If your printer is far away from your Mac and you’re curious about its supply levels, you don’t actually have to get up and walk over to it to check things out. I mean, you CAN if you want (or if you need the exercise like I do), but if you’d prefer, you can look at that info from your Mac instead. To do so, start by clicking on the Apple Menu at the upper-left corner of your screen and choosing “System Preferences.”
Once System Preferences launches, click on “Printers & Scanners.”
If you select one of your printers from the left-hand list, you can then click the “Options & Supplies” button.
Read more at The Mac Observer