专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20160161879A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20160161879A1
公开(公告)日：2016-06-09
申请号：US14960068
申请日：2015-12-04
申请人： KYOCERA Document Solutions Inc.
发明人： Shinji Otani , Norio Kubo , Masashi Fujishima , Koji Suenami , Yoshimi Shimizu , Kenichi Tamaki
IPC分类号： G03G21/00
CPC分类号： G03G15/0275 , G03G15/09 , G03G15/169 , G03G21/08
摘要： In the case where development is performed by a two-component developing method, a previous charge removal light-emitting portion applies charge removal light to a first charge removal target region of an effective outer circumferential surface of a photosensitive member on which effective outer circumferential surface an electrostatic latent image can be formed. The first charge removal target region includes a part of a magnetic brush contact region of the effective outer circumferential surface and a region of the effective outer circumferential surface between the magnetic brush contact region and a transfer position of a toner image.
摘要翻译：在通过双组分显影方法进行显影的情况下，先前的电荷去除发光部分将电荷去除光施加到感光部件的有效外周表面的第一电荷去除目标区域，可以形成静电潜像。第一电荷去除目标区域包括有效外周表面的磁刷接触区域的一部分和磁刷接触区域和调色剂图像的转印位置之间的有效外圆周表面的区域。

2. 发明申请

US20150177651A1 DEVELOPING ROLLER, DEVELOPING DEVICE, IMAGE FORMING APPARATUS, AND MANUFACTURING METHOD OF DEVELOPING ROLLER 有权
标题翻译：开发滚子，开发装置，图像形成装置和制造滚子的制造方法
公开(公告)号：US20150177651A1
公开(公告)日：2015-06-25
申请号：US14574266
申请日：2014-12-17
申请人： KYOCERA Document Solutions Inc.
发明人： Masashi Fujishima , Yuji Kamiyama , Tamotsu Shimizu , Shizuka Okada , Sakae Saito , Yasuhiro Oishi
IPC分类号： G03G15/09 , C25D11/18
CPC分类号： G03G15/09 , C08K2003/2237 , C09D5/24 , C09D7/61 , C09D7/67 , C23C28/00 , C25D9/06 , C25D11/024 , C25D11/08 , C25D11/10 , C25D11/18 , C25D11/24 , G03G15/0808 , G03G15/0818 , G03G15/0928
摘要： A developing roller includes a roller main body disposed to face, without contact, an outer circumferential surface of an image carrier. The roller main body includes an aluminum oxide thin film and a resin coat layer, the aluminum oxide thin film being formed on an outer circumferential surface of a base body that is made of a metal including aluminum, the resin coat layer being formed on a surface of the aluminum oxide thin film that has been subjected to a predetermined heating process, the resin coat layer being made of a resin material and having electric conductivity.
摘要翻译：显影辊包括辊状主体，其被设置为面对而不接触图像载体的外周表面。辊主体包括氧化铝薄膜和树脂涂层，氧化铝薄膜形成在由包括铝的金属制成的基体的外周面上，树脂涂层形成在表面上的已经进行了预定加热处理的氧化铝薄膜，树脂涂层由树脂材料制成并具有导电性。

3. 发明申请

US20150177642A1 DEVELOPING ROLLER, DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS INCLUDING DEVELOPING DEVICE 有权
标题翻译：开发滚子，开发设备和图像形成装置，包括开发设备
公开(公告)号：US20150177642A1
公开(公告)日：2015-06-25
申请号：US14571152
申请日：2014-12-15
申请人： KYOCERA Document Solutions Inc.
发明人： Yoshinobu Yoneima , Yuji Kamiyama , Akihiro Watanabe , Tamotsu Shimizu , Shizuka Okada , Sakae Saito , Yasuhiro Oishi , Chikara Ishihara , Masashi Fujishima , Yoshimi Shimizu , Yasuhiro Tauchi , Yu Sasaki
IPC分类号： G03G15/09
CPC分类号： G03G15/0808 , G03G15/0818 , G03G15/09
摘要： A developing roller includes a roller main body disposed to face, without contact, an outer circumferential surface of an image carrier. A resin coat layer has been formed on an outer circumferential surface of the roller main body, the resin coat layer being made of a resin material having electric conductivity. A product of resistance component Rs [Ω] and electrostatic capacitance component Cs [F] in AC impedance Z of the roller main body is in a range from 2.79×10−7 to 6.77×10−5, the AC impedance Z being obtained when an AC voltage of a predetermined frequency f is applied.
摘要翻译：显影辊包括辊状主体，其被设置为面对而不接触图像载体的外周表面。在辊主体的外周面上形成树脂涂层，树脂涂层由具有导电性的树脂材料制成。辊主体的交流阻抗Z中的电阻分量Rs [＆OHgr]和静电电容分量Cs [F]的乘积在2.79×10-7至6.77×10-5的范围内，获得AC阻抗Z 当施加预定频率f的AC电压时。

