3 ] Print Out A Test Pattern (Function Code 09) - Brother MFC990CW Service Manual

[ 3 ] Print out a test pattern (Function code 09)

To check that the head/carriage unit normally sprays ink droplets from all head nozzles, print
out a test pattern with function code 09 (see
steps.
Before starting the operation below, be sure to set A4-size paper in the paper tray for printing
check patterns.
(1) Press the 0 and 9 keys in this order. (For models without numerical keypad, enter 0 and 9
using the
(2) If a missing dot or any other print problem is found, go back to [ 2 ] above to clean the
head/carriage unit again.
, and OK keys.)
Chapter 9, Section
Test Pattern
7-12
9.1.4.4) with the following
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