Lexmark 6300 Series Service Manual page 40

4416-XXX
8. SRAM Test—Verifies that all the address buses and data buses that
connect to the SRAM area work correctly, and performs the read/write
of data to the SRAM area with all the address buses and data buses.
While checking, Testing appears on the LCD. Then a Success
message appears for three seconds, or a Failure message appears
until the Cancel button is pressed.
9. Media Sensor Test—The media sensor reads the current paper type. A
message displays the type of paper. If no paper is detected, None
appears on the LCD.
10. Last USB Connect Speed—Shows the status and connection speed of
the USB connection.
11. Show Font—Displays all the characters of the font set in both white and
dark gray. The Up Arrow and Down Arrow buttons allow you to navigate
through the font set.
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Service Manual