Brother International MFC 7440N Users Manual - English - Page 114
Improving the print quality - scanner driver
UPC - 012502620631
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Improving the print quality B Examples of poor print quality White lines across the page ABCDEFGH abcdefghijk ABCD abcde 01234 ABCDEFGH abcdefghijk ABCD abcde 01234 White lines down the page Hollow print ABCDEFGH abcdefghijk ABCD abcde 01234 Gray background Recommendation Make sure that you use paper that meets our specifications. A rough surfaced paper or thick print media can cause the problem. (See Acceptable paper and other print media on page 14.) Make sure that you choose the appropriate media type in the printer driver or in the machine's Paper Type menu setting. (See Acceptable paper and other print media on page 14 and Basic tab in the Software User's Guide on the CD-ROM.) The problem may disappear by itself. Print multiple pages to clear this problem, especially if the machine has not been used for a long time. The drum unit may be damaged. Put in a new drum unit. (See Replacing the drum unit on page 130.) Wipe the laser scanner windows with a soft cloth. (See Cleaning the laser scanner window on page 120.) Make sure that a torn sheet of paper is not inside the machine covering the scanner window. The toner cartridge may be damaged. Put in a new toner cartridge. (See Replacing a toner cartridge on page 126.) The drum unit may be damaged. Put in a new drum unit. (See Replacing the drum unit on page 130.) Make sure that you use paper that meets our specifications. (See Acceptable paper and other print media on page 14.) Choose Thick paper mode in the printer driver, choose Thick in the machine's Paper Type menu setting or use thinner paper than you are currently using. (See Paper type on page 20 and Basic tab in the Software User's Guide on the CD-ROM.) Check the machine's environment. Conditions such as high humidity can cause hollow print. (See Choosing a location on page 82.) The drum unit may be damaged. Put in a new drum unit. (See Replacing the drum unit on page 130.) Make sure that you use paper that meets our specifications. (See Acceptable paper and other print media on page 14.) Check the machine's environment. Conditions such as high temperatures and high humidity can increase the amount of background shading. (See Choosing a location on page 82.) The toner cartridge may be damaged. Put in a new toner cartridge. (See Replacing a toner cartridge on page 126.) The drum unit may be damaged. Put in a new drum unit. (See Replacing the drum unit on page 130.) 100