-
公开(公告)号:US4520455A
公开(公告)日:1985-05-28
申请号:US613484
申请日:1984-05-24
CPC分类号: G06K15/10 , G06K15/128 , G06K2215/008
摘要: In a digital printer, method and apparatus for formatting printer control signals. According to the invention, characters to be printed are stored in ASCII format in the memory of a microprocessor system. Successive characters are formatted into an on/off bit mapping where a bit signal corresponds to a blank region and a bit signal corresponds to a darkened region. Eight bit slices of the characters are formatted until an entire print width is completed and stored in an 8 bit.times.N buffer where N varies with the desired printer resolution. In the preferred embodiment two buffers are used so that while the contents of one buffer are used to control the printer the second buffer can be bit formatted under microprocessor control.
摘要翻译: 在数字打印机中,用于格式化打印机控制信号的方法和装置。 根据本发明,要打印的字符以ASCII格式存储在微处理器系统的存储器中。 连续字符被格式化为开/关位映射,其中位信号对应于空白区域,位信号对应于较暗区域。 字符的八位片段被格式化,直到整个打印宽度完成并存储在8位x N缓冲区中,其中N随所需的打印机分辨率而变化。 在优选实施例中,使用两个缓冲器,使得当使用一个缓冲器的内容来控制打印机时,可以在微处理器控制下对第二缓冲器进行位格式化。
-
公开(公告)号:US4476542A
公开(公告)日:1984-10-09
申请号:US376884
申请日:1982-05-10
CPC分类号: G06K15/128 , G06K15/10 , G06K2215/008
摘要: In a digital printer, method and apparatus for formatting printer control signals. According to the invention, characters to be printed are stored in ASCII format in the memory of a microprocessor system. Successive characters are formatted into an on/off bit mapping where a bit signal corresponds to a blank region and a bit signal corresponds to a darkened region. Eight bit slices of the characters are formatted until an entire print width is completed and stored in an 8 bit.times.N buffer where N varies with the desired printer resolution. In the preferred embodiment two buffers are used so that while the contents of one buffer are used to control the printer the second buffer can be bit formatted under microprocessor control.
摘要翻译: 在数字打印机中,用于格式化打印机控制信号的方法和装置。 根据本发明,要打印的字符以ASCII格式存储在微处理器系统的存储器中。 连续字符被格式化为开/关位映射,其中位信号对应于空白区域,位信号对应于较暗区域。 字符的八位片段被格式化,直到整个打印宽度完成并存储在8位x N缓冲区中,其中N随所需的打印机分辨率而变化。 在优选实施例中,使用两个缓冲器,使得当使用一个缓冲器的内容来控制打印机时,可以在微处理器控制下对第二缓冲器进行位格式化。
-