Brother FAX-8650P - Manual (Page 95)

V - 8
3.4 Test Pattern 1
n n 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.
n n 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 1.
Test Pattern 1