Brother International MFC-J870DW Basic Users Guide - Page 98

a Press . NOTE You can also press Ink. (Settings) and b Press Cleaning. c Press Black, Color or All. The machine cleans the print head. When cleaning is finished, the machine will go back to Ready mode. NOTE • If you clean the print head at least five times and the print has not improved, try installing a new Genuine Brother Brand replacement ink cartridge for each problem color. Try cleaning the print head again up to five more times. If the print has not improved, call Brother Customer Service. (See Brother numbers on page i.) • You can also clean the print head from your PC. For more information, see Software and Network User's Guide: Clean the Print Head (Windows®) or Clean the Print Head (Macintosh). Checking the print quality A If faded or streaked colors and text appear on your printouts, some of the print head nozzles may be clogged. You can check this by printing the Print Quality Check Sheet and looking at the nozzle check pattern. a Press . NOTE You can also press Ink. (Settings) and b Press Test Print. c Press Print Quality. d Press OK. The machine begins printing the Print Quality Check Sheet. e Check the quality of the four color blocks on the sheet. f The Touchscreen asks you if the print quality is OK. Do one of the following:  If all lines are clear and visible, press Yes to finish the Print Quality check and go to step j.  If you can see missing short lines as shown below, press No. OK Poor g The Touchscreen asks you if the print quality is OK for black and then the three colors. Press Yes or No. 84