61206120N N/B MAINTENANCEN N/B MAINTENANCE
8.8.1414 PIO PORT TEST ERRPIO PORT TEST ERROORR
SSyympmptotom:m:
When When a pria prinnt ct coommmmanand is d is ississuued,ed, pr printeinter prinr prints nts nootthhiinng g or gor gaarbrbagage.e.
PPIIOO t teesstt errerror or
1. Check whether cables , printer & printer
driver are installed properly.
2. Check if printer is on and in ready status.
One of the following parts or signals on the motherboard may be
Board-level
Defective, plug in PIO loop back at PIO port and run PIO test
Troubleshooting
program then use an oscilloscope to check the following signals or
Yesreplace the parts one at a time and test after each replacement.
Re - test
Correct it.
OK?
Parts:Signals:
U29D/LPD [0:7]P_LPD [0:7]
No
U1 D/STB#P_STB#
ReplaceJ506D/SLIN#
BIOSNoD1D/INIT#
M/B board
SetupCorrect itD/AFD#
D/ERR#
OK?D/ACK#
D/BUSY
YesD/PE
D/SLCT
Try another known good printer.
Yes
PrintingReplace
Ok?printer.
No
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ACEC
