Monochrome Image Quality Test Pattern (Function Code 09) - Brother HL-4140CN Service Manual

1.4.2

Monochrome image quality test pattern (Function code 09)

<Function>
This function allows you to print various monochrome test patterns and check the quality and if
there is any image loss.
<Operating procedure>
(1) Press the
the maintenance mode. Then, press the OK button.
(2) Printing of a monochrome image quality test pattern (see the figure below) is started.
When printing is finished, the printer returns to the initial state of the maintenance mode.
or button to display "MAINTENANCE 09" on the LCD in the initial state of
Fig. 5-1
5-4
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