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1. 发明授权

US5179397A Image forming apparatus with constant voltage and constant current control 失效
标题翻译：具有恒定电压和恒定电流控制的图像形成装置
公开(公告)号：US5179397A
公开(公告)日：1993-01-12
申请号：US500795
申请日：1990-03-28
申请人： Yukihiro Ohzeki , Tatsunori Ishiyama , Koichi Hiroshima , Junji Araya , Yasushi Sato , Kimio Nakahata , Akihiko Takeuchi , Takayasu Yuminamochi , Hiroto Hasegawa , Koichi Tanigawa , Yasumasa Ohtsuka
发明人： Yukihiro Ohzeki , Tatsunori Ishiyama , Koichi Hiroshima , Junji Araya , Yasushi Sato , Kimio Nakahata , Akihiko Takeuchi , Takayasu Yuminamochi , Hiroto Hasegawa , Koichi Tanigawa , Yasumasa Ohtsuka
IPC分类号： G03G15/16 , G01D15/14
CPC分类号： G03G15/1675 , G03G2215/1652
摘要： An image forming apparatus includes a movable image bearing member; an image forming device for forming a toner image on the image bearing member; image transfer device for transferring the toner image from the image bearing member to a transfer material at an image transfer station, wherein the transfer device includes a charging member press-contacted or faced to the image bearing member and a device for applying a voltage to the charging member, wherein the voltage applying device applies a voltage to the charging member so that the charging member is constant-voltage-controlled when an image region of the image bearing member is in the transfer station, and the charging member is constant-current-controlled during at least a part of a period when it is not in the transfer station, wherein a voltage V2 applied during the constant voltage control is a voltage V1 appearing in the transfer device during the constant current control multiplied by a coefficient R, in which R is larger than 1.

2. 发明授权

US5159393A Image forming apparatus having transfer device and image bearing member traveling at different speeds 失效
标题翻译：具有转印装置和图像承载部件以不同速度行进的图像形成装置
公开(公告)号：US5159393A
公开(公告)日：1992-10-27
申请号：US561075
申请日：1990-08-01
申请人： Koichi Hiroshima , Yukihiro Ohzeki , Junji Araya , Yasushi Sato , Tatsunori Ishiyama , Kimio Nakahata , Koichi Tanigawa , Akihiko Takeuchi , Takayasu Yuminamochi , Yoshiro Tsuchiya
发明人： Koichi Hiroshima , Yukihiro Ohzeki , Junji Araya , Yasushi Sato , Tatsunori Ishiyama , Kimio Nakahata , Koichi Tanigawa , Akihiko Takeuchi , Takayasu Yuminamochi , Yoshiro Tsuchiya
IPC分类号： G03G15/16
CPC分类号： G03G15/167
摘要： An image forming apparatus includes a movable image bearing member, an image forming device for forming the image bearing member, and an image transfer device contactable to the image bearing member at an image transfer position. The transfer device transfers the image formed by the image forming device onto a transfer material while the transfer material is conveyed through the transfer position together with the image bearing member, wherein the transfer device has a hardness of 20-40 degrees (Asker-C), and it is pressed to the image bearing member at a pressure of 50-200 g/cm.sup.2, and wherein a peripheral speed of the transfer device at the transfer position during a transfer operation is higher than a peripheral speed of the image bearing member at the transfer position.
摘要翻译：图像形成装置包括可动图像承载部件，用于形成图像承载部件的图像形成装置，以及在图像转印位置可与图像承载部件接触的图像转印装置。转印装置将图像形成装置形成的图像转印到转印材料上，同时转印材料与图像承载部件一起输送通过转印位置，其中转印装置具有20-40度的硬度（Asker-C）并且以50-200g / cm 2的压力被压向图像承载部件，并且其中转印操作期间转印位置处的转印装置的圆周速度高于图像承载部件的圆周速度转移位置。

3. 发明授权

US5034777A Transferring device having charging device with double oxide and voltage control 失效
标题翻译：具有双重氧化和电压控制的充电装置的传输装置
公开(公告)号：US5034777A
公开(公告)日：1991-07-23
申请号：US537785
申请日：1990-06-14
申请人： Yukihiro Ohzeki , Koichi Hiroshima , Yoshiaki Nishimura , Jun Murata , Junji Araya , Tatsunori Ishiyama , Yasushi Sato , Kimio Nakahata
发明人： Yukihiro Ohzeki , Koichi Hiroshima , Yoshiaki Nishimura , Jun Murata , Junji Araya , Tatsunori Ishiyama , Yasushi Sato , Kimio Nakahata
IPC分类号： G03G15/00 , G03G15/16
CPC分类号： G03G15/1675
摘要： An image forming apparatus includes a movable image bearing member; an image forming device for forming an image on the image bearing member; a transfer device for transferring an image from the image bearing member to a transfer material at a transfer position, wherein the transfer device is contactable to a backside of the transfer material at the transfer position and includes a charging member including a double oxide and a voltage source for applying a voltage to the charging member, and wherein the voltage source constant-voltage-controls the charging member when an image region of the image bearing member is at the transfer position, and constant-current-controls the charging member in at least a part of a period when the image region of the image bearing member is not at the transfer position, wherein a constant voltage for the constant voltage control is determined on the basis of the constant current control.

