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5-18 Troubleshooting
Printing a Self Test
Running the printer’s self test helps you determine whether the
printer or the computer is causing the problem:
❏ If the self test results are satisfactory, the printer is working
properly and the problem probably results from your printer
driver settings, application settings, computer, or interface
cable. (Be sure to use a shielded interface cable.)
❏ If the self test does not print properly, there is a problem with
the printer. See “Problems and Solutions” for possible causes
and solutions to the problem.
You can print a self test using either single sheets or continuous
paper.
Note:
Self test prints characters on the full width of the printable area. Use
paper that is at least 297 mm wide, such as an A3-size sheet.
To perform a self test, follow these steps:
1. Make sure paper is loaded and the printer is turned off.
Caution:
Whenever you turn off the printer, wait at least five seconds
before turning it back on; otherwise you may damage the
printer.