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    • 4. 发明授权
    • Printing apparatus printer driver, and buffer management method
    • 打印机打印机驱动程序,以及缓冲管理方法
    • US07405839B2
    • 2008-07-29
    • US10413374
    • 2003-04-15
    • Jiro MoriyamaHidehiko Kanda
    • Jiro MoriyamaHidehiko Kanda
    • G06F15/00G06K1/00
    • G06K15/10G06K15/1817
    • In a printing apparatus which performs printing by scanning a printhead having printing elements arrayed in a predetermined direction on a printing medium in a direction crossing to the array direction on the basis of information transmitted from a host apparatus, stores print data transmitted from the host apparatus, and has a buffer smaller in capacity than a print data amount printed on the printing medium by one scanning of the printhead, the buffer is divided into a plurality of blocks corresponding to rectangular regions printed by scanning. The use order of the blocks is so managed as to circularly store print data in the blocks along with the progress of printing. When print data representing non-driving of the printing elements successively exist in a predetermined amount, the predetermined amount of print data is represented by specific control data without storing the predetermined amount of print data in the blocks. High-speed, high-quality printing can be achieved with a low-cost arrangement having a memory smaller in capacity than a data amount printed by one main scanning.
    • 在打印装置中,根据从主机装置发送的信息,通过扫描具有沿着与阵列方向交叉的方向在打印介质上沿预定方向排列的打印元件的打印头,存储从主机设备发送的打印数据 并且通过打印头的一次扫描具有比打印在打印介质上的打印数据量更小的缓冲器,缓冲器被分成与通过扫描打印的矩形区域相对应的多个块。 块的使用顺序被如此管理,以便随着打印的进行将打印数据循环地存储在块中。 当表示非驱动打印元件的打印数据以预定量连续存在时,预定量的打印数据由特定控制数据表示,而不将预定量的打印数据存储在块中。 可以通过具有比通过一个主扫描打印的数据量小的容量的存储器的低成本布置来实现高速,高质量的打印。