Question about Epson Perfection 4990 Flatbed Scanner
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Posted on Jan 02, 2017
SOURCE: Lines through negative scans
Clean the glass surface with Iso propyl alcohol (Industrial grade is enough). Dont use any solvent. Just for immediate usage, you can use your aftershave and clean. Clen with a soft cloth.
S. Mohan, Chennai. India
Posted on Dec 16, 2008
SOURCE: Lines on scanned documents
pls update the driver
pls clean the scan glass , if it helps otherwise
ur CCD engine inside the scanner is weak now after use there is no point in getting it replaced as it is not worth pls find a new scanner
HP are excellent and MUSTEK are good and economical
pls rate me if i diagnosed ur fault
Posted on Mar 09, 2009
SOURCE: vertical line in scanned image
This is because of dust sticking to the glass. Clean with isopropyl alcohol (rubbing alcohol) and dont use solvents. For emergency you can use your after shave but take care only to clean the glass portion!
S. Mohan, Chennai, India
Posted on Jul 09, 2009
If the lines are in the same location for all scanned outputs, it is clearly dust on the scanner glass. Clean it thoroughly.
S. Mohan, India
Posted on Jul 09, 2009
Tips for a great answer:
Nov 28, 2013 | Epson Perfection v600
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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