Cannot print keeps saying clean printer cannot find info to do it

Found this on the web. Click on link below to print the entire manual out to keep. Below are steps to do cleaning. If you find this helpful pls rate me. Thanks and Good Luck.

http://www.brother-usa.com/ModelDocuments/Consumer/Users%20Manual/UM_MFC_210C_420CN_EN_286.PDF

How to improve print quality Cleaning the print head
To ensure good print quality, the MFC will regularly clean the print head. You can start the cleaning process manually if needed. Clean the print head and ink cartridges if you get a horizontal line in the text or graphics on your printed pages. You can clean Black only or three colors at a time (Cyan/Yellow/Magenta), or all four colors at once.
Cleaning the print head consumes ink. Cleaning too often uses ink unnecessarily.
Caution
Do NOT touch the print head. Touching the print head may cause permanent damage and may void the print head’s warranty.
1 Press Ink.
2 Press ▲ or ▼ to select Cleaning.
Press Menu/Set.
3 Press ▲ or ▼ to select Black, Color or All.
Press Menu/Set.
The MFC will clean the print head. When cleaning is finished, the MFC will go back to standby mode automatically. If you clean the print head at least five times and the print has not improved, call Brother Customer Service (see Brother numbers on page i).
Checking the print quality
If faded or streaked colors and text appears on your output, some of the nozzles may be clogged. You can check this by printing the Print Quality Check Sheet and looking at the nozzle check pattern.
1 Press Ink.
2 Press ▲ or ▼ to select Test Print.
Press Menu/Set.
3 Press ▲ or ▼ to select Print Quality.
Press Menu/Set.
4 Press Color Start.
The MFC begins printing the Print Quality Check Sheet.
5 Check the sheet to see if the quality is OK by following these steps:
Color block quality check
The LCD shows:
6 Check the quality of the four color blocks on the sheet.
7 If all lines are clear and visible, press 1 (Yes), and go to Step 10.
—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 black and three colors.
OK Poor
Is Quality OK?
1.Yes 2.No
Black OK?
1.Yes 2.N
8 Press 2 (No) for Black or three colors
with a problem.
The LCD shows:
Press 1 (Yes). The MFC will start cleaning the print head.
9 After cleaning is finished, press Color Start. The MFC will start
printing the Print Quality Check Sheet again and then return to
step 5.
10 Press Stop/Exit.
There is more, but too long to put here.