发明授权
US06262759B1 Method and apparatus for forming an image using signals synchronized with scanning
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使用与扫描同步的信号形成图像的方法和装置
- 专利标题： Method and apparatus for forming an image using signals synchronized with scanning
- 专利标题（中）： 使用与扫描同步的信号形成图像的方法和装置
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申请号： US09025745申请日： 1998-02-18
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公开(公告)号： US06262759B1公开(公告)日： 2001-07-17
- 发明人: Satoshi Akiyama , Kenjiro Hori , Yoshimi Kuramochi , Akihiro Shibata , Tetsuo Kishida , Koichi Suzuki
- 申请人： Satoshi Akiyama , Kenjiro Hori , Yoshimi Kuramochi , Akihiro Shibata , Tetsuo Kishida , Koichi Suzuki
- 优先权： JP9-033832 19970218
- 主分类号： B41J2435
- IPC分类号： B41J2435
摘要：
A method and apparatus for forming an image reduce the processing load on a video controller. A CPU causes a counter to start counting the optical beam detection signals of a photodiode in accordance with a signal which indicates the leading edge of a sheet of recording paper received from a TOP sensor. Comparators compare the count value issued from the counter with the values set by the CPU at registers. Based on the comparison result, an F/F sets Q output. Thus, a BD signal is issued through a gate during a period specified by the values set at the registers. The use of the BD signal reduces the processing load on the video controller which generates and transfers an image signal.