Question about Brother MFC-9440CN Laser Printer
The "drum" is where the laser adds/subtracts an electrical charge to each spot on the drum.
The printer "throws" the powdered-ink at the drum.
The ink sticks to the "charged" spots, and does not stick to the "non-charged" spots.
Then, the printer puts a sheet of paper in contact with the drum, and the ink is transferred to the paper.
Then, the "fuser" heats the paper & ink, and "melts" the ink into the paper.
So, changing the ink-cartridges will _NOT_ fix any "drum" problem.
Posted on Jun 01, 2010
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Posted on Jan 02, 2017
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