Patent ID: 7283281
Filing Date: 2007-10-16
Classification: B41J,G03G,G06F,G06K,H04N

Abstract:
1. Processing circuitry for a pagewidth printhead, the processing circuitry comprising a bus; a processor connected to the bus to control operation of the processing circuitry, page data input circuitry connected to the bus to permit compressed page data to be communicated to the processing circuitry; expansion circuitry connected to the bus to expand the compressed page data; halftoning and compositing circuitry connected to the bus to halftone and composit expanded page data; printhead interface circuitry connected to the bus to permit page data to be communicated to the pagewidth printhead; and quality assurance interface circuitry connected to the bus to permit communication between the processing circuitry and a quality assurance integrated circuit device mounted on an ink cartridge that supplies ink to the printhead.