If lines are forming, it is possible that you may need to purge the magenta cartridge. I will note that the i560 is a long time out of production and if this is the first time you are refilling it, then that is perhaps the problem. Refilling dried out cartriidges or cartridges that have been open and in storage can sometimes be troublesome. Canon recommends that once a cartridge seal is opened, that it be used within six months.