Are we talking wireless printer(s)? You mentioned OTHER ROOM. One of the printers has to be set as default, the other you could (can) still access from the network, assuming you set up that way, would have to know a bit more about the actual set up. As far as the scanner not working, likely a software conflict owing to the the manner in which the set up was done, again need a little more info.
Please forgive me but I wasn't sure where to put this problem so I settled on this one.
A friend had a all-in-one printer already working with her laptop. Now, she just installed the software for a printer in another room and now the scanning feature on the first printer won't work. She tried removing the new printer but that didn't help.
We would appreciate any suggestions.