发明名称 |
SYSTEM FOR CONTROLLING PRINTERS HAVING DIFFERING DOT DENSITIES |
摘要 |
A font converting device converts (dot density conversion) a down-line load font received through an interface device into a font represented by a dot matrix of the same size as that of a resident font stored in first memory and stores the converted down-line load font in a second memory. A control circuit selectively reads the fonts of the first memory (resident font) or the fonts of the second memory (converted down-line load font) in conformity to a font code included in print data, edits dot image data, and then provides the same to a printing unit to be controlled, namely, a printer in a narrow sense. Only the rarely used down-line load font is subjected to dot density conversion so that the print dot density of the converted down-line load font coincides with that of the print dot density of the printer to be controlled, while a frequently used font of a print dot density coinciding with that of the printer is stored as resident font. Thus, a plurality of printers differing from each other in print dot density can be connected to the host unit of a system in the same interface conditions without entailing the variation of character pattern and the size of print area.
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申请公布号 |
US5093903(A) |
申请公布日期 |
1992.03.03 |
申请号 |
US19880158237 |
申请日期 |
1988.02.19 |
申请人 |
OKI ELECTRIC INDUSTRY CO., LTD. |
发明人 |
SUDOH, EISHO;ASANO, SEIJI |
分类号 |
B41J2/485;B41J5/44;G06F3/12;G06F17/21;G06K15/00;G06K15/02 |
主分类号 |
B41J2/485 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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