Parallel Port Test - Lexmark 4090-001 Service Manual

4090-001 4090-001

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 before you start the test.
To run the test:
1. Turn the printer off and place a two pin jumper on connector J6
as shown (Pins 3 & 4).
2. Attach the wrap plug to the parallel port.
3. Turn the printer on.
The power light blinks while the test runs. The busy light turns on if
the test is successful. The busy light blinks or turns off if the test
fails.
3-5