公开(公告)号：US08456712B2

公开(公告)日：2013-06-04

申请号：US12704655

申请日：2010-02-12

申请人： Shohichi Fukutome ,  Mitsuharu Yoshimoto ,  Norio Tomita ,  Takeshi Mutoh ,  Kazuma Ogawa

发明人： Shohichi Fukutome ,  Mitsuharu Yoshimoto ,  Norio Tomita ,  Takeshi Mutoh ,  Kazuma Ogawa

IPC分类号： H04N1/36

CPC分类号： H04N1/00002 ,  H04N1/00013 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00053 ,  H04N1/00063 ,  H04N1/00087 ,  H04N1/00689 ,  H04N1/00732 ,  H04N1/00745 ,  H04N1/00782 ,  H04N1/12 ,  H04N1/193 ,  H04N2201/0091

摘要： In one embodiment, image reading apparatuses 100a and 100b start reading an original image after a reading start time Ta has elapsed since detecting the transport timing of an original G on the upstream side in a transport direction Y1 relative to an original reading position R1, adjust the reading start time Ta based on a reading timing adjustment time T1a from when the transport timing of an adjustment sheet P is detected until when original reading portions 200a and 200b read a position considered to be a leading edge P′ in a first mark Q1 on the adjustment sheet P, and correct the reading start timing of the original G based on a leading edge reading error correction time T2a stored in advance.

摘要翻译： 在一个实施例中，图像读取装置100a和100b从检测到原稿G在传送方向Y1上相对于原始读取位置R1的上游侧的传送定时经过读取开始时间Ta之后开始读取原始图像，调整 读取开始时间Ta基于从检测到调色片P的传送定时直到原稿读取部分200a和200b读取第一标记Q1中被认为是前沿P'的位置的读取定时调整时间T1a 调整片P，并且基于预先存储的前缘读取错误校正时间T2a来校正原稿G的读取开始定时。

公开(公告)号：US08452209B2

公开(公告)日：2013-05-28

申请号：US13005668

申请日：2011-01-13

申请人： Norio Tomita ,  Yoshikazu Harada ,  Yoshiteru Kikuchi ,  Kohichi Yamauchi

发明人： Norio Tomita ,  Yoshikazu Harada ,  Yoshiteru Kikuchi ,  Kohichi Yamauchi

IPC分类号： G03G15/00

CPC分类号： G03G15/5058 ,  G03G15/0131 ,  G03G2215/00059 ,  G03G2215/00063 ,  G03G2215/0161

摘要： In an image forming apparatus, a computing unit computes phase shift amounts A(i) for every correction relative phase angle θ(j) based on an amplitude B of a reference compressional wave αa, an amplitude C(i) of a detection compressional wave α(i), and a relative phase angle φ(i). A setting unit specifies the phase shift amounts A(i), and sets a correction relative phase angle θ(j) corresponding to the specified phase shift amounts A(i). A correction unit corrects, based on the correction relative phase angle θ(j) set by the setting unit, a relative phase shift between a periodic variation in the circumferential speed of a first image bearing member and a periodic variation in the circumferential speed of a second group image bearing member by operationally controlling at least one of first and second drive units.

摘要翻译： 在图像形成装置中，计算单元基于参考压缩波αa的振幅B，检测压缩波的振幅C（i），计算每个校正相对相位角θ（j）的相移量A（i） α（i）和相对相位角phi（i）。 设定单元指定相移量A（i），并设定与规定的相移量A（i）对应的修正相对角θ（j）。 校正单元基于由设置单元设置的校正相对相位角θ（j）来校正第一图像承载构件的圆周速度的周期性变化与圆周速度的周期性变化之间的相对相移 第二组图像承载部件，通过操作地控制第一和第二驱动单元中的至少一个。

公开(公告)号：US07949289B2

公开(公告)日：2011-05-24

申请号：US11523321

申请日：2006-09-18

申请人： Kengo Matsuyama ,  Yoshikazu Harada ,  Norio Tomita

发明人： Kengo Matsuyama ,  Yoshikazu Harada ,  Norio Tomita

IPC分类号： G03G15/01

CPC分类号： G03G15/5008 ,  G03G2215/0008

摘要： Multiple photoconductive drums on which images with different color components are formed respectively are rotated using individual motors, multiple adjustment images are formed at a predetermined interval along the cycle length of one rotation of each photoconductive drum, the reference phases for the rotation of the respective photoconductive drums are determined based on the maximum portions of the divergences between the predetermined interval and the detection interval of each adjustment image, and the individual motors are controlled so that the respective reference phases determined are aligned. The image forming region corresponding to the cycle length of one rotation of the photoconductive drum is divided into four or more even-numbered regions, the divergence amount of each region is calculated, and the maximum portions of the divergences are determined based on the difference between the divergence amounts of the divided regions being away from each other by a half cycle length.

