Hot based printing system with raster image data buffering

Details Hot based printing system with raster image data buffering Hot based printing system with raster image data buffering

1997-09-15

1998-06-09

Evans, Arthur G.

395114, G06K 1500

Patent

active

057648697

ABSTRACT:
The preferred embodiment of the present invention provides a method for a host computer to improve control over the printer memory buffering in conjunction with commencing print engine motion. By requiring both data present in the printer and a "begin engine motion" notification from the host computer, print engine commencement is controlled completely by the host computer. To help the host better control the buffer, the host establishes a "memory full" threshold limit. This threshold is then transferred to the printer and is used by the printer to determine when to return a "threshold exceeded" notification to the host. After the data has moved from the printer memory buffer and onto the printed page, memory is again considered free. Once the unused portion of printer memory is larger than the memory full threshold value, the threshold exceeded status is reset.

REFERENCES:
patent: 4975859 (1990-12-01), Takayishi et al.

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