be careful with hairspray on paper .. your rollers can get messed up quick in your laser printer..
if you want your parchment paper to roll in the laser tape leading edge to regular paper so it pulls the parchment with it..
i set it to be 120 psi. i use lindsay at 30psi, so it plenty.. these compressors can go even higher, but have to make sure you have the correct safety valves and tank that can handle it.