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    • 2. 发明授权
    • Image reading apparatus, control method therefor, and program
    • 图像读取装置及其控制方法及程序
    • US07755805B2
    • 2010-07-13
    • US11925206
    • 2007-10-26
    • Mitsuhiro SugetaKenji Hiromatsu
    • Mitsuhiro SugetaKenji Hiromatsu
    • H04N1/04H04N1/40
    • H04N1/4076H04N1/1017H04N1/1215H04N1/191H04N2201/044
    • An object of this invention is to suppress a decrease in reading efficiency while preventing image degradation. To achieve this object, an image reading apparatus includes a light source which illuminates an object, a sensor which photoelectrically converts light reflected by the object and reads information on the object, a first density reference member which serves as a reference for correcting an image signal obtained by reading an original by the sensor, a second density reference member which is different from the first density reference member, a comparison unit which compares the second signal obtained by reading the second density reference member by the sensor and the third signal obtained by reading again the second density reference member by the sensor, and a correction unit which corrects the image signal on the basis of the first signal obtained by reading the first density reference member by the sensor, and the comparison result of the comparison device.
    • 本发明的一个目的是在防止图像劣化的同时抑制读取效率的降低。 为了实现该目的,图像读取装置包括照射物体的光源,对由物体反射的光进行光电转换并对物体进行信息读取的传感器,作为校正图像信号的基准的第一密度参照部件 通过由传感器读取原稿获得的第二密度参考构件,与第一密度参考构件不同的第二密度参考构件;比较单元,其将通过读取第二密度参考构件获得的第二信号与通过读取获得的第三信号进行比较; 由传感器再次设置第二密度参考构件,以及校正单元,其基于通过由传感器读取第一密度参考构件获得的第一信号和比较装置的比较结果校正图像信号。
    • 3. 发明授权
    • Image scanning apparatus, image scanning method, and program for use in image scanning apparatus
    • 图像扫描装置,图像扫描方法以及用于图像扫描装置的程序
    • US08081357B2
    • 2011-12-20
    • US12270674
    • 2008-11-13
    • Kenji Hiromatsu
    • Kenji Hiromatsu
    • H04N1/46H04N1/387G06K15/00G06T5/00
    • H04N1/58
    • A color image-scanning device has a fixed scan mode and a flow scan mode. In the fixed scan mode, a document is scanned while maintaining the document at a fixed location on a platen glass. In the flow scan mode, a document is fed from an automatic document feeder and is scanned while moving the document. In each of these modes, images are scanned in a main scanning direction and a sub scanning direction. Color registration errors in the main and sub scanning direction caused by an optical factor are corrected in accordance with correction values stored in a memory. Respective correction values for each of the main and sub scanning directions are acquired by scanning a test chart in each of the fixed-scan mode and the flow-scan mode and stored in the memory. Proper correction values are read from the memory depending on the scanning mode selected, and color registration errors are corrected in accordance with the read correction value.
    • 彩色图像扫描装置具有固定扫描模式和流扫描模式。 在固定扫描模式下,扫描文档,同时将文档保持在稿台玻璃上的固定位置。 在流程扫描模式下,文档从自动进纸器进纸,并在移动文档的同时进行扫描。 在这些模式的每一种中,在主扫描方向和副扫描方向上扫描图像。 根据存储在存储器中的校正值来校正由光学系数引起的主副扫描方向的颜色配准误差。 通过扫描固定扫描模式和流扫描模式中的每一个并存储在存储器中的测试图来获取主扫描和副扫描方向中的每一个的各个校正值。 根据所选择的扫描模式从存储器读取适当的校正值,并且根据读取的校正值校正颜色配准误差。
    • 5. 发明授权
    • Image sensor and image reading apparatus
    • 图像传感器和图像读取装置
    • US07477432B2
    • 2009-01-13
    • US11459150
    • 2006-07-21
    • Kenji Hiromatsu
    • Kenji Hiromatsu
    • H04N1/46
    • H04N1/486
    • An object of this invention is to provide a structure which meets a high-quality reading requirement and realize high-speed color reading when the reading section of a color image forming apparatus adopts a color contact image sensor using CCDs as reading elements. In order to achieve this object, the image sensor of a color image reading section uses a color contact image sensor in which a plurality of CCDs are aligned as reading elements in the main scanning direction. In this case, each CCD has one analog shift register for RGB time-division reading, and three R, G, and B reading apertures arranged parallel to each other at a pitch corresponding to the reading resolution. The pixel pitch in the main scanning direction is constant.
    • 本发明的目的是提供一种满足高质量读取需求并且当彩色图像形成装置的读取部分采用使用CCD作为读取元件的彩色接触式图像传感器时实现高速彩色读取的结构。 为了实现该目的,彩色图像读取部的图像传感器使用其中多个CCD被排列为主扫描方向的读取元件的彩色接触图像传感器。 在这种情况下,每个CCD具有用于RGB时分读取的一个模拟移位寄存器,并且以对应于读取分辨率的音调彼此平行布置的三个R,G和B读取孔。 主扫描方向的像素间距恒定。
    • 7. 发明申请
    • Printing apparatus, information processing apparatus, and image printing system
    • 印刷装置,信息处理装置和图像打印系统
    • US20050214017A1
    • 2005-09-29
    • US11084125
    • 2005-03-21
    • Yoshinori IsobeKoji DoiKenji HiromatsuMasashi OyumiYukimasa Iseki
    • Yoshinori IsobeKoji DoiKenji HiromatsuMasashi OyumiYukimasa Iseki
    • B41J29/38B41J13/10B41J29/00G03G15/00G06F3/12
    • G06F3/1241B41J13/106G03G15/5087G03G2215/00426G06F3/1203G06F3/1264G06F3/1285
    • An apparatus for executing a printing process on the basis of a print job from an external apparatus, comprises a post-processing unit which can apply post-processing for printed paper sheets using paper sheets prepared independently of the printed paper sheets; a detector for detecting in the post-processing means that the paper sheets prepared independently of the printed paper sheets are set; determination means for determining whether or not print start trigger information is attached to the print job, which indicates an instruction to start printing in response to trigger information to start printing; and print control means for, (i) when a print job designated with the post-processing by the post-processing unit is received and it is determined that the print start trigger information is attached to the received print job, delaying a process of the print job until the detector detects that the paper sheets are set, and starting execution of the print job when the detector detects that the paper sheets are set, (ii) and when a print job designated with the post-processing by the post-processing unit is received and it is determined that the print start trigger information is not attached to the received print job, starting the received print job independently of a detection by the detector.
