Question about Brother MFC 7420 All-In-One Laser Printer
The printer is set on TAD and will not allow me to print/fax/copy/or scan anything. What do I have to do to get it back to its correct setting?
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Posted on Jan 02, 2017
Can't image it being anything but scan glass, if prints are fine, are you sure you cleaning scan glass(inside of where originals are fed)?
If so then scanner lamp faulty, but I've never come across it myself on this model.
Posted on Oct 27, 2007
SOURCE: wont print anything
Move the ink cartridge carriage (the printhead) to the middle of the printer like you're going to change cartridges. Take out all the ink cartridges. There should be two black springs on either side of the printhead. Remove these and the printhead should pop out. Clean the nozzels (the little parts that squirt out ink) and reassemble.
If this doesn't work, then you'll have to replace the printhead.
Posted on Oct 28, 2007
I realise this is probably too late for you Janet and you will have bought a new drum unit by now or replaced the printer! The three lines appeared on my print-out from a new drum I installed and after investigation it transpired that there was some toner residue that had dried on the drum (from testing at manufacture stage probably) and reprinted three bold lines on a sheet of A4. The solution is to use a soft piece of cloth and rub the lines off the drum through the gap at the front of the drum unit. The drum can be rotated by turning the gear cog on the side, then once the reside has been removed from the drum and it is clean, the lines will have disappeared. I wouldn't use any solution on the drum, just gentle rubbing should suffice.
Posted on Aug 19, 2010
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