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公开(公告)号：US08941845B2
公开(公告)日：2015-01-27
申请号：US13758280
申请日：2013-02-04
申请人： Tadayuki Ueda , Yoshihito Sasamoto , Toru Kasamatsu , Eiji Nishikawa , Satoshi Miyajima , Takanobu Shiki
发明人： Tadayuki Ueda , Yoshihito Sasamoto , Toru Kasamatsu , Eiji Nishikawa , Satoshi Miyajima , Takanobu Shiki
CPC分类号： G06K15/02 , G03G15/00 , G03G15/502
摘要： An image forming apparatus which allows a user to freely select a desired image quality is provided. The control unit 60 sets a of registration set value A1 for determining a color registration error suppression level and a dropout set value A2 for determining a dropout occurrence suppression level. Also, the control unit 60 sets a differential circumferential speed which is the difference between the circumferential speed of photoreceptor drums 1Y to 1K and the circumferential speed of an intermediate transfer belt 6 on the basis of the color registration set value A1 and the dropout set value A2. Then, the control unit 60 controls the belt drive motor 61 and the drum drive motor 62 on the basis of the differential circumferential speed which is set.
摘要翻译： 提供了允许用户自由选择所需图像质量的图像形成装置。 控制单元60设置用于确定颜色登记误差抑制电平的登记设置值A1和用于确定丢失发生抑制电平的丢失设置值A2。 此外，控制单元60基于颜色配准设定值A1和滴定设定值设定作为感光鼓1Y〜1K的圆周速度与中间转印带6的圆周速度之差的差分圆周速度 A2。 然后，控制单元60基于设定的差动圆周速度来控制皮带驱动马达61和滚筒驱动马达62。
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2.发明授权Image forming apparatus, fixing device, and image forming system using the same 失效图像形成装置，定影装置和使用其的图像形成系统公开(公告)号：US08417136B2
公开(公告)日：2013-04-09
申请号：US12962171
申请日：2010-12-07
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2042 , G03G2215/2006
摘要： Provided are an image forming apparatus, a fixing device, and an image forming system using the same, including: an image forming section for transferring a toner image onto a recording sheet; a first and second fixing rollers for thermally fixing the toner image on the recording sheet; a first and second temperature sensors each provided at a plurality of positions in a longitudinal direction of the fixing roller; and a rocking section for reciprocally shifting at least one of the fixing rollers in the longitudinal direction of the fixing roller, wherein the temperature gradient of each of the fixing rollers is detected, a central position of reciprocal shift of one fixing roller which can be shifted is set such that the temperature gradient of the other fixing roller is cancelled, and then the one fixing roller is reciprocally shifted by the rocking section.
摘要翻译： 提供了一种图像形成装置，定影装置和使用该成像装置的图像形成系统，包括：图像形成部分，用于将调色剂图像转印到记录片材上; 第一和第二定影辊，用于将调色剂图像热定影在记录纸上; 每个设置在所述定影辊的纵向方向上的多个位置处的第一和第二温度传感器; 以及摆动部分，用于在定影辊的纵向方向上使至少一个定影辊相互移位，其中检测每个定影辊的温度梯度，可以移动的一个定影辊的往复移位的中心位置 被设定为使得其他定影辊的温度梯度被消除，然后一个定影辊由摆动部分往复移动。
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公开(公告)号：US20110064442A1
公开(公告)日：2011-03-17
申请号：US12874115
申请日：2010-09-01
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G2215/00734 , G03G2215/2016 , G03G2215/2048
摘要： To enhance the fixing quality of a fixing device to continuously fix sheets of a plurality of sizes, a carbon nanotube sheet 75, in which a plurality of carbon nanotubes are arranged such that the longitudinal directions thereof are oriented in the same direction, is provided on the surface of a heating roller 70 so that the carbon nanotube sheet ranges from the position a predetermined distance inside and the position a predetermined distance outside of the position through which each of the both edges of a sheet P2 with smaller width dimension than a sheet P1 of the largest width dimension to be fixed passes.
摘要翻译： 为了提高定影装置的定影质量以连续地固定多个尺寸的片材，将其中多个碳纳米管沿纵向方向排列成相同方向的碳纳米管片75设置在 加热辊70的表面，使得碳纳米管片从距离内部的预定距离的位置和距离片材P2的两个边缘中的每一个的宽度尺寸小于片材P1的位置之外的预定距离 的最大宽度尺寸要固定通过。
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公开(公告)号：US08285185B2
公开(公告)日：2012-10-09
申请号：US12874115
申请日：2010-09-01
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G2215/00734 , G03G2215/2016 , G03G2215/2048
摘要： To enhance the fixing quality of a fixing device to continuously fix sheets of a plurality of sizes, a carbon nanotube sheet 75, in which a plurality of carbon nanotubes are arranged such that the longitudinal directions thereof are oriented in the same direction, is provided on the surface of a heating roller 70 so that the carbon nanotube sheet ranges from the position a predetermined distance inside and the position a predetermined distance outside of the position through which each of the both edges of a sheet P2 with smaller width dimension than a sheet P1 of the largest width dimension to be fixed passes.
