Image recording apparatus using optical beam
    33.
    发明授权
    Image recording apparatus using optical beam 失效
    使用光束的图像记录装置

    公开(公告)号:US5463410A

    公开(公告)日:1995-10-31

    申请号:US252625

    申请日:1994-06-01

    IPC分类号: B41J2/47 G03G15/16 G01D9/42

    摘要: In a laser beam printer, automatic optical quantity (APC) control is performed based on an optical quantity detection output to generate a laser beam having a predetermined quantity of light. In each scanning cycle, APC is effected by utilizing a period (unblanking period) in which the laser device is forcibly actuated to generate a horizontal synchronization signal. The unblanking period may be changed according to the print paper size or image formation/non-image-formation periods. Also, light quantity control may be effected through a plurality of scanning cycles before image formation and may be effected by utilizing the unblanking period during the period corresponding to the intervals of print sheets. Techniques also provided to prevent a transfer unit from being contaminated by toner images formed as a byproduct of APC.

    摘要翻译: 在激光束打印机中,基于光量检测输出执行自动光量(APC)控制,以产生具有预定量的光的激光束。 在每个扫描周期中,APC通过利用激光装置被强制致动以产生水平同步信号的周期(非白平衡周期)来实现。 可以根据打印纸尺寸或图像形成/非图像形成期间来改变非曝光时段。 此外,光量控制可以在图像形成之前通过多个扫描周期进行,并且可以通过在对应于打印片材的间隔的期间利用非曝光时段来实现。 还提供了防止转印单元被作为APC副产物形成的调色剂图像污染的技术。

    Record material
    35.
    发明授权
    Record material 失效
    记录材料

    公开(公告)号:US4580153A

    公开(公告)日:1986-04-01

    申请号:US633980

    申请日:1984-07-24

    摘要: A record material utilizing the color forming reaction between a substantially colorless chromogenic material and an electron accepting reactant material is disclosed. The colorless chromogenic material used comprises a mixture of the first component consisting of at least one specified phthalide compound having two vinyl linkages and the second component of another kind of chromogenic material which is different from said first component. The first component of the chromogenic material is used in an amount of 5 to 80%, preferably 7 to 50%, by weight with respect to the amount of the second component and in such an amount that the reflectance at any wavelength within the range of 580 nm to 880 nm, preferably within the range of 500 to 880 nm of color images developed by said color forming reaction is less by at least 55% than that of said record material before color developing.

    摘要翻译: 公开了一种利用基本上无色的显色材料和电子接受反应物材料之间的成色反应的记录材料。 使用的无色发色材料包括由至少一种具有两个乙烯基键的特定的苯酞化合物组成的第一组分和与所述第一组分不同的另一种显色材料的第二组分的混合物。 相对于第二成分的量,发色材料的第一成分的使用量为5〜80重量%,优选为7〜50重量%,并且以任何波长的反射率在 通过所述成色反应形成的彩色图像的580nm至880nm,优选在500至880nm的范围内,比彩色显影之前的所述记录材料少至少55%。