Brother MFC-4820C User Manual page 332

STEP A: Colour block quality check
The LCD shows:
4
Check the quality of the four colour blocks on the sheet.
(BLACK/CYAN/YELLOW/MAGENTA).
5
If all lines are clear and visible, press
—OR—
If you can see missing short lines as shown below, press
The LCD will ask you if the print
quality is OK for each colour.
6
2
Press (NO) for any colour with a
problem.
The LCD shows:
1
Press (YES). The MFC will start
cleaning the colours.
7
After cleaning is finished, press
printing the Print Quality Check Sheet again and then return to
STEP A.
8
If STEP A is OK, press
23 - 12 TROUBLESHOOTING AND ROUTINE MAINTENANCE
OK
1
to proceed to STEP B.
IS STEP "A" OK?
1.YES 2.NO
1
(YES) to go to STEP B.
Poor
BLACK OK?
1.YES 2.NO
START CLEANING?
1.YES 2.NO
Fax Start
. The MFC will start
2
(NO).