摘要翻译： 为了提高定影装置的定影质量以连续地固定多个尺寸的片材，将其中多个碳纳米管沿纵向方向排列成相同方向的碳纳米管片75设置在 加热辊70的表面，使得碳纳米管片从距离内部的预定距离的位置和距离片材P2的两个边缘中的每一个的宽度尺寸小于片材P1的位置之外的预定距离 的最大宽度尺寸要固定通过。
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5.发明授权公开(公告)号：US08879940B2
公开(公告)日：2014-11-04
申请号：US13478467
申请日：2012-05-23
CPC分类号： G03G15/2017 , G03G15/2028 , G03G15/6567 , G03G15/657
摘要： An image forming apparatus includes an adjustment unit that adjusts an image transfer position of the sheet of paper along a main scanning direction that is orthogonal to a transporting direction of the sheet of paper, a fixing unit that fixes on the sheet of paper an toner image using fixing rollers and performs a fluctuation of the fixing roller to the main scanning direction, a detection unit that detects whether or not the fixing rollers of the fixing unit nip the sheet of paper, and a controller. The controller controls the fixing unit to perform the fluctuation of the fixing rollers when determining that the fixing rollers of the fixing unit do not nip the sheet of paper based on a detection result of the detection unit.
摘要翻译： 图像形成装置包括：调节单元，其沿着与纸张的传送方向正交的主扫描方向调整所述纸张的图像转印位置;固定单元，其将所述纸张上的调色剂图像 使用定影辊并使定影辊朝向主扫描方向发生波动;检测单元，其检测定影单元的定影辊是否夹持纸张;以及控制器。 当基于检测单元的检测结果确定定影单元的定影辊不夹持纸张时，控制器控制定影单元执行定影辊的波动。
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6.发明申请IMAGE FORMING APPARATUS, FIXING DEVICE, AND IMAGE FORMING SYSTEM USING THE SAME 失效图像形成装置，固定装置和使用其的图像形成系统公开(公告)号：US20110142468A1
公开(公告)日：2011-06-16
申请号：US12962171
申请日：2010-12-07
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2042 , G03G2215/2006
摘要： Provided are an image forming apparatus, a fixing device, and an image forming system using the same, including: an image forming section for transferring a toner image onto a recording sheet; a first and second fixing rollers for thermally fixing the toner image on the recording sheet; a first and second temperature sensors each provided at a plurality of positions in a longitudinal direction of the fixing roller; and a rocking section for reciprocally shifting at least one of the fixing rollers in the longitudinal direction of the fixing roller, wherein the temperature gradient of each of the fixing rollers is detected, a central position of reciprocal shift of one fixing roller which can be shifted is set such that the temperature gradient of the other fixing roller is cancelled, and then the one fixing roller is reciprocally shifted by the rocking section.
摘要翻译： 提供了一种图像形成装置，定影装置和使用该成像装置的图像形成系统，包括：图像形成部分，用于将调色剂图像转印到记录片材上; 第一和第二定影辊，用于将调色剂图像热定影在记录纸上; 每个设置在所述定影辊的纵向方向上的多个位置处的第一和第二温度传感器; 以及摆动部分，用于在定影辊的纵向方向上使至少一个定影辊相互移位，其中检测每个定影辊的温度梯度，一个定影辊的可移动的往复移位的中心位置 被设定为使得其他定影辊的温度梯度被消除，然后一个定影辊由摆动部分往复移动。
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公开(公告)号：US06064494A
公开(公告)日：2000-05-16
申请号：US578947
申请日：1995-12-27
CPC分类号： H04N1/3935 , H04N1/4072 , H04N1/4092 , H04N1/56
摘要： In an image forming apparatus, a black edge of a document image is emphasized, and the black edge is detected by deciding an edge from the lightness data and by deciding a black color from the chroma data. The data of cyan, magenta and yellow of a pixel at a black edge are replaced with minima of data of cyan, magenta and yellow of pixels in a prescribed region around the pixel. In order to prevent erroneous decision of a black edge, if a number of isolated pixels is larger than a threshold level, a decision as a pixel at a black edge is invalidated. Automatic exposure can be performed on a color document for correcting a background of the document obtained in a prescan. The background level of the document is determined only on pixels decided to be black. When color balance is adjusted on one of the data of cyan, magenta, yellow and black, the density is kept constant. A part of a color document is reproduced in a sheet of paper with use of different levels of an image forming condition such as edge emphasis. That is, image data on the same part of the color data are supplied repeatedly, while image forming condition on the color data are changed successively. Then, the color data of the part is formed repeatedly in a sheet of paper at different levels of the image forming condition.
