发明名称 |
Image processing apparatus and recording apparatus |
摘要 |
A recording apparatus of the electrophotographic system such as a laser beam printer is provided. An image processing apparatus which is connected between a recording control section and a recording mechanism section of such a recording apparatus is also provided. The apparatus comprises: an input unit for inputting image information of a density lower than a recording density of the recording mechanism section produced by the recording control section; a memory to store the image information supplied from the input unit by an amount of a plurality of main scan lines; a referring circuit to refer to the image information of a target pixel as a recording pixel and its peripheral pixels from the image information group stored in the memory; a detector to detect that the recording pixel and its peripheral pixels form a part of a predetermined half tone pattern which is constructed by a plurality of pixels as a result of the reference by the referring circuit; a converter to convert the image information of the recording pixel into the image information of a density which is at least equal to or larger than a recording density of the recording mechanism section in accordance with the result of the detection by the detector; and a transmitting circuit to transmit the image information converted by the converter to the recording mechanism section.
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申请公布号 |
US5742317(A) |
申请公布日期 |
1998.04.21 |
申请号 |
US19930012634 |
申请日期 |
1993.02.03 |
申请人 |
CANNON KABUSHIKI KAISHA |
发明人 |
KASHIHARA, ATSUSHI |
分类号 |
B41J2/44;G03G15/04;G06K15/00;H04N1/113;H04N1/23;H04N1/387;(IPC1-7):B41J2/385;G03G13/04;H04N1/21;H04N1/40 |
主分类号 |
B41J2/44 |
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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