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1. 发明授权

US07539429B2 Image forming apparatus having a stable image density 有权
标题翻译：图像形成装置具有稳定的图像密度
公开(公告)号：US07539429B2
公开(公告)日：2009-05-26
申请号：US11438352
申请日：2006-05-23
申请人： Takatoku Shimizu
发明人： Takatoku Shimizu
IPC分类号： G03G15/00 , G03G15/02 , G03G15/043 , G03G15/06
CPC分类号： G03G15/0283 , G03G15/04045 , G03G15/065 , G03G2215/0465
摘要： An image forming apparatus is provided capable of preventing fog from happening and obtaining more stable image density, which includes an image carrier; a charging section for charging surface of the image carrier; an exposing section for forming an electrostatic latent image on the image carrier; a developing section for making developer adhere to the electrostatic latent image formed on the image carrier so as to form a visible image; a transferring section to transfer the visible image onto a transfer member; a density detecting section to detect a density of the visible image; a development voltage setting section to set a development; a charge voltage setting section to set a difference between the charge voltage and the development into a value in a predetermined range; and an exposure quantity setting section to set an appointed exposure quantity with respect to the charge voltage.
摘要翻译：提供一种图像形成装置，其能够防止雾的发生，并且获得更稳定的图像密度，其包括图像载体; 用于对图像载体进行充电的充电部分; 用于在所述图像载体上形成静电潜像的曝光部分; 用于使显影剂附着到形成在图像载体上的静电潜像以形成可见图像的显影部分; 转印部分，用于将可见图像转印到转印部件上; 浓度检测部，其检测所述可视图像的浓度; 显影电压设定部，用于设定显影; 充电电压设定部分，用于将充电电压和显影之间的差设定为预定范围内的值; 以及曝光量设定部，设定相对于所述充电电压的指定曝光量。

2. 发明授权

US07466326B2 Image forming method and image forming apparatus 有权
标题翻译：图像形成方法和图像形成装置
公开(公告)号：US07466326B2
公开(公告)日：2008-12-16
申请号：US11235578
申请日：2005-09-26
申请人： Shigeaki Tokutake , Masao Asano , Hiroshi Yamazaki , Yoshihiko Eto
发明人： Shigeaki Tokutake , Masao Asano , Hiroshi Yamazaki , Yoshihiko Eto
IPC分类号： B41J2/435 , G03G15/00
CPC分类号： G03G15/043 , G03G2215/0465
摘要： An image forming method, comprising the steps of: charging uniformly a surface of an organic photoreceptor while rotating the organic photoreceptor; exposing the charged surface of the photoreceptor with a light beam having a wavelength in the range of 350 nm to 500 nm in a main scanning direction to form a dot-shaped electrostatic latent image on the photoreceptor; and developing the dot-shaped electrostatic latent image with toner to form a dot-shaped toner image on the photoreceptor so as to satisfy the following formulas: 1.1≦B/A≦1.5 and 10≦A≦50, where A is the length (μm) of an exposed dot of the dot-shaped electrostatic latent image in the main scanning direction, and B is the length (μm) of a toner dot of the dot-shaped toner image in the main scanning direction.
摘要翻译：一种图像形成方法，包括以下步骤：在旋转有机感光体的同时均匀地充电有机感光体的表面; 在主扫描方向上用波长在350nm至500nm范围内的光束曝光感光体的带电表面，以在感光体上形成点状静电潜像; 并用调色剂显影点状静电潜像，以在感光体上形成点状调色剂图像，以满足下列公式：<？在线公式描述=“在线公式”end =“lead” α> 1.1 <= B / A <= 1.5和10 <= A <= 50，<？in-line-formula description =“In-line Formulas”end =“tail”？>其中A是长度（mum）在主扫描方向上的点状静电潜像的曝光点，B是点状调色剂图像在主扫描方向上的调色剂点的长度（母体）。

