公开(公告)号：US20130002790A1

公开(公告)日：2013-01-03

申请号：US13523340

申请日：2012-06-14

申请人： Noriyuki Chino ,  Katsuhiko Takano ,  Masaaki Naoi ,  Shingo Horita ,  Takeshi Uchida

发明人： Noriyuki Chino ,  Katsuhiko Takano ,  Masaaki Naoi ,  Shingo Horita ,  Takeshi Uchida

IPC分类号： B41J2/435

CPC分类号： G02B26/127 ,  G03G15/043

摘要： An image forming apparatus improved in the accuracy of detecting a time period over which a laser beam is scanned. A laser beam emitted from a laser light source is deflected by a polygon mirror such that the laser beam scans a photosensitive drum. The deflected laser beam is guided onto the photosensitive drum via an imaging lens. A mode hop detection unit detects a mode hop of the laser beam. An image pulse generation section detects a main scanning magnification of an electrostatic latent image formed on the photosensitive drum. When a mode hop is detected, the main scanning magnification in a next scanning cycle is corrected using a correction value stored in a storage unit and used most lately, whereas when no wavelength variation has not detected, the main scanning magnification in the next scanning cycle is corrected using the latest correction value.

摘要翻译： 一种图像形成装置提高了检测激光束被扫描的时间段的精度。 从激光光源发射的激光束被多面镜偏转，使得激光束扫描感光鼓。 偏转的激光束经由成像透镜被引导到感光鼓上。 模式跳跃检测单元检测激光束的模式跳跃。 图像脉冲产生部分检测形成在感光鼓上的静电潜像的主扫描倍率。 当检测到模式跳跃时，使用存储在存储单元中并最近使用的校正值来校正下一个扫描周期中的主扫描倍率，而当没有检测到波长变化时，在下一个扫描周期中的主扫描倍率 使用最新的校正值进行校正。

公开(公告)号：US08963970B2

公开(公告)日：2015-02-24

申请号：US13523340

申请日：2012-06-14

申请人： Noriyuki Chino ,  Katsuhiko Takano ,  Masaaki Naoi ,  Shingo Horita ,  Takeshi Uchida

发明人： Noriyuki Chino ,  Katsuhiko Takano ,  Masaaki Naoi ,  Shingo Horita ,  Takeshi Uchida

IPC分类号： B41J2/385 ,  B41J2/435 ,  G02B26/12 ,  G03G15/043

CPC分类号： G02B26/127 ,  G03G15/043

摘要： An image forming apparatus improved in the accuracy of detecting a time period over which a laser beam is scanned. A laser beam emitted from a laser light source is deflected by a polygon mirror such that the laser beam scans a photosensitive drum. The deflected laser beam is guided onto the photosensitive drum via an imaging lens. A mode hop detection unit detects a mode hop of the laser beam. An image pulse generation section detects a main scanning magnification of an electrostatic latent image formed on the photosensitive drum. When a mode hop is detected, the main scanning magnification in a next scanning cycle is corrected using a correction value stored in a storage unit and used most lately, whereas when no wavelength variation has not detected, the main scanning magnification in the next scanning cycle is corrected using the latest correction value.

摘要翻译： 一种图像形成装置提高了检测激光束被扫描的时间段的精度。 从激光光源发射的激光束被多面镜偏转，使得激光束扫描感光鼓。 偏转的激光束经由成像透镜被引导到感光鼓上。 模式跳跃检测单元检测激光束的模式跳跃。 图像脉冲产生部分检测形成在感光鼓上的静电潜像的主扫描倍率。 当检测到模式跳跃时，使用存储在存储单元中并最近使用的校正值来校正下一个扫描周期中的主扫描倍率，而当没有检测到波长变化时，在下一个扫描周期中的主扫描倍率 使用最新的校正值进行校正。

公开(公告)号：US20110199417A1

公开(公告)日：2011-08-18

申请号：US13095682

申请日：2011-04-27

申请人： Masaaki Naoi ,  Kota Kiyama ,  Shoji Kanemura ,  Noriyuki Chino

发明人： Masaaki Naoi ,  Kota Kiyama ,  Shoji Kanemura ,  Noriyuki Chino

IPC分类号： B41J29/38

CPC分类号： G03G15/305 ,  B41J11/008 ,  B41J11/0095 ,  B41J13/08 ,  G03G2215/00599 ,  G03G2215/00945 ,  G03G2215/0141

摘要： A recording apparatus includes a recording unit configured to record images on a recording medium of a roll-type, the recording unit including a plurality of line-type recording heads, a first conveyance roller, located at an upstream side of the plurality of line-type recording heads, a second conveyance roller, located at a downstream side of the plurality of line-type recording heads, a first signal generation unit, including a laser doppler speed meter for detecting a surface of the recording medium being conveyed, a second signal generation unit, including a rotary encoder, a correction unit configured to correct the first signal when a period value of the first signal is outside a predetermined range, an information generation unit, and a control unit configured to control recording on the recording medium based on the variation information and the second signal so as to suppress adverse effects caused by the first conveyance roller.