4. 发明授权

US5450180A Image forming apparatus having constant current and voltage control in the charging and transfer regions 失效
标题翻译：图像形成装置在充电和转印区域中具有恒定的电流和电压控制
公开(公告)号：US5450180A
公开(公告)日：1995-09-12
申请号：US240212
申请日：1994-05-09
申请人： Yukihiro Ohzeki , Koichi Hiroshima , Junji Araya , Yasushi Sato , Toshio Miyamoto , Kimio Nakahata
发明人： Yukihiro Ohzeki , Koichi Hiroshima , Junji Araya , Yasushi Sato , Toshio Miyamoto , Kimio Nakahata
IPC分类号： G03G15/16
CPC分类号： G03G15/1675
摘要： An image forming apparatus includes a movable image bearing member; an image forming device for forming an image on the image bearing member; a charging member disposed opposed to the image bearing member; and bias application device for applying a bias voltage to the charging member, wherein the bias applying device effects a constant voltage control to the charging member when an image area of the image bearing member is in a charging region of the charging member, and effects a constant current control during at least a part of a period in which an area of the image bearing member other than the image area is in the charging region, and wherein a level of a constant voltage of the constant voltage control is determined during the constant current control.
摘要翻译：图像形成装置包括可动图像承载部件; 图像形成装置，用于在图像承载部件上形成图像; 与图像承载部件相对设置的充电部件; 以及偏压施加装置，用于对充电部件施加偏置电压，其中当图像承载部件的图像区域处于充电部件的充电区域时，偏置施加装置对充电部件施加恒定的电压控制，在图像区域以外的图像承载部件的区域处于充电区域的期间的至少一部分期间的恒定电流控制，并且在恒定电流期间确定恒定电压控制的恒定电压的电平控制。

5. 发明授权

US5010370A Transfer apparatus and image bearing apparatus using same having transfer means for contacting a backside of a transfer material 失效
标题翻译：使用转印装置和图像承载装置具有用于接触转印材料的背面的转印装置
公开(公告)号：US5010370A
公开(公告)日：1991-04-23
申请号：US426002
申请日：1989-10-24
申请人： Junji Araya , Yukihiro Ohzeki , Toshio Miyamoto , Koichi Hiroshima , Yasushi Sato , Kimio Nakahata
发明人： Junji Araya , Yukihiro Ohzeki , Toshio Miyamoto , Koichi Hiroshima , Yasushi Sato , Kimio Nakahata
IPC分类号： G03G15/16
CPC分类号： G03G15/1675
摘要： An image transfer apparatus for transferring a toner image onto a transfer material includes an image bearing member for carrying a developed toner image; image transfer bias applying roller for contacting to a backside of the transfer material, for urging it to the image bearing member having the toner image and for applying a transfer bias to transfer the toner image to the transfer material; wherein amounts of charge applied to the transfer material by the transfer bias applying roller during its transfer operation satisfyA.gtoreq.B/2where A (Coulomb/cm.sup.2) is an amount of the charge at a portion where a surface potential of the image bearing member is relatively low, and B (Coulomb/cm.sup.2) is an amount of the charge at a portion where the surface potential of the image bearing member is relatively high. Then, disturbance to the image by the image transfer operation can be avoided.