3. 发明授权

US4847657A Electrophotographic apparatus for depositing developer only on the image area of the image bearing member 失效
标题翻译：用于将显影剂沉积在图像承载部件的图像区域上的电子照相设备
公开(公告)号：US4847657A
公开(公告)日：1989-07-11
申请号：US245960
申请日：1988-09-16
申请人： Shinji Hanada , Takayuki Ishihara
发明人： Shinji Hanada , Takayuki Ishihara
IPC分类号： G03G15/04 , G03G15/043 , G03G15/047 , G03G15/06 , G03G15/08
CPC分类号： G03G15/047 , G03G15/065 , G03G2215/0451 , G03G2215/0465
摘要： An electrophotograpic apparatus and an electrophotographic process wherein when a developer is to be deposited on such an area of a latent image as has been exposed to light, by a reverse development operation, the non-image-forming area existing before and after the image forming area is exposed to light with the aid of an exposure lamp, whereby the potential of the non-image-forming area is lowered. By this, the possibility of variation of the potential which may otherwise be caused by continuous image forming operation and variation in the ambient conditions can be prevented. Futher, by applying a bias voltage for preventing deposition of the developer in the non-image forming area which is substantially free from potential variation, the developer is prevented from being deposited, irrespective of the variation in the ambient conditions.
摘要翻译：一种电子照相装置和电子照相方法，其中当通过反显影操作将显影剂沉积在已曝光的潜像的这种区域上时，形成图像形成前后的非图像形成区域借助于曝光灯将区域曝光，从而降低非图像形成区域的电位。由此，可以防止可能由连续成像操作引起的电位的变化和环境条件的变化的可能性。此外，通过施加用于防止显影剂在基本上没有电位变化的非图像形成区域中的沉积的偏压，防止显影剂沉积，而不管环境条件的变化。

4. 发明授权

US08339669B2 Image forming apparatus and image forming method with sheet slip compensation 有权
标题翻译：图像形成装置和片材滑移补偿的图像形成方法
公开(公告)号：US08339669B2
公开(公告)日：2012-12-25
申请号：US12029354
申请日：2008-02-11
申请人： Norio Tomita , Yoshikazu Harada , Tetsushi Ito , Yoshiteru Kikuchi
发明人： Norio Tomita , Yoshikazu Harada , Tetsushi Ito , Yoshiteru Kikuchi
IPC分类号： G06K15/00 , G06K15/02 , H04N1/60
CPC分类号： G03G15/011 , G03G15/041 , G03G15/326 , G03G2215/0132 , G03G2215/0141 , G03G2215/0465 , G03G2215/0482
摘要： An LD switch is turned ON to output image data outputted from an image processing section to a laser diode, and to irradiate a laser light to a photosensitive drum. The number of pixel dots included in the image data outputted from the image processing section is computed by line basis to detect an image density based on the total sum of the pixel dots of each color at a timing when the image data of Nth line is outputted from the image processing section. The detected image density is compared with a threshold value to turn OFF the LD switch at a timing when the image data of (N+α)th line is outputted when the image density is greater than the threshold value. This suppresses a variation in a rear-end-void length due to sheet slippage.
摘要翻译： LD开关导通，将从图像处理部输出的图像数据输出到激光二极管，并将激光照射到感光鼓。通过线性计算包括在从图像处理部分输出的图像数据中的像素点的数量，以在第N行的图像数据被输出的定时基于每种颜色的像素点的总和来检测图像浓度从图像处理部分。将检测图像浓度与阈值进行比较，以在图像浓度大于阈值时输出第（N +α）行的图像数据的定时关闭LD开关。这抑制了由于片材滑动导致的后端空隙长度的变化。

5. 发明申请

US20060269306A1 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US20060269306A1
公开(公告)日：2006-11-30
申请号：US11438352
申请日：2006-05-23
申请人： Takatoku Shimizu
发明人： Takatoku Shimizu
IPC分类号： G03G15/00 , G03G15/02 , G03G15/043 , G03G15/06
CPC分类号： G03G15/0283 , G03G15/04045 , G03G15/065 , G03G2215/0465
摘要： An image forming apparatus is provided capable of preventing fog from happening and obtaining more stable image density, which includes an image carrier; a charging section for charging surface of the image carrier; an exposing section for forming an electrostatic latent image on the image carrier; a developing section for making developer adhere to the electrostatic latent image formed on the image carrier so as to form a visible image; a transferring section to transfer the visible image onto a transfer member; a density detecting section to detect a density of the visible image; a development voltage setting section to set a development; a charge voltage setting section to set a difference between the charge voltage and the development into a value in a predetermined range; and an exposure quantity setting section to set an appointed exposure quantity with respect to the charge voltage.
摘要翻译：提供一种图像形成装置，其能够防止雾的发生，并且获得更稳定的图像密度，其包括图像载体; 用于对图像载体进行充电的充电部分; 用于在所述图像载体上形成静电潜像的曝光部分; 用于使显影剂附着到形成在图像载体上的静电潜像以形成可见图像的显影部分; 转印部分，用于将可见图像转印到转印部件上; 浓度检测部，其检测所述可视图像的浓度; 显影电压设定部，用于设定显影; 充电电压设定部分，用于将充电电压和显影之间的差设定为预定范围内的值; 以及曝光量设定部，设定相对于所述充电电压的指定曝光量。

