you can find the manual on the brother website. Humidity is important. Depending on where you live, it could have caused a problem. You can try soaking the head in the cleaning solution that comes with the yellow or black ink. just manually turn the gear next to the capping station to lower the station, move the head aside, fill the cap with solution, return the head and turn the gear to move back up to head and let sit for a day. It might help. You can order a cleaning cartridge that you put in the ink slot and pushes solution thru the head. Might help. You may have to replace the head. ouch! If i can be more help, let me know. Sorry for the trouble you are having. We've been there.