I need to test several OKI 3410's

Procedure
To perform the Font Sample Test, follow this procedure.
1. Verify that continuous feed paper is installed.
2. Verify that the ribbon is correctly installed.
3. Verify that the width of the installed paper matches the paper width menu setting.
4. Power OFF the printer.
5. Press LINE FEED as you power ON the printer.
6. The test will print.
7. To stop the test (at any time), press SELECT.
8. When the two page test is complete, the SELECT lamp will turn OFF.
9. Press SELECT to place the printer ON-LINE.

Good Luck