摘要翻译： 一种记录装置，包括记录单元，被配置为将图像记录在辊型记录介质上，所述记录单元包括多个线型记录头，第一输送辊位于所述多个线型记录头的上游侧， 位于多个行式记录头的下游侧的第二传送辊，第一信号生成单元，包括用于检测被传送的记录介质的表面的激光多普勒速度计，第二信号 生成单元，包括旋转编码器，配置为当第一信号的周期值在预定范围之外时校正第一信号的校正单元，信息生成单元和控制单元，被配置为基于 变化信息和第二信号，以便抑制由第一输送辊引起的不利影响。

公开(公告)号：US08608274B2

公开(公告)日：2013-12-17

申请号：US13095682

申请日：2011-04-27

申请人： Masaaki Naoi ,  Kota Kiyama ,  Shoji Kanemura ,  Noriyuki Chino

发明人： Masaaki Naoi ,  Kota Kiyama ,  Shoji Kanemura ,  Noriyuki Chino

IPC分类号： B41J29/38 ,  B41J2/01

CPC分类号： G03G15/305 ,  B41J11/008 ,  B41J11/0095 ,  B41J13/08 ,  G03G2215/00599 ,  G03G2215/00945 ,  G03G2215/0141

摘要： A recording apparatus includes a recording unit configured to record images on a recording medium of a roll-type, the recording unit including a plurality of line-type recording heads, a first conveyance roller, located at an upstream side of the plurality of line-type recording heads, a second conveyance roller, located at a downstream side of the plurality of line-type recording heads, a first signal generation unit, including a laser doppler speed meter for detecting a surface of the recording medium being conveyed, a second signal generation unit, including a rotary encoder, a correction unit configured to correct the first signal when a period value of the first signal is outside a predetermined range, an information generation unit, and a control unit configured to control recording on the recording medium based on the variation information and the second signal so as to suppress adverse effects caused by the first conveyance roller.

摘要翻译： 一种记录装置，包括记录单元，被配置为将图像记录在辊型记录介质上，所述记录单元包括多个线型记录头，第一输送辊位于所述多个线型记录头的上游侧， 位于多个行式记录头的下游侧的第二传送辊，第一信号生成单元，包括用于检测被传送的记录介质的表面的激光多普勒速度计，第二信号 生成单元，包括旋转编码器，配置为当第一信号的周期值在预定范围之外时校正第一信号的校正单元，信息生成单元和控制单元，被配置为基于 变化信息和第二信号，以便抑制由第一输送辊引起的不利影响。

公开(公告)号：US07959248B2

公开(公告)日：2011-06-14

申请号：US12163604

申请日：2008-06-27

申请人： Masaaki Naoi ,  Kota Kiyama ,  Shoji Kanemura ,  Noriyuki Chino

发明人： Masaaki Naoi ,  Kota Kiyama ,  Shoji Kanemura ,  Noriyuki Chino

IPC分类号： B41J29/38 ,  B41J2/01

CPC分类号： G03G15/305 ,  B41J11/008 ,  B41J11/0095 ,  B41J13/08 ,  G03G2215/00599 ,  G03G2215/00945 ,  G03G2215/0141

摘要： A recording apparatus includes a recording unit configured to record an image on a recording medium, a roller configured to convey the recording medium, a first signal generation unit configured to generate a first period signal according to a movement of the recording medium, a second signal generation unit configured to generate a second period signal according to a rotation of the roller, a correction unit configured to correct the first period signal when a period value of the first period signal is outside a predetermined range, an information generation unit configured to generate variation information of a moving speed of the recording medium based on the first period signal, and a control unit configured to control recording on the recording medium based on the variation information and the second period signal.

