Brother International HL-7050N Users Manual - English - Page 194

Examples of poor print quality ABCDEFGH abcdefghijk ABCD abcde 01234 White lines down the page ABCDEFGH abcdefghijk ABCD abcde 01234 Black toner marks across the page Recommendation ■ You may clear the problem by wiping the scanner window with a soft cloth. See Cleaning the inside of the printer or the Maintenance Tutorial video on the supplied CD-ROM. ■ The drum unit may be damaged. Put in a new drum unit. See Replacing the drum unit in Chapter 5. ■ The drum unit may be damaged. Put in a new drum unit. See Replacing the drum unit in Chapter 5. 94 mm (3.7 in.) 94 mm (3.7 in.) White Spots on black text and graphics at 94mm (3.7 in.) intervals ■ The drum unit may be damaged. Put in a new drum unit. See Replacing the drum unit in Chapter 5. 94 mm (3.7 in.) 94 mm (3.7 in.) Black spots at 94 mm (3.7 in.) intervals. TROUBLESHOOTING 6 - 26