System for storing starting addresses of a buffer RAM and differ

Details System for storing starting addresses of a buffer RAM and differ System for storing starting addresses of a buffer RAM and differ

1988-08-22

1989-09-12

Eng, David Y.

Boots, shoes, and leggings

3649304, 36494891, 364960, 3649607, 364519, 400 63, 400 70, 400121, G06F 1202, G06F 312

Patent

active

048666718

ABSTRACT:
Successive addresses of a character generator ROM, a buffer RAM and an empty area in an address space of a memory in a printer are sequentially searched upon energization of the printer. An identification code and a start address of each of a plurality of character sets stored in the character generator ROM, and start and end addresses of the buffer RAM are detected and stored for printer operation data. The character generator ROM and the buffer RAM can be expanded in the empty area.

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patent: 4575827 (1986-03-01), Kulakowski
patent: 4585360 (1986-04-01), Ueda
patent: 4615631 (1986-10-01), Ueda et al.
patent: 4617650 (1986-10-01), Morimo et al.
patent: 4629342 (1986-12-01), Fritaki
patent: 4660998 (1987-04-01), Tsuneki
patent: 4737923 (1988-04-01), Matsuzaki et al.

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