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公开(公告)号：US5845185A
公开(公告)日：1998-12-01
申请号：US792759
申请日：1997-02-04
CPC分类号： G03G15/162
摘要： An intermediate transfer drum has at least a drum main body having a volume resistivity of 10.sup.4 to 10.sup.8 .OMEGA.cm, and an insulating layer provided on an outer surface of the drum main body. A first transfer voltage applying roller is provided inside the intermediate transfer drum so as to be opposite to a photosensitive drum and so as to be in contact with an inner surface of the intermediate transfer drum. A transfer roller is provided inside the intermediate transfer drum so as to be opposite to a second transfer grounded roller and so as to be in contact with the inner surface of the intermediate transfer drum. By thus arranging an image forming apparatus wherein image formation is carried out with respect to recording paper through the intermediate transfer drum, an optimal first transfer voltage can be applied from the photosensitive drum to the intermediate transfer drum, while an optimal second transfer voltage can be applied from the intermediate transfer drum to the recording medium. As a result, the first transfer and the second transfer are individually and simultaneously carried out. Furthermore, since the intermediate transfer drum does not become large in size, it is avoidable that the image forming apparatus becomes bulkier, while the lowering of the copying speed can also be suppressed.
摘要翻译： 中间转印鼓至少具有体积电阻率为104-108欧姆·厘米的鼓主体，以及设置在鼓主体的外表面上的绝缘层。 第一转印电压施加辊设置在中间转印鼓内部，以与感光鼓相对并且与中间转印鼓的内表面接触。 转印辊设置在中间转印鼓内部，以便与第二转印接地辊相对并且与中间转印鼓的内表面接触。 通过这样布置图像形成装置，其中通过中间转印鼓相对于记录纸进行图像形成，可以将最佳的第一转印电压从感光鼓施加到中间转印鼓，而最佳的第二转印电压可以 从中间转印鼓施加到记录介质。 结果，第一次转印和第二次转印单独并且同时进行。 此外，由于中间转印鼓的尺寸不会变大，所以可以避免图像形成装置变得更大，同时也可以抑制复印速度的降低。
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公开(公告)号：US5982524A
公开(公告)日：1999-11-09
申请号：US924699
申请日：1997-09-05
CPC分类号： G02B26/126
摘要： The present invention is intended to reduce a f.theta. correction error by correcting an error of an object scanning speed which is produced because a reflecting point of a laser beam moves on a polygon mirror. In an inventive laser scanner, laser light emitted from a laser oscillator is condensed into a beam by a condenser lens at first. This laser beam is reflected by a polygon mirror rotated by a scanning section and is reflected again to a photoreceptor by a curved reflecting mirror. A curved profile of a reflecting plane of the curved reflecting mirror in the main scanning direction is formed so as to be asymmetrical on right and left bounding about a scanning center point. Thereby, variation of speed for scanning the curved reflecting mirror by the light reflected by the polygon mirror may be canceled by the curved reflecting mirror and a speed for scanning the object may be fixed almost at a predetermined speed.
