公开(公告)号：US08342628B2

公开(公告)日：2013-01-01

申请号：US12553195

申请日：2009-09-03

申请人： Yoichi Ito ,  Akiyoshi Tanaka ,  Tsuguyori Kemma

发明人： Yoichi Ito ,  Akiyoshi Tanaka ,  Tsuguyori Kemma

IPC分类号： B41J29/38 ,  G03G15/02

CPC分类号： G03G15/101 ,  G03G15/6564 ,  G03G2215/00721

摘要： An image forming apparatus including a carriage including image forming units, the carriage driven reciprocally in a main scanning direction; a conveyance unit to convey a sheet of recording media to a position where the image forming units perform image formation; a first detector provided to the carriage, the first detector including a light emitting part and a light receiving part to periodically detect a surface of the sheet; a calculation unit to calculate a relative amount of movement between the sheet and the image forming units by comparing patterns periodically detected by the first detector; and a control unit to control a timing to perform image formation by the image forming units and an amount of conveyance of the sheet conveyed by the conveyance unit based on a result calculated by the calculation unit.

摘要翻译： 一种图像形成装置，包括：托架，包括图像形成单元，所述托架在主扫描方向上往复地驱动; 传送单元，用于将记录介质片传送到图像形成单元执行图像形成的位置; 提供给托架的第一检测器，所述第一检测器包括发光部分和光接收部分，以周期性地检测所述片材的表面; 计算单元，用于通过比较由第一检测器周期性检测的图案来计算片材和图像形成单元之间的相对移动量; 以及控制单元，其基于由所述计算单元计算的结果来控制由所述图像形成单元执行图像形成的定时和由所述输送单元传送的所述纸张的输送量。

公开(公告)号：US08336987B2

公开(公告)日：2012-12-25

申请号：US12700447

申请日：2010-02-04

申请人： Yoichi Ito ,  Akiyoshi Tanaka ,  Tsuguyori Kemma

发明人： Yoichi Ito ,  Akiyoshi Tanaka ,  Tsuguyori Kemma

IPC分类号： B41J29/13

CPC分类号： B41J19/04

摘要： An image forming apparatus includes a housing, a carriage, and a damping mechanism. The carriage includes an image forming mechanism and moves back and forth in a main scan direction. The damping mechanism generates an impact to suppress vibration caused by movement of the carriage. The damping mechanism suppresses vibration during at least one of acceleration and deceleration of the carriage, and is inactive during movement of the carriage at a constant speed. The damping mechanism suppresses vibration when acceleration of the carriage equals or exceeds a predetermined threshold acceleration. The damping mechanism includes a suppression member and a mass member that strikes the suppression member. The suppression member is at least one of a shock absorber and an elastic member. Shock absorbing characteristics of the shock absorber and elasticity of the elastic member are variable.

摘要翻译： 图像形成装置包括壳体，滑架和阻尼机构。 托架包括图像形成机构，并且在主扫描方向上来回移动。 阻尼机构产生冲击以抑制由滑架的运动引起的振动。 阻尼机构在滑架的加速和减速中的至少一个中抑制振动，并且在滑架以恒定速度移动期间不起作用。 当载物台的加速度等于或超过预定的阈值加速度时，阻尼机构抑制振动。 阻尼机构包括抑制构件和撞击抑制构件的质量构件。 抑制构件是减震器和弹性构件中的至少一个。 减震器的冲击吸收特性和弹性部件的弹性是可变的。

公开(公告)号：US08303077B2

公开(公告)日：2012-11-06

申请号：US12508722

申请日：2009-07-24

申请人： Akiyoshi Tanaka ,  Yoichi Ito ,  Tsuguyori Kemma

发明人： Akiyoshi Tanaka ,  Yoichi Ito ,  Tsuguyori Kemma

IPC分类号： G06F15/00

CPC分类号： B41J29/08 ,  B41J2/175 ,  B41J2/17566

摘要： An image forming apparatus includes a carriage, an image forming unit, a storage unit, a vibration absorber, and a controller. The carriage reciprocally moves in a main scan direction. The image forming unit is mounted on the carriage. The storage unit stores a speed profile of the carriage. The vibration absorber has controllable vibration reduction characteristics to reduce vibration. The controller controls the vibration reduction characteristics of the vibration absorber in accordance with the speed profile.

