Driving system for a plasma display panel
    31.
    发明授权
    Driving system for a plasma display panel 失效
    等离子显示面板驱动系统

    公开(公告)号:US6018329A

    公开(公告)日:2000-01-25

    申请号:US18656

    申请日:1998-02-04

    摘要: A discriminator is provided in a driving system for a plasma display panel so as to discriminate whether an input video signal is a moving picture signal or a still picture signal, and an A/D converter is provided for sampling the video signal for producing a pixel data having n-bit. The pixel data is converted into a false contour correcting pixel data having a (n+m)-bit based on a correcting pixel data derived from a table. A controller selects the false contour correcting pixel data when the input video signal is a moving picture signal, and selects the pixel data from the A/D converter when a still picture signal. The plasma display panel is driven by a pixel data determined by the controller.

    摘要翻译: 在等离子体显示面板的驱动系统中设置鉴别器,以便判别输入视频信号是运动图像信号还是静止图像信号,并且提供A / D转换器用于对视频信号进行采样以产生像素 数据具有n位。 基于从表导出的校正像素数据,将像素数据转换为具有(n + m)位的伪轮廓校正像素数据。 当输入视频信号是运动图像信号时,控制器选择假轮廓校正像素数据,并且当静止图像信号时从A / D转换器选择像素数据。 等离子体显示面板由控制器确定的像素数据驱动。

    Toner image fixing apparatus for an image forming machine
    32.
    发明授权
    Toner image fixing apparatus for an image forming machine 失效
    用于图像形成机的调色剂图像定影装置

    公开(公告)号:US4914484A

    公开(公告)日:1990-04-03

    申请号:US356947

    申请日:1989-05-25

    申请人: Hiroshi Kida

    发明人: Hiroshi Kida

    IPC分类号: G03G15/20

    摘要: In a toner image fixing apparatus for an image forming machine, toner image transferred on a paper is heated at a predetermined fixing temperature. The fixing temperature is set to be larger than or equal to the toner melting temperature plus 10 [.degree.C.], and smaller than or equal to the toner melting temperature plus 20 [.degree.C.], in order to prevent rumples from forming on the paper. The paper is run at a predetermined speed slightly lower than the transfer speed of 60 mm/sec or less. Two cylindrical rollers are used to press the paper. The hardness of the surface of one of the rollers is set at 40.degree. or more. The fixing length of the portion where the rollers are in contact with one another is set at 2.5 mm or less. The distance between the fixing apparatus and the edge of a guide plate is set to be larger than or equal to 0.2 times the diameter of one of the rollers. Another aspect of the invention is setting the fixing speed higher than or equal to 1.005 times transfer speed, and lower than or equal to 1.02 times the transfer speed.

    Heating device
    34.
    发明授权
    Heating device 有权
    加热装置

    公开(公告)号:US07446281B2

    公开(公告)日:2008-11-04

    申请号:US10556151

    申请日:2004-05-11

    IPC分类号: H05B1/00 G03G15/20

    CPC分类号: G03G15/2064

    摘要: A fusing device (23) has heat reflectors (238) and (239) positioned in consideration of the fact that convective heat loss from respective outer surfaces of the heat reflectors (238) and (239) depends on orientation of the outer surfaces. More specifically, each of the heat reflectors (238) and (239) are positioned so as to have a convective heat transfer coefficient η of up to 0.9. The convective heat transfer coefficient η is given by the following expression: η=(Su+0.77Sh+0.54Sd)/(Su+Sh+Sd), were Su is a projected area of an outer surface of each of the heat reflectors on an upper horizontal plane, Sh is a projected area of the same on a vertical plane, and Sd is a projected area of the same on a lower horizontal plane.

