Brother rates the MFC-J4420DW at 35ppm in mono and 27ppm in colour, although these are sheet-to-sheet speeds and don't represent real-world performance. We include the pre-processing time for each document, which in this case can be up to 20 secs, making quite a difference to print speeds on typical, five-page print jobs.
Brother MFC-J4420DW Driver Windows
|Windows, Windows 7, Windows XP, Windows Vista (32-bit)|
|Windows 8, Windows 7, Windows XP, Windows Vista (64-bit)|
Brother MFC-J4420DW Driver Mac
|Mac OS X (10.7), Mac OS X (10.6), Mac OS X (10.5)|
|Mac OS X (10.9), Mac OS X (10.8)|
Brother MFC-J4420DW Driver Linux