Their fancy inkjets and color lasers are the same way. We have a PIXMA-100 PRO and an MF8280cw. Both will warn you that the toner/ink may be running low but neither will stop...ever. My laser has been warning me that two of the colors (both starters) are "beyond usable life" (or something like that) for over a year now but continues to print (in B&W and color) without a hitch. Given the abhorrent behavior of the other printer manufacturers, I'm not sure I'll ever buy from anyone else.
The only problem I've ever had is a little bit of difficulty with the Linux drivers. However, with Windows, Android, iOS, and OSX, though, it just works.