公开(公告)号：US08116673B2

公开(公告)日：2012-02-14

申请号：US12124350

申请日：2008-05-21

Applicant: Hyung-Won Yoon ,  Hyun-Ki Cho ,  Tae-Hee Kim

Inventor： Hyung-Won Yoon ,  Hyun-Ki Cho ,  Tae-Hee Kim

IPC: B65H3/06

CPC classification number: B65H3/0607 ,  B65H2403/51 ,  B65H2511/152 ,  B65H2511/222 ,  B65H2801/06 ,  B65H2220/01 ,  B65H2220/02 ,  B65H2220/11

Abstract: A printing medium supplying unit comprises a printing medium loading plate configured to move up and down based on an amount of printing medium loaded on the printing medium loading plate and an elevation control unit configured to adjust an elevation height of the printing medium loading plate such that a standby position of the printing medium loading plate can vary based on an amount of the printing medium loaded on the printing medium loading plate, wherein the standby position of the printing medium loading plate is a position in which the printing medium loading plate does not supply the printing medium to an image forming unit.

Abstract translation: 打印介质供给单元包括：打印介质装载板，其被配置为基于装载在打印介质装载板上的打印介质的量上下移动;升降控制单元，其构造成调整打印介质装载板的高度，使得 打印介质装载板的备用位置可以基于装载在打印介质装载板上的打印介质的量而变化，其中打印介质装载板的备用位置是打印介质装载板不供应的位置 打印介质到图像形成单元。

公开(公告)号：US08606149B2

公开(公告)日：2013-12-10

申请号：US13200344

申请日：2011-09-23

Applicant: Hyun-Ki Cho ,  Sung-Dae Kim ,  Jong-Tae Kim ,  Dong-Hoon Han

Inventor： Hyun-Ki Cho ,  Sung-Dae Kim ,  Jong-Tae Kim ,  Dong-Hoon Han

IPC: G03G15/00

CPC classification number: G03G15/757 ,  G03G15/0194 ,  G03G2215/00075

Abstract: An image forming apparatus is configured to reduce a velocity fluctuation of a rotating body by reducing the AC velocity component of the rotating body. The image forming apparatus may include an image bearing body with a surface on which a toner image is formed; a driving motor configured to drive the image bearing body according to an input signal; and a controller configured to control the driving motor to output a motor output velocity at a period equal to that of an AC velocity component of the image bearing body. A velocity control method for the rotating body includes sampling a continuous motor input signal at a period equal to that of an AC velocity component of a rotating velocity of the rotating body. The sampled signal is transmitted to a driving motor that drives the rotating body, which is driven based upon the discrete motor input signal.

Abstract translation: 图像形成装置被配置为通过减小旋转体的AC速度分量来减小旋转体的速度波动。 图像形成装置可以包括具有其上形成有调色剂图像的表面的图像承载体; 驱动电动机，被配置为根据输入信号驱动图像承载体; 以及控制器，被配置为控制所述驱动电动机以与所述图像承载体的交流速度分量的周期相等的周期输出电动机输出速度。 用于旋转体的速度控制方法包括以与旋转体的旋转速度的交流速度分量相等的周期对连续的电动机输入信号进行采样。 采样信号被传送到驱动电动机，该驱动电动机基于分立的电动机输入信号被驱动。

公开(公告)号：US08644734B2

公开(公告)日：2014-02-04

申请号：US12632993

申请日：2009-12-08

Applicant: Hyun-Ki Cho

Inventor： Hyun-Ki Cho

IPC: G03G15/00 ,  G03G15/01

CPC classification number: G03G15/5008 ,  G03G15/0194 ,  G03G2215/0132 ,  G03G2215/0158

Abstract: An image forming apparatus may include one or more photosensitive media, a driving unit to rotate the photosensitive media, a detecting unit to detect a rotational state of each of the photosensitive media and a controller to control the driving unit based on the rotational state detected by the detecting unit so that two adjacent photosensitive media stop with a phase angle difference between them that is capable of compensating for image registration errors.

Abstract translation: 图像形成装置可以包括一个或多个感光介质，用于旋转感光介质的驱动单元，用于检测每个感光介质的旋转状态的检测单元和控制器，用于基于由 检测单元，使得两个相邻的感光介质以能够补偿图像配准误差的它们之间的相位角差停止。

公开(公告)号：US07965966B2

公开(公告)日：2011-06-21

申请号：US12575853

申请日：2009-10-08

Applicant: Yoon-Hwak Kim ,  Jong-Woo Kim ,  Hyun-Ki Cho ,  Young-Dae Ko ,  Jong-Tae Kim

Inventor： Yoon-Hwak Kim ,  Jong-Woo Kim ,  Hyun-Ki Cho ,  Young-Dae Ko ,  Jong-Tae Kim

IPC: G03G15/01 ,  G03G15/16

CPC classification number: G03G15/1685 ,  G03G15/0194 ,  G03G2215/0141

Abstract: Disclosed are a transfer unit and an image forming apparatus having the same. The apparatus can include multiple members configured to carry developer associated with color images. The transfer unit can include multiple rollers each disposed to opposingly face a respective corresponding one of the members, a belt interposed between the rollers and the members, and a device configured to support the rollers. The rollers can include a first roller at one end of the transfer unit, a second roller at an opposite end and one or more middle rollers arranged between the first and second rollers. The device can be configured such that a rotation center of the first roller and a rotation center of the second roller define a first plane and a rotation center of the one or more middle rollers defines a second plane parallel to but not co-planar with the first plane.

