I had a HP 1220C and used it quite often. The power switch went bad and would not turn off or on normally. Frequent on and off may have been a contributing factor.
I'm now using a 895Cse.
It is better to leave it on 24 hours a day or turn it on and off multiple times a day.
And why or why not?
Leaving it on could eventually kill the power supply.......?
Off and on eventually ruins the on / off switch.......?