Brother International MFC 7440N Users Manual - English - Page 116
Curled or wavy, White Spots on black text, and graphics at, 95 in., mm intervals - drum replacement
UPC - 012502620631
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Examples of poor print quality Recommendation Check the paper type and quality. High temperatures and high humidity will cause paper to curl. If you do not use the machine often, the paper may have been in the paper tray too long. Turn over the stack of paper in the paper tray. Also, fan the paper stack and then rotate the paper 180° in the paper tray. Curled or wavy 2.95 in. (75 mm) 2.95 in. (75 mm) Make ten copies of a blank, white sheet of paper. (See Making multiple copies on page 70.) If the problem is not solved, the drum unit may have glue from a label stuck on the OPC drum surface. Clean the drum unit. (See Cleaning the drum unit on page 123.) The drum unit may be damaged. Put in a new drum. (See Replacing the drum unit on page 130.) White Spots on black text and graphics at 2.95 in. (75 mm) intervals 2.95 in. (75 mm) 2.95 in. (75 mm) Black Spots at 2.95 in. (75 mm) intervals 102