256
Chapter
7
Diagnosing Problems
426 BC READ ERR
See User Manual
Yes
Bar code read error: The
printer does not detect
the presence of the
ribbon bar code sensor.
1.
Power down the printer.
2.
Remove the ribbon and
wipe the two lenses of the
ribbon bar code sensor with
a lint-free cloth or cotton
swab.
3.
Install the ribbon and power
on the printer. If the
message reappears,
replace the ribbon.
733 DP FIFO Busy*
Yes
There is a timing problem
in the Engine Controller
firmware.
1.
Cycle power. Run the print
job again. If the message
reappears, download the
emulation software again.
2.
Cycle power. Run the print
job again. If the message
reappears, contact your
authorized service
representative.
1
A TO D OVERUN*
No
Analog to Digital
Overrun. The analog-to-
digital converter
overflowed.
Contact your authorized service
representative.
1
ACCESS NULL PTR*
No
Access Null Pointer: The
processor tried to access
a pointer that contains
nothing (null).
Contact your authorized service
representative.
1
ACTIVATE LOST
No
The printer detects a
twinax protocol
communication error and
reports the error.
Contact your authorized service
representative.
1
B00 STATUS: SDRAM
DETECTION 166MHZ
No
Status message: the
printer has begun its
boot-up routines and is
checking for the
presence of SDRAM.
No action required.
B01 STATUS: 8245
SDRAM TEST 32MB
No
Status message: printer
boot-up routines are
testing SDRAM.
No action required.
B10 ERROR: NO
DRAM DETECTED*
No
SDRAM DIMM may not
be properly installed.
Boot-up routines did not
detect the presence of
the SDRAM DIMM.
Cycle power to see if the message
clears, if not, contact your
authorized service representative.
1
Table 15. LCD Message Troubleshooting Table
Displayed Message
Can User
Correct?
Explanation
Solution
Summary of Contents for P7002H
Page 1: ...P7000 User s Manual ...
Page 3: ...User s Manual The Printronix P7000 Series PSA3 Printers ...
Page 10: ...Table of Contents ...
Page 18: ...18 Chapter 1 Contact Information ...
Page 24: ...24 Chapter 2 Printer Component Locations ...
Page 232: ...232 Chapter 4 Printer MGMT ...
Page 246: ...246 Chapter 5 RS 232 And RS 422 Serial Interfaces ...
Page 292: ...292 Appendix B ...
Page 304: ...304 Appendix C Performance Limitations ...
Page 340: ...340 ...
Page 341: ......
Page 342: ...178660 001F 178660 001 ...