Bulk email

Why not? Shouldnt I be able to print a document by photocopying an empty paper by placing it in front of a computer screen?
I know it isnt possible to take a picture through a computer screen! But what I am asking is WHY NOT? Isnt a photocopier able to color copy a document and a printer able to print a document in color and we have printer-scanner-fax-copier all in one devices? So why not photocopy a document in color from paper to computer screen and beam it to another computer screen just by knowing its IP address (something like INTERNET but works through satellite over the air without needing physical cable connections)