Patent EP0481518A2 successfully refreshed from Google Patents.
EP0481518A2
Expired / Lapsed
EP
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Printer provided with power font memory card
Assignee: Oki Electric Industry Co Ltd
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Filing: 1991-10-18
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Granted: —
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Expires: 2011-10-18
Abstract
Abstract A printer provided with a font memory card having an outline font ROM for storing data representing outlines of characters and control parameters and a bit map font memory card detachably connected to the printer by way of a connector. This printer generates print bit map font data corresponding to print fonts which is instructed by a host unit such as a personal computer and the thus generated bit map font data are stored in the bit map font memory card in the order of priority of frequent use thereof. <IMAGE>
Inventors
- 👤 Masato c/o Oki Electric Ind. Co. Ltd. Nagata
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 12:27
CPC Classifications
G; G06; G06K; G06K15/00; G06K15/02; G06K2215/00; G06K2215/0002; G06K2215/002; G06K2215/0022; G06K2215/0025; G06K2215/0028; G06K2215/0034
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
129 words
A printer provided with a font memory card comprising: an outline font ROM storing therein data representing outlines of printing characters and control parameter for generating outline font data; a font memory card detachably connected to the printer; a bit map font data generating means for generating bit map font data for printing based on the data stored in the outline font ROM; a bit map font data storage means for storing the thus generated bit map font data in the font memory card; a means for storing the frequency of use of the fonts of font types and character sizes; and a means for storing the thus generated bit map font data in the font memory card in the order of priority of the frequency of use thereof.
Claim 2
Dependent Claim
118 words
A printer provided with font memory card according to Claim 1 further comprising: a first decision means for deciding as to whether a font designated by an upper unit is previously stored in a font cache memory of the printer; a second decision means for deciding as to whether a font designated by an upper unit has been already stored in the font memory card; characterized in that the bit map font data designated by the upper unit is written in an image memory when the first decision means decides that the designated font is stored in the font cache memory or the second decision means decides that the designated font is stored in the font memory card.
Claim 3
Dependent Claim
152 words
A printer provided with font memory card according to Claim 1 further comprising: a first decision means for deciding as to whether a font designated by an upper unit has been already stored in a font cache memory of the printer; a second decision means for deciding as to whether a font designated by an upper unit is previously stored in the font memory card; characterized in that the bit map font data having the least frequency of use among those stored in the font memory card is erased to reserve a free memory area and a new generated bit map font data is stored in the free memory area reserved in the font memory card when the first decision means decides that the designated font is not stored in the font cache memory and the second decision means decides that the designated font is not stored in the font memory card.
Claim 4
Dependent Claim
28 words
A printer provided with font data memory card according to Claim 1, wherein the font data memory card detachably connected to the printer is a non-volatile memory card.
Claim 5
Dependent Claim
93 words
A printer provided with font data memory card according to Claim 1, wherein the font data memory card detachably connected to the printer is characterized in comprising: a font attribute address table for storing therein and managing a frequency of use data corresponding to font types and character sizes, a starting address of a character attribute table and an ending address of the character attribute table; and the character attribute table representing storage addresses of bit map fonts corresponding to character codes of fonts designated by combinations of font types and character codes.
References Cited (Backward Citations)
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