Brother MFC-3820CN - Manual (Page 159)

13 - 12 TROUBLESHOOTING AND ROUTINE MAINTENANCE
STEP A: Color block quality check
The LCD shows:
4
Check the quality of the four color
blocks on the sheet. (Black/Cyan/Yellow/Magenta).
5
If all lines are clear and visible, press 1 ( Yes ) to go to STEP B.
—OR—
If you can see missing short lines as shown below, press
2 ( No ).
The LCD will ask you if the print
quality is OK for each color.
6
Press 2 ( No ) for any color with a
problem.
The LCD shows:
Press
1 ( Yes ). The MFC will start
cleaning the colors.
7
After cleaning is finished, press Black Start or Color Start .
The MFC will start printing the Print Quality Check Sheet again
and then return to STEP A.
8
If STEP A is OK, press 1 to proceed to STEP B.
OK Poor
Is Step “A” OK?
1.Yes 2.No
Black OK?
1.Yes 2.No
Start Cleaning?
1.Yes 2.No