摘要翻译： 图像形成装置包括滑架，图像形成单元，存储单元，减震器和控制器。 托架沿主扫描方向往复运动。 图像形成单元安装在滑架上。 存储单元存储滑架的速度曲线。 振动吸收器具有可控减振特性，减少振动。 控制器根据速度曲线控制振动吸收器的减振特性。

公开(公告)号：US20100207990A1

公开(公告)日：2010-08-19

申请号：US12700447

申请日：2010-02-04

申请人： Yoichi ITO ,  Akiyoshi Tanaka ,  Tsuguyori Kemma

发明人： Yoichi ITO ,  Akiyoshi Tanaka ,  Tsuguyori Kemma

IPC分类号： B41J2/015

CPC分类号： B41J19/04

摘要： An image forming apparatus includes a housing, a carriage, and a damping mechanism. The carriage includes an image forming mechanism and moves back and forth in a main scan direction. The damping mechanism generates an impact to suppress vibration caused by movement of the carriage. The damping mechanism suppresses vibration during at least one of acceleration and deceleration of the carriage, and is inactive during movement of the carriage at a constant speed. The damping mechanism suppresses vibration when acceleration of the carriage equals or exceeds a predetermined threshold acceleration. The damping mechanism includes a suppression member and a mass member that strikes the suppression member. The suppression member is at least one of a shock absorber and an elastic member. Shock absorbing characteristics of the shock absorber and elasticity of the elastic member are variable.

摘要翻译： 图像形成装置包括壳体，滑架和阻尼机构。 托架包括图像形成机构，并且在主扫描方向上来回移动。 阻尼机构产生冲击以抑制由滑架的运动引起的振动。 阻尼机构在滑架的加速和减速中的至少一个中抑制振动，并且在滑架以恒定速度移动期间不起作用。 当载物台的加速度等于或超过预定的阈值加速度时，阻尼机构抑制振动。 阻尼机构包括抑制构件和撞击抑制构件的质量构件。 抑制构件是减震器和弹性构件中的至少一个。 减震器的冲击吸收特性和弹性部件的弹性是可变的。

公开(公告)号：US20100067938A1

公开(公告)日：2010-03-18

申请号：US12555898

申请日：2009-09-09

申请人： Tsuguyori Kemma ,  Akiyoshi Tanaka ,  Yoichi Ito

发明人： Tsuguyori Kemma ,  Akiyoshi Tanaka ,  Yoichi Ito

IPC分类号： G03G21/20

CPC分类号： G03G15/102 ,  G03G15/50 ,  G03G2215/0658

摘要： An image forming apparatus includes a reciprocally movable carriage, an image forming unit, a first drive source, a vibration suppressor, and a vibration-suppression controller. The reciprocally movable carriage moves in a main scan direction. The image forming unit is mounted on the carriage. The first drive source moves the carriage. The vibration suppressor suppresses vibration caused by movement of the carriage, and includes a vibration suppression member having a mass smaller than a mass of the carriage and a second drive source independent of the first drive source to move the vibration suppression member. The vibration-suppression controller drives the second drive source to cause the vibration suppressor to perform vibration suppression operation during at least one of an acceleration period and a deceleration period of the carriage, and stops movement of the vibration suppression member during a constant-speed period of the carriage.

摘要翻译： 图像形成装置包括可往复运动的托架，图像形成单元，第一驱动源，振动抑制器和振动抑制控制器。 可往复移动的托架沿主扫描方向移动。 图像形成单元安装在滑架上。 第一个驱动源移动滑架。 振动抑制器抑制由滑架移动引起的振动，并且包括具有小于滑架的质量的质量的振动抑制构件和独立于第一驱动源的第二驱动源，以移动振动抑制构件。 振动抑制控制器驱动第二驱动源，使振动抑制器在滑架的加速期间和减速期间中的至少一方中进行振动抑制动作，并且在恒定速度期间停止振动抑制部件的移动 的马车。

