Individual component diagnostics
From the diagnostics menu, you can run tests to check the status of various components in the MFP.
During many of the diagnostic tests, the MFP enters a special diagnostics mode, which allows you to
send print jobs and interact with the menus. The MFP stays in this mode until you press S
TOP
and
then touch EXIT DIAGNOSTICS at the top of the DIAGNOSTICS menu. In some cases, the MFP
must re-initialize after performing a component-level diagnostic test.
Paper-path-sensor test
The paper-path-sensor test checks for the presence of media at each of the sensors along the paper
path. After you have selected this test from the DIAGNOSTICS menu, you can print internal pages or
send a print job from a computer. As the media passes each sensor, the sensor's state is updated.
On the control-panel display, each sensor is represented by a string of alphabetic letters followed by
a corresponding status for each sensor. Use
Table 7-21 Paper-path sensor letter designations to
associate the letters that are shown on the control-panel display with the sensor that they represent.
A “0” next to the letter indicates that no media is present. A “1” indicates that media is present. Press
S
TOP
to stop the job, and then touch EXIT DIAGNOSTICS to exit the special diagnostics mode.
Table 7-21 Paper-path sensor letter designations
Letter Component Letter Component
A Tray 5 paper feed F PS103: top-of-page
B Tray 4 paper feed G
C Tray 3 paper feed H PS110: reversing paper sensor
D PS106: front paper width J PS108: exit sensor to the fuser
E PS102: tray 2 pre-feed K PS109: delivery
Tools for troubleshooting 423
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