Test Pattern 1 (Function Mode 09) - Brother MFC-9420CN Service Manual

8.4.5 Test Pattern 1 (Function mode 09)

Function
This function, much like the copying function, prints out test pattern 1 to allow the service
personnel to check for record data missing or print quality.
Operating Procedure
Press the 0 and 9 keys in this order in the initial stage of the maintenance mode.
The figure below shows test pattern.
Fig. 8-3 Test Pattern
8 -8
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