Question about Brother HL-5240 Laser Printer

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Brother printer prints solid black on one side

I have a Brother laser printer HL 5240. It has worked fine until one day it started printing solid black on page. What is the problem?

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This is caused by a faulty drum/charging circuit or laser unit. The drum is positively charged with static electricity and a laser draws the image onto the drum (changing the charge to negative) the toner is positively charged to it will adhere to the negatively charged image which is now on the drum. your problem is that the drum is either not being positively charged or the laser is charging the whole drum. There is a corona wire on the drum, remove the drum, sweep the corona wire (there will be a tab that moves left and right) and try it again. next step is to replace the drum. if you dont have a spare drum or one from another printer then it may be more cost effective to buy another printer as drums are quite expensive and it may not even be the problem.

Posted on Jun 16, 2009

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Try to check your properties you set maybe the black ink is enable for printing.

Posted on Jun 16, 2009

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