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Diagnostic Information 2-35
4044-XXX
Parallel Port Service Check
1. Perform a print test to make sure the printer prints correctly.
2. Be sure the printer cable is designed for bidirectional printing.
3. Be sure the user application is set up correctly. Improper set up
can prevent establishing a communication link with the printer.
4. Try enabling the parallel port pull-up resistors. Go to
“Parallel
Mode 1” on page 3-8
. Try printing a test page after enabling
resistors. If the printer still does not print, disable the resistors.
5. If the internal print test page prints correctly, the user
application/printer driver is set up correctly and the correct bi-
directional parallel cable is installed, yet the printer still fails to
print on command from the host, replace the controller board.