Patent ID: 6144458
Filing Date: 2000-11-07
Classification: G06F

Abstract:
In a computer system, a method of transmitting graphical objects from the computer system to a printer, comprising:receiving a first graphical object from an application program;storing the first graphical object in a computer memory coupled to the computer system, where the computer memory is not shared with the printer;receiving a second graphical object from the application program;comparing the second graphical object to the first graphical object;transmitting the first graphical object to the printer; andtransmitting to the printer an identifier identifying the first graphical object to the printer if the second graphical object matches the first graphical object, and otherwise storing the second graphical object in the computer memory and transmitting the second graphical object to the printer; and whereineach graphical object includes one or more elements;the second graphical object matches the first graphical object; andthe identifier sent to the printer includes one or more elements of the second graphical object which override corresponding elements of the first graphical object.