Functional checks
Use the following procedures to help diagnose and solve problems that occur in the print engine.
Engine test
To verify that the print engine (all components except the formatter, formatter DIMMs, EIO products,
and the stacker or stapler/stacker) is functioning, print an engine test page. Use a small, non-
metallic, pointed object to depress the engine-test switch, which is located on the back of the MFP.
NOTE The standard output bin must be installed in order for the engine-test page to print. If
either the stapler/stacker or the 3-bin mailbox is installed, a jam occurs.
Figure 7-1 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. See Information pages.
If the page prints, the formatter is functioning.
The heartbeat LED on the formatter also indicates whether the formatter is functioning. See
Formatter lights.
Functional checks 399
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