Abstract translation: 公开了一种转印单元和具有该转印单元的图像形成装置。 该装置可以包括被配置为承载与彩色图像相关联的显影剂的多个构件。 传送单元可以包括多个辊，每个辊被设置为相对地面对相应的相应的一个构件，插入在辊和构件之间的带以及被配置为支撑辊的装置。 辊可以包括位于转印单元的一端的第一辊，在相对端的第二辊和布置在第一和第二辊之间的一个或多个中间辊。 该装置可以被构造成使得第一辊的旋转中心和第二辊的旋转中心限定第一平面，并且一个或多个中间辊的旋转中心限定与第一辊平行但不与共面的第二平面 第一架飞机

公开(公告)号：US08229327B2

公开(公告)日：2012-07-24

申请号：US12575106

申请日：2009-10-07

Applicant: Hyun-Ki Cho ,  Sung-Dae Kim ,  Jong-Tae Kim ,  Dong-Hoon Han

Inventor： Hyun-Ki Cho ,  Sung-Dae Kim ,  Jong-Tae Kim ,  Dong-Hoon Han

IPC: G03G15/00

CPC classification number: G03G15/757 ,  G03G15/0194 ,  G03G2215/00075

Abstract: An image forming apparatus is configured to reduce a velocity fluctuation of a rotating body by reducing the AC velocity component of the rotating body. The image forming apparatus may include an image bearing body with a surface on which a toner image is formed; a driving motor configured to drive the image bearing body according to an input signal; and a controller configured to control the driving motor to output a motor output velocity at a period equal to that of an AC velocity component of the image bearing body. A velocity control method for the rotating body includes sampling a continuous motor input signal at a period equal to that of an AC velocity component of a rotating velocity of the rotating body. The sampled signal is transmitted to a driving motor that drives the rotating body, which is driven based upon the discrete motor input signal.

公开(公告)号：US20120087696A1

公开(公告)日：2012-04-12

申请号：US13200344

申请日：2011-09-23

Applicant: Hyun-Ki Cho ,  Sung-Dae Kim ,  Jong-Tae Kim ,  Dong-Hoon Han

Inventor： Hyun-Ki Cho ,  Sung-Dae Kim ,  Jong-Tae Kim ,  Dong-Hoon Han

IPC: G03G15/00 ,  G03G13/00

CPC classification number: G03G15/757 ,  G03G15/0194 ,  G03G2215/00075

Abstract: An image forming apparatus is configured to reduce a velocity fluctuation of a rotating body by reducing the AC velocity component of the rotating body. The image forming apparatus may include an image bearing body with a surface on which a toner image is formed; a driving motor configured to drive the image bearing body according to an input signal; and a controller configured to control the driving motor to output a motor output velocity at a period equal to that of an AC velocity component of the image bearing body. A velocity control method for the rotating body includes sampling a continuous motor input signal at a period equal to that of an AC velocity component of a rotating velocity of the rotating body. The sampled signal is transmitted to a driving motor that drives the rotating body, which is driven based upon the discrete motor input signal.

Abstract translation: 图像形成装置被配置为通过减小旋转体的AC速度分量来减小旋转体的速度波动。 图像形成装置可以包括具有其上形成有调色剂图像的表面的图像承载体; 驱动电动机，被配置为根据输入信号驱动图像承载体; 以及控制器，被配置为控制所述驱动电动机以与所述图像承载体的交流速度分量的周期相等的周期输出电动机输出速度。 用于旋转体的速度控制方法包括以与旋转体的旋转速度的交流速度分量相等的周期对连续的电动机输入信号进行采样。 采样信号被传送到驱动电动机，该驱动电动机基于分立的电动机输入信号被驱动。

公开(公告)号：US20100104321A1

公开(公告)日：2010-04-29

申请号：US12575106

申请日：2009-10-07

Applicant: Hyun-Ki Cho ,  Sung-Dae Kim ,  Jong-Tae Kim ,  Dong-Hoon Han

Inventor： Hyun-Ki Cho ,  Sung-Dae Kim ,  Jong-Tae Kim ,  Dong-Hoon Han

IPC: G03G15/00 ,  H02K29/00

CPC classification number: G03G15/757 ,  G03G15/0194 ,  G03G2215/00075

Abstract: An image forming apparatus is configured to reduce a velocity fluctuation of a rotating body by reducing the AC velocity component of the rotating body. The image forming apparatus may include an image bearing body with a surface on which a toner image is formed; a driving motor configured to drive the image bearing body according to an input signal; and a controller configured to control the driving motor to output a motor output velocity at a period equal to that of an AC velocity component of the image bearing body. A velocity control method for the rotating body includes sampling a continuous motor input signal at a period equal to that of an AC velocity component of a rotating velocity of the rotating body. The sampled signal is transmitted to a driving motor that drives the rotating body, which is driven based upon the discrete motor input signal.

Abstract translation: 图像形成装置被配置为通过减小旋转体的AC速度分量来减小旋转体的速度波动。 图像形成装置可以包括具有其上形成有调色剂图像的表面的图像承载体; 驱动电动机，被配置为根据输入信号驱动图像承载体; 以及控制器，被配置为控制所述驱动电动机以与所述图像承载体的交流速度分量的周期相等的周期输出电动机输出速度。 用于旋转体的速度控制方法包括以与旋转体的旋转速度的交流速度分量相等的周期对连续的电动机输入信号进行采样。 采样信号被传送到驱动电动机，该驱动电动机基于分立的电动机输入信号被驱动。