Figure 6-11 Engine-test-print switch
The test page should have a series of vertical lines. The test page prints from the last tray that you
used. However, if the MFP has been turned off and then on since the most recent print job, the page
prints from tray 2. The MFP continuously prints test pages as long as the test-page switch is
depressed. The MFP cannot print a test page if it is in Sleep mode.
NOTE A damaged formatter might interfere with the engine test. If the engine-test page does
not print, try removing the formatter and performing the engine test again. If the engine test is
then successful, the problem is almost certainly with the formatter, the control panel, or the
cable that connects them.
Formatter test
To verify that the formatter is functioning correctly, print a Configuration page. If the page prints, the
formatter is functioning.
The heartbeat LED on the formatter also indicates whether the formatter is functioning.
Half self-test
Use the half self-test to determine which of the eight image-formation processes might be
malfunctioning.
1. Print a Configuration page.
2. Open the top cover after the paper advances half-way through the MFP, which is about 3 to
5 seconds after the main motor begins rotation. The leading edge of the paper should have
advanced past the print cartridge.
3. Remove the print cartridge.
4. Open the print cartridge drum shield to view the drum surface.
ENWW Functional checks 455
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