Page printer having automatic font compression

Details Page printer having automatic font compression Page printer having automatic font compression

1992-09-03

1996-01-09

Bayerl, Raymond J.

395110, 395115, 395116, G06K 1500

Patent

active

054836220

ABSTRACT:
A page printer includes random access memory (RAM) whose capacity is insufficient to store certain page configurations; a processor; and a control memory that holds at least one data compression procedure. The page printer performs a font compression method that comprises the steps of: issuing a memory low/out signal when insufficient RAM is available to store portions of an input data stream; if raster graphics images are present in portions of the input data stream, attempting to compress those images to remove the memory low/out signal; if no raster graphics images are present in the input data stream, compressing font characters by use of a data compression procedure; and if the attempted compression of the raster graphics images is unsuccessful in removing the memory low/out signal, compressing font characters by use of a data compression procedure. The page printer also may be controlled to automatically data compress a large size font whose size exceeds a second threshold (which may be related to available printer RAM), under circumstances where a memory low/out signal is not present.

REFERENCES:
patent: 4555802 (1985-11-01), Fedak et al.
patent: 4741635 (1988-05-01), Shibata et al.
patent: 4881180 (1989-11-01), Nishiyama
patent: 4884147 (1989-11-01), Arimoto et al.
patent: 5068805 (1991-11-01), Tsuzuki
patent: 5150454 (1992-09-01), Wood et al.
patent: 5208676 (1993-05-01), Inui
patent: 5331427 (1994-07-01), Namizuka
patent: 5367620 (1994-11-01), Ito et al.

Affiliated with

Also associated with

Rating

Page printer having automatic font compression does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Page printer having automatic font compression, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Page printer having automatic font compression will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1308683