Typewriting machines – Including control of format and selection of type-face by... – Separate interrelated programs
Patent
1992-01-29
1994-11-01
Wiecking, David A.
Typewriting machines
Including control of format and selection of type-face by...
Separate interrelated programs
400 63, B41J 530
Patent
active
053602773
ABSTRACT:
A dot printer receives coded printing information, and expands it into dots in an image memory. When expanding the information into dots, the printing contents of the previous printed document and the new printing document are compared as to their coded information. Only the changed portions therebetween are rewritten in the image memory. As a result, the printing efficiency with respect to multiple documents of the same type in which only small portions thereof change is improved.
REFERENCES:
patent: 4677551 (1987-06-01), Suganuma
patent: 4826333 (1989-05-01), Tanaka
patent: 4944614 (1990-07-01), Tanaka
patent: 4988221 (1991-01-01), Shibayama
patent: 5104245 (1992-04-01), Oguri
patent: 5156468 (1992-10-01), Uematsu
Bessho Kazuya
Fujii Ken-ichi
Matsubara Motoki
Kelley Steven S.
New Oji Paper Co. Ltd.
Wiecking David A.
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