Oki B 2400 - Manual (Page 57)

Diagnostic Aids 3-3
24xx
Print Test
The print test helps you test and troubleshoot the printer. To start the
print test:
1. Paper must be at the print position; test does not print if paper is
parked.
2. Press and hold Line Feed and turn the printer on.
3. Release Line Feed when the printing starts.
4. To interrupt the printer test:
a. Press Start/Stop. The test stops after a complete line of
characters prints.
b. Press Start/Stop to continue the test sample.
5. To stop the printer test, turn the printer off.
If the print test fails, go to “Start” on page 2-1 .
Note: The short horizontal lines at the top of the sample are a test
of each printhead wire numbered in sequence, from top to bottom.