It started with a grating noise followed by an error message "Print unable 34". After making sure there's no paper jammed, I restarted and got "Paper Jam" error. I got irritated and actually jammed the feeder (figured it was the error anyway). The I got "Print unable 36".
I followed the disassembling process outlined, and I was able to fix the problem. Thanks a lot!
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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=mfc290c_all&Cat=11
Yup. I suspect the head has been removed from the unit. There are adjustments on some printers. It was assembled wrong. The grating noise is likely the auto cleaner. If it cannot go 'home' the unit will not initialize. Possibly the head detect sensor is broken or covered. If the head will not home (moves out and back more than once or slams home hard), 'Init Unable AF'. You may be able to order a service manual from Brother for this. A repair shop can order the manual as well. (I suspect you need a new print head as well. You might want to replace the printer) see tips on bubblejet printers.
That error is a carriage travel error, the printhead is not moving freely. Most often paper scraps either on the extreme right side where the printhead parks, or on the extreme left side where it's hard to see.