Patent ID: 6738162
Filing Date: 2004-05-18
Classification: B41J,H04N

Abstract:
A semi-digital printer, comprising:a print head assembly including at least one print head for ejecting one of ink or toner, said print head being digitally controlled and having a limited number of pixel output options; a turntable having a surface facing said print head assembly, said surface being adapted for holding a sheet of paper; means for rotating said turntable to at least one predetermined angle relative to said print head assembly, so that said at least one print head ejects ink or toner onto said sheet of paper at said at least one predetermined angle, wherein at least one of said at least one predetermined angles is neither zero degrees nor a multiple of ninety degrees; and means for halftoning using said limited number of pixel output options, wherein said means for halftoning uses a dithering mask that is the same for any of said at least one predetermined angles.