    • 一种用于根据来自外部设备的打印作业来执行打印处理的设备,包括后处理单元,其可以使用独立于所述打印纸张片制作的纸张对所打印的纸张进行后处理; 用于在后处理装置中检测独立于打印的纸张而制备的纸张的检测器; 确定装置,用于确定打印开始触发信息是否附加到打印作业,其指示响应于触发信息开始打印而开始打印的指令; 以及打印控制装置,用于(i)当接收到由后处理单元进行的后处理指定的打印作业并且确定打印开始触发信息附加到接收到的打印作业时,延迟处理 打印作业直到检测器检测到纸张被设置,并且当检测器检测到纸张被设置时开始执行打印作业,(ii)当通过后处理指定的后处理指定的打印作业 接收到单元,并且确定打印开始触发信息未附加到接收到的打印作业,独立于检测器的检测开始接收到的打印作业。
    • 9. 发明授权
    • Beam recording with scanning speed change due to F..theta. lens
characteristics
    • 光束记录与扫描速度由于F.θ透镜特性而改变
    • US5241330A
    • 1993-08-31
    • US769299
    • 1991-10-01
    • Motonobu KawabataKenji Hiromatsu
    • Motonobu KawabataKenji Hiromatsu
    • G02B13/00G02B26/12H04N1/053H04N1/113H04N1/12H04N1/401
    • G02B26/127G02B13/0005H04N1/053H04N1/4015H04N1/1135H04N1/12H04N2201/0471H04N2201/04772
    • An image recording apparatus modulates a laser beam based on an image signal and a reference clock, and then controls a polygon mirror to irradiate the laser beam on a surface of a photosensitive material. A reference clock generating circuit generates a reference clock having a frequency in proportion to a main scanning speed of a beam spot which is changed during each scanning due to a characteristic of an f.multidot..theta. lens. The reference clock generating circuit includes a line memory which has a bit per address and stores a relationship between an incident angle .theta. of the laser beam on the f.multidot..theta. lens and an image height of the whole valid scanning area, an address counter for designating the addresses serially at a fixed speed so that the data stored in the line memory can be read out address by address serially from a starting point to a finishing point of the valid scanning area, a waveform shaping circuit for generating a clock pulse from the bit data from the line memory, and a multiplying circuit for multiplying a frequency of the clock pulse by an integer of no less than 2.
    • 图像记录装置基于图像信号和参考时钟对激光束进行调制,然后控制多面镜将激光束照射在感光材料的表面上。 参考时钟产生电路产生参考时钟,其具有与每次扫描期间由于fxθ透镜的特性而改变的束斑的主扫描速度成比例的频率。 参考时钟产生电路包括行存储器,该行存储器具有位地址并存储激光束在fxθ透镜上的入射角度θ与整个有效扫描区域的图像高度之间的关系,地址计数器用于指定 以固定的速度串行寻址,使得存储在行存储器中的数据可以通过地址从有效扫描区域的起始点到终点读取地址;波形整形电路,用于从位数据产生时钟脉冲 以及用于将时钟脉冲的频率乘以不小于2的整数的乘法电路。
    • 10. 发明授权
    • Image scanning apparatus, image scanning method, and program for use in image scanning apparatus
    • 图像扫描装置,图像扫描方法以及用于图像扫描装置的程序
    • US07460284B2
    • 2008-12-02
    • US10844767
    • 2004-05-12
    • Kenji Hiromatsu
    • Kenji Hiromatsu
    • H04N1/46
    • H04N1/58
    • A color image-scanning device has a fixed scan mode and a flow scan mode. In the fixed scan mode, a document is scanned while maintaining the document at a fixed location on a platen glass. In the flow scan mode, a document is fed from an automatic document feeder and is scanned while moving the document. In each of these modes, images are scanned in a main scanning direction and a sub scanning direction. Color registration errors in the main and sub scanning direction caused by an optical factor are corrected in accordance with correction values stored in a memory. Respective correction values for each of the main and sub scanning directions are acquired by scanning a test chart in each of the fixed-scan mode and the flow-scan mode and stored in the memory. Proper correction values are read from the memory depending on the scanning mode selected, and color registration errors are corrected in accordance with the read correction value.
    • 彩色图像扫描装置具有固定扫描模式和流扫描模式。 在固定扫描模式下,扫描文档,同时将文档保持在稿台玻璃上的固定位置。 在流程扫描模式下,文档从自动进纸器进纸,并在移动文档的同时进行扫描。 在这些模式的每一种中,在主扫描方向和副扫描方向上扫描图像。 根据存储在存储器中的校正值来校正由光学系数引起的主副扫描方向的颜色配准误差。 通过扫描固定扫描模式和流扫描模式中的每一个并存储在存储器中的测试图来获取主扫描和副扫描方向中的每一个的各个校正值。 根据所选择的扫描模式从存储器读取适当的校正值,并且根据读取的校正值校正颜色配准误差。