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1. 发明申请

US20230134616A1 CONTROL DEVICE, IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND STORAGE MEDIUM 有权
公开(公告)号：US20230134616A1
公开(公告)日：2023-05-04
申请号：US18046207
申请日：2022-10-13
申请人： Kanji Ubukata , Koji Kiryu , Masashi Kasamai , Jumpei Yamaguchi , Masahiro Ashikawa , Nagisa Nakamura
发明人： Kanji Ubukata , Koji Kiryu , Masashi Kasamai , Jumpei Yamaguchi , Masahiro Ashikawa , Nagisa Nakamura
IPC分类号： G03G15/00 , G03G15/01
摘要： A control device includes circuitry. The circuitry detects density unevenness of a toner image occurring according to a rotation cycle of a plurality of image bearers based on rotation phases and toner image density of the plurality of image bearers, controls rotation phases and rotation speeds of the plurality of image bearers, corrects the rotation phases and the rotation speeds of the plurality of image bearers, controls the rotation speeds of at least two of the plurality of image bearers to be a specified rotation speed, and starts a detection operation of the rotation phases of the plurality of image bearers after a difference between each of the rotation speeds of the at least two of the plurality of image bearers and the specified rotation speed falls within a specified range.

2. 发明申请

US20230126318A1 IMAGE FORMING APPARATUS 有权
公开(公告)号：US20230126318A1
公开(公告)日：2023-04-27
申请号：US18145818
申请日：2022-12-22
申请人： TOSHIBA TEC KABUSHIKI KAISHA
发明人： Takuya OTSUKA
IPC分类号： G03G15/01 , G03G15/04 , G03G21/18
摘要： An image forming apparatus includes a photoconductor, an exposure device, and a shutter assembly. The exposure device includes a light source configured to expose the photoconductor. The light source is repositionable between a proximity position at a first distance from the photoconductor and a separation position at a second distance from the photoconductor. The first distance is less than the second distance. The shutter assembly is configured to move away from the light source in response to the light source moving toward the proximity position. The shutter assembly is configured to move to cover the optical path of the light source in response to the light source moving toward the separation position.

3. 发明授权

US11618245B2 Metallic paper, printed matter, and image forming method 有权
公开(公告)号：US11618245B2
公开(公告)日：2023-04-04
申请号：US17352772
申请日：2021-06-21
申请人： Toshiyuki Kabata
发明人： Toshiyuki Kabata
IPC分类号： B32B27/10 , G03G15/01 , B32B7/023 , B32B7/12 , B32B27/36 , B32B29/06 , G03G13/01
摘要： Metallic paper for electrophotography is provided. The metallic paper comprises a substrate, a metallic luster layer over the substrate, and a polyester at a surface of the metallic paper. A ratio B/A is 0.90 or less, where A and B respectively represent peak area A and a peak area B in an infrared spectrum of the metallic paper obtained by an ATR method with a crystal of Ge, an incident angle of 45°, and one time of reflection. The wavenumber range of peak area A ranges from 1709.586 to 1741.406 cm−1, the wavenumber range of peak area. B ranges from 1630,519 to 1670.052 cm1, and a baseline wavenumber range of the peaks ranges from 1593.878 to 1850.364 cm−1.

4. 发明授权

US11614699B2 Image forming apparatus with moving mechanism to move tension roller with respect to an endless belt 有权
公开(公告)号：US11614699B2
公开(公告)日：2023-03-28
申请号：US17583616
申请日：2022-01-25
申请人： FUJIFILM Business Innovation Corp.
发明人： Satoshi Ezawa
IPC分类号： G03G15/01 , G03G15/16
摘要： An image forming apparatus includes: an annular endless belt; a drive roller, around which the endless belt is wound and which moves the endless belt; a first tension roller, around which the endless belt moved by the drive roller is wound; a biasing mechanism connected to the first tension roller and including an elastic member that applies a tension to the endless belt via the first tension roller; a second tension roller, around which the endless belt moved by the drive roller is wound at a different position from the first tension roller; and a moving mechanism connected to the second tension roller to move the second tension roller in directions closer to and away from the endless belt. A range of adjustment of a circumferential length of the endless belt by the moving mechanism is larger than a range of adjustment of the circumferential length of the endless belt by the biasing mechanism.

5. 发明申请

US20230092805A1 IMAGE FORMING APPARATUS RESTRICTING USAGE OF NON-SPECIFIC-COLOR CARTRIDGE 有权
公开(公告)号：US20230092805A1
公开(公告)日：2023-03-23
申请号：US18060074
申请日：2022-11-30
申请人： BROTHER KOGYO KABUSHIKI KAISHA
发明人： Noriaki Kishimoto
IPC分类号： G03G15/00 , G03G15/01 , G03G21/18 , G03G15/08
摘要： In an image forming apparatus, a controller performs processes in accordance with an operation mode settable to one of a first subscription mode and a second subscription mode. The first subscription mode corresponds to a first subscription in which a specific-color cartridge is a subscription subject and a non-specific-color cartridge is not the subscription subject. The second subscription mode corresponds to a second subscription in which both the specific-color cartridge and the non-specific-color cartridge are the subscription subject. The controller performs restricting usage of the non-specific-color cartridge in a case where the first subscription mode is set as the operation mode and the type information of the non-specific-color cartridge indicates the subscription type, compared to a case where the second subscription mode is set as the operation mode and the type information of the non-specific-color cartridge indicates the subscription type.

