Case # 4681721344
HP tech: Clint.
Error message: The impression drum temperature did not reach the desired temperature, please try again... Check and adjust the impression drum IR sensor"
You can see the impression drum IR sensor; the large coil/threaded thing that you see when you remove the air knife hose, but to clean it, you open the side bottom door, open the duplex conveyer, to the left, clean the impression drum shoulder and gear area, clean the IR sensor.