摘要翻译： 记录装置包括：记录单元，被配置为在记录介质上记录图像，被配置为传送记录介质的辊;第一信号生成单元，被配置为根据记录介质的移动产生第一周期信号，第二信号 生成单元，被配置为根据所述辊的旋转生成第二周期信号;校正单元，被配置为当所述第一周期信号的周期值在预定范围之外时校正所述第一周期信号;信息生成单元，被配置为生成变化 基于第一周期信号的记录介质的移动速度的信息;以及控制单元，被配置为基于变化信息和第二周期信号在记录介质上控制记录。

公开(公告)号：US20090003854A1

公开(公告)日：2009-01-01

申请号：US12163604

申请日：2008-06-27

申请人： Masaaki Naoi ,  Kota Kiyama ,  Shoji Kanemura ,  Noriyuki Chino

发明人： Masaaki Naoi ,  Kota Kiyama ,  Shoji Kanemura ,  Noriyuki Chino

IPC分类号： G03G13/00

CPC分类号： G03G15/305 ,  B41J11/008 ,  B41J11/0095 ,  B41J13/08 ,  G03G2215/00599 ,  G03G2215/00945 ,  G03G2215/0141

摘要： A recording apparatus includes a recording unit configured to record an image on a recording medium, a roller configured to convey the recording medium, a first signal generation unit configured to generate a first period signal according to a movement of the recording medium, a second signal generation unit configured to generate a second period signal according to a rotation of the roller, a correction unit configured to correct the first period signal when a period value of the first period signal is outside a predetermined range, an information generation unit configured to generate variation information of a moving speed of the recording medium based on the first period signal, and a control unit configured to control recording on the recording medium based on the variation information and the second period signal.

摘要翻译： 记录装置包括：记录单元，被配置为在记录介质上记录图像，被配置为传送记录介质的辊;第一信号生成单元，被配置为根据记录介质的移动产生第一周期信号;第二信号 生成单元，被配置为根据所述辊的旋转生成第二周期信号;校正单元，被配置为当所述第一周期信号的周期值在预定范围之外时校正所述第一周期信号;信息生成单元，被配置为生成变化 基于第一周期信号的记录介质的移动速度的信息;以及控制单元，被配置为基于变化信息和第二周期信号在记录介质上控制记录。

公开(公告)号：US20100295917A1

公开(公告)日：2010-11-25

申请号：US12785385

申请日：2010-05-21

申请人： Noriyuki Chino ,  Yuji Uramoto ,  Shoji Kanemura ,  Kota Kiyama ,  Junji Yasuda ,  Katsuhiko Takano ,  Yoshinobu Sekiguchi ,  Noboru Koumura

发明人： Noriyuki Chino ,  Yuji Uramoto ,  Shoji Kanemura ,  Kota Kiyama ,  Junji Yasuda ,  Katsuhiko Takano ,  Yoshinobu Sekiguchi ,  Noboru Koumura

IPC分类号： B41J2/435

CPC分类号： B41J2/473 ,  G02B26/127 ,  G06K15/1219

摘要： An image forming apparatus capable of enhancing the accuracy of the scanning position of a laser beam to thereby obtain a more precise image. Optical sensors detect reflected light from a surface of a photosensitive drum. During image formation, the apparatus detects the scanning speed of the laser beam in a main scanning direction based on detection signals from the respective optical sensors in each of divisional sections of an image forming area in the main scanning direction. The apparatus corrects magnification of the image in the main scanning direction, based on results of detection of the scanning speed of the laser beam in the main scanning direction.

摘要翻译： 一种图像形成装置，其能够提高激光束的扫描位置的精度，从而获得更精确的图像。 光学传感器检测来自感光鼓表面的反射光。 在图像形成期间，该装置基于来自主扫描方向上的图像形成区域的每个分割部分中的各个光学传感器的检测信号，在主扫描方向上检测激光束的扫描速度。 该装置基于在主扫描方向上的激光束的扫描速度的检测结果来校正图像在主扫描方向上的放大率。

公开(公告)号：US08400488B2

公开(公告)日：2013-03-19

申请号：US13187095

申请日：2011-07-20

申请人： Noriyuki Chino ,  Katsuhiko Takano ,  Shoji Kanemura ,  Junji Yasuda ,  Kota Kiyama

发明人： Noriyuki Chino ,  Katsuhiko Takano ,  Shoji Kanemura ,  Junji Yasuda ,  Kota Kiyama

IPC分类号： B41J2/435 ,  B41J2/47

CPC分类号： B41J2/473 ,  G02B26/127 ,  G06K15/1219

摘要： An optical scanning apparatus capable of properly correcting a main scanning scale factor. Upstream and downstream laser-light detection sensors of the optical scanning apparatus each generate a signal when first or second light beam passes through each of slits formed in the sensors. Based on signals, a scanning time required for each light beam to scan between the sensors is measured. A correction coefficient is decided by a correction value calculation unit based on a difference between wavelengths of the first and second light beams, a scanning time difference is calculated by a comparison unit based on the correction coefficient and scanning times of the light beams, and the downstream laser-light detection sensor is rotated by a sensor rotation drive unit to make the scanning time difference zero, whereby the slits are made parallel to each other.

