Output apparatus with detachable character storing cartridge

Details Output apparatus with detachable character storing cartridge Output apparatus with detachable character storing cartridge

1995-01-11

1996-10-22

Burr, Edgar S.

Typewriting machines

Including control of format and selection of type-face by...

400 76, 400692, 395150, B41J 500

Patent

active

055670610

ABSTRACT:
An output apparatus to which a plurality of detachable character pattern generators (font cartridges) can be attached comprises: a first character generator which is provided in the output apparatus main body and includes character pattern information constructed by a storing method other than an unprocessed dot matrix; a second character generator which is detachable from the output apparatus main body and includes character pattern information constructed by a storing method other than the unprocessed dot matrix; a socket to attach the second character generator to the apparatus main body; a discriminating circuit to decide whether the second character generator has keen attached to the socket or not; a controller for preferentially converting the characters included in the second character generator into the character patterns in the unprocessed dot matrix form that the characters included in the first character generator when the second character generator has been set to the socket and for storing the converted character patterns. When the font cartridge is set into the socket, the font of the font cartridge is developed into the font cache memory and if not, the font provided in the apparatus is developed into the font cache memory. Thus, the memory can be effectively used and the output throughput of the apparatus is improved.

REFERENCES:
patent: 4470042 (1984-09-01), Barnich
patent: 4627002 (1986-12-01), Blum et al.
patent: 4633243 (1986-12-01), Bresenham
patent: 4686525 (1987-08-01), Nagata
patent: 4763281 (1988-08-01), Arakawa
patent: 4785391 (1988-11-01), Apley
patent: 4837712 (1989-06-01), Shibamiya
patent: 4872091 (1989-10-01), Maniwa

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