Device sharing system using PCL macros

摘要: Disclosed is a switch that allows peripheral device (106), such as PCL printer, to be shared by multiple computer systems (102, 108). The (116) connects each of the 108), and also (106) being shared. first system (102) considered primary user so when second (108) requests access causes save its state temporarily while uses device. When system's use complete, restore last established system. Therefore, need not know other used since appears unchanged from time