Brother International HL-6180DW User's Guide - English - Page 159

Troubleshooting Examples of poor print quality Recommendation  Clean the corona wire inside the drum unit by sliding the green tab. Be sure to return the green tab to the home position (a). uu Cleaning the corona wire uu page 118  The drum unit may be damaged. Put in a new drum unit. uu Replacing the drum unit uu page 111 All black  Make sure that you use paper that meets our specifications. A rough surfaced paper or thick print media can cause this problem. ABCDEFGH abcdefghijk uu Acceptable paper and other print media uu page 2. ABCD abcde  Make sure that you choose the appropriate media type in the printer driver or in the machine's Media Type menu setting. 6 01234  The problem may disappear by itself. Print multiple blank pages to clear this problem, especially if the machine has not been used for a long time. White lines across the page  The drum unit may be damaged. Put in a new drum unit. uu Replacing the drum unit uu page 111  Clean the corona wire inside the drum unit. ABCDEFGH abcdefghijk ABCD abcde 01234 uu Cleaning the corona wire uu page 118  The drum unit may be damaged. Put in a new drum unit. uu Replacing the drum unit uu page 111 Line across the page  Check the machine's environment. Conditions such as high humidity and high temperatures may cause this print quality problem. uu Product Safety Guide: Choosing a location  If the problem is not solved after printing a few pages, put in a new drum unit. uu Replacing the drum unit uu page 111 White lines, bands or ribbing across the page 153