摘要翻译： 分别在其上分别形成具有不同颜色分量的图像的多个感光鼓被旋转，使用各个电动机，沿着每个感光鼓的一个旋转的周期长度以预定间隔形成多个调整图像，用于各个感光鼓旋转的参考相位 基于预定间隔和每个调整图像的检测间隔之间的差异的最大部分来确定滚筒，并且控制各个马达，使得确定的各个参考相对齐。 对应于感光鼓的一个旋转周期的图像形成区域被划分为四个或更多个偶数区域，计算每个区域的发散量，并且基于区域的差异来确定分歧的最大部分 分割区域的发散量彼此远离半周期长度。

公开(公告)号：US07809309B2

公开(公告)日：2010-10-05

申请号：US12127090

申请日：2008-05-27

申请人： Norio Tomita ,  Yoshikazu Harada ,  Tetsushi Ito ,  Tetsuya Yamaguchi ,  Yoshiteru Kikuchi ,  Kenichi Isomi ,  Showtaro Okamoto

发明人： Norio Tomita ,  Yoshikazu Harada ,  Tetsushi Ito ,  Tetsuya Yamaguchi ,  Yoshiteru Kikuchi ,  Kenichi Isomi ,  Showtaro Okamoto

IPC分类号： G03G15/00

CPC分类号： G03G15/757

摘要： It is an object to prevent distortions and deviations of images caused by the eccentricity of a driven gear mounted to a rotational shaft of a photosensitive drum. There are provided a driving gear which is secured to a rotational shaft of a rotational driving power source and is rotated at a constant peripheral speed, a driven gear secured coaxially to a rotational shaft of a cylindrical-shaped photosensitive member, a phase control gear having the same diameter as that of the driven gear and having the same rotational speed variation characteristic as that of the driven gear, and a transmission gear, and a driving force from the driving gear is transmitted to the driven gear through the phase control gear and the transmission gear.

摘要翻译： 本发明的目的是防止由安装到感光鼓的旋转轴的从动齿轮的偏心引起的图像的变形和偏差。 提供了一种驱动齿轮，该驱动齿轮固定在旋转驱动动力源的旋转轴上并以恒定的圆周速度旋转，同轴地与圆柱形感光构件的旋转轴固定的从动齿轮，具有 与从动齿轮的直径相同，并且具有与从动齿轮相同的转速变化特性和传动齿轮，并且来自驱动齿轮的驱动力通过相位控制齿轮传递到从动齿轮，并且 传动齿轮

公开(公告)号：US20100014878A1

公开(公告)日：2010-01-21

申请号：US12497783

申请日：2009-07-06

申请人： Norio Tomita

发明人： Norio Tomita

IPC分类号： G03G15/00 ,  G03G15/16

CPC分类号： G03G15/0131 ,  G03G15/161 ,  G03G15/50 ,  G03G2215/0132 ,  G03G2215/0161 ,  G03G2215/0164

摘要： To provide an image forming apparatus which can prevent malfunction of the open/close control of a shutter due to erroneous detection of the toner on the transfer belt when the opening and closing of the shutter is detected from the output from an optical sensor. The separation/contact assembly for moving a cleaning member into and out of contact includes an arm rotationally supported on a pivot, an abutment part fixed to the body frame so as to limit the rotation of the arm and a spring for pressing the arm in the clockwise direction. The cleaning member is attached at the distal end of the arm. The cleaning member cleans the transfer belt surface when the shutter is closed, so that the cleaned transfer belt surface can be always detected when the shutter is open.

摘要翻译： 提供一种图像形成装置，当从光学传感器的输出检测到快门的打开和关闭时，可以防止由于错误地检测转印带上的调色剂而导致的快门的打开/关闭控制的故障。 用于将清洁构件移动和移出接触的分离/接触组件包括旋转地支撑在枢轴上的臂，固定到主体框架的抵靠部件，以限制臂的旋转和用于将手臂按压在弹簧中的弹簧 顺时针方向 清洁构件附接在臂的远端。 当快门关闭时，清洁构件清洁转印带表面，使得当快门打开时可以始终检测清洁的转印带表面。