公开(公告)号：US08752953B2

公开(公告)日：2014-06-17

申请号：US13286417

申请日：2011-11-01

申请人： Akiyoshi Tanaka ,  Yoichi Ito ,  Kuniyori Takano ,  Hideaki Iijima

发明人： Akiyoshi Tanaka ,  Yoichi Ito ,  Kuniyori Takano ,  Hideaki Iijima

IPC分类号： B41J2/01

CPC分类号： B41J3/60 ,  B41J3/407 ,  B41J11/007

摘要： An image forming apparatus includes a recording head, a conveyance belt, a charger, a reverse passage, and an auxiliary conveyance roller. The belt is looped around at least two rollers to adhere a recording medium thereto by electrostatic force and convey the medium. The belt defines a normal conveyance area in which the medium is conveyed in a first direction. The reverse passage delivers the medium turned around in an area downstream from the belt in the first direction and sends the medium back again to a portion of the belt upstream from the head in the first direction. The reverse passage includes an opposite conveyance area of the belt in which the medium is conveyed in a second direction opposite the first direction. The auxiliary conveyance roller is disposed at least one of an entry part and an exit part of the opposite conveyance area.

摘要翻译： 图像形成装置包括记录头，输送带，充电器，反向通道和辅助输送辊。 皮带围绕至少两个滚子环绕，以通过静电力将记录介质粘附到其上并传送介质。 皮带限定了在第一方向上传送介质的正常输送区域。 反向通道在第一方向上在皮带下游的区域中传送介质，并将介质再次返回到头部沿着第一方向的上游的一部分。 反向通道包括带的相对的传送区域，其中介质沿与第一方向相反的第二方向传送。 辅助传送辊设置在相对传送区域的入口部分和出口部分中的至少一个上。

公开(公告)号：US08573769B2

公开(公告)日：2013-11-05

申请号：US13238034

申请日：2011-09-21

申请人： Akiyoshi Tanaka ,  Yoichi Ito ,  Kuniyori Takano

发明人： Akiyoshi Tanaka ,  Yoichi Ito ,  Kuniyori Takano

IPC分类号： B41J2/01

CPC分类号： B41J13/106

摘要： An image forming apparatus including a conveyance unit to intermittently convey a recording medium in a conveyance direction, a carriage movable in a main scanning direction and including a recording head, a conveyance path having a curved portion provided downstream from an imaging range of the recording head, a first discharge member provided downstream from the imaging range to discharge the recording medium, and a second discharge member provided downstream from the first discharge member and having a nip to sandwich the recording medium to discharge the recording medium. A length of the conveyance path extending from a downstream edge of the imaging range to the nip is longer than a maximum length of the recording medium usable in the image forming apparatus to prevent a leading edge of the recording medium from being sandwiched by the second discharge member when the carriage performs last scanning movement.

摘要翻译： 一种图像形成装置，包括：传送单元，用于沿传送方向间歇地传送记录介质;可在主扫描方向上移动并包括记录头的托架;具有设置在记录头的成像范围下游的弯曲部分的传送路径; 设置在成像范围的下游以排出记录介质的第一排出构件，以及设置在第一排出构件下游并具有夹持夹持记录介质以排出记录介质的第二排出构件。 从成像范围的下游边缘延伸到辊隙的输送路径的长度比可以用于图像形成装置的记录介质的最大长度长，以防止记录介质的前缘被第二次排出 滑架执行上次扫描运动时的成员。

公开(公告)号：US08544983B2

公开(公告)日：2013-10-01

申请号：US13222164

申请日：2011-08-31

申请人： Akiyoshi Tanaka ,  Yoichi Ito ,  Soyoung Park ,  Kuniyori Takano

发明人： Akiyoshi Tanaka ,  Yoichi Ito ,  Soyoung Park ,  Kuniyori Takano

IPC分类号： B41J2/165

CPC分类号： B41J2/185 ,  B41J2/16508 ,  B41J2/16523 ,  B41J2/175 ,  B41J29/38

摘要： An image forming apparatus including: a recording head having a nozzle surface in which nozzles to eject liquid droplets in a horizontal direction or a direction slanted from the horizontal direction are formed, the nozzle surface being disposed in a vertical direction or a direction slanted from the vertical direction; a head tank to supply liquid to the recording head; a suction cap to cap the nozzle surface of the recording head; a suction member connected to the suction cap to suck out liquid from the nozzles by the suction cap; a valve member to open or close a sealed space formed by capping the nozzle surface with the suction cap to atmosphere; a liquid supplier to supply the liquid to the head tank and return the liquid from the head tank; and a control unit to control servicing of the recording head.

