Image recording apparatus for providing high quality image

Details Image recording apparatus for providing high quality image Image recording apparatus for providing high quality image

1991-11-25

1994-02-22

Evans, Arthur G.

395101, G06F 1500

Patent

active

052895645

ABSTRACT:
An image recording apparatus which is capable of recording an image by forming a dot for each pixel includes an interface (14) for receiving dot data having 300 dpi dot density, converting unit (15, 16, 17, 18) connected to the interface for converting the received data into dot data having 600 dpi dot density by replacing a dot of a focus pixel with a plurality of dots having patterns corresponding to dot patterns of areas containing the focus pixel, and a base engine unit (13) connected to the converting unit for forming an image in accordance with the converted dot data.

REFERENCES:
patent: 3921164 (1975-11-01), Anderson
patent: 4129860 (1978-12-01), Yonezana et al.
patent: 4356555 (1982-10-01), Ejiri et al.
patent: 4437122 (1984-03-01), Walsh et al.
patent: 4544922 (1985-10-01), Watanabe
patent: 4847641 (1989-07-01), Tung
patent: 4992958 (1991-02-01), Kageyama
patent: 5005139 (1991-04-01), Tung
European Search Report in Corresponding European Patent Application issued by European Patent Office on Feb. 3, 1993.

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