公开(公告)号：US07619642B2

公开(公告)日：2009-11-17

申请号：US11371975

申请日：2006-03-08

申请人： Kengo Matsuyama ,  Norio Tomita ,  Yoshikazu Harada ,  Kenji Tanaka

发明人： Kengo Matsuyama ,  Norio Tomita ,  Yoshikazu Harada ,  Kenji Tanaka

IPC分类号： B41J2/385 ,  B41J2/415 ,  G01D15/06 ,  G03G15/01

CPC分类号： G03G15/0131 ,  G03G2215/0119 ,  G03G2215/0161

摘要： An image forming apparatus in which a plurality of color component images of different colors, which include a reference color (e.g. black) serving as a reference and adjustment colors (e.g. cyan, magenta and yellow) to be adjusted, are formed on respective photosensitive drums and then transferred to a transfer belt. Respective positions of the color component images transferred to the transfer belt are detected by a CCD. Timing adjustment can be performed so that the difference between the detected position of each of the color component images and a prescribed position is not more than a predetermined value, based on the reference color image as the reference. In this case, the color component images are formed on the corresponding photosensitive drums with the same timing by utilizing a single polygon mirror.

摘要翻译： 一种图像形成装置，其中在各个感光鼓上形成包括用作基准的参考颜色（例如黑色）和要调节的调节颜色（例如，青色，品红色和黄色）的不同颜色的多个颜色分量图像 然后转移到转印带上。 通过CCD检测转印到转印带上的颜色成分图像的各个位置。 可以进行定时调整，使得基于参考彩色图像作为参考，每个颜色分量图像的检测位置与规定位置之间的差不超过预定值。 在这种情况下，通过利用单个多面镜，以相同的定时在相应的感光鼓上形成彩色分量图像。

公开(公告)号：US20090252540A1

公开(公告)日：2009-10-08

申请号：US12416692

申请日：2009-04-01

申请人： Norio Tomita ,  Yoshiteru Kikuchi ,  Kenichi Isomi ,  Yoshikazu Harada ,  Tetsushi Ito

发明人： Norio Tomita ,  Yoshiteru Kikuchi ,  Kenichi Isomi ,  Yoshikazu Harada ,  Tetsushi Ito

IPC分类号： G03G15/01

CPC分类号： G03G15/161 ,  G03G15/1605 ,  G03G2215/0132 ,  G03G2215/0161

摘要： An image forming apparatus include: a plurality of photosensitive drums; a latent image forming unit for forming an electrostatic latent image on each photosensitive drum; a developing unit for developing each electrostatic latent image; a transferring unit for superimposing and transferring the developed images onto a moving record medium; a measurement unit for measuring positions of the transferred images on the record medium; and a control unit for controlling the photosensitive drums, the latent image forming unit, the developing unit, and the transferring unit. The control unit includes: a calculating unit for calculating a value related to alignment errors in the positions measured by said measurement unit in accordance with a sine-curve fitting method; and a correcting unit for correcting the alignment errors by the calculated value.

摘要翻译： 图像形成装置包括：多个感光鼓; 用于在每个感光鼓上形成静电潜像的潜像形成单元; 用于显影每个静电潜像的显影单元; 传送单元，用于将显影图像叠加并传送到移动记录介质上; 测量单元，用于测量记录介质上转印图像的位置; 以及用于控制感光鼓，潜像形成单元，显影单元和转印单元的控制单元。 控制单元包括：计算单元，用于根据正弦曲线拟合方法计算由所述测量单元测量的位置中的对准误差相关的值; 以及校正单元，用于通过计算值校正对准误差。

公开(公告)号：US20070242980A1

公开(公告)日：2007-10-18

申请号：US11787149

申请日：2007-04-12

申请人： Yoshiteru Kikuchi ,  Yoshikazu Harada ,  Norio Tomita ,  Kengo Matsuyama ,  Yutaka Eba ,  Tetsushi Ito

发明人： Yoshiteru Kikuchi ,  Yoshikazu Harada ,  Norio Tomita ,  Kengo Matsuyama ,  Yutaka Eba ,  Tetsushi Ito

IPC分类号： G03G15/00

CPC分类号： G03G15/5008 ,  G03G15/0194 ,  G03G2215/0119 ,  G03G2215/0132 ,  G03G2215/0161

摘要： A color image forming apparatus including: a plurality of drum-type photoconductors for forming an image in a different color on each peripheral surface and the photoconductors having at least two different diameters; a plurality of driving sections for driving each photoconductor at a driving speed in accordance with the diameter so that each photoconductor rotates at a predetermined peripheral speed; a correction signal output section for outputting a speed correction signal to correct a periodic pitch fluctuation included in each formed image; and a drive control section for controlling the driving section to correct the driving speed of each photoconductor by the speed correction signal, wherein the speed correction signal is a signal having the same cycle as a rotational cycle of each photoconductor.

