Image printing apparatus and method having changeable capacity s

Details Image printing apparatus and method having changeable capacity s Image printing apparatus and method having changeable capacity s

1996-07-10

1999-05-18

Tung, Kee M.

Computer graphics processing and selective visual display system

Display driving control circuitry

Controlling the condition of display elements

345507, G06F15/72

Patent

active

059058536

ABSTRACT:
Efficiency of memory usage is improved by increasing/decreasing the number of bit map areas in accordance with an amount of image data and thereby an image is formed at high speed. When next printing data is received during the printing of data of a page, whether or not an empty bit map area exists is judged. If not, whether or not there is enough area in a RAM to assign a new bit map area is checked. If it exists, that area is assigned as a new bit map area and the image data is rendered there. On the other hand, if a plurality of empty bit map areas exist, only one bit map area is kept and the other areas are released.

REFERENCES:
patent: 5029109 (1991-07-01), Ikenoue et al.
patent: 5159681 (1992-10-01), Beck et al.

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