Liquid ejecting head, suction recovering method, head cartridge and image forming apparatus
    53.
    发明公开
    Liquid ejecting head, suction recovering method, head cartridge and image forming apparatus 有权
    液体喷射头,抽吸回收方法,头盒和图像形成装置

    公开(公告)号:EP1228876A3

    公开(公告)日:2002-08-14

    申请号:EP02002255.4

    申请日:2002-01-30

    IPC分类号: B41J2/14 B41J2/165

    摘要: A liquid ejection head (13) according to the present invention comprises a single liquid supplying port (18) to which a liquid is supplied, a plurality of liquid supplying passages (17a and 17b) having one end in communication with the liquid supplying port (18), a plurality of common liquid chambers (16a and 16b) that are in communication with the other ends of the liquid supplying passages (17a and 17b), respectively, and a plurality of ejection port groups which are in communication with the common liquid chambers (16a and 16b) via liquid channels and from which liquid droplets are ejected. A cross sectional area or length of the liquid supplying passage (17a) in communication with the ejection port group having a larger sum of opening areas of the ejection ports is set smaller or longer respectively than that of the liquid supplying passage (17b) that is in communication with the ejection port group having a smaller sum of opening areas of the ejection ports.

    摘要翻译: 根据本发明的液体喷射头(13)包括供应液体的单个液体供应口(18),多个液体供应通道(17a和17b),其一端与液体供应口连通( 18);分别与所述液体供应通道(17a和17b)的另一端连通的多个公共液体腔室(16a和16b);以及多个喷射口组,所述多个喷射口组与所述公共液体 腔室(16a和16b)通过液体通道并从其中喷射液滴。 与喷射口的开口面积总和较大的喷射口组连通的液体供给通道(17a)的横截面面积或长度分别设置为小于或者大于液体供给通道(17b)的横截面面积或长度, 与排出口的开口面积总和较小的排出口组进行通信。

    Liquid ejecting head, suction recovering method, head cartridge and image forming apparatus
    54.
    发明公开
    Liquid ejecting head, suction recovering method, head cartridge and image forming apparatus 有权
    Flüssigkeitsausstosskopf,Instandsetzungsverfahren durch saugen,Kopfkassette undBilderzeugungsgerät

    公开(公告)号:EP1228876A2

    公开(公告)日:2002-08-07

    申请号:EP02002255.4

    申请日:2002-01-30

    IPC分类号: B41J2/14 B41J2/165

    摘要: A liquid ejection head (13) according to the present invention comprises a single liquid supplying port (18) to which a liquid is supplied, a plurality of liquid supplying passages (17a and 17b) having one end in communication with the liquid supplying port (18), a plurality of common liquid chambers (16a and 16b) that are in communication with the other ends of the liquid supplying passages (17a and 17b), respectively, and a plurality of ejection port groups which are in communication with the common liquid chambers (16a and 16b) via liquid channels and from which liquid droplets are ejected. A cross sectional area or length of the liquid supplying passage (17a) in communication with the ejection port group having a larger sum of opening areas of the ejection ports is set smaller or longer respectively than that of the liquid supplying passage (17b) that is in communication with the ejection port group having a smaller sum of opening areas of the ejection ports.

    摘要翻译: 根据本发明的液体喷射头(13)包括供应液体的单个液体供应口(18),具有与液体供应口连通的一端的多个液体供应通道(17a和17b) 18),分别与液体供给通道(17a和17b)的另一端连通的多个公共液体室(16a和16b)和与公共液体连通的多个喷射口组 腔(16a和16b)通过液体通道从中喷出液滴。 分别具有与排出口的喷射口组相比较大的喷射口组的液体供给通道(17a)的横截面积或长度分别比液体供给通道(17b)更大或更长 与排出口组相联,具有较小的排出口的开口面积之和。

    Two-way print apparatus and print method
    55.
    发明公开
    Two-way print apparatus and print method 有权
    双向打印设备和打印方法

    公开(公告)号:EP1088670A3

    公开(公告)日:2002-06-05

    申请号:EP00121457.6

    申请日:2000-09-29

    IPC分类号: B41J2/21

    CPC分类号: B41J19/147

    摘要: Two sets of recording heads for applying ink of cyan (C), magenta (M), and yellow (Y) are arranged in symmetry in a scanning direction and orders of colors C and M ejected onto a pixel of a secondary color are set to symmetric orders (C → M and M → C). This makes the application orders of ink symmetric in each pixel of secondary color and thus there is no difference between application orders in formation of the pixel by either forward or backward scanning, whereby occurrence of uneven color due to the application orders of ink can be reduced even in execution of two-way color print.