摘要翻译： 一种彩色图像形成装置，包括：用于在每个外围表面上形成不同颜色的图像的多个鼓型光电导体和具有至少两个不同直径的光电导体; 多个驱动部分，用于根据直径以驱动速度驱动每个感光体，使得每个感光体以预定的圆周速度旋转; 校正信号输出部分，用于输出速度校正信号以校正每个形成的图像中包括的周期性音调波动; 以及驱动控制部分，用于控制驱动部分以通过速度校正信号校正每个感光体的驱动速度，其中速度校正信号是具有与每个感光体的旋转周期相同周期的信号。

公开(公告)号：US09069318B2

公开(公告)日：2015-06-30

申请号：US13546874

申请日：2012-07-11

申请人： Norio Tomita ,  Hiroshi Nakatani ,  Ryosuke Sakai ,  Takumi Mori ,  Kyosuke Taka ,  Kohichi Yamauchi

发明人： Norio Tomita ,  Hiroshi Nakatani ,  Ryosuke Sakai ,  Takumi Mori ,  Kyosuke Taka ,  Kohichi Yamauchi

IPC分类号： G03G15/00 ,  G03G15/20

CPC分类号： G03G15/6585 ,  G03G2215/00426

摘要： An image forming apparatus includes an image forming portion that forms an image on a recording sheet, a transport path that transports the recording sheet with the image formed thereon by the image forming portion, a coating portion that performs a coating process that forms a coating film on the recording sheet that is being transported on the transport path, and a reading portion that reads a calibration chart on the recording sheet that is being transported on the transport path. The coating portion is disposed on the upstream side in a recording sheet transport direction of the reading portion on the transport path, a calibration process is performed for an image formed by the image forming portion, and the calibration chart is formed on the recording sheet by the image forming portion in order to perform the calibration process.

摘要翻译： 图像形成装置包括在记录片材上形成图像的图像形成部分，由图像形成部分在其上形成的图像传送记录片材的传送路径，执行形成涂膜的涂布处理的涂布部分 在传送路径上被传送的记录纸上，以及读取部分，其读取在传送路径上被传送的记录纸上的校准图。 涂布部分设置在传送路径上的读取部分的记录纸张传送方向上的上游侧，对由图像形成部分形成的图像进行校准处理，并且校准图形由记录纸张形成在记录纸张上 图像形成部分，以便执行校准过程。

公开(公告)号：US09024989B2

公开(公告)日：2015-05-05

申请号：US13540889

申请日：2012-07-03

申请人： Takenori Ohtoshi ,  Norio Tomita ,  Kiyoshi Sasoh ,  Yuji Kumagai

发明人： Takenori Ohtoshi ,  Norio Tomita ,  Kiyoshi Sasoh ,  Yuji Kumagai

IPC分类号： B41J2/47 ,  B41J2/525 ,  G03G21/20 ,  G03G15/04 ,  H04N1/00 ,  H04N1/113 ,  H04N1/23 ,  H04N1/50

CPC分类号： B41J2/525 ,  B41J2/473 ,  G03G15/04045 ,  G03G21/20 ,  G03G2215/0158 ,  H04N1/00015 ,  H04N1/00023 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00055 ,  H04N1/00063 ,  H04N1/00068 ,  H04N1/00087 ,  H04N1/0009 ,  H04N1/1135 ,  H04N1/2346 ,  H04N1/506 ,  H04N2201/0094 ,  H04N2201/0471 ,  H04N2201/04722 ,  H04N2201/04729 ,  H04N2201/04732

摘要： In a registration step, the temperature near a polygon mirror (83) is detected by a first temperature sensor (85), and the internal ambient temperature of an image forming apparatus (1) is detected by a second temperature sensor (86). Also, a registration adjustment value of each color is determined and stored in a memory (75). In a printing step, the registration adjustment value (A) of each color determined in the registration step is corrected based on a change in the temperature near the polygon mirror (83) and a change in the internal ambient temperature of the image forming apparatus (1). Furthermore, the write timing of an electrostatic latent image onto each photosensitive drum (13) by an optical scanning device (11) is controlled. Then, the position of the electrostatic latent image on each photosensitive drum (13) is shifted by an amount corresponding to the corrected registration adjustment value.

摘要翻译： 在配准步骤中，通过第一温度传感器（85）检测多面镜（83）附近的温度，通过第二温度传感器（86）检测图像形成装置（1）的内部环境温度。 此外，确定每种颜色的配准调整值并将其存储在存储器（75）中。 在打印步骤中，基于多面镜83附近的温度变化和图像形成装置的内部环境温度的变化来校正在配准步骤中确定的每种颜色的配准调整值（A） 1）。 此外，控制通过光学扫描装置（11）将静电潜像写入每个感光鼓（13）的时序。 然后，将各感光鼓（13）上的静电潜像的位置移动与校正的对准调整值对应的量。