    摘要翻译: 考虑到来自热反射器(238)和(239)的各个外表面的对流热损失取决于外表面的定向的事实,定影装置(23)具有热反射器(238)和(239)。 更具体地,每个热反射器(238)和(239)被定位成具有高达0.9的对流传热系数η。 eta =(Su + 0.77Sh + 0.54Sd)/(Su + 0.77Sh + 0.54Sd)/(Su + 0.77Sh + 0.54Sd) Sh + Sd),<?in-line-formula description =“In-line Formulas”end =“tail”?> Su是上水平面上每个热反射器的外表面的投影面积,Sh 是在垂直平面上的投影面积,并且Sd是在下部水平面上的投影面积。

    Fixing deviceand fixing method and image forming device
    36.
    发明申请
    Fixing deviceand fixing method and image forming device 有权
    固定装置及固定方法及成像装置

    公开(公告)号:US20070036571A1

    公开(公告)日:2007-02-15

    申请号:US10571939

    申请日:2004-09-15

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2039

    摘要: A fixing device (23) of the present invention includes a fixing roller (131) contacting a toner image surface, and a pressure roller (132) contacting a surface opposite to the toner image surface. In the fixing device (23), a printing sheet (P) on which unfixed toner image is formed passes through a fixing nip portion (Y) where the fixing roller (131) and the pressure roller (132) are in contact with each other, so that the above-described toner image is fixed on the printing sheet (P). The fixing device (23) further includes a control circuit (150) which controls heater lamps (134 to 136) so that a surface temperature of the pressure roller (132) is in a temperature range defined by a cold offset occurring boundary temperature (Thc) of the fixing roller (131) and/or a hot offset occurring boundary temperature (Thh) of the fixing roller (131). With this, it is possible to suppress or prevent a transfer of toner to a pair of rollers (a transfer from the back of the printing sheet to the pressure roller, a transfer from the pressure roller to the fixing roller).

    摘要翻译: 本发明的定影装置(23)包括与调色剂图像表面接触的定影辊(131)和与调色剂图像表面相对的表面接触的加压辊(132)。 在固定装置(23)中,形成有未定影调色剂图像的打印纸(P)通过定影辊(131)和加压辊(132)彼此接触的定影夹持部(Y) ,使得上述调色剂图像固定在打印纸(P)上。 定影装置(23)还包括控制加热灯(134至136)的控制电路(150),使得加压辊(132)的表面温度处于由冷偏移发生的边界温度(Thc)限定的温度范围内 )和/或定影辊(131)的热偏移发生边界温度(Thh)。 由此,可以抑制或防止调色剂转印到一对辊(从印刷纸的背面到加压辊的转印,从加压辊到定影辊的转印)。

    Toothed belt transmission
    37.
    发明授权

    公开(公告)号:US07144345B2

    公开(公告)日:2006-12-05

    申请号:US10345753

    申请日:2003-01-16

    IPC分类号: F16G1/28

    CPC分类号: F16H55/171 F16G1/28 F16H7/023

    摘要: A toothed belt transmission is provided in which a toothed belt is trained around drive and driven pulleys. Each toothed pulley has a circumferential periphery formed with a plurality of teeth. Adjacent teeth are assigned as a first tooth portion and a second tooth portion. Respective tooth portions have arcuate portions at corners defined between tooth edges and tooth surfaces. A line touching the arcuate portions of the first and second tooth portions is assigned as a common tangential line. A line passing over a starting point of the arcuate portion of the tooth edge of the first tooth is assigned as a first tangential line. An angle between the common tangential line and the first tangential line falls in a range between 6° and 14.4°.

    Heating device and image forming device
    38.
    发明申请
    Heating device and image forming device 有权
    加热装置和成像装置

    公开(公告)号:US20060237417A1

    公开(公告)日:2006-10-26

    申请号:US10567791

    申请日:2004-08-10

    IPC分类号: H05B3/00

    摘要: Within a fixing roller (231) are disposed a main heater lamp (234a) for heating a central portion of the fixing roller and a sub-heater lamp (235a) for heating opposite end portions of the fixing roller. MRnh, SRnh and ΣRnh satisfy the formula (1) or (2): ΣRnh≧30.5·Ln(Ht)+382  formula (1) MRnh≦−21.9·Ln(Ht)−198  formula (2), where MRnh is a mean value of heat distribution in a no-heat generating section of the main heater lamp; SRnh is a mean value of heat distribution in the a no-heat generating section of the sub-heater lamp; ΣRnh is the sum total of these mean values; and Ht=vp/(Mh·λ) where vp is a fixing speed (m/s), Mh a heat capacity per unit length of the heating member (J/(° C.·m)) and λ a heat conductivity of a material forming the heating member (W/(m·° C.)).

