Lexmark 5770 - Manual (Page 51)

Troubleshooting 45
Troubleshooting
• Bidirectional communications is NOT disabled in
your Lexmark printer software.
a From the printer's Control Program, click
the Options Tab.
For help opening the Control Program, see
“Opening the Control Program” on page 8.
b
Make sure Disable Bidirectional Communi-
cations is not checked.
If you checked all of the items above, and still experience
bidirectional communications problems, continue with
“Solving bidirectional communications problems”.
Solving bidirectional communications
problems
Bidirectional communications problems have two
primary causes:
• You are using the wrong parallel cable.
• Your computer system is not configured for
bidirectional communications.
Replacing the parallel cable
You must use an IEEE 1284-compliant parallel cable that
supports bidirectional printing. Verify your printer cable
meets these specifications. To purchase a Lexmark cable,
see “Parallel cable” on page 65.
Computer configuration problems
If you have the correct parallel cable and bidirectional
communications problems persist, you may have a
computer configuration problem. The three configuration
problems usually preventing or disrupting bidirectional
communications are:
• Your computer does not support bidirectional
communications.
5700.book : trouble.fm Page 45 Thursday, July 16, 1998 3:49 PM