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1. 发明授权

US5541736A Color image forming system which conducts charging exposure and development with respect to a photosensitive medium at a plurality of times 失效
标题翻译：彩色图像形成系统，其对多个感光介质进行充电曝光和显影
公开(公告)号：US5541736A
公开(公告)日：1996-07-30
申请号：US225070
申请日：1994-04-08
申请人： Toshiaki Sagara , Toru Teshigawara , Yasuki Yamauchi , Haruyuki Namba , Takuto Tanaka , Shigeru Inaba , Koichiro Shinohara , Takahide Inoue , Jun Abe
发明人： Toshiaki Sagara , Toru Teshigawara , Yasuki Yamauchi , Haruyuki Namba , Takuto Tanaka , Shigeru Inaba , Koichiro Shinohara , Takahide Inoue , Jun Abe
IPC分类号： B41J2/44 , G03G15/01 , H04N1/50 , H04N1/52
CPC分类号： H04N1/52 , G03G15/011 , H04N1/506
摘要： A color-image forming apparatus includes: an electrostatic latent image holder; electrostatic latent image forming unit for forming a plurality of electrostatic latent images on the image holder; a scanning unit for scanning the electrostatic latent image holder periodically at predetermined timings; developing devices for developing each of the plurality of electrostatic latent images by toners of each of different colors respectively, and forming thus developed toner image on the image holder; a simultaneously transferring device for simultaneously transferring the plurality of toner images onto a transfer medium; fixing device for fixing the toner image on the transfer medium; and timing-setting unit for setting a timing at which said scanning means starts scanning at each of slow scanning pitches in the direction of fast scanning for each of the plurality of colors; wherein the timings which are allotted to each of the colors are different each other so that the starting position of the scanning of each color at each of slow scanning pitches in the direction of the fast scanning is successively shifted at a predetermined distance.
摘要翻译：彩色图像形成装置包括：静电潜像保持器; 静电潜像形成单元，用于在图像保持器上形成多个静电潜像; 扫描单元，用于以预定的定时周期性地扫描静电潜像保持器; 显影装置，用于分别通过各种不同颜色的调色剂来显影多个静电潜像中的每一个，并且在图像保持器上形成如此显影的调色剂图像; 同时传送装置，用于同时将多个调色剂图像转印到转印介质上; 用于将调色剂图像定影在转印介质上的定影装置; 以及定时设定单元，用于根据所述多种颜色中的每一种来设置所述扫描装置在快速扫描方向上的每个慢扫描间距处开始扫描的定时; 其中分配给每种颜色的定时彼此不同，使得在快速扫描的方向上的每个慢扫描间距处的每种颜色的扫描的开始位置以预定距离连续偏移。

2. 发明授权

US5581331A Color image forming apparatus 失效
标题翻译：彩色图像形成装置
公开(公告)号：US5581331A
公开(公告)日：1996-12-03
申请号：US547461
申请日：1995-10-24
申请人： Toru Teshigawara , Toshiaki Sagara , Yasuki Yamauchi , Takuto Tanaka , Haruyuki Nanba
发明人： Toru Teshigawara , Toshiaki Sagara , Yasuki Yamauchi , Takuto Tanaka , Haruyuki Nanba
IPC分类号： G03G15/00 , G03G15/01 , G03G15/02 , G03G15/16 , G03G21/00
CPC分类号： G03G15/0105 , G03G15/0291 , Y10S430/102
摘要： In a color image forming apparatus, charging, exposure and development are repeated thereby a plurality of color component toner images are formed in superposing on an image carrier and then transferred collectively to an image receptor. As a charging device used in image forming cycle of at least the second color or later, a corona charging device having a discharge electrode and a grid is used. An electrode power source applying at least AC voltage is connected to the discharge electrode, and a grid power source applying AC voltage in nearly the same phase as that of the AC voltage applied to the discharge electrode is connected to the grid, and frequency or peak-to-peak amplitude of the AC voltage from the grid power source is set to optimum range.
摘要翻译：在彩色图像形成装置中，重复充电，曝光和显影，由此将多个颜色分量调色剂图像重叠地形成在图像载体上，然后集体转印到图像接收器。作为至少第二种颜色的图像形成循环中使用的充电装置，使用具有放电电极和栅极的电晕充电装置。施加至少AC电压的电极电源连接到放电电极，并且施加与施加到放电电极的AC电压几乎相同的AC电压的电网电源连接到电网，频率或峰值来自电网电源的交流电压的峰值幅度被设定为最佳范围。