    摘要翻译: 在定影辊(231)内设置有用于加热定影辊的中心部分的主加热灯(234a)和用于加热定影辊相对端部的副加热灯(235a)。 MRnh,SRnh和SigmaRnh满足公式(1)或(2):<?in-line-formula description =“In-line Formulas”end =“lead”?> SigmaRnh> = 30.5.Ln(Ht)+382 formula (1)<?in-line-formula description =“In-line Formulas”end =“tail”?> <?in-line-formula description =“In-line Formulas”end =“lead”?> MRnh <= -21.9.Ln(Ht)-198式(2),<?in-line-formula description =“In-line Formulas”end =“tail”?>其中MRnh是无热分布的平均值 主加热灯的发电部分; SRnh是副加热灯的无热生成部的热分布的平均值; SigmaRnh是这些平均值的总和; 和Ht = vp /(Mh.lambda)其中vp是定影速度(m / s),Mh是加热构件的每单位长度的热容(J /(℃))和λ的热导率 形成加热构件的材料(W /(m℃))。

    Fixing device cleaning device and image forming device
    39.
    发明申请
    Fixing device cleaning device and image forming device 有权
    固定装置清洗装置及成像装置

    公开(公告)号:US20050207803A1

    公开(公告)日:2005-09-22

    申请号:US11006756

    申请日:2004-12-08

    CPC分类号: G03G15/2025

    摘要: A fixing device cleaning device of the present invention is provided on a fixing device which includes: a heating member heated by heating means; and a pressing member pressed against the heating member at a predetermined contact pressure, and a recording sheet is sandwiched by a pressing section of the heating member and a pressing section of the pressing member, and developer on the recording sheet is fixed, and the fixing device cleaning device includes a cleaning member, formed in a scraper shape, which is pressed against the heating member or the pressing member so as to remove the developer from a surface of the heating member or the pressing member, wherein the cleaning member includes one or more opening sections in a vicinity of a contact point with respect to a cleaning target surface of the heating member or the pressing member. Thus, foreign substances scraped by the cleaning member move to a surface (a rear surface with respect to a surface which is in contact with the cleaning target surface) of the cleaning member via the opening sections, so that the foreign substances are not deposited on a gap between the cleaning member and the cleaning target surface, thereby preventing the deposited foreign substances from adhering to the cleaning target surface again.

    摘要翻译: 本发明的定影装置清洁装置设置在定影装置上,该定影装置包括:通过加热装置加热的加热构件; 按压部件按规定的接触压力按压加热部件,将记录片材夹持在加热部件的按压部和按压部件的按压部分之间,并将记录片材上的显影剂固定, 装置清洁装置包括形成为刮板形状的清洁构件,其被压靠在加热构件或按压构件上,以便从加热构件或加压构件的表面移除显影剂,其中清洁构件包括一个或 相对于加热部件或按压部件的清洁对象面的接触点附近的多个开口部。 因此,被清扫部件刮除的异物经由开口部移动到清扫部件的表面(相对于与清洗对象面接触的面的后表面),使得异物不会沉积在 清洁构件和清洁目标表面之间的间隙,从而防止沉积的异物再次粘附到清洁目标表面。

    Screw conveyor and developer conveying mechanism
    40.
    发明申请
    Screw conveyor and developer conveying mechanism 有权
    螺旋输送机和显影剂输送机构

    公开(公告)号:US20050196207A1

    公开(公告)日:2005-09-08

    申请号:US11068875

    申请日:2005-03-02

    IPC分类号: G03G15/08 G03G21/00 G03G21/10

    CPC分类号: G03G21/105 G03G2215/0827

    摘要: An embodiment of a screw conveyor includes a rotating shaft and a conveying blade helically formed around and loosely coupled with the rotating shaft. One or both of two edges of the conveying blade is/are only fixed to the rotating shaft, and a gap is provided between the rotating shaft and the conveying blade. Thereby, the conveying blade can be vibrated in a center axis direction of the rotating shaft by rotation of the rotating shaft and conveyed waste developer.

    摘要翻译: 螺旋输送机的一个实施例包括旋转轴和输送叶片,螺旋形地围绕旋转轴形成并且松耦合。 输送叶片的两个边缘中的一个或两个仅固定到旋转轴,并且在旋转轴和输送叶片之间设置有间隙。 由此,输送叶片能够通过旋转轴的旋转和输送废弃显影剂而在旋转轴的中心轴方向上振动。