    摘要翻译: 用于施加青色(C),品红(M)和黄色(Y)的墨水的两组记录头在扫描方向上对称排列,并且喷射到二次色像素上的颜色C和M的顺序被设置为 对称订单(C→M和M→C)。 这使得在二次色的每个像素中墨的应用顺序对称,并且因此在通过向前或向后扫描形成像素时的应用顺序之间没有差异,由此可以减少由于墨的施加顺序而导致的不均匀颜色的发生 即使在执行双向彩色打印时也是如此。

    An adjusting method of dot printing positions and a printing apparatus
    57.
    发明公开
    An adjusting method of dot printing positions and a printing apparatus 有权
    点打印位置的调整方法和打印设备

    公开(公告)号:EP0974468A3

    公开(公告)日:2000-06-07

    申请号:EP99305729.8

    申请日:1999-07-20

    IPC分类号: B41J2/21 B41J2/505

    CPC分类号: B41J19/145 B41J2/2135

    摘要: A plurality of patterns (SP1 to SP8) respectively having different area factor of dot formation area are formed by forward and reverse scanning printing of a print head (1), and then optical characteristics of the plurality of formed patterns are measured. A function representing the relationship between the printing position offset between the forward and reverse printings is determined from the optical characteristics. Then, respective pattern (PM, PF, PS) having a predetermined area factor of dot formation area is formed by means of forward and reverse scanning where the speed is differentiated according to the mode of a printing apparatus, and then the optical characteristics of this pattern is measured. By applying this measured optical characteristics to the function, an adjustment value of the dot formation position conditions between the forward and reverse scans is obtained for each mode. This makes it easy to perform printing registration in a printing apparatus in the case of printing by a forward and reverse scan of a printing head or in the case of printing by means of a plurality of printing heads. In this case, operations by a user etc. are also unnecessary and are easily performed.

    摘要翻译: 通过打印头(1)的正向和反向扫描打印形成分别具有不同点形成区域的面积系数的多个图案(SP1到SP8),然后测量多个形成的图案的光学特性。 表示正向和反向打印之间的打印位置偏移之间的关系的函数由光学特性确定。 然后,根据打印设备的模式,通过正向和反向扫描形成具有预定面积因数的点形成区域的相应图案(PM,PF,PS),其中速度根据打印设备的模式而不同,然后其光学特性 模式被测量。 通过将该测量的光学特性应用于该功能,针对每个模式获得正向扫描和反向扫描之间的点形成位置条件的调整值。 这使得在通过打印头的正向和反向扫描进行打印的情况下或者在通过多个打印头进行打印的情况下,在打印设备中执行打印配准变得容易。 在这种情况下,用户等的操作也是不必要的并且容易执行。

    An adjustment method of dot printing positions and a printing apparatus
    60.
    发明公开
    An adjustment method of dot printing positions and a printing apparatus 有权
    JustierungsverfahrenfürDruckpunktstellungen und Druckvorrichtung

    公开(公告)号:EP0947323A2

    公开(公告)日:1999-10-06

    申请号:EP99302656.6

    申请日:1999-04-06

    IPC分类号: B41J2/01

    摘要: In complementarily printing by bi-directional scannings of a head (1) or by a plurality of print heads, first patterns (pattern (a)) and second patterns (pattern (b)) including reference dots for example, dots formed by a forward scan of the bi-directional scannings or by one of the plurality of print heads and dots each having the different direction of shifting of relative printing positions to the reference dots are printed in corresponding to the plurality of shifting amounts. These first and second patterns have the similar characteristics of a change in density. The difference is only that their characteristics in density change are inverted according to the direction of shifting. The intersection point of these two characteristics in density change is obtained as a position for adjustment where dot-formed positions match. This makes it easy to perform printing registration in a printing apparatus in the case of printing by a forward and reverse scan of a printing head or in the case of printing by means of a plurality of printing heads. In this case, operations by a user etc. are also unnecessary and are easily performed.

    摘要翻译: 在通过头部(1)或多个打印头,包括参考点的第一图案(图案(a))和第二图案(图案(b))的双向扫描的互补打印例如由前向 对应于多个移位量,打印双向扫描或者将具有不同相对打印位置的方向的移动的多个打印头和点中的一个扫描到参考点。 这些第一和第二图案具有与密度变化相似的特征。 不同之处在于它们的密度变化特性根据移动方向而反转。 获得这两个特征密度变化的交点作为点形位置匹配的调整位置。 这使得在通过打印头的正向和反向扫描进行打印的情况下或者通过多个打印头的打印的情况下,可以容易地在打印设备中进行打印配准。 在这种情况下,用户等的操作也是不必要的,并且容易执行。