Brother International MFC-J870DW Basic Users Guide - Page 97
Cleaning and checking the machine, Cleaning the scanner, Cleaning the print head - printing blank pages
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Cleaning and checking the machine A Cleaning the scanner A a Unplug the machine from the AC power outlet. b Lift the document cover (1). Clean the scanner glass (2) and the white plastic (3) with a soft lint-free cloth moistened with a non-flammable glass cleaner. 1 3 2 c In the ADF unit, clean the white bar (1) and the glass strip (2) with a lint-free cloth moistened with a non-flammable glass cleaner. 1 2 Routine maintenance NOTE In addition to cleaning the scanner glass and glass strip with a non-flammable glass cleaner, run your fingertip over the glass to see if you can feel anything on it. If you feel dirt or debris, clean the glass again concentrating on that area. You may need to repeat the cleaning process three or four times. To test, make a copy after each cleaning attempt. i When there is a spot of dirt or correction fluid on the glass strip, the printed sample shows a vertical line. After the glass strip is cleaned, the vertical line is gone. Cleaning the print head A To maintain good print quality, the machine will automatically clean the print head when needed. You can start the cleaning process manually if there is a print quality problem. Clean the print head if you get a horizontal line in the text or graphics, or blank text on your printed pages. You can clean Black only, three colors at a time (Yellow/Cyan/Magenta), or all four colors at A once. Cleaning the print head consumes ink. Cleaning too often uses ink unnecessarily. IMPORTANT DO NOT touch the print head. Touching the print head may cause permanent damage and may void the print head's warranty. 83
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