Patent ID: 6636325
Filing Date: 2003-10-21
Classification: G06F,G06K

Abstract:
A printer system, comprising:a printer controller and a printer connected by a bus, wherein said printer controller supplies said printer with image data via the bus and said printer prints an image at a constant speed, wherein said image is represented by the image data supplied from said printer controller, said printer including a buffer memory possessing a fixed-size image-data storage capacity smaller than a quantity of image data representing one frame of the image, said buffer memory temporarily storing the image data supplied from said printer controller, and said printer having an output device outputting an image-data transfer request, said printer controller including an image-data transmission controller for transmitting the image data to said printer in image-data packet units in response to the image-data transfer request, said printer including a storage controller for receiving the image data packet units transmitted from said printer controller and storing the image data packet units in said buffer memory; and said printing controller reading out the image data packet units stored in said buffer memory and for printing the image, wherein said image-data transmission controller selectively changes an amount of image data included in each of the image data packet units in accordance with said constant speed of said printer and said fixed-size image-data storage capacity of said buffer memory, said image-data transmission controller transmitting the image data to the printer so that the image data stored in said buffer memory is not emptied from said buffer memory.