Controller which generates data suitable for inkjet printhead

Abstract

A print controller for an inkjet printhead is provided. The print controller has contone decompression circuitry for decompressing a contone layer of compressed page data, bi-level decompression circuitry for decompressing a bi-level layer of the compressed page data, halftoner and compositor circuitry for halftoning the decompressed contone planes to associated bi-level versions and compositing the decompressed bi-level layer over the halftoned contone layers, and printhead interface circuitry for receiving the halftoned and composited data so as to generate print data suitable for printing by the printhead.

Dependencies are inferred from the claim text.