Just a few short months ago I began having issues with my blacks not printing. After three tech visits, a new maintenance station, print head and solenoid, the baby started humming again and printing like new. Now the same darn issue is happening again, and I am ready to scream. I clean, soak the print head, check the nozzles, and everything prints great except for the first black section, which is patchy as heck. Do I need a new black damper? Is there something I'm missing? I am at a total loss here.