OSX loses connection to network printer after going to sleep
I recently bought a network Brother color laser printer/scanner and I am having issues with my Macbook and my MacMini keeping the connection with the printer.
When the printer is switched on, OSX detects the printer (via bonjour) and scanning/printing works fine. However when a Mac goes to sleep and wakes up again, I can no longer print. The printer is suddenly invisible for bonjour (checked via Safari bookmarks). I can still connect to the printer via its IP address, but no longer print. Powering off and on the printer solves the issue. The printer becomes again visible for bonjour and I can print
Adding the printer via its IP address (iso bonjour) solves the issue partially. It always prints, but the scan functionality is not detected when adding the printer
The issue is OSX only: my 2 windows PCs and my Linux PC can print/scan without any issues
Mac mini (Late 2012), OS X Yosemite (10.10.5)