Question about Brother HL4040CN Laser Printer
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: printing problem
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
SOURCE: I replaced the drum on
EL, which wants to represent E6 is not a drum error code. EL (E6) means NVRAM error on main PCB.
If the error does not go away disconnecting power, then the main PCB (controller board) must be replaced.
Several forums cannot understand EL is E6 and point in the wrong direction. The full list of error codes is reported in service manual at pages 22-23. Service manual has been uploaded below:
A full service manual: mfc9840cdwservice man.
Posted on May 18, 2011
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