How to get rid of extra vertical lines on a hp 6978 printed page

[Ngil]

When using the auto feed function when I print or scan the printings come out with extra vertical lines. Is there a way to correct this issue. If something needs cleaning what part and how to access and complete the cleaning?

[Riddle_Decipher]

@Ngil Greetings from the HP Community!

Step 1: Confirm the issue is not printing-related

The steps in this document resolve quality issues when scanning only.

If quality issues occur when printing from the computer, do not continue with these steps. Go to HP Customer Support - Fixing Poor Print Quality document for steps to resolve the issue, If quality issues occur when scanning, continue to the next step.

Step 2: Clean the scanner

Fingerprints, smudges, dust, or debris on the scanner glass, under the scanner lid, or in the document feed slot can cause lines and color bands. Clean these parts with a soft, lint-free cloth sprayed with glass cleaner.

FOR DETAILS & FURTHER INSTRUCTIONS, USE THIS LINK: CLICK HERE & SKIP TO STEP 2 ONWARD

(By the end of this article all the issues should be resolved)

Let me know how that pans out,

If you feel I was helpful, simply click on Accept as Solution to help the community grow,

That said, I will have someone follow-up on this to ensure you've been helped,

Just in case you don't get back to us within 24 - 48hrs, and have a good day, ahead.

[Ngil]

I tried cleaning the rollers I could get to and cleaned all of the glass but the lines remain.

[Riddle_Decipher]

@Ngil If you've followed all the steps suggested in the link I shared earlier and yet the issue persists, this seems to be a hardware malfunction and I suggest you talk to HP support and discuss your options, follow the below steps to get started:

1) Click on this link - http://www.hp.com/contacthp/

2) Click on Sign-in or select the product using the below step:

3) Enter the serial of your device.

4) Select the country from the drop-down.

5) Click on "Show Options".

Fill the web-form, to populate a case number and phone number for yourself!

Also, if you are having trouble navigating through the above options, it's most likely because the device is out of warranty, if yes? please send me a private message with the region you are contacting us from, 

here's how private messages work: Click here for details.

If you wish to thank me for my efforts, you could click on "Accept as solution" on my post as the solution should help others too.