Test Pattern (Function Code 09) - Brother HL-4040CN Service Manual

1.4.2 Test Pattern (Function code 09)

<Function>
This function prints out a test pattern (Print Quality Check sheet) to allow the service personnel
to check the print quality.
<Operating Procedure>
(1) Press the
the maintenance mode. Then, press the OK button.
(2) Upon completion of test pattern printout, the machine returns to the initial stage of the
maintenance mode.
The figure below shows a test pattern that is printed.
or button to display "MAINTENANCE 09" on the LCD in the initial stage of
Fig. 5-1
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