The error message "Print Unable 46" is an indication that the machines ink absorbers are almost full. The ink absorbers hold liquid and dried ink after it has been purged from the print head. These absorbers can control enough ink for the expected life of the machine.
There is a possibility that this message may have occurred in error. Upgrading the firmware of the Brother machine may resolve the issue. Follow the procedure below to determine if a firmware update is required:
-if the display screen is displaying an error message, press the STOP/EXIT key to change the LCD to the main screen.
-press the # and * key at the same time. The first 2 characters on the top row will determine the ROM version.
If the ROM version is OE or greater (example: OF, OG, OH, etc), the firmware does NOT need to be upgraded. If the ROM version is OA, OB, OC or OD, follow the procedure on this link to upgrade the firmware.
If the message "Print Unable 46" continues to appear on the display the Brother machine after completing the firmware upgrade and your machine is within warranty (even if it's not under warranty you have to do the same thing), you have to take it to a Brother Authorized Service Center.
http://welcome.solutions.brother.com/BSC/public/us/us/en/faq/faq/000000/002600/000059/faq002659_000.html?reg=us&c=us&lang=en&prod=dcp130c_all&Cat=11