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
Tips for a great answer:
Mar 12, 2013 | Canon DR-5010C Scanner
This article provides the self-diagnostic
steps necessary to evaluate top-to-bottom streaks that appear when
copying or scanning.
Important! This is seldom a scanner hardware failure.
The main reason for this anomaly is debris or marks on the scanner glass that is used for Auto document feeder (ADF) page scans.
Printed or Scanned Page Illustration
Who should consider this article?
Any user of an MFP or All-In-One printer experiencing the following symptoms:
Think of it this way:
Suggested Diagnosis and Fix
Step Action 1 Locate the portion of the glass designated for ADF scans.
HINT: The glass location differs by model. This area is often separate from the scanner flatbed. Please reference User's Guide for more information if you are having a difficult time locating this designated area.
2 Perform a visual inspection for any of the following recurring culprits:
If... Then... Vertical lines appear only when printing... Consider other printer-related topics such as toner cartridge, charge roll, photoconductor, transfer roll, or fuser. Contact Lexmark Technical Support. Vertical lines appear when you lay the page on the flatbed... Consider other printer-related topics such as toner cartridge, charge roll, photoconductor, transfer roll, or fuser. Contact Lexmark Technical Support. Vertical lines appear on ADF-fed printed copies, but they do not appear on scan-to-network [e-mail, FTP, folder (PC), solutions]... Consider other printer-related topics such as toner cartridge, charge roll, photoconductor, transfer roll, or fuser. Contact Lexmark Technical Support.
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