Greetings community, I summarize! A few days ago I did maintenance on the head of my printer since for some reason the yellow color did not go well; when removing the head I noticed that precisely the yellow injector was clogged. Following this, wash the head with alcohol and acetone by immersing it completely on a vibrating platform for 24 hours. Finally I was able to uncover the yellow injector and all the others apparently were excellent (I very proud) I installed everything, take out the remaining air from the pipes with a syringe everything apparently was optimal but at the time of printing no color comes out (before so less the red, blue and black came out) I have already done the default cleaning of the printer, head adjustment, alignment and nothing.