My Brother printer greys out my print documents. To fix this problem, please use the recommended paper for your Brother printer found at http://solutions.brother.com/Library/faq/printer/prfaq0656/prfaq0656zl2.html. You should also check the conditions around your printer as high temperature and high humidity conditions can increase the amount of background shading. As a last resort you might have to install a new toner cartridge.
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