Brother MFC-9420CN - Test Pattern 1 (Function Code 09); Test Pattern 1 (Function Mode 09)

8-8 Confidential
8.1.4.5 Test Pattern 1 (Function code 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