Monochrome Image Quality Test Pattern (Function Code 09) - Brother DCP-L8400CDN Service Manual

1.3.4

Monochrome image quality test pattern (Function code 09)

<Function>
This function is used to print various monochrome test patterns and check the quality and if
there is any image loss.
<Operating procedure>
(1) Press the 0 and 9 keys in this order in the initial state of the maintenance mode.
"MAINTENANCE 09" is displayed on the LCD. Printing of a monochrome image quality
test pattern (see the figure below) is started.
(2) When printing is finished, the machine returns to the initial state of the maintenance
mode.
Fig. 5-2
5-9
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