Parallel Port Test - Lexmark 7000 Color Jetprinter Service Manual

4092-001

Parallel Port Test

This test performs a wrap around test between the printer parallel
port and the parallel port test connector.
This test requires a parallel port wrap plug. Install the wrap plug in
the parallel port and move the jumper to pins (1 & 2) on the test
connector, before you start the test.
To run the test:
1. Turn the printer off.
2. Attach the wrap plug to the parallel port.
3. Place a two pin jumper on pins (1 & 2) of test connector J6.
4. Turn the printer on.
If the lights blink alternately, the test is failing. If the Busy Light stays
on and the Power Light blinks, the test is working properly. If the
Busy Light blinks intermittently, an intermittent failure is occurring.
Diagnostic Aids 3-5