WHAT DOES SIGNS OF BAD PROJECTOR LAMP EPSON MEAN?

I see the calibration on this is just as messy given that the JVC NP5 Evaluate. It would be an idea to revisit this design and have a professional calibrator that doesn't elevate black/minimizes contrast whilst calibrating.Some present day projector producers also set a developed-in projector lamp life counter that allows the tip-person to find out