Image reader for use in image forming apparatus
    11.
    发明授权
    Image reader for use in image forming apparatus 失效
    用于图像形成装置的图像读取器

    公开(公告)号:US07446909B2

    公开(公告)日:2008-11-04

    申请号:US10878061

    申请日:2004-06-29

    Inventor: Yusuke Hashizume

    Abstract: The image reader according to the present invention is able to set the accurate threshold level free of influence of dirt and dust even when the reference “white” level is requested for shading correction during the acceleration while the carriage is being accelerated without increasing the averaging frequency when the reflected light from the white board is read for shading correction. In addition, because the distance between the head end of the transparent glass and the home position as well as the distance between the home position and the reading window are shortened, the size of the image reader is reduced.

    Abstract translation: 根据本发明的图像读取器能够设置准确的阈值水平,即使当在加速时加速期间请求参考“白色”电平用于阴影校正而不增加平均频率时,灰尘和灰尘也不受影响 当来自白板的反射光被读取用于阴影校正时。 此外,由于透明玻璃的头端与原始位置之间的距离以及原始位置和读取窗口之间的距离被缩短,所以图像读取器的尺寸减小。

    IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
    12.
    发明申请
    IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD 审中-公开
    图像形成装置和图像形成方法

    公开(公告)号:US20080175622A1

    公开(公告)日:2008-07-24

    申请号:US11626494

    申请日:2007-01-24

    Abstract: An image forming apparatus in the present invention includes an automatic document feeder (ADF) for carrying an original document, a scanner unit and a printer unit, the scanner unit includes a carriage having a light source unit for exposing and scanning the original document and is capable of operating in a first reading mode (sheet-through system) for reading image information of the original document carried by the ADF with the carriage fixed and a second reading mode (platen system) for reading the image information of the original document by moving the carriage. When reading the original document, the scanning velocity is controlled, the reading resolution of the original document in the first reading mode is set to be lower than the resolution of image formation by the printer unit, and the reading resolution of the original document in the second reading mode is controlled to be substantially equal to the resolution of image formation by the printer unit. There is provided an image processing unit for performing image conversion for the image information read by the scanner unit according to the reading magnification.

    Abstract translation: 本发明的图像形成装置包括:用于承载原稿的自动送纸器(ADF),扫描单元和打印机单元,扫描单元包括具有用于曝光和扫描原稿的光源单元的滑架, 能够以第一读取模式(通过系统)操作,用于读取由固定的托架的ADF携带的原始文档的图像信息;以及第二读取模式(压板系统),用于通过移动来读取原始文档的图像信息 马车。 当读取原始文档时,扫描速度被控制,原始文档在第一读取模式下的读取分辨率被设置为低于由打印机单元形成图像的分辨率,并且原始文档的读取分辨率在 第二读取模式被控制为与打印机单元的图像形成的分辨率基本相等。 提供了一种图像处理单元,用于根据读取倍率对由扫描单元读取的图像信息执行图像转换。

    Image-reading apparatus
    13.
    发明授权
    Image-reading apparatus 有权
    图像读取装置

    公开(公告)号:US07304772B2

    公开(公告)日:2007-12-04

    申请号:US10383679

    申请日:2003-03-10

    Inventor: Yusuke Hashizume

    Abstract: In an image-reading apparatus, the size of a document placed at a predetermined position is sensed by a document size sensor, an image is read from the document in the document size sensed, and image data indicative of the read image is subjected to certain processing executed by an image processing section. A power supply section is provided which includes a first power supply which supplies power to the image processing section, and a second power supply which supplies power to the document size sensor. The second power supply is supplied with power from the first power supply and can be turned on and off independently of turn-on and turn-off of the first power supply. A power supply control section is also provided which controls turn-on and turn-off of the second power supply.

    Abstract translation: 在图像读取装置中,放置在预定位置的文件尺寸由文件尺寸传感器感测,在所检测到的文档尺寸中从文档读取图像,并且指示所读取的图像的图像数据被确定 由图像处理部执行的处理。 提供电源部分,其包括向图像处理部分供电的第一电源和向文档尺寸传感器供电的第二电源。 第二个电源由第一个电源提供电源,可独立于第一个电源的开启和关闭而导通和关断。 还提供控制第二电源的接通和断开的电源控制部分。

    Image reading apparatus and image reading method
    14.
    发明授权
    Image reading apparatus and image reading method 失效
    图像读取装置和图像读取方法

    公开(公告)号:US07274493B2

    公开(公告)日:2007-09-25

    申请号:US11110773

    申请日:2005-04-21

    Inventor: Yusuke Hashizume

    Abstract: Where a magnification (enlargement/reduction of image) has been set through operation keys of an operation panel, a main CPU sends information on read magnification to a scanner CPU of a scanner section. In this case, where the magnification is not set in particular, information of 100% magnification is sent to the scanner CPU. Based on a microstep division number of a step angle corresponding to the received information on read magnification, the scanner CPU controls the driving of a scan motor via a scan motor driver.

