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    • 1. 发明授权
    • Printer control system including white enlarged line memory for storing
expanded white print pixel signals and black enlarged line memory for
storing expanded black print pixel signals
    • 打印机控制系统包括用于存储扩展的白色打印像素信号的白色放大行存储器和用于存储扩展的黑色打印像素信号的黑色放大行存储器
    • US5712963A
    • 1998-01-27
    • US771272
    • 1996-12-20
    • Shinya KobayashiKunio SatoYasuo Kikuchi
    • Shinya KobayashiKunio SatoYasuo Kikuchi
    • G06K15/12H04N1/04H04N1/113H04N1/12H04N1/23H04N1/387G06F15/00
    • H04N1/04G06K15/1223H04N1/1135H04N1/12H04N2201/0458
    • A printer control system for controlling a print characteristic of a printer for printing a print pixel signal synchronized to horizontal lines of an image. The print pixel signal has an arbitrary horizontal resolution and includes white print pixel signals representing white pixels of the image and black print pixel signals representing black pixels of the image. The printer control system controls the print characteristic of the printer in accordance with a type of the image and includes a white enlarged line memory for receiving the print pixel signal and storing the print pixel signal at timing points spaced a predetermined time apart after expanding any portion of any white print pixel signal in the print pixel signal falling between two adjacent ones of the timing points and having a duration less than the predetermined time to have a duration equal to the predetermined time without expanding any portion of any black print pixel signal in the print pixel signal, and a black enlarged line memory for receiving the print pixel signal and storing the print pixel signal at timing points spaced a predetermined time apart after expanding any portion of any black print pixel signal in the print pixel signal falling between two adjacent ones of the timing points and having a duration less than the predetermined time to have a duration equal to the predetermined time without expanding any portion of any white print pixel signal in the print pixel signal.
    • 一种打印机控制系统,用于控制用于打印与图像的水平线同步的打印像素信号的打印机的打印特性。 打印像素信号具有任意的水平分辨率,并且包括表示图像的白色像素的白色打印像素信号和表示图像的黑色像素的黑色打印像素信号。 打印机控制系统根据图像的类型来控制打印机的打印特性,并且包括用于接收打印像素信号的白色放大行存储器,并且在扩展任何部分之后将预定时间间隔开的定时点存储在打印像素信号 在打印像素信号中的任何白色打印像素信号落在两个相邻的定时点之间并且具有小于预定时间的持续时间以具有等于预定时间的持续时间,而不会扩展任何黑色像素信号的任何部分 打印像素信号和黑色放大线存储器,用于接收打印像素信号,并且在扩展在两个相邻像素信号之间的打印像素信号中的任何黑色打印像素信号的任何部分之后间隔了预定时间的定时点处存储打印像素信号 并且具有小于预定时间的持续时间等于该持续时间 预定时间,而不会扩展打印像素信号中的任何白色印刷像素信号的任何部分。
    • 6. 发明授权
    • Method of preventing colors from being mixed for a two-color image
forming apparatus
    • 防止双色图像形成装置的颜色混合的方法
    • US5276487A
    • 1994-01-04
    • US875221
    • 1992-04-28
    • Katsuhiro AkinagaYasuo KikuchiTomio Sugaya
    • Katsuhiro AkinagaYasuo KikuchiTomio Sugaya
    • G03G15/01G03G13/01G03G15/08G03G13/08
    • G03G13/013
    • A method of preventing colors from being mixed in a two-color image forming apparatus. The surface of a photoreceptor is uniformly charged. A first latent electrostatic image formed on the photoreceptor surface is developed with a one-component developer so as to form a first toner image. A second latent electrostatic image formed on the photoreceptor surface is developed with a two-component developer so as to form a second toner image. The first and second toner images are simultaneously transferred onto a recording medium. In a preferred embodiment, the one-component developer is a magnetic toner, while the two-component developer is the combination of a nonmagnetic toner and a magnetic carrier. The magnetic toner and the magnetic carrier are preferably powder made of substantially the same materials.
    • 防止在双色图像形成装置中混合颜色的方法。 感光体的表面均匀带电。 形成在感光体表面上的第一静电潜像用单组分显影剂显影以形成第一调色剂图像。 形成在感光体表面上的第二静电潜像用双组分显影剂显影以形成第二调色剂图像。 第一和第二调色剂图像同时转印到记录介质上。 在优选的实施方案中,单组分显影剂是磁性调色剂,而双组分显影剂是非磁性调色剂和磁性载体的组合。 磁性调色剂和磁性载体优选是由基本上相同的材料制成的粉末。