Facsimile and static presentation processing – Static presentation processing – Memory
Patent
1997-11-12
2000-09-26
Au, Amelia
Facsimile and static presentation processing
Static presentation processing
Memory
B41B 1500, B41J 1500, G06F 1500
Patent
active
061249432
ABSTRACT:
Printing data is managed per band in the form of intermediate band and is output through a banding process. The bands which are estimated to undergo print overrun are subject to rendering before execution of printing out, by reserving temporary band rasters. When the temporary band rasters cannot be secured because of deficiency of the memory vacant capacity, the bands are managed in the form of compressed data by rendering and compressing the intermediate data using a normal band raster. When rendering of additional printing data is required for the compressed data, the compressed data is restored to the normal band raster, following which both the additional print data and the compressed data are subject to rendering and then compression again. If memory deadlock occurs, all the bands are compressed by selecting suitable one of plural compression types. In those processing steps, whether all the bands are to be compressed or not is determined and, based on the determination result, a process of compressing all the bands is executed so that the processing will not be disabled because of memory deficiency.
REFERENCES:
patent: 5471563 (1995-11-01), Dennis et al.
Au Amelia
Canon Kabushiki Kaisha
Cooperrider F. E.
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