Why is my HP DeskJet Plus 4100 Series printer not printing?

How do I scan a document with my HP Deskjet scanner?

https://www.youtube.com/watch?v=fBV5OeNGiCU

What is the Scan button on HP Deskjet?

Select scan option on your printer's control panel. An individual can save your preferences for scanning the document and the path where you need to save the document. Hit the scan option to scan the document. You can also occur PC or laptop in diagnosing your documents as you please.

How do I get my HP DeskJet 4155 to scan?

https://www.youtube.com/watch?v=1WHOmCL7bac