摘要翻译： 本发明旨在通过校正由于激光束的反射点在多面镜上移动而产生的物体扫描速度的误差来减小fθ校正误差。 在本发明的激光扫描仪中，首先从聚光透镜将从激光振荡器发射的激光聚光成束。 该激光束由被扫描部旋转的多面体镜反射，并被弯曲的反射镜再次反射到感光体。 在主扫描方向上的弯曲反射镜的反射面的弯曲轮廓形成为围绕扫描中心点的左右边界不对称。 由此，由多面镜反射的光来扫描弯曲反射镜的速度变化可能被弯曲的反射镜消除，并且用于扫描物体的速度可以几乎以预定速度固定。
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公开(公告)号：US5915074A
公开(公告)日：1999-06-22
申请号：US856321
申请日：1997-05-14
申请人： Yoichi Shimazawa , Hideo Matsuda , Yasutaka Maeda , Shunju Anzai , Osamu Fujimoto , Hidekazu Sakagami , Kazumi Irie
发明人： Yoichi Shimazawa , Hideo Matsuda , Yasutaka Maeda , Shunju Anzai , Osamu Fujimoto , Hidekazu Sakagami , Kazumi Irie
CPC分类号： G06K15/129 , G03G15/0184 , G03G2215/0106
摘要： Developing devices are provided adjacent to a light sensitive element. An intermediate transfer drum is provided adjacent to the light sensitive elements. After exposure of the light sensitive element, a first color or third color image is formed on the light sensitive element. On the other hand, after exposure of the light sensitive element, a second color or fourth color image can be formed on the light sensitive element. The first color image is transferred from the transfer unit to the intermediate transfer drum at the first transfer portion, and the second color image is transferred from the transfer unit at the second transfer portion so as to be superimposed on the first color image. Similarly, the third color image is transferred so as to be superimposed on the second image and the fourth color image is transferred so as to be superimposed on the third color image to the intermediate transfer drum. Accordingly, the first to fourth color images are superimposed. Thereby, downsizing of the device and cost reduction are achieved and image formation speed is facilitated.
摘要翻译： 显影装置设置在与光敏元件相邻的位置。 中间转印鼓设置成与光敏元件相邻。 在感光元件曝光之后，在感光元件上形成第一彩色或第三彩色图像。 另一方面，在感光元件曝光之后，可以在光敏元件上形成第二彩色或第四彩色图像。 第一彩色图像在第一转印部分从转印单元转印到中间转印鼓，并且第二彩色图像在第二转印部分从转印单元转印以便叠加在第一彩色图像上。 类似地，第三彩色图像被转印以叠加在第二图像上，并且第四彩色图像被转印以便叠加在第三彩色图像上至中间转印鼓。 因此，叠加第一至第四彩色图像。 从而，实现了装置的小型化和成本降低，并且促进了图像形成速度。
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公开(公告)号：US06240271B1
公开(公告)日：2001-05-29
申请号：US09238150
申请日：1999-01-28
申请人： Yoichi Shimazawa , Hideo Matsuda , Yasutaka Maeda , Shunju Anzai , Osamu Fujimoto , Hidekazu Sakagami , Kazumi Irie
发明人： Yoichi Shimazawa , Hideo Matsuda , Yasutaka Maeda , Shunju Anzai , Osamu Fujimoto , Hidekazu Sakagami , Kazumi Irie
IPC分类号： G03G1501
CPC分类号： G06K15/129 , G03G15/0184 , G03G2215/0106
摘要： Developing devices are provided adjacent to a light sensitive element. An intermediate transfer drum is provided adjacent to the light sensitive elements. After exposure of the light sensitive element, a first color or third color image is formed on the light sensitive element. On the other hand, after exposure of the light sensitive element, a second color or fourth color image can be formed on the light sensitive element. The first color image is transferred from the transfer unit to the intermediate transfer drum at the first transfer portion, and the second color image is transferred from the transfer unit at the second transfer portion so as to be superimposed on the first color image. Similarly, the third color image is transferred so as to be superimposed on the second image and the fourth color image is transferred so as to be superimposed on the third color image to the intermediate transfer drum. Accordingly, the first to fourth color images are superimposed. Thereby, downsizing of the device and cost reduction are achieved and image formation speed is facilitated.
