Question about Brother MFC-7820N Laser Printer
When I scan a page there are three vertical lines on every page that appear in the scan. Help!!!
A dirty glass base can cause ‘spots’ or blemishes to appear on your final printout. Additionally, if you had some sort of opaque liquid that may have transferred on to the glass base from a previous operation. But the majority of the unwanted vertical lines are generally caused by either a dirty or damaged print roller or faulty LEDs in the Scanner Module.
To separate one from the other you have to check the following:
Do you only see the lines with a Scan operation?
Do your print jobs print fine without any unwanted lines?
If you only see the unwanted lines during a Scan operation, then most likely you have a fault/dirty/obstructed LED module.
If you see the unwanted lines with all print operations (Scan, Print and Copy), then you most likely have a worn out, damaged or dirty Print Roller.
Hope this helps…
Posted on Jan 07, 2010
You need to clean the glass.
Posted on Sep 29, 2008
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Posted on Jan 02, 2017
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