公开(公告)号：US20120134190A1

公开(公告)日：2012-05-31

申请号：US13193994

申请日：2011-07-29

Applicant: Sang-kyu LEE ,  Gu-dal Kwon

Inventor： Sang-kyu LEE ,  Gu-dal Kwon

IPC: H02M7/02

CPC classification number: H02M1/36 ,  G03G15/80

Abstract: An image forming apparatus includes an image forming unit which forms an image, a power supply which converts input alternating current (AC) power and outputs direct current (DC) power having a predetermined level to operate the image forming unit; a mechanical power switch through which the AC power is supplied and/or shut off, a switch circuit unit which includes a soft power switch to select a turned-on status and/or a turned-off status in accordance with a user's handling, and outputs a switch signal corresponding to a status of the soft power switch, a power controller which selectively supplies the DC power from the power supply to the image forming unit on the basis of the switch signal, and a discharging circuit unit which discharges remaining power of the power supply if the AC power is shut off by the mechanical power switch. Accordingly, a user may quickly turn on/off power using a power switch, and mistaken malfunction may be prevented.

Abstract translation: 图像形成装置包括形成图像的图像形成单元，转换输入交流电（AC）电力并输出具有预定电平的直流（DC）功率的电源，以操作图像形成单元; 一个供电和/或切断AC电源的机械电源开关，一个开关电路单元，它包括一个根据使用者的操作选择开机状态和/或关机状态的软电源开关，以及 输出对应于软电源开关状态的开关信号，功率控制器，其根据开关信号有选择地将来自电源的DC电力提供给图像形成单元;以及放电电路单元，其将剩余电力 如果交流电源被机械电源开关切断，则电源。 因此，用户可以使用电源开关快速地接通/断电，并且可以防止错误的故障。

公开(公告)号：US09024990B2

公开(公告)日：2015-05-05

申请号：US13432432

申请日：2012-03-28

Applicant: Sung-geun Lim ,  Gu-dal Kwon

Inventor： Sung-geun Lim ,  Gu-dal Kwon

IPC: B41J2/435 ,  B41J2/47 ,  G02B26/12

CPC classification number: G03G15/043 ,  B41J2/471 ,  G02B26/10 ,  G02B26/127

Abstract: A light scanning unit and an image forming apparatus employing the same. The light scanning unit deflects light in a main scanning direction, irradiates the light on a photoconductive drum, and includes a beam detecting sensor to detect a horizontal synchronization signal by receiving a part of the light beam reflected and scanned by a beam deflector, and leads of terminals of the beam detecting sensor are not exposed to the light beam to be scanned.

Abstract translation: 光扫描单元和使用该扫描单元的图像形成装置。 光扫描单元在主扫描方向上偏转光，将光照射在感光鼓上，并且包括光束检测传感器，以通过接收由光束偏转器反射和扫描的一部分光束来检测水平同步信号，并且引线 光束检测传感器的端子不暴露于待扫描的光束。

公开(公告)号：US20130033557A1

公开(公告)日：2013-02-07

申请号：US13432432

申请日：2012-03-28

Applicant: Sung-geun LIM ,  Gu-dal Kwon

Inventor： Sung-geun LIM ,  Gu-dal Kwon

IPC: B41J2/435 ,  G02B26/08

CPC classification number: G03G15/043 ,  B41J2/471 ,  G02B26/10 ,  G02B26/127

Abstract: A light scanning unit and an image forming apparatus employing the same. The light scanning unit deflects light in a main scanning direction, irradiates the light on a photoconductive drum, and includes a beam detecting sensor to detect a horizontal synchronization signal by receiving a part of the light beam reflected and scanned by a beam deflector, and leads of terminals of the beam detecting sensor are not exposed to the light beam to be scanned.

Abstract translation: 光扫描单元和使用该扫描单元的图像形成装置。 光扫描单元在主扫描方向上偏转光，将光照射在感光鼓上，并且包括光束检测传感器，以通过接收由光束偏转器反射和扫描的一部分光束来检测水平同步信号，并且引线 光束检测传感器的端子不暴露于待扫描的光束。

公开(公告)号：US20060056882A1

公开(公告)日：2006-03-16

申请号：US11165677

申请日：2005-06-27

Applicant: Gu-dal Kwon ,  Eun-ah Song

Inventor： Gu-dal Kwon ,  Eun-ah Song

IPC: G03G15/01 ,  B41J2/385

CPC classification number: H04N1/506 ,  G03G15/0194 ,  G03G2215/0161

Abstract: A color registration control method and an image forming apparatus using the same are provided, wherein the color registration control method includes the steps of developing a registration pattern by overlapping a first pattern and a second pattern each of which having a length in a sub-scanning direction, detecting the densities of an upper pattern and a lower pattern included in the registration pattern, comparing the density of the upper pattern with the density of the lower pattern and generating density information, and outputting a registration control signal by referring to the offset information and the density information.

Abstract translation: 提供了一种颜色登记控制方法和使用其的图像形成装置，其中，颜色登记控制方法包括以下步骤：通过重叠第一图案和第二图案来显影注册图案，每个图案具有在副扫描中的长度 检测注册图案中包含的上部图案和下部图案的密度，将上部图案的浓度与下部图案的浓度进行比较，并产生浓度信息，并通过参考偏移信息输出登记控制信号 和密度信息。