摘要翻译： 显影装置设置在与光敏元件相邻的位置。 中间转印鼓设置成与光敏元件相邻。 在感光元件曝光之后，在感光元件上形成第一彩色或第三彩色图像。 另一方面，在感光元件曝光之后，可以在光敏元件上形成第二彩色或第四彩色图像。 第一彩色图像在第一转印部分从转印单元转印到中间转印鼓，并且第二彩色图像在第二转印部分从转印单元转印以便叠加在第一彩色图像上。 类似地，第三彩色图像被转印以叠加在第二图像上，并且第四彩色图像被转印以便叠加在第三彩色图像上至中间转印鼓。 因此，叠加第一至第四彩色图像。 从而，实现了装置的小型化和成本降低，并且促进了图像形成速度。
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5.发明授权Exposure device utilizing LEDs each having a plurality of luminescence portions 失效利用具有多个发光部分的LED的曝光装置
公开(公告)号：US5729269A
公开(公告)日：1998-03-17
申请号：US571186
申请日：1995-12-12
CPC分类号： B41J2/45
摘要： An image forming apparatus is provided with a photoreceptor, and an exposure device for exposing the photoreceptor based on image data so as to form an electrostatic latent image on the photoreceptor. The exposure device has a plurality of light emitting devices aligned along a main scanning direction of the photoreceptor, the respective light emitting devices having a plurality of luminescence portions, and a light emitting device driver for applying a voltage to the respective luminescence portions so that the luminescence area of the light emitting device increases step by step whenever the applied voltage increases by a predetermined voltage based on the image data. With the arrangement, tone expression is realized in the electrostatic latent image, according to the size of the luminescence area of the respective light emitting devices, which can be controlled by the voltage applied to the respective light emitting devices based on the image data. Accordingly, it is possible to form the electrostatic latent image having many tones on the photoreceptor based on image data accurately and easily.
摘要翻译： 图像形成装置设置有感光体，以及用于基于图像数据曝光感光体以在感光体上形成静电潜像的曝光装置。 曝光装置具有沿着感光体的主扫描方向排列的多个发光器件，各发光器件具有多个发光部分，以及用于向各个发光部分施加电压的发光器件驱动器， 只要施加的电压基于图像数据增加预定电压，发光器件的发光面积逐渐增加。 利用该布置，根据可以基于图像数据施加到各个发光装置的电压来控制的各个发光器件的发光面积的大小，在静电潜像中实现色调表达。 因此，可以准确且容易地基于图像数据在感光体上形成具有许多色调的静电潜像。
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公开(公告)号：US5895152A
公开(公告)日：1999-04-20
申请号：US968288
申请日：1997-11-12
申请人： Atsushi Ide , Kazumi Irie , Yoritaka Tsubaki , Masao Yamamoto , Hideo Matsuda
发明人： Atsushi Ide , Kazumi Irie , Yoritaka Tsubaki , Masao Yamamoto , Hideo Matsuda
IPC分类号： G03G15/20
CPC分类号： G03G15/2028 , G03G2215/2016 , G03G2215/2032
摘要： Since the paper entry guide is disposed below and in close proximity to a fixing belt, the leading edge of recording paper can become wavy or curled when operated in a high temperature, high humidity environment or when printing on the reverse side of the paper in double-sided print mode, and this has lead to the problem that the leading edge of the recording paper after transfer is not properly inserted in the narrow spacing between the paper entry guide and the fixing belt, resulting in a recording paper jam. A fixing device comprises a fixing belt stretched around a heating roller with a heat source contained therein and a fixing roller, a pressing roller for pressing the fixing roller from below via the fixing belt, and a paper entry guide disposed below and in close proximity to the fixing belt and upstream of a nipping portion composed of the fixing belt and the pressing roller. The paper entry guide is pivotably supported on a fulcrum. A solenoid is provided at the upstream side of the paper entry guide, and a return spring is disposed above the paper entry guide. The solenoid, when in the ON state, pulls a plunger to its lowermost position against the spring force of the return spring, and thereby rotates the paper entry guide in the clockwise direction about the fulcrum to maintain spacing with respect to the fixing belt.