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公开(公告)号：US5867634A
公开(公告)日：1999-02-02
申请号：US559313
申请日：1995-11-15
CPC分类号： G06T3/4007 , H04N1/3935 , H04N1/4072 , H04N1/4092
摘要： In an image processor, an image of document is read by an image sensor. A reduction ratio of the image is set. Then, interpolation is performed on the image data between a pixel under interest and a pixel adjacent to the pixel under interest according to the reduction ratio. After the interpolation, pixel data in the image data are thinned out to an image data having a size determined by the reduction ratio, and an image is formed on a sheet of paper based on the thined-out data. Because the interpolation is performed before the thinning-out of the image data, defects in a reduced image such as vanishment of a narrow line are reduced, and image quality is improved.
摘要翻译： 在图像处理器中，文件的图像由图像传感器读取。 设定图像的缩小率。 然后，根据缩小率对感兴趣的像素和与感兴趣的像素相邻的像素之间的图像数据进行插值。 在内插之后，将图像数据中的像素数据细化为具有由缩小率确定的尺寸的图像数据，并且基于该输出数据在一张纸上形成图像。 由于在图像数据变薄之前执行插值，所以缩小图像中的缺陷如窄线的消失被减少，并且图像质量得到改善。
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9.发明申请VARIABLE FREQUENCY CLOCK OUTPUT CIRCUIT AND APPARATUS, MOTOR DRIVING APPARATUS, AND IMAGE FORMING APPARATUS 有权可变频率时钟输出电路和装置，电机驱动装置和图像形成装置公开(公告)号：US20080122514A1
公开(公告)日：2008-05-29
申请号：US11853649
申请日：2007-09-11
IPC分类号： H03K3/00
CPC分类号： G06F1/08 , G05B2219/25399 , H02P8/00
摘要： A variable frequency clock output circuit, comprising: a target value register which stores a target value corresponding to an arbitrarily set target frequency; an increase/decrease value register which stores an arbitrarily set increase/decrease value; an adder-subtractor which has an input portion into which a current output value is inputted and outputs a calculation result obtained by adding/subtracting the increase/decrease value stored in the increase/decrease value register to/from the current output value inputted into the input portion based on an addition/subtraction instruction signal; a comparator which compares an output value of the adder-subtractor to the target value stored in the target value register, and outputs an addition/subtraction instruction signal to the adder-subtractor until the output value of the adder-subtractor and the target value coincide; and a clock generator which outputs a clock signal having a frequency proportional to the output value of the adder-subtractor.
摘要翻译： 一种可变频率时钟输出电路，包括：目标值寄存器，存储与任意设定的目标频率对应的目标值; 存储任意设定的增减值的增减值寄存器; 一个加法器 - 减法器，其具有输入电流输出值的输入部分，并输出通过将存储在增减值寄存器中的增减值加上/减去输入到当前输出值的当前输出值而得到的计算结果 输入部分，基于加减指令信号; 比较器，将加减法器的输出值与存储在目标值寄存器中的目标值进行比较，并将加法/减法指令信号输出到加减法器，直到加法器 - 减法器的输出值与目标值一致 ; 以及时钟发生器，其输出具有与加法器 - 减法器的输出值成比例的频率的时钟信号。
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公开(公告)号：US5805970A
公开(公告)日：1998-09-08
申请号：US689770
申请日：1996-08-12
申请人： Toru Kasamatsu
发明人： Toru Kasamatsu
CPC分类号： G03G15/607 , H04N1/00681 , H04N1/00708 , H04N1/00737 , H04N1/00753 , H04N1/00769 , H04N1/00779 , G03G2215/00316 , G03G2215/00324 , G03G2215/00329
摘要： A document size detecting device employed in an image forming apparatus for accurately detecting a document size by using two threshold values. The detecting device uses one threshold for a monochrome document, and the other for a color document, or it uses both the thresholds alternately depending on the number of scanning lines completed by an image sensor.
摘要翻译： 一种在图像形成装置中采用的文档尺寸检测装置，用于通过使用两个阈值来精确地检测文档尺寸。 检测装置使用单色文档的一个阈值，另一个用于彩色文档，或者根据图像传感器完成的扫描线的数量交替使用两个阈值。
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