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Is your HP DeskJet 3830 series scanner not working? Here is the solution Click here to view the instructions!
Common problems HP Solution Center not working : Adobe Flash Player Error and Unable to scan
We would like to share some of the most frequently asked questions about HP Solution Center not working : Adobe Flash Player Error and Unable to Scan.
HP Recommended
MFP M281fdw
Microsoft Windows 10 (64-bit)

Copied pages display two black vertical lines from top to bottom. This does not happen on printed pages. How do I fix that?

1 ACCEPTED SOLUTION

Accepted Solutions
HP Recommended

Hi,

Thanks for using the HP Forums.

 

The issue may be caused by a small spec on the ADF scanner glass, (the thin glass to the left of Flatbed scan glass)

 

This sensor is used for both the flatbed scan and the automatic document feeder (ADF), the difference is where the sensor is moved to for scanning.  When scanning from the flatbed the sensor moves across the bed, a spot in this area will result in a spot on the page.  When using the ADF the sensor is moved to the thin glass to the left of the main bed, and the paper is moved past the sensor by the ADF.  A spot in the wrong place here will result in a line down the length of the long side of the page.  Clean this areas as shown below.

 

Figure : Locate any debris on the ADF scanner glass strip

1 Locate debris on glass strip.jpg

 

If the initial cleaning does not resolve the issue it may help to shine a bright flashlight nearly parallel to the glass.  For a line on the left side of the printed page the spot will be toward the front of the printer, if the line is on the right of the paper it will correspond to a spec toward the rear of the printer.

 

 

Figure : Clean the ADF scanner glass strip

 

 

 

2 Clean ADF glass strip.jpg

 

Hope that helps!

 

 

I am an HP Employee. Although I am speaking for myself and not for HP.
Click Helpful = Yes to say Thank You.
Question / Concern Answered, Click "Accept as Solution"

View solution in original post

3 REPLIES 3
HP Recommended

Hi,

Thanks for using the HP Forums.

 

The issue may be caused by a small spec on the ADF scanner glass, (the thin glass to the left of Flatbed scan glass)

 

This sensor is used for both the flatbed scan and the automatic document feeder (ADF), the difference is where the sensor is moved to for scanning.  When scanning from the flatbed the sensor moves across the bed, a spot in this area will result in a spot on the page.  When using the ADF the sensor is moved to the thin glass to the left of the main bed, and the paper is moved past the sensor by the ADF.  A spot in the wrong place here will result in a line down the length of the long side of the page.  Clean this areas as shown below.

 

Figure : Locate any debris on the ADF scanner glass strip

1 Locate debris on glass strip.jpg

 

If the initial cleaning does not resolve the issue it may help to shine a bright flashlight nearly parallel to the glass.  For a line on the left side of the printed page the spot will be toward the front of the printer, if the line is on the right of the paper it will correspond to a spec toward the rear of the printer.

 

 

Figure : Clean the ADF scanner glass strip

 

 

 

2 Clean ADF glass strip.jpg

 

Hope that helps!

 

 

I am an HP Employee. Although I am speaking for myself and not for HP.
Click Helpful = Yes to say Thank You.
Question / Concern Answered, Click "Accept as Solution"
HP Recommended

Thanks for your suggestions. I did what you suggested last night and it helped some, but there was still a faint vertical line. HP tech support had me take a photo of that glass section, and what we saw was what looked like a faint vertical scratch i nthe overlying plastic. Thus, HP is sending me a replacement since this printer is only 2 months old.

HP Recommended

Hi @fitrich1,

Glad to hear that your issue is being resolved with a new replacement printer.

Have a nice day!

I am an HP Employee. Although I am speaking for myself and not for HP.
Click Helpful = Yes to say Thank You.
Question / Concern Answered, Click "Accept as Solution"
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