摘要翻译： 由于进纸导板设置在定影带的下方并且靠近定影带，所以当在高温，高湿度环境中操作时或当在双面纸张的背面打印时，记录纸的前缘可能变得波浪或卷曲 这导致如下问题：转印后的记录纸的前缘未被正确地插入纸入口引导件和定影带之间的窄间距中，导致记录纸卡纸。 一种定影装置包括：一个在其上容纳热源的加热辊周围拉伸的定影带和一个定影辊，一个用于经由定影带从下方按压定影辊的加压辊，以及布置在下方并且靠近 定影带和由定影带和加压辊构成的夹持部分的上游。 纸张进入指南可枢转地支撑在支点上。 在进纸引导件的上游侧设置有螺线管，在纸入口引导件的上方设有复位弹簧。 螺线管处于接通状态时，抵抗复位弹簧的弹簧力将柱塞拉至其最低位置，从而使进纸引导件沿支点的顺时针方向旋转，以保持相对于定影带的间隔。
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公开(公告)号：US06888645B1
公开(公告)日：2005-05-03
申请号：US09551965
申请日：2000-04-19
申请人： Osamu Fujimoto , Hideo Matsuda
发明人： Osamu Fujimoto , Hideo Matsuda
IPC分类号： H04N1/387 , G03G15/01 , G03G15/36 , G03G21/00 , G06F15/00 , G06K1/00 , H04N1/00 , H04N1/46 , H04N1/50
CPC分类号： H04N1/506 , H04N1/00867
摘要： A color image forming apparatus of the present invention is, for example, a digital color copying machine arranged to include two image processing units (first and second image processing units) each having a photosensitive body. The first image processing unit forms a monochrome image and the second image processing unit forms a particular pattern or a trace pattern. According to this arrangement, the particular pattern or trace pattern can be added to a monochrome image while maintaining a printing rate as fast as a monochrome image printing rate. Consequently, an additional information of a color other than black can be combined with a monochrome image at the same printing rate as the monochrome image printing rate, thereby making it possible to provide a compact and inexpensive apparatus.
摘要翻译： 本发明的彩色图像形成装置例如是数字彩色复印机，其被配置为包括两个具有感光体的图像处理单元（第一和第二图像处理单元）。 第一图像处理单元形成单色图像，第二图像处理单元形成特定图案或迹线图案。 根据这种布置，可以将特定图案或迹线图案添加到单色图像中，同时保持与单色图像打印速率一样快的打印速率。 因此，可以以与单色图像打印速率相同的打印速率与黑色以外的颜色的附加信息与单色图像组合，从而可以提供紧凑且便宜的装置。
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公开(公告)号：US09497808B2
公开(公告)日：2016-11-15
申请号：US13290163
申请日：2011-11-07
IPC分类号： H05B33/08
CPC分类号： H05B33/0815
摘要： An LED drive circuit that is connectable to a phase control type of light adjuster and receives a voltage based on an a.c. voltage to drive an LED load, the LED drive circuit has a structure which includes: an adjustment signal generation portion that generates an adjustment signal in accordance with a characteristic of a phase control type of light adjuster which is connected to the LED drive circuit; and an adjustment portion that receives the adjustment signal to adjust a characteristic for driving the LED load.
摘要翻译： 一种LED驱动电路，其可连接到相位控制类型的光调节器，并接收基于交流电压的电压。 电压驱动LED负载，所述LED驱动电路具有如下结构，所述结构包括：调整信号生成部，其根据与所述LED驱动电路连接的相位控制型光调整器的特性生成调整信号; 以及调节部，其接收所述调整信号，以调整用于驱动所述LED负载的特性。
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公开(公告)号：US06389797B1
公开(公告)日：2002-05-21
申请号：US09697136
申请日：2000-10-27
申请人： Hideaki Sugishita , Hidetaka Mori , Kazuo Uematsu , Hideo Matsuda
发明人： Hideaki Sugishita , Hidetaka Mori , Kazuo Uematsu , Hideo Matsuda
IPC分类号： F02C600
CPC分类号： F01K23/106 , F02C7/224 , Y02E20/16
摘要： Gas turbine combined cycle system is improved to enhance gas turbine efficiency and combined efficiency by effecting steam-cooling of combustor tail tube and turbine blades. In the combined cycle system comprising; gas turbine (8) having generator (1), compressor (2), combustor (3), blade cooling air cooler (4), fan (5) and turbine (6); steam turbine (29) having high pressure turbine (21), intermediate pressure turbine (22) and low pressure turbine (23); and waste heat recovery boiler (9), saturated water of intermediate pressure economizer (12) is partially led into fuel heater (30) for heating fuel and the water cooled thereby is supplied to feed water heater (10). Steam of intermediate pressure superheater (16) is led into the combustor tail tube for cooling thereof and the steam is then supplied to inlet of the intermediate pressure turbine (22). Steam of outlet of the high pressure turbine (21) is led into the turbine (6) for cooling blades thereof and the steam used for cooling stationary blades is supplied to the inlet of the intermediate pressure turbine (22) and the steam used for cooling moving blades is supplied to reheater (20). Thus, the efficiency is enhanced.
