HP dx7300 Technical Reference Manual page 160

Error Messages and Codes
A.7 Printer Error Messages (4xx-xx)
Message Probable Cause
401-01 Printer failed or not connected
402-01 Printer data register failed
402-02 Printer control register failed
402-03 Data and control registers failed
402-04 Loopback test failed
402-05 Loopback test and data reg.
failed
402-06 Loopback test and cntrl. reg.
failed
402-07 Loopback tst, data/cntrl. reg.
failed
402-08 Interrupt test failed
402-09 Interrupt test and data reg. failed
402- 1 0 Interrupt test and control reg.
failed
A.8 Video (Graphics) Error Messages (5xx-xx)
Message Probable Cause
501-01 Video controller test failed
502-01 Video memory test failed
503-01 Video attribute test failed
504-01 Video character set test failed
505-01 80x25 mode, 9x14 cell test
failed
506-01 80x25 mode, 8x8 cell test failed
507-01 40x25 mode test failed
See Table A- 1 4 for additional video (graphics) messages.
A-8
Table A-6
Printer Error Messages
Message
402- 1 1
402- 1 2
402- 1 3
402- 1 4
402- 1 5
402- 1 6
402-01
403-xx
404-xx
498-00
--
Table A-7.
Video (Graphics) Error Messages
Message
508-01
509-01
510-01
51 1-01
512-01
514-01
516-01
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Probable Cause
Interrupt test, data/cntrl. reg. failed
Interrupt test and loopback test failed
Int. test, LpBk. test., and data register failed
Int. test, LpBk. test., and cntrl. register failed
Int. test, LpBk. test., and data/cntrl. reg.
failed
Unexpected interrupt received
Printer pattern test failed
Printer pattern test failed
Parallel port address conflict
Printer failed or not connected
--
Probable Cause
320x200 mode, color set 0 test failed
320x200 mode, color set 1 test failed
640x200 mode test failed
Screen memory page test failed
Gray scale test failed
White screen test failed
Noise pattern test failed
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