Question about HP Scanjet 4470c Flatbed Scanner

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A yellow line appears on all of my scans. How can solve this?

A yellow line appears on all of my scans roughly two thirds of the way on each page.

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Check the glass of the scanner. It may have some stain over it.

Posted on Dec 13, 2008

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How to get rid of the yellow line that appears after image is scanned?


Are you using manufacturer ink or third party ink? Sometimes this could be the issue.

Aug 29, 2014 | Fujitsu fi-6130 duplex scanner

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Scanner leaving black streaks


There are two possible fixes.

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The following is provided by courtesy of Lexmark:
Problem Vertical lines; Auto document feeder scan anomaly; ADF scanning problem; Scan issue; Scanner issue; Visible line; Streaks show on page; solid line down the page; Top to bottom line; Smudge runs down the page; Opaque line; Broken line; Bar all the way down the page Solution Overview

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

copyvertstreaks.jpg

Who should consider this article?

Any user of an MFP or All-In-One printer experiencing the following symptoms:

  • -Vertical lines only when using the Autodocument Feeder (ADF).
  • -Observed with any type of scan job (e-mail, ftp, solutions, fax).
  • -However, normal expected output when the page is scanned from the scanner flatbed.



ADF scan behavior

Think of it this way:

  • -The page is pulled from the ADF.
  • -The moving page slides across an ADF-designated portion of glass.
  • -The image sensor, which is located under the glass, reads and interprets the moving page's contents.
  • -Contamination on this ADF glass is seen by the image sensor for the entire length of the page.
  • -The image processor interprets the image sensor's repeated capture of this contamination as a vertical solid line.
  • -Any ADF scan function now exhibits a vertical line.



adfvertscanline.gif




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:

  • -Clear adhesive tape
  • -Glue
  • -Ink pen
  • -Paper
  • -Marker
  • -White out
  • -Staples
  • -Environmental dust or dirt
HINT: Ink marks can be especially hard to see and almost translucent at first sight. However, the image sensor (CCD) registers them as a mark. 3 Use a clean, soft, moistened cloth to thoroughly clean and remove any marks or debris. 4 Inspect the underbelly or underside of the ADF for any marks or debris. 5 Perform another scan to see if cleaning the glass alleviated the issue. 6 Repeat the procedure if a vertical line still appears.
Remember! Printing and scanning from the scanner flatbed work fine.
7 This time, place an intentional mark on a blank sheet of paper and take note of its location. Now place that sheet of paper in the ADF and make a copy.
8 Evaluate the distance of the vertical line to the your mark. 9 Inspect that area of the glass for further debris or marks and clean as necessary.




Other Possibilities


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.


May 01, 2012 | Lexmark International LEX90T9005 Inkjet...

1 Answer

Very crisp vertical grey line appears (glass clean)


I have the exact same problem. It was there since I first bought the MFC-7840W.
Vertical line appears in scans using the automatic document feeder (ADF).
Vertical line does not appear when scanning single page (placing it directly on the glass -- i.e. not using the ADF).

Cleaning the glass strip for the ADF (or the white pressure bar overhead) does not solve the problem.
The problem does not occur with copies using the ADF (using the COPY button which is basically a scan and print). This would suggest that dust and dirt is not to blame because that would also appear on the copies.
But since I believe a copy is basically a scan plus print, they should be using the same electronics -- a hardware problem on the scan would likely appear on a copy also -- there is some difference between how they accomplish this.
It's definitely not a software issue since it occurs on all versions of Windows and Mac OS X (and multiple computers). It also does not matter whether I "push" the scan to the computer by using the scan button on the MFC... or "pull" the scan from the MFC using the Brother Control Center software.

Aug 12, 2009 | Office Equipment & Supplies

1 Answer

Vertical line appears on the faxed page sent to


This sounds like a dirty scanning glass in the adf feeder. clean the glass with a soft cloth. if this doesn't solve the problem, there might be dirty optics under the scanning glass.

Aug 03, 2009 | HP LaserJet 3050 All-In-One Printer

1 Answer

When scanning, the scanned page is not readable from a third of the page down to two thirds of the page.


It is important that the item you scan comes in close contact with the scanner glass. If the resulting scanned image is not clear, check to see that the item is in full contact with the scanner glass. The scanner uses optical character recognition (OCR) to convert text on a page to text that you can edit on your computer.
  • If you scan text but cannot edit it, make sure that you make the following selections during scanning:
  • Scanned text might not appear on your computer exactly as it appeared on the original, especially if the original contains faint or smudged text. For example, some characters might be incorrect or missing. As you edit the text, compare the scanned text against the original, and then make corrections as necessary.
  • To change text scanning options, click the Scan Document Settings button in the initial What are you scanning? screen.
  • The OCR software is installed by default when you install the HP Scanning software during scanner setup. If you use the Custom option when installing the software, you can choose not to install the OCR software. Try reinstalling the software using the default install options.
  • Email to jdiaz@coretec.us
  • If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
    Thanks, Joe

Nov 07, 2008 | HP Office Equipment & Supplies

1 Answer

1/2" yellow line appearing in the middle of a background colored page


sounds like you need a replacement drum as it sounds like it is faulty, this is a replacable part and needs to ber replaced from time to time, this is a common symptom of this fault

Oct 03, 2008 | HP LaserJet 4600dn Color Printer

1 Answer

The Thin Yellow Line


i figured it was a line that is most common - if it has a pc input - use it for the computer or better give it to the kids - they wont mind lol
thanks
scott

May 30, 2008 | Insignia IS-LCDTV32 32 in. Television

1 Answer

When printing in color a yellow line appears on document


A horizontal line U say and U don't have problems in B&W pages.... ( on the length or width af a A4 page?) the yellow line is just a line or parallel lines at the same distance?.
1-st of all try replacing the Y cartidge.

Jan 17, 2008 | HP LaserJet 2840 Printer

2 Answers

Vertical lines in scanned documents


Scan glass has muck on it, needs to be perfectly clear, it is just in where you feed originals.

Nov 21, 2007 | HP LaserJet 3050 All-In-One Printer

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