摘要翻译： 改进了燃气轮机联合循环系统，通过对燃烧器尾管和涡轮叶片进行蒸汽冷却来提高燃气轮机的效率和综合效率。 在组合循环系统中，包括： 具有发电机（1），压缩机（2），燃烧器（3），叶片冷却空气冷却器（4），风扇（5）和涡轮机（6）的燃气轮机（8） 具有高压涡轮机（21），中压涡轮机（22）和低压涡轮机（23）的汽轮机（29）; 和余热回收锅炉（9），将中压节能器（12）的饱和水部分地引入用于加热燃料的燃料加热器（30）中，并且将由此冷却的水供应给给水加热器（10）。 中压过热器（16）的蒸汽被引入燃烧器尾管中以进行冷却，然后将蒸汽供应到中压涡轮（22）的入口。 高压涡轮机（21）的出口蒸汽被引入到涡轮机（6）中，用于冷却叶片，用于冷却静止叶片的蒸汽被供应到中压涡轮机（22）的入口和用于冷却的蒸汽 活动叶片被供应到再热器（20）。 因此，提高效率。
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10.发明授权Apparatus for forming superimposed image patterns having controlled densities 有权用于形成具有受控密度的叠加图像图案的装置
公开(公告)号：US6148168A
公开(公告)日：2000-11-14
申请号：US390931
申请日：1999-09-07
申请人： Masashi Hirai , Hideo Matsuda
发明人： Masashi Hirai , Hideo Matsuda
CPC分类号： H04N1/506 , G03G15/0194 , G03G2215/00063 , G03G2215/0016 , G03G2215/0119
摘要： The image forming apparatus includes: an image forming portion having a multiple image forming stations each forming a color separated image; a transfer device for superimposing and transferring color separated images; a pattern image forming device for forming a predetermined pattern image; a pattern image density measuring device for measuring the density of the pattern image. In this configuration, the pattern image is formed so as to be greater than the measuring area of the pattern image density measuring device and is formed of multiple lines having a line width and a line spacing so that any part of the pattern image within the measuring area will produce an approximately constant measured density value. The image forming apparatus further includes a timing control device which performs control in such a sequence that one image forming station to be the reference, in the image forming portion, a pattern image; the image forming station to be adjusted forms another pattern image, which is superimposed over the pattern image formed by the reference image forming station; the pattern image density measuring device measures the density of the superimposed pattern image so as to judge the superimposed state of the pattern image based on the measured density; and the image forming station to be adjusted is controlled so as to perform image forming at a timing so that the measured density will fall within a predetermined permissible density range.
摘要翻译： 图像形成装置包括：图像形成部，具有形成分色图像的多个图像形成站; 用于叠加和传送分色图像的传送装置; 用于形成预定图案图像的图案图像形成装置; 用于测量图案图像的浓度的图案图像浓度测量装置。 在该配置中，图案图像形成为大于图案图像浓度测量装置的测量区域，并且由具有线宽和线间距的多条线形成，使得测量内的图案图像的任何部分 区域将产生近似恒定的测量密度值。 图像形成装置还包括定时控制装置，其以图像形成部分中的一个图像形成站为参照的顺序进行图案图像的控制; 要调整的图像形成站形成叠加在由参考图像形成站形成的图案图像上的另一图案图像; 图案图像浓度测量装置测量叠加的图案图像的浓度，以便基于测量的密度来判断图案图像的叠加状态; 并且控制要调整的图像形成站，以在定时进行图像形成，使得测量的密度将落在预定的允许密度范围内。
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