Lexmark Optra SC 1275 Service Manual page 51

Attendance Message
54 Serial Option x Error
54 Parallel Error
2-16
Action
A serial interface error has been
detected (framing or parity). This
error usually indicates the serial link
has not been set up correctly.
x represents optional serial port 1
through 3.
Press and hold Select and then
press Return to determine the
cause of the host interface error.
When the serial error is displayed,
the reporting of other serial errors is
suppressed until interface parame-
ters are changed or the printer is
turned off.
Check the interface:
• Verify that the correct cable is
used.
• Make sure the serial interface
parameters (protocol, baud, parity,
data bits) are correct.
• Press Go to clear the message
and continue printing the job. The
print job may not print correctly.
• To reset the printer:
• Press <Menu> to access the
Busy menu.
• Select Reset Printer.
An IEEE 1284 protocol error has
been detected on the parallel host
interface. This error may be due to a
faulty cable.