3. 发明授权

US5561455A Color image forming apparatus 失效
标题翻译：彩色图像形成装置
公开(公告)号：US5561455A
公开(公告)日：1996-10-01
申请号：US321520
申请日：1994-10-12
申请人： Toru Teshigawara , Haruyuki Nanba , Toshiaki Sagara , Yasuki Yamauchi , Takuto Tanaka
发明人： Toru Teshigawara , Haruyuki Nanba , Toshiaki Sagara , Yasuki Yamauchi , Takuto Tanaka
IPC分类号： B41J2/525 , G03G15/01 , G03G15/04 , H04N1/46 , H04N1/50 , H04N1/52 , H04N1/21
CPC分类号： H04N1/508 , H04N1/52
摘要： In a color image forming apparatus, a screen of each of electrostatic latent images to be formed by an exposing device has a parallel lines structure, and phases of the electrostatic latent images each having the parallel lines structure for at least two different colors are made different from each other. Accordingly, the color image forming apparatus can totally solve the problem caused by the rise in potential of exposed portions by toner charges and the dielectric property of toner layers and the problem caused by the toner shielding effect to thereby allow faithful reproduction of a highlight area important for a good halftone image, especially a high-quality color image.
摘要翻译：在彩色图像形成装置中，由曝光装置形成的每个静电潜像的屏幕具有平行的线结构，并且使具有至少两种不同颜色的平行线结构的静电潜像的相位不同从彼此。因此，彩色图像形成装置可以完全解决由调色剂电荷引起的暴露部分的电位上升和调色剂层的介电性以及由调色剂屏蔽效应引起的问题引起的问题，从而允许忠实地再现高亮区域重要对于一个好的半色调图像，特别是高品质的彩色图像。

4. 发明授权

US5999202A Image forming apparatus and image forming method that concentrates exposure intensity of a laser light of each picture element 失效
标题翻译：图像形成装置和图像形成方法，其聚集每个像素的激光的曝光强度
公开(公告)号：US5999202A
公开(公告)日：1999-12-07
申请号：US731237
申请日：1996-10-11
申请人： Takuto Tanaka , Toshie Gotoh
发明人： Takuto Tanaka , Toshie Gotoh
IPC分类号： B41J2/44 , G03G15/00 , G03G15/04 , G03G15/043 , G06K15/12 , H01S5/042 , B41J2/40 , B41J2/405
CPC分类号： G06K15/1209
摘要： An image forming apparatus and an image forming method in which a latent image is formed by scanning the surface of an image bearing body with a laser light blinking in accordance with pulse-width modulation based on an image signal. Output-control-wave generating device generates an output control wave having a peak for a write time of each picture element. The output control wave is turned on and off by a gate circuit with timing determined by an exposure control signal generated by exposure control device. A signal output by the gate circuit is converted by a V/I converter into a driving current wave for controlling radiation of a laser light by an exposure unit. In this way, exposure energy produced by the exposure unit can be concentrated on an exposure time duration of each picture element, allowing the amount of mutual interference among picture elements to be reduced.
摘要翻译：一种图像形成装置和图像形成方法，其中通过基于图像信号根据脉冲宽度调制而以激光闪烁图像承载体的表面形成潜像。输出控制波生成装置生成具有每个图像元素的写入时间的峰值的输出控制波。输出控制波由具有由曝光控制装置产生的曝光控制信号确定的定时的门电路导通和关断。由门电路输出的信号由V / I转换器转换成用于通过曝光单元控制激光的辐射的驱动电流波。以这种方式，由曝光单元产生的曝光能量可以集中在每个像素的曝光持续时间上，从而可以减少像素之间的相互干扰量。

5. 发明授权

US6023601A Developing device using two-component developer 失效
标题翻译：使用双组分显影剂开发设备
公开(公告)号：US6023601A
公开(公告)日：2000-02-08
申请号：US244567
申请日：1999-02-10
申请人： Satoru Hirosaki , Nobumasa Furuya , Takuto Tanaka
发明人： Satoru Hirosaki , Nobumasa Furuya , Takuto Tanaka
IPC分类号： G03G15/08 , G03G15/09
CPC分类号： G03G15/0921
摘要： In a developing device for visualizing an electrostatic latent image using two-component developer containing toner and magnetic carrier, excellent development will be performed and deterioration of the developer will be prevented. A developer carrier opposite to an image carrier having an electrostatic latent image formed thereon is prepared by forming a thin layer of aluminum with a thickness of 3 .mu.m or less on the peripheral surface of a roll-shaped member made of ferrite, and the surface roughness Rz of the peripheral surface of the foregoing ferrite roll is set to 50 .mu.m or less. N-poles and S-poles are alternately magnetized at a 50-to-250-.mu.m pitch along the peripheral surface of this ferrite roll. These magnetic poles can be magnetized to have uniform intensity because the peripheral surface of the roll has been smoothly finished, and a developer layer having only substantially one layer of the carrier uniformly attracted is formed on the peripheral surface. On the other hand, a magnetic recording layer is provided on a roll-shaped conductive substrate, and its surface may be finished so as to satisfy relation of Rz.ltoreq.50 .mu.m. At this time, the thickness of the magnetic recording layer is desirably set to 200 .mu.m or less.
摘要翻译：在使用包含调色剂和磁性载体的双组分显影剂使静电潜像可视化的显影装置中，将进行优异的显影，并且可以防止显影剂的劣化。通过在由铁素体制成的辊状构件的外周面上形成厚度为3μm以下的铝薄膜，形成与形成有静电潜像的图像载体相对的显影剂载体，上述铁素体卷的外周面的粗糙度Rz设定为50μm以下。 N极和S极沿着该铁氧体辊的外周表面交替地以50-250μm间距磁化。这些磁极可以被磁化以具有均匀的强度，因为辊的圆周表面已经平滑地完成，并且在外周表面上形成仅具有基本上一层载体均匀吸引的显影剂层。另一方面，磁性记录层设置在辊状导电性基板上，其表面可以被加工成满足Rz≤50μm的关系。此时，磁记录层的厚度优选设定为200μm以下。

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