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Thin black lines on ADF scan next step?

HP Recommended
Color Laser Jet Pro MFP M479fdw
Microsoft Windows 10 (32-bit)


I have two vertical streaks from the ADF only. Settings: Output is Gray and Resolution is 300 dpi. Followed previous recommendations in this community for cleaning the glass many times. Watched the recommended youtube video. There is no visible debris. Mylar film is in tact. Printer is under warranty. Thanks for your suggestions.

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HP Recommended

Hello @DGB1126 ,
Welcome to the HP Support Community!


Make this setting in the HP Scan app:

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Hope this helps! Keep me posted.

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