4. 发明授权

US10345741B2 Developing device and image forming apparatus including same 有权
公开(公告)号：US10345741B2
公开(公告)日：2019-07-09
申请号：US15890702
申请日：2018-02-07
申请人： KYOCERA Document Solutions Inc.
发明人： Masashi Fujishima , Norio Kubo , Junichi Nakagawa , Asami Sasaki
IPC分类号： G03G15/08 , G03G15/095
摘要： A developing device includes a developing container, first and second stirring-conveyance members, a developer carrier, a toner concentration sensor, a scraper, and a scraper attachment unit. The second stirring-conveyance member includes a rotation shaft, a first spiral blade to convey developer in an axial direction, and a second spiral blade to overlap a region where the first spiral blade is formed, which is opposite to the first spiral blade in phase, and lower than the first spiral blade in height in a radial direction. An absent region, where the second spiral blade does not exist, is formed in one pitch of the first spiral blade, the one pitch facing the toner concentration sensor. The scraper attachment unit is formed to extend, along a straight line passing through intersection points of the first and second spiral blades and parallel to the rotation shaft, into the absent region.

5. 发明授权

US09285713B2 Developing device, and image forming apparatus provided with the same 有权
标题翻译：显影装置和具有该显影装置的图像形成装置
公开(公告)号：US09285713B2
公开(公告)日：2016-03-15
申请号：US14680147
申请日：2015-04-07
申请人： KYOCERA Document Solutions Inc.
发明人： Sakae Saito , Hiroaki Sakai , Yukimasa Watanabe , Yasuhiro Oishi , Masashi Fujishima , Chikara Ishihara , Yasuhiro Tauchi
IPC分类号： G03G15/09 , G03G15/08
CPC分类号： G03G15/0907 , G03G15/0818 , G03G2215/0863
摘要： A developing device supplies a developer to a photosensitive drum, which has a cylindrical shape, and is rotatable around an axis thereof for forming an electrostatic latent image on the circumferential surface thereof. The developing device is provided with a developing roller. The developing roller is disposed to face the photosensitive drum, and has a cylindrical shape. The developing roller is rotatable around an axis thereof for carrying a developer on the circumferential surface thereof. The developing roller is provided with a small diameter portion. The small diameter portion is a part of the circumferential surface of the developing roller. The small diameter portion extends from an axial end of the developing roller axially inward by a predetermined length, and has an outer diameter smaller than an axially middle portion of the developing roller.
摘要翻译：显影装置将显影剂供应到具有圆柱形形状的感光鼓，并且可以围绕其轴线旋转以在其圆周表面上形成静电潜像。显影装置设有显影辊。显影辊设置成面对感光鼓，并且具有圆柱形形状。显影辊可绕其轴线转动，用于在其圆周表面上承载显影剂。显影辊设置有小直径部分。小直径部分是显影辊的圆周表面的一部分。小直径部分从显影辊的轴向端部轴向向内延伸预定长度，并且其外径小于显影辊的轴向中间部分。

6. 发明授权

US09217951B2 Image forming apparatus with leakage detecting unit for detecting leakage 有权
标题翻译：具有泄漏检测单元的图像形成装置，用于检测泄漏
公开(公告)号：US09217951B2
公开(公告)日：2015-12-22
申请号：US14643578
申请日：2015-03-10
申请人： KYOCERA Document Solutions Inc.
发明人： Masashi Fujishima , Yoshinobu Yoneima , Tamotsu Shimizu
IPC分类号： G03G15/08 , G03G15/06 , G03G15/09
CPC分类号： G03G15/065 , G03G15/0907
摘要： An image forming apparatus includes an image carrier, a developing device, a bias applying unit, a leakage detecting unit, a bias control unit and a leakage detection control unit. The developing device includes a magnetic roller and a developing roller. The magnetic roller carries a developer layer by being rotated. The developing roller receives the toner from the developer layer and supplies the toner to the image carrier. The leakage detection control unit performs a leakage detecting operation of detecting a value of an inter-peak voltage, at which the leakage occurred. The leakage detection control unit simultaneously starts the leakage detecting operation for a plurality of developing devices and performs the leakage detecting operations of the developing devices in which leakage simultaneously occurred while switching the leakage detecting operations one by one if the leakage simultaneously occurs in a plurality of developing devices at an inter-peak voltage.
摘要翻译：图像形成装置包括图像载体，显影装置，偏压施加单元，泄漏检测单元，偏置控制单元和泄漏检测控制单元。显影装置包括磁辊和显影辊。磁性辊通过旋转承载显影剂层。显影辊从显影剂层接收调色剂并将调色剂供应到图像载体。泄漏检测控制单元执行检测发生泄漏的峰间电压的值的泄漏检测操作。泄漏检测控制单元同时开始多个显影装置的泄漏检测操作，并且如果在多个显影装置中同时发生泄漏的同时一次一个地切换泄漏检测操作，则同时进行泄漏同时发生的显影装置的泄漏检测操作以峰间电压开发器件。