    Abstract translation: 在通过操作面板的操作键设置放大(放大/缩小图像)的情况下,主CPU将读取放大率的信息发送到扫描仪部分的扫描器CPU。 在这种情况下,在没有特别设定放大率的情况下,向扫描器CPU发送100%放大率的信息。 基于与读取倍率上的接收信息对应的步进角度的微步划分数,扫描器CPU通过扫描电动机驱动器控制扫描电动机的驱动。

    Image copier and image copying method
    15.
    发明申请
    Image copier and image copying method 审中-公开
    图像复印机和图像复印方法

    公开(公告)号:US20070201918A1

    公开(公告)日:2007-08-30

    申请号:US11365332

    申请日:2006-02-28

    CPC classification number: G03G15/607

    Abstract: An image copier of the invention includes a document table to position a document from which an image is read, a document holding cover to hold the document on the document table, a light source to irradiate light to the document when the image of the document is read, and an image reading light receiving element to receive reflected light from the document, and the document holding cover includes a document size detecting light emitting element to emit light at a time of document size detection. According to the image copier of the invention, the document size can be accurately detected independently of the kind of the document.

    Abstract translation: 本发明的图像复印机包括用于定位从中读取图像的文档的文档表,用于将文档保持在文档表上的文档保持盖,当文档的图像是文档时将光照射到文档的光源 读取和图像读取光接收元件以接收来自原稿的反射光,并且原稿保持盖包括在文档尺寸检测时发光的原稿尺寸检测发光元件。 根据本发明的图像复印机,可以独立于文档的种类来准确地检测文档尺寸。

    Image reader for use in image forming apparatus

    公开(公告)号:US07133167B2

    公开(公告)日:2006-11-07

    申请号:US10921846

    申请日:2004-08-20

    Abstract: An image reader of the present invention comprises a fluctuation detector that can be connected to the external equipment by means of an image data input-output section, and can subject image data, continuous in a first direction and outputted as image information on a test chart is photoelectrically converted by means of a CCD sensor when a mirror set or the test chart is moved in the first direction, to Fourier conversion, thereby obtaining the frequency of a fluctuation of the obtained image data and a maximum value of the amplitude thereof. If the obtained maximum value of the fluctuation amplitude is greater than a given value, the fluctuation detector is used to compare the frequency of the fluctuation and the natural frequency of a drive motor for generating driving force for moving the mirror set or the image. If the fluctuation frequency and the natural frequency are not equal, the value of current supplied to the drive motor is increased.

    Image reading apparatus
    17.
    发明申请
    Image reading apparatus 审中-公开
    图像读取装置

    公开(公告)号:US20050206974A1

    公开(公告)日:2005-09-22

    申请号:US10805316

    申请日:2004-03-22

    CPC classification number: H04N1/00885 H04N1/00891 H04N2201/0081

    Abstract: An image reading apparatus for reading a document image to provide image data corresponding thereto, including a photoelectric conversion unit which converts a light-received image into an image signal, a photoelectric conversion unit which converts an optical image on a document into an image signal, an image processing unit which processes the image signal outputted from the photoelectric conversion unit, and provides the image data, a power source unit which supplies power to respective units including the photoelectric conversion units and the image processing unit of the image reading apparatus, and a power supply control unit which controls power supply from the power source unit to the photoelectric conversion unit.

    Abstract translation: 一种用于读取文件图像以提供对应于其的图像数据的图像读取装置,包括将光接收图像转换为图像信号的光电转换单元,将文档上的光学图像转换为图像信号的光电转换单元, 图像处理单元,处理从光电转换单元输出的图像信号,并提供图像数据;向包括图像读取装置的光电转换单元和图像处理单元的各个单元供电的电源单元,以及 电源控制单元,其控制从电源单元到光电转换单元的电力供应。

    Image reading apparatus and image reading method
    18.
    发明授权
    Image reading apparatus and image reading method 失效
    图像读取装置和图像读取方法

    公开(公告)号:US06816288B1

    公开(公告)日:2004-11-09

    申请号:US09708438

    申请日:2000-11-09

    Inventor: Yusuke Hashizume

    Abstract: Where a magnification (enlargement/reduction of image) has been set through operation keys of an operation panel, a main CPU sends information on read magnification to a scanner CPU of a scanner section. In this case, where the magnification is not set in particular, information of 100% magnification is sent to the scanner CPU. Based on a microstep division number of a step angle corresponding to the received information on read magnification, the scanner CPU controls the driving of a scan motor via a scan motor driver.

