I have Brother HL 5150D Laser printer which puts a white line across the page 94 mm from the top of the page. The drum circumference is 94 mm, but the drum does not appear to be damaged and the line is not repeated further down the page.
When duplex printing the line is 94 mm from the bottom of the second page. Is this a printer software problem?
Brother have not seen this before and haven't been able to resolve the problem. I am using a non-Brother toner cartridge.
Any thoughts will be welcome.
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