6. 发明授权

US11740579B2 Image forming apparatus 有权
公开(公告)号：US11740579B2
公开(公告)日：2023-08-29
申请号：US17738371
申请日：2022-05-06
申请人： CANON KABUSHIKI KAISHA
发明人： Tomonori Sato
IPC分类号： G03G15/01 , G03G15/00 , G03G15/08
CPC分类号： G03G15/556 , G03G15/0178 , G03G15/0813 , G03G15/5062 , G03G15/0189 , G03G2215/00067 , G03G2215/0119 , G03G2215/0122 , G03G2215/0125 , G03G2215/0132 , G03G2215/0193 , G03G2215/0465 , G03G2215/0617
摘要： An image forming apparatus includes an image bearing member, a developing member, a controller configured to carry out switching control between a first state in which the developing member is caused to act on the image bearing member and a second state in which the developing member is not caused to act on the image bearing member, a transfer member, and a detector configured to read density information of the recording material. The controller detects a fog density on the basis of a difference in density information between a fog non-occurrence region of a non-image region of the recording material in the second state and a fog occurable region of the non-image region of the recording material in the first state.

7. 发明申请

US20080220347A1 IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD 有权
标题翻译：图像形成装置和图像形成方法
公开(公告)号：US20080220347A1
公开(公告)日：2008-09-11
申请号：US12029354
申请日：2008-02-11
申请人： Norio TOMITA , Yoshikazu Harada , Tetsushi Ito , Yoshiteru Kikuchi
发明人： Norio TOMITA , Yoshikazu Harada , Tetsushi Ito , Yoshiteru Kikuchi
IPC分类号： G03G13/14 , G03G15/01
CPC分类号： G03G15/011 , G03G15/041 , G03G15/326 , G03G2215/0132 , G03G2215/0141 , G03G2215/0465 , G03G2215/0482
摘要： An LD switch is turned ON to output image data outputted from an image processing section to a laser diode, and to irradiate a laser light to a photosensitive drum. The number of pixel dots included in the image data outputted from the image processing section is computed by line basis to detect an image density based on the total sum of the pixel dots of each color at a timing when the image data of Nth line is outputted from the image processing section. The detected image density is compared with a threshold value to turn OFF the LD switch at a timing when the image data of (N+α)th line is outputted when the image density is greater than the threshold value. This suppresses a variation in a rear-end-void length due to sheet slippage.
摘要翻译： LD开关导通，将从图像处理部输出的图像数据输出到激光二极管，并将激光照射到感光鼓。通过线性计算包括在从图像处理部分输出的图像数据中的像素点的数量，以在第N行的图像数据被输出的定时基于每种颜色的像素点的总和来检测图像浓度从图像处理部分。将检测图像浓度与阈值进行比较，以在图像浓度大于阈值时输出（N +α）线的图像数据的定时关闭LD开关。这抑制了由于片材滑动导致的后端空隙长度的变化。

8. 发明申请

US20060164496A1 Image forming method and image forming apparatus 有权
标题翻译：图像形成方法和图像形成装置
公开(公告)号：US20060164496A1
公开(公告)日：2006-07-27
申请号：US11235578
申请日：2005-09-26
申请人： Shigeaki Tokutake , Masao Asano , Hiroshi Yamazaki , Yoshihiko Eto
发明人： Shigeaki Tokutake , Masao Asano , Hiroshi Yamazaki , Yoshihiko Eto
IPC分类号： B41J2/41 , G11B3/00
CPC分类号： G03G15/043 , G03G2215/0465
摘要： An image forming method, comprising the steps of: charging uniformly a surface of an organic photoreceptor while rotating the organic photoreceptor; exposing the charged surface of the photoreceptor with a light beam having a wavelength in the range of 350 nm to 500 nm in a main scanning direction to form a dot-shaped electrostatic latent image on the photoreceptor; and developing the dot-shaped electrostatic latent image with toner to form a dot-shaped toner image on the photoreceptor so as to satisfy the following formulas: 1.1≦B/A≦1.5 and 10≦A≦50,where A is the length (μm) of an exposed dot of the dot-shaped electrostatic latent image in the main scanning direction, and B is the length (μm) of a toner dot of the dot-shaped toner image in the main scanning direction.
摘要翻译：一种图像形成方法，包括以下步骤：在旋转有机感光体的同时均匀地充电有机感光体的表面; 在主扫描方向上用波长在350nm至500nm范围内的光束曝光感光体的带电表面，以在感光体上形成点状静电潜像; 并用调色剂显影点状静电潜像，以在感光体上形成点状调色剂图像，以满足下列公式：<？在线公式描述=“在线公式”end =“lead” α> 1.1 <= B / A <= 1.5和10 <= A <= 50，<？in-line-formula description =“In-line Formulas”end =“tail”？>其中A是长度（mum）在主扫描方向上的点状静电潜像的曝光点，B是点状调色剂图像在主扫描方向上的调色剂点的长度（母体）。

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