发明名称 |
Color printing apparatus |
摘要 |
<p>A color printing apparatus includes a printer driver (104) for receiving a print instruction of print data issued from an application program, and for rasterizing the print data to produce con-tone/multi-bits bitmap data and bi-tone/single-bit bitmap data; a page memory (109) for independently storing thereinto both the con-tone/multi-bits bitmap data and the bi-tone/single-bit bitmap data; a control unit (108) for executing a control operation in such a manner that the con-tone/multi-bits bitmap data is converted into con-tone/multi-bits print data, the bi-tone/single-bit bitmap data is converted into bi-tone/single-bit print data, and at least one of the con-tone/multi-bits print data and the bi-tone/single-bit print data is stored into the page memory in a bitmap format; and an output control unit (110) for reading at least any one of the con-tone/multi-bits print data and the bi-tone/single-bit print data from the page memory, and for logically synthesizing the print data with each other to output the synthesized print data to a color printing unit, reducing the data amount of the bitmap data. <IMAGE></p> |
申请公布号 |
EP1107173(A2) |
申请公布日期 |
2001.06.13 |
申请号 |
EP20000118151 |
申请日期 |
2000.08.29 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
YAMADA, TOSHIYUKI;ABIRU, HIROYUKI;KOFUJI, SHIRO;URATA, NAOYUKI;TAMURA, HITOSHI |
分类号 |
B41J5/30;B41J2/525;G06K15/00;G06T1/00;H04N1/29;H04N1/46;(IPC1-7):G06K15/00;G06K15/02 |
主分类号 |
B41J5/30 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|