Question about Brother HL-4040CN Laser Printer
Vertical line is probably scratch in Toner/image drum or one of the erase LED bar lamps is out. Start by replacing the Drum and see if it is better. LED erase lamp assy is more expensive so I hope for you that it is the drum.
Saw this scratched tomer drum on a ton of HP I serviced while in Europe
Posted on Mar 26, 2009
a 6ya Technician can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017
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