    Image copier and image copying method
    19.
    发明授权
    Image copier and image copying method 失效
    图像复印机和图像复印方法

    公开(公告)号:US08253992B2

    公开(公告)日:2012-08-28

    申请号:US12830220

    申请日:2010-07-02

    CPC classification number: H04N1/4095

    Abstract: An image copier according to the invention comprises a scanner for reading an image and a printer for forming an image on sheet, and the scanner includes a document table for positioning an original document from which an image is to be read; a document holding cover holding the original document on the original document table and having a light-emitting element for detecting the size of an original document which emits light when the size of the original document is detected, a light source for irradiating the original document with light when an image on the original document is read, a light-receiving element for image reading which receives reflected light from the original document, a controller for the light-emitting element for detecting the size of an original document which controls the light-emitting element for detecting the thickness of the original document, a specific region determination unit for identifying a specific region based on the numbers of pixels in a main scanning direction and a sub scanning direction of image data, and a background correction unit for performing a process of correcting the background of an image which has been read. In the image copier according to the invention, see-through copying of the bottom side can be suppressed by performing a background correction process after an image is read without blocking a sensor hole of a sensor for detecting the size of the original document from light.

    Abstract translation: 根据本发明的图像复印机包括用于读取图像的扫描仪和用于在纸上形成图像的打印机,并且扫描仪包括用于定位要从中读取图像的原稿的原稿台; 原稿保持盖,将原稿保持在原稿台上,并具有发光元件,用于检测当检测到原稿的尺寸时发光的原稿的尺寸;用于将原稿的照射光源 读取原稿上的图像时的光,用于接收来自原始文档的反射光的图像读取用光接收元件,用于检测控制发光的原稿的原稿尺寸的发光元件的控制器 用于检测原稿厚度的元件,用于基于图像数据的主扫描方向和副扫描方向上的像素数来识别特定区域的特定区域确定单元,以及用于执行图像数据的处理的背景校正单元 校正已读取的图像的背景。 在根据本发明的图像复印机中,通过在读取图像之后执行背景校正处理可以抑制底侧的透视复制,而不会阻挡用于检测原稿尺寸的传感器的传感器孔的光。

    Image forming apparatus and image forming method specifying read start position of white reference plate
    20.
    发明授权
    Image forming apparatus and image forming method specifying read start position of white reference plate 有权
    图像形成装置和指定白色参考板的读取开始位置的图像形成方法

    公开(公告)号:US08094345B2

    公开(公告)日:2012-01-10

    申请号:US11786548

    申请日:2007-04-12

    Inventor: Yusuke Hashizume

    Abstract: An image forming apparatus to generate image data from an original document and to form an image includes a photoelectric conversion unit to sequentially convert an image of the original document scanned in a sub-scanning direction into image signals made of a plurality of pixels constituting one line in a main scanning direction, a white reference plate which is white reference for the image signals, a white reference signal generation unit to generate a white reference signal from image signals obtained by photoelectric converting an image for a given number of lines from a given read start position of the white reference plate in the sub-scanning direction by the photoelectric conversion unit, a shading correction unit to correct the image signals of the original document image photoelectric converted by the photoelectric conversion unit based on the white reference signal, and a read start position acquisition unit to calculate and acquire the read start position on the white reference plate, and the read start position acquisition unit includes a start position calculation unit to detect a portion of the white reference plate where brightness is within a given range and to calculate the read start position.

    Abstract translation: 一种用于从原始文档生成图像数据并形成图像的图像形成装置包括光电转换单元,其将在副扫描方向上扫描的原稿的图像顺序地转换成由构成一行的多个像素构成的图像信号 在主扫描方向上,作为图像信号的白色基准的白色基准板,白色参考信号生成单元,用于根据从给定读数对给定行数进行光电转换的图像信号生成白色参考信号 通过光电转换单元在副扫描方向上的白色参考板的开始位置,阴影校正单元,用于校正基于白色参考信号由光电转换单元光电转换的原始文档图像的图像信号,以及读取 起始位置获取单元计算并获取白色参考的读取开始位置 读取开始位置获取单元包括开始位置计算单元,用于检测亮度在给定范围内的白色参考板的一部分,并计算读取的开始位置。

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