发明名称 |
Resolution heightening circuit for heightening resolution of electrophotographic printer |
摘要 |
A resolution heightening circuit comprises a modulation information generating circuit that receives printing data supplied from a host printer control circuit to generate a pulse width modulation information signal on the basis of the printing data. The modulation information generating circuit uses a reference template of four lines by three dots to increase the number of dots for a line at a printing unit. A modulation circuit is connected to the modulation information generating circuit and the printing unit and produces modulated driving pulses in response to the pulse width modulation information signal to supply the modulated driving pulses to the printing unit.
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申请公布号 |
US6707575(B1) |
申请公布日期 |
2004.03.16 |
申请号 |
US19990435636 |
申请日期 |
1999.11.08 |
申请人 |
NIPPON ELECTRIC CO |
发明人 |
AKIYAMA MINORU |
分类号 |
H04N1/387;B41J2/44;G06K15/12;(IPC1-7):G06R15/00 |
主分类号 |
H04N1/387 |
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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