ADF issue, vertical lines on the prints

[GBowden]

I have an HP 7740 Officejet Printer

When I scan or print using the ADF I get vertical lines on the prints.

Looking to resolve the issue. Any help is appreciated

[Dragon-Fur]

@GBowden 

Welcome to the HP Community --

If the dirt is on the outside..

Use a flashlight (torch in the UK); shine the light at an angle along the glass.

Clean, clean, clean the glass panel(s)

AND

Use a tiny brush to sweep all along the edges of the glass.

Clean the white cover sections above ADF and Glass (flatbed).

Additional help, presented in order to be considered / completed:

Resolve scan quality problems on HP printers

and

Document explains how to clean the ADF

HP OfficeJet Pro 7740 Printers - 'Paper Jam' Error

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HP OfficeJet Pro 7740 Wide Format All-in-One Printer series  

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