Dropbox private Shared Folder
Here is how you will do it 


Create two different folders ( Printer &amp; Pictures) on your System/mobile sync with Drop box.
Go to Drop Box> Sign in>  Check the folders ( Printer &amp; Pictures)  you just synced from desktop/mobile
Click on share link for printer folder to share it to only "printer folder"  put email of the required person and hurray !! 


let me know if you get stuck.