RESOLVED! M277dw printing line through ADF only

[RNey]

I've had my laserjet for 2 years now. I use it to copy and print homeschool materials, so I use the ADF almost exclusiely. It's been awesome until about two weeks ago, it started to print a verticle line down the page when pringing through ADF only (tested the flat bed, no line). I cleaned the whole printer (which I keep covered with a fitted fabric cover when not in use), taking special care of the rollers and the glass window. I tried playing with the scan setting (contrast, lightness, etc), which lighted the line for a few copies, but it came back. ?????

I can ever so possibly - maybe - see a "scratch" or small line on the glass window in the spot where the line appears on the copied page, but I also see other possible "scratches" in other areas of the glass which do no produce lines on the page.

Of course, my product is no longer under warranty and paying to have it looked at is not an option. Is there a way I can remove the glass window myself to try and blow or vacuum any dust out from under the glass?

[john_domnic]

 Hi,

I understand you have copy quality issue when copying from ADF. plese follow the below link hope this resolves.

https://support.hp.com/us-en/product/hp-color-laserjet-pro-mfp-m277-series/7089945/model/7089949/doc...

Although I am an HP employee, I am speaking for myself and not for HP.

--Say "Thanks" by clicking the Kudos Star in the post that helped you.

--Please mark the post that solves your problem as "Accepted Solution

John Domnic

[MigHty_Prime]

Hi RNey,

Will you see this when doing flatbed scanning?

Best Regards,

MigHty Prime

[jabeen1]

Hello RNey,

Welcome to HP Forum.

Thank you for posting your query. I'll be more than glad to help you.

I suggest you not to remove the glass yourself. The troubleshooting steps you can try doing from your end are:

1. Cleaning the 2 glass strips (mylar strips) with a damp cloth.

2. Cleaning the rollers with a damp cloth.

You can open Paint from your Computer and try scanning.

Start >>> Paint >> From Scanner or Camera >> Click on scan (check scanning from ADF)

If there is no issue Scanning from Paint then the Issue is in the software and not the Scanner hardware.

If you face the same issue scanning from Paint Please call the HP Customer Support on 1800112267 and register a complain.

Although I am an HP employee, I am speaking for myself and not for HP.
Say "Thanks" by clicking the Kudos Star in the post that helped you.
Please mark the post that solves your problem as "Accepted Solution"

#Expertday

[muj851]

Hi,

Thank you for visiting HP Forum,

You may want to refer the HP support video on how to clean the ADF glass section.

This video may not be for same model however the cleaning steps remain the same "Click Here"

Hope this helps

[RNey]

No, I don't see it when flatbed scanning, ONLY the auto-feed.

[RNey · Accepted solution]

A different thread on this website solved the problem. One member suggested I try buffing the glass of the ADF very gently with Brasso. Voila, it totally did the trick! No more line.

[cbrigham]

What's the name of the other thread? I have the same problem but have multiple vertical lines. Can the Brasso recommendation apply to the whole glass? Is this really the ONLY solution? HP has no other suggestions/options??