printer
boot-up routines are
testing SDRAM.
SDRAM DIMM may not
be properly installed.
Boot-up routines did not
detect the presence of
the SDRAM DIMM.
N7000 STD ASCII Printers Fault Messages
Solution
Contact your authorized service
representative.
Contact your authorized service
representative.
Contact your authorized service
representative.
Contact your authorized service
representative.
Contact your authorized service
representative.
Contact your authorized service
representative.
Contact your authorized service
representative.
No action required.
No action required.
Cycle power to see if the message
clears, if not, contact your
authorized service representative.
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