Lexmark 2070 Color Jetprinter Service Manual - Page 30

Parallel Port Test, Attach the wrap plug to the parallel port.

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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

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3-5
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.