Why Doesnt Hp Eprint/ Hp smart support Duplex printing?

[Yo8]

Does HP love wasting Paper?

Why hasn't there been an app update to enable duplex printing?

For documents involving small amount number of pages, one can still print duplex manually. But what about large amount of pages?

Are you simply not interested in improving your product quality?

P.S

Here I'm not referring to duplex printing as printing on both sides simultaneously.

I know that my printer prints only one side of the page at a time.

By duplex printing, I mean that the app/printer automatically printing all the even pages first, then the user flipping the stack of pages, and then the app/printer prints all the odd pages.

What I mean by 'manual' duplex printing is when the user stands by the printer, and flips each page continuously, instead of the whole stack at once.

One may not realize it, but while printing large amount of pages, even the odd-even segregation can be very useful. 

Hp ePrint doesn't even do this segregation.

[B_Will]

Duplex printing requires a physical device to turn the paper over, HP calls it a duplexer.

If your printer has one there would be door to open and see the duplexer so you can clear paper jams.