6. 发明申请

US20230083046A1 GLOSSINESS DETECTOR, IMAGE FORMING APPARATUS, AND SHEET CONVEYANCE SYSTEM 有权
公开(公告)号：US20230083046A1
公开(公告)日：2023-03-16
申请号：US17882153
申请日：2022-08-05
申请人： KONICA MINOLTA, INC.
发明人： Yasunori INABA
IPC分类号： G03G15/00 , G03G15/01
摘要： A glossiness detector includes a glossiness sensor, a glossiness corrector, and a reference plate. The glossiness corrector corrects glossiness detected by the glossiness sensor. The reference plate is used for correction processing of the glossiness sensor. Then, the glossiness corrector acquires a glossy reflection profile of the reference plate that has been detected in advance. The glossiness corrector corrects the glossiness according to the reference plate on the basis of the glossy reflection profile and a gloss distribution of the reference plate that has been detected by the glossiness sensor.

7. 发明授权

US11592768B2 Image forming apparatus and image forming method 有权
公开(公告)号：US11592768B2
公开(公告)日：2023-02-28
申请号：US17743449
申请日：2022-05-13
申请人： Takahiro Honda , Yasuo Kamada , Hiroshi Yamada
发明人： Takahiro Honda , Yasuo Kamada , Hiroshi Yamada
IPC分类号： G03G15/00 , G03G15/01 , G03G15/16
摘要： An image forming apparatus includes an image bearer, a developing unit configured to develop a latent image formed on the image bearer with a toner to form a toner image, and a transfer member including a contact area that comes in contact with the image bearer. The toner image is primary transferred from the image bearer to the transfer member. A speed difference between the image bearer and the transfer member at the contact area is 0.1% or greater but 0.8% or less. The toner has an average circularity of 0.971 or greater but 0.986 or less and a shape factor SF-2 of 110 or greater but 119 or less. The speed difference is represented by the following formula: Speed difference [%]={(V1−V2)/V2}×100 [Speed difference] where V1 is a linear speed of the image bearer, and V2 is a linear speed of the transfer member.

8. 发明申请

US20230036514A1 IMAGE FORMING APPARATUS 有权
公开(公告)号：US20230036514A1
公开(公告)日：2023-02-02
申请号：US17872899
申请日：2022-07-25
申请人： CANON KABUSHIKI KAISHA
发明人： Hideto Chino , Chikara Imaizumi
IPC分类号： G03G15/16 , G03G15/01
摘要： An image forming apparatus includes an intermediate transfer member, first and second transfer members, and a control unit. The control unit includes a first state where both the first and second transfer members are separated from the intermediate transfer member, a second state where the first transfer member contacts the intermediate transfer member and the second transfer member is separated from the intermediate transfer member, and a third state where both the first and second transfer members contact the intermediate transfer member. The control unit controls the driving member to move the moving unit, controls switch the first state to the second state and thereafter switch the second state to the third state. A rotation speed of the driving member when the second state is switched to the third state is lower than a rotation speed of the driving member when the first state is switched to the second state.

9. 发明授权

US11550241B1 Image forming apparatus 有权
公开(公告)号：US11550241B1
公开(公告)日：2023-01-10
申请号：US17665075
申请日：2022-02-04
申请人： FUJIFILM Business Innovation Corp.
发明人： Tomoaki Yoshioka , Mitsuaki Kuroda
IPC分类号： G03G15/20 , G03G15/16 , G03G15/01
摘要： An image forming apparatus includes: a transfer cylinder that is supported on an image forming apparatus body and rotates; a rotating member that is coaxial with the transfer cylinder and rotates integrally with the transfer cylinder; a circulating member that is provided with a holding part that holds a front end portion of a recording medium, is suspended around the rotating member, and transports the recording medium by circulating as the rotating member rotates; a transfer unit that is supported on the image forming apparatus body and has a transfer belt that transfers an image on a recording medium transported by the circulating member by sandwiching the recording medium together with the transfer cylinder at a nip position; a first image forming part that is supported on the image forming apparatus body and forms the image on the transfer belt; and a second image forming part that is supported on the image forming apparatus body at a position lower than the first image forming part and forms the image on the transfer belt. Mass of the second image forming part is larger than mass of the first image forming part.

10. 发明授权

US11526109B2 Image forming apparatus restricting usage of non-specific-color cartridge 有权
公开(公告)号：US11526109B2
公开(公告)日：2022-12-13
申请号：US17372606
申请日：2021-07-12
申请人： BROTHER KOGYO KABUSHIKI KAISHA
发明人： Noriaki Kishimoto
IPC分类号： G03G15/00 , G03G15/01 , G03G21/18 , G03G15/08
摘要： In an image forming apparatus, a controller performs processes in accordance with an operation mode settable to one of a first subscription mode and a second subscription mode. The first subscription mode corresponds to a first subscription in which a specific-color cartridge is a subscription subject and a non-specific-color cartridge is not the subscription subject. The second subscription mode corresponds to a second subscription in which both the specific-color cartridge and the non-specific-color cartridge are the subscription subject. The controller performs restricting usage of the non-specific-color cartridge in a case where the first subscription mode is set as the operation mode and the type information