6. 发明授权

US5223900A Transfer roller with a resistance determined in accordance with its peripheral speed 失效
标题翻译：转印辊的电阻根据其圆周速度确定
公开(公告)号：US5223900A
公开(公告)日：1993-06-29
申请号：US801887
申请日：1991-12-03
申请人： Takayasu Yuminamochi , Koichi Tanigawa , Akihiko Takeuchi , Koichi Hiroshima
发明人： Takayasu Yuminamochi , Koichi Tanigawa , Akihiko Takeuchi , Koichi Hiroshima
IPC分类号： G03G15/16
CPC分类号： G03G15/1685
摘要： An image forming apparatus includes a movable image bearing member; a transfer device cooperative with the image bearing member to form a nip, through which a transfer material is passed to electrostatically transfer an image from the image bearing member onto the transfer material; where the resistance R range providing proper image transfer is determined in accordance with the equation:-9.16.times.10.sup.3 .times.v+11.68-0.65.ltoreq.log.sub.10 (R.times.L).ltoreq.-9.16.times.10.sup.3 .times.v+11.68+0.65where V (mm/sec) is movement speed of the image bearing member (v.gtoreq.40), R (ohm) is a resistance of the transfer device when a voltage of 3 KV is applied between the image bearing member and the transfer device, and L (mm) is a length of the nip measured in a direction of a generating line of the image bearing member.
摘要翻译：图像形成装置包括可动图像承载部件; 转印装置与图像承载部件协作以形成辊隙，转印材料通过该辊隙通过，以将图像从图像承载部件静电转印到转印材料上; 其中根据以下等式确定提供适当图像转印的电阻R范围：-9.16×103×v + 11.68-0.65 = 40）时，当在图像承载部件和转印装置之间施加3KV的电压时，R（ohm）是转印装置的电阻，L（mm）为沿着图像承载部件的生成线的方向测量压区的长度。

7. 发明授权

US5646717A Image forming apparatus having charging member 失效
标题翻译：具有充电部件的图像形成装置
公开(公告)号：US5646717A
公开(公告)日：1997-07-08
申请号：US388889
申请日：1995-02-14
申请人： Koichi Hiroshima , Masahiro Goto , Yoji Serizawa , Makoto Takeuchi , Tatsunori Ishiyama
发明人： Koichi Hiroshima , Masahiro Goto , Yoji Serizawa , Makoto Takeuchi , Tatsunori Ishiyama
IPC分类号： G03G15/02 , G03G15/16
CPC分类号： G03G15/1675 , G03G15/0266 , G03G2215/021
摘要： An image forming apparatus includes image forming device for forming an image on a recording material, the image forming device including an image bearing member, a charging member for charging the image bearing member and a voltage source for supplying a voltage to the charging member; and determining device for determining a substantial intersection between an actual voltage-current characteristic curve between the charging member and the image bearing member and a predetermined voltage-current curve predetermined for the charging member, and for determining a bias to be applied to the charging member during image forming operation of the basis of the intersection.
摘要翻译：图像形成装置包括用于在记录材料上形成图像的图像形成装置，图像形成装置包括图像承载部件，用于对图像承载部件充电的充电部件和用于向充电部件提供电压的电压源; 以及确定装置，用于确定充电构件和图像承载构件之间的实际电压 - 电流特性曲线与为充电构件预定的预定电压 - 电流曲线之间的实质交叉点，并且用于确定施加到充电构件的偏压在图像形成操作的基础上交叉点。

8. 发明授权

US5285245A Electrostatic transfer type image forming apparatus with recording material guide for changing direction of recording material separation from image transfer position 失效
标题翻译：具有用于改变记录材料从图像转印位置分离的方向的记录材料引导件的静电转印型图像形成装置
公开(公告)号：US5285245A
公开(公告)日：1994-02-08
申请号：US903129
申请日：1992-06-23
申请人： Masahiro Goto , Takahiro Inoue , Koichi Hiroshima , Koichi Suwa , Tatsunori Ishiyama , Manabu Takano
发明人： Masahiro Goto , Takahiro Inoue , Koichi Hiroshima , Koichi Suwa , Tatsunori Ishiyama , Manabu Takano
IPC分类号： B65H5/36 , G03G15/00 , G03G15/16 , G03G15/20 , G03G15/14
CPC分类号： G03G15/2064 , G03G15/16
摘要： An image forming apparatus has an image supporting member for supporting a toner image, a transfer rotating member forming a nip with the image supporting member and electrostatically transferring the toner image formed on the image supporting member to a recording material, a fixing device for fixing the toner image to the recording material holding the toner image, and a guide member for guiding the recording material so that the angle between the direction of separation of the recording material from the transfer rotating member and the tangent to the image supporting member at the center of the nip is at least 2.degree. in a direction toward the image supporting member. The fixing device has a fixing rotating member, which contacts the toner image on the recording material and to which a bias of the same polarity as that of the toner is applied, and a pressure rotating member in pressure contact with the fixing rotating member so as to hold the recording material between the fixing rotating member and the pressure rotating member.
摘要翻译：图像形成装置具有用于支撑调色剂图像的图像支持构件，与图像支撑构件形成辊隙的转印旋转构件，并将形成在图像支撑构件上的调色剂图像静电转印到记录材料上，固定装置调色剂图像到保持调色剂图像的记录材料，以及引导构件，用于引导记录材料，使得记录材料与转印旋转构件的分离方向与图像支撑构件的切线之间的角度位于辊隙在朝向图像支撑构件的方向上至少为2度。定影装置具有与记录材料上的调色剂图像接触并且施加与调色剂的极性相同的偏压的固定旋转构件和与定影旋转构件压力接触的压力旋转构件，以便以将记录材料保持在固定旋转构件和压力旋转构件之间。

