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Technical Reference Guide
Compaq Personal Computers
Changed – April 1998
A-5
A.8 PRINTER ERROR MESSAGES (4xx-xx)
Table A–7.
Printer Error Messages
Table A-7.
Printer Error Messages
Message Probable Cause Message Probable Cause
401-01 Printer failed or not connected 402-10 Interrupt test and control reg. failed
402-01 Printer data register failed 402-11 Interrupt test, data/cntrl. reg. failed
402-02 Printer control register failed 402-12 Interrupt test and loopback test failed
402-03 Data and control registers failed 402-13 Int. test, LpBk. test., and data register failed
402-04 Loopback test failed 402-14 Int. test, LpBk. test., and cntrl. register failed
402-05 Loopback test and data reg. failed 402-15 Int. test, LpBk. test., and data/cntrl. reg. failed
402-06 Loopback test and cntrl. reg. failed 402-16 Unexpected interrupt received
402-07 Loopback tst, data/cntrl. reg. failed 402-01 Printer pattern test failed
402-08 Interrupt test failed 498-00 Printer failed or not connected
402-09 Interrupt test and data reg. failed -- --
A.9 VIDEO (GRAPHICS) ERROR MESSAGES (5xx-xx)
Table A–8.
Video (Graphics) Error Messages
Table A-8.
Video (Graphics) Error Messages
Message Probable Cause Message Probable Cause
501-01 Video controller test failed 508-01 320x200 mode, color set 0 test failed
502-01 Video memory test failed 509-01 320x200 mode, color set 1 test failed
503-01 Video attribute test failed 510-01 640x200 mode test failed
504-01 Video character set test failed 511-01 Screen memory page test failed
505-01 80x25 mode, 9x14 cell test failed 512-01 Gray scale test failed
506-01 80x25 mode, 8x8 cell test failed 514-01 White screen test failed
507-01 40x25 mode test failed 516-01 Noise pattern test failed