I have been trying to get my company's point of sale system moved from an old windows machine to a mac mini server. I have been successful with the exception of printing. Basically, as I understand it, the database we use sends a print command to the printer like lp -d "printer name". The problem is the HP laser printer receives it and flashes the orange light instead of printing. To get it to print we must push the green button on top of the printer to get it to print. When it prints everything is fine. I have two HP laser printers that do not have this problem and work correctly. They are Laser Jet P4015 and a M1212nf. The ones that don't work correctly are Laserjet P1505n, P2055, & P1022n. They are all network printers and work fine for regular printing like a word doc or web page. Any help is appreciated.