7. 发明授权

US12055873B2 Image forming apparatus and image formation method 有权
公开(公告)号：US12055873B2
公开(公告)日：2024-08-06
申请号：US18455662
申请日：2023-08-25
申请人： KYOCERA Document Solutions Inc.
发明人： Masashi Fujishima , Tamotsu Shimizu , Asami Sasaki , Eriko Takeuchi
IPC分类号： G03G15/08 , G03G9/08 , G03G9/113 , G03G15/09
CPC分类号： G03G15/0891 , G03G9/0823 , G03G9/1139 , G03G15/0898 , G03G15/0907 , G03G15/0848 , G03G2215/0619 , G03G2215/0634
摘要： An image forming apparatus includes a developer, a development device, and an image bearing member. The developer includes an initial developer containing an initial carrier and a replenishment developer containing a replenishment carrier. The initial carrier has a surface roughness Sa1 of at least 0.3 μm and no greater than 1.0 μm. A ratio Sa1/Sa2 of the surface roughness Sa1 of the initial carrier to a surface roughness Sa2 of the replenishment carrier is at least 1.2 and no greater than 3.4. The packing volume Vp calculated from equation (1)“Vp=100×Y/(Z×DS)” was at least 40% and no greater than 70%. In equation (1), Y represents an amount of the developer conveyed by a developer bearing member. Z represents an apparent density of the initial developer. DS represents a width of a space between the developer bearing member and the image bearing member.

8. 发明授权

US12044995B2 Image forming apparatus capable of determining failure timing of a gear used therein, and determining method of the failure timing 有权
公开(公告)号：US12044995B2
公开(公告)日：2024-07-23
申请号：US18160379
申请日：2023-01-27
申请人： KYOCERA Document Solutions Inc.
发明人： Koji Suenami , Norio Kubo , Masashi Fujishima
IPC分类号： G03G15/00
CPC分类号： G03G15/5041 , G03G15/55 , G03G15/757
摘要： An image forming apparatus includes: a gear that transmits a drive force, which is supplied from a drive unit, to a photosensitive drum; a formation processing unit that, at arrival of each of specific formation timings, uses the photosensitive drum thereby to form a to-be-detected toner image that is based on a to-be-detected image having a specific density; an acquisition processing unit that acquires a variation width of a density in the to-be-detected toner image formed by the formation processing unit; and a determination processing unit that determines a failure timing of the gear based on the variation width for each of the formation timings.

9. 发明授权

US11112732B1 Image forming device 有权
公开(公告)号：US11112732B1
公开(公告)日：2021-09-07
申请号：US17171357
申请日：2021-02-09
申请人： KYOCERA Document Solutions Inc.
发明人： Tamotsu Shimizu , Yasuhiro Tauchi , Akira Matayoshi , Masashi Fujishima
IPC分类号： G03G15/09 , G03G15/16 , G03G15/08 , G03G15/02
摘要： A bias condition determination portion of an image forming device executes each of: a first approximation expression determination operation that respectively acquires the DC component of the development current with at least three peak-to-peak voltages included in a first measurement range and determines a first expression showing a relation between the peak-to-peak voltage and the DC component of the acquired development current, a second approximation expression determination operation that respectively acquires the DC component of the development current with at least three peak-to-peak voltages included in a second measurement range larger than the first measurement range and determines a second approximation expression showing a relation between the peak-to-peak voltage and the DC component of the acquired development current, and a reference voltage determination operation that determines, as a reference peak-to-peak voltage, the peak-to-peak voltage at an intersection where the first approximation expression and the second approximation expression intersect each other.

10. 发明授权

US11048192B1 Image forming apparatus capable of suppressing occurrence of image defects in response to difference in carrier resistance and obtaining high image quality 有权
公开(公告)号：US11048192B1
公开(公告)日：2021-06-29
申请号：US17113063
申请日：2020-12-06
申请人： KYOCERA Document Solutions Inc.
发明人： Yuji Toyota , Yasuhiro Tauchi , Masashi Fujishima , Norio Kubo , Akira Matayoshi
IPC分类号： G03G15/08 , G03G15/09 , G03G15/06
摘要： Provided is an image forming apparatus capable of suppressing the occurrence of image defects in response to a difference in carrier resistance and obtaining high image quality. A developing unit has a developing roller that carries toner in a two-component developer that includes a toner and a magnetic carrier on the surface thereof, and forms a toner image on the surface of a photosensitive drum. A current detecting unit detects developing current flowing between the developing roller and the photosensitive drum when a developing voltage is applied to the developing roller by a developing power supply. When the developing voltage is applied to the photosensitive drum, a control unit derives a carrier resistance based on the developing current detected by a current detecting unit, and controls an AC amplitude of an AC voltage of the developing voltage based on the carrier resistance.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式