摘要翻译： 一种图像形成装置，包括：具有喷嘴表面的记录头，其中形成有沿水平方向或从水平方向倾斜的方向喷射液滴的喷嘴，喷嘴表面沿垂直方向或从该水平方向倾斜的方向 垂直方向 用于向记录头供应液体的头箱; 用于盖住记录头的喷嘴表面的吸嘴; 抽吸构件，其连接到所述抽吸盖，以通过所述抽吸盖从所述喷嘴吸出液体; 阀构件，用于打开或关闭通过将吸嘴盖盖到大气的喷嘴表面而形成的密封空间; 液体供应器，用于将液体供应到头箱并且从头箱返回液体; 以及控制单元，用于控制记录头的维修。

公开(公告)号：US20120056932A1

公开(公告)日：2012-03-08

申请号：US13217431

申请日：2011-08-25

申请人： Mitsuya Matsubara ,  Akiyoshi Tanaka ,  Yoichi Ito ,  Tomomi Katoh ,  Fumitaka Kikkawa ,  Soyoung Park ,  Kunihiro Yamanaka ,  Kazuki Suzuki ,  Kuniyori Takano ,  Honriku Jo ,  Yuji Tanaka ,  Satoshi Endoh

发明人： Mitsuya Matsubara ,  Akiyoshi Tanaka ,  Yoichi Ito ,  Tomomi Katoh ,  Fumitaka Kikkawa ,  Soyoung Park ,  Kunihiro Yamanaka ,  Kazuki Suzuki ,  Kuniyori Takano ,  Honriku Jo ,  Yuji Tanaka ,  Satoshi Endoh

IPC分类号： B41J2/165

CPC分类号： B41J2/16508 ,  B41J2/16523 ,  B41J2/175 ,  B41J2/18 ,  B41J29/38 ,  B41J2002/16594

摘要： An image forming apparatus includes a recording head configured to have a nozzle face on which nozzles that discharge liquid droplets are formed; a cap configured to cap the nozzle face of the recording head; a discharge path configured to be connected to the cap; a suction pump configured to be provided in the discharge path and be made of a tube pump; and an atmosphere opening part configured to open an airtight space, created when the nozzle face is capped by the cap, to the atmosphere. The atmosphere opening part is configured to communicate with the inside of the cap at a position higher than a surface of liquid discharged into the cap, and a check valve configured to prevent a flow of the liquid toward the cap from the suction pump is provided in the discharge path.

摘要翻译： 图像形成装置包括：记录头，被配置为具有喷嘴面，排出液滴的喷嘴形成在喷嘴面上; 盖构造成盖住记录头的喷嘴面; 排出路径，被配置为连接到所述盖; 抽吸泵，其构造成设置在排出路径中并由管式泵构成; 以及气氛打开部，其构造成打开当所述喷嘴面被所述盖盖住时产生的气密空间。 大气开口部构造成在高于排出到盖的液体表面的位置与盖的内部连通，并且设置有防止液体从吸引泵朝向盖的流动的止回阀 放电路径。

公开(公告)号：US20110109692A1

公开(公告)日：2011-05-12

申请号：US12914358

申请日：2010-10-28

申请人： Yoichi ITO ,  Akiyoshi Tanaka

发明人： Yoichi ITO ,  Akiyoshi Tanaka

IPC分类号： B41J2/165

CPC分类号： B41J2/185 ,  B41J2/1714

摘要： An image forming apparatus includes a recording head that discharges an electrically substantially neutral droplet of ink onto a recording medium; a transport unit that transports the recording medium such that a recording surface of the recording medium is substantially orthogonal with respect to an ink discharge direction of the recording head; and an electric field generating unit that generates an electric field when the recording head discharges the droplet of ink. The electric field is substantially parallel to the ink discharge direction in terms of intensity.

摘要翻译： 图像形成装置包括：记录头，其将基本上中性的电墨液排放到记录介质上; 传送单元，其传送记录介质，使得记录介质的记录表面相对于记录头的排墨方向基本正交; 以及电场产生单元，其在记录头放出墨滴时产生电场。 电场强度基本上平行于排墨方向。