摘要翻译： 一种能够适当地校正主扫描比例因子的光学扫描装置。 当第一或第二光束通过形成在传感器中的每个狭缝时，光学扫描装置的上游和下游激光检测传感器各自产生信号。 基于信号，测量每个光束在传感器之间扫描所需的扫描时间。 校正系数由校正值计算单元基于第一和第二光束的波长之间的差异来确定，通过比较单元基于校正系数和光束的扫描时间来计算扫描时间差，并且 下游激光检测传感器被传感器旋转驱动单元旋转以使扫描时间差为零，从而使狭缝彼此平行。

公开(公告)号：US08517499B2

公开(公告)日：2013-08-27

申请号：US12277925

申请日：2008-11-25

申请人： Katsuhiko Takano ,  Makoto Shihoh ,  Shoji Kanemura ,  Hiroyasu Nomura ,  Katsumasa Nishikawa ,  Shigeo Takenaka ,  Manabu Sueoka ,  Junji Yasuda ,  Noriyuki Chino

发明人： Katsuhiko Takano ,  Makoto Shihoh ,  Shoji Kanemura ,  Hiroyasu Nomura ,  Katsumasa Nishikawa ,  Shigeo Takenaka ,  Manabu Sueoka ,  Junji Yasuda ,  Noriyuki Chino

IPC分类号： B41J29/377

CPC分类号： B41J2/515 ,  B41J2/1408 ,  B41J2/15 ,  B41J2/155 ,  B41J2202/19 ,  B41J2202/20

摘要： A temperature rise of a head due to a printing operation with a higher speed and a higher density is suppressed. To realize this, an inkjet printing head is provided in which a plurality of printing element substrates having an ejection opening array consisting of a plurality of ejection openings for ejecting ink are arranged on a support plate in a direction of the ejection opening array. The support plate includes therein a heat pipe and a flow path through which cooling liquid is flowed.

摘要翻译： 抑制由于具有更高速度和更高密度的打印操作而引起的头部的温度升高。 为了实现这一点，提供一种喷墨打印头，其中具有由多个用于喷射墨的喷射口组成的喷射口阵列的多个打印元件基板沿着喷射口阵列的方向布置在支撑板上。 支撑板包括热管和冷却液流过的流路。

公开(公告)号：US08259145B2

公开(公告)日：2012-09-04

申请号：US12785385

申请日：2010-05-21

申请人： Noriyuki Chino ,  Yuji Uramoto ,  Shoji Kanemura ,  Kota Kiyama ,  Junji Yasuda ,  Katsuhiko Takano ,  Yoshinobu Sekiguchi ,  Noboru Koumura

发明人： Noriyuki Chino ,  Yuji Uramoto ,  Shoji Kanemura ,  Kota Kiyama ,  Junji Yasuda ,  Katsuhiko Takano ,  Yoshinobu Sekiguchi ,  Noboru Koumura

IPC分类号： B41J2/47 ,  B41J2/435

CPC分类号： B41J2/473 ,  G02B26/127 ,  G06K15/1219

摘要： An image forming apparatus capable of enhancing the accuracy of the scanning position of a laser beam to thereby obtain a more precise image. Optical sensors detect reflected light from a surface of a photosensitive drum. During image formation, the apparatus detects the scanning speed of the laser beam in a main scanning direction based on detection signals from the respective optical sensors in each of divisional sections of an image forming area in the main scanning direction. The apparatus corrects magnification of the image in the main scanning direction, based on results of detection of the scanning speed of the laser beam in the main scanning direction.

摘要翻译： 一种图像形成装置，其能够提高激光束的扫描位置的精度，从而获得更精确的图像。 光学传感器检测来自感光鼓表面的反射光。 在图像形成期间，该装置基于来自主扫描方向上的图像形成区域的每个分割部分中的各个光学传感器的检测信号，在主扫描方向上检测激光束的扫描速度。 该装置基于在主扫描方向上的激光束的扫描速度的检测结果来校正图像在主扫描方向上的放大率。