Brother International MFC-J6910dw Users Manual - English - Page 100

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 . b Press Test Print. c Press Print Quality. d Press Color Start. The machine begins printing the Print Quality Check Sheet. e Check the quality of the four color blocks on the sheet. f The LCD 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 LCD asks you if the print quality is OK for black and the three colors. Press Yes or No. h The LCD asks you if you want to start cleaning. Press Color Start. The machine starts cleaning the print head. Routine maintenance i After cleaning is finished, press Color Start. The machine starts printing the Print Quality Check Sheet again and then return to step e. j Press Stop/Exit. If you repeat this procedure at least five times and the print quality is still poor, replace the ink cartridge for the clogged color. After replacing the ink cartridge, check the print quality. If the problem still exists, repeat the cleaning and test print procedures at least five times for the new ink cartridge. If ink is still missing, call Brother Customer Service. (See Brother numbers on page i.) IMPORTANT DO NOT touch the print head. Touching the print head may cause permanent damage and may void the print head's warranty. Note i A When a print head nozzle is clogged the printed sample looks like this. After the print head nozzle is cleaned, the horizontal lines are gone. 69