9. 发明授权

US06754454B1 Image forming apparatus capable of discriminating a service life of detachably mounted process unit 失效
标题翻译：能够辨别可拆卸安装的处理单元的使用寿命的图像形成装置
公开(公告)号：US06754454B1
公开(公告)日：2004-06-22
申请号：US09575988
申请日：2000-05-23
申请人： Koichi Hiroshima , Masahide Kinoshita , Hironobu Isobe , Ryuichi Yoshizawa
发明人： Koichi Hiroshima , Masahide Kinoshita , Hironobu Isobe , Ryuichi Yoshizawa
IPC分类号： G03G1508
CPC分类号： G03G21/1889 , G03G2215/0888 , G03G2221/1663 , G03G2221/1823
摘要： An image forming apparatus includes an image bearing member; a developing device for developing a latent image formed on the image bearing member, the image bearing member and the developing means being detachably mountable to the apparatus as a process unit; a developer supply unit for supplying a developer to the developing means, the developer supply unit being detachably mountable to the apparatus; and a first memory mounted on the process unit. The first memory stores information relating to the developer supply unit.
摘要翻译：图像形成装置包括：图像承载部件; 用于显影形成在图像承载部件上的潜像的显影装置，图像承载部件和显影装置可拆卸地安装到装置上作为处理单元; 用于将显影剂供应到显影装置的显影剂供应单元，显影剂供应单元可拆卸地安装到装置上; 以及安装在处理单元上的第一存储器。第一存储器存储与显影剂供应单元有关的信息。

10. 发明授权

US5809373A Image forming apparatus which back-transfers residual toner from an intermediate transfer member to a photosensitive drum 失效
标题翻译：图像形成装置将残留调色剂从中间转印部件反向转印到感光鼓上
公开(公告)号：US5809373A
公开(公告)日：1998-09-15
申请号：US651858
申请日：1996-05-21
申请人： Yasuo Yoda , Katsuhiko Nishimura , Koichi Hiroshima , Shinichi Tsukida , Toru Kosaka
发明人： Yasuo Yoda , Katsuhiko Nishimura , Koichi Hiroshima , Shinichi Tsukida , Toru Kosaka
IPC分类号： G03G15/16
CPC分类号： G03G15/161 , G03G15/1605 , G03G2215/1652
摘要： An image forming apparatus has an image bearing member; toner image forming unit for forming a toner image with non-magnetic toner on an image bearing member; intermediate transfer member contactable to the image bearing member and movable along an endless path; primary transfer unit for effecting primary image transfer of the toner image formed on the image bearing member onto the intermediate transfer member at a first transfer position; secondary transfer unit for effecting a secondary image transfer of the toner image from the intermediate transfer member on the transfer material at a second transfer position; and a residual toner charger for charging the residual toner remaining on the intermediate transfer member to a polarity opposite from a regular polarity thereof. After the secondary image transfer, the residual toner remaining on the intermediate transfer member is charged by the residual toner charger to the opposite polarity, and is then passed through the first transfer position during the primary image transfer, so that the residual toner is transferred back to the image bearing member substantially simultaneously with a next primary image transfer, thus removing the residual toner from the intermediate transfer member.
摘要翻译：图像形成装置具有图像承载部件; 调色剂图像形成单元，用于在图像承载部件上形成具有非磁性调色剂的调色剂图像; 中间转印部件，其能够与图像承载部件接触并沿着环形路径移动; 一次转印单元，用于在第一转印位置处将形成在图像承载部件上的调色剂图像初次转印到中间转印部件上; 二次转印单元，用于在第二转印位置进行从转印材料上的中间转印部件的调色剂图像的二次图像转印; 以及剩余调色剂充电器，用于将残留在中间转印部件上的剩余调色剂充电到与其正常极性相反的极性。在二次图像转印之后，残留在中间转印部件上的剩余调色剂由剩余调色剂充电器充电至相反极性，然后在主图像转印期间通过第一转印位置，从而将残留调色剂转印回在下一次图像转印的同时基本上与图像承载部件相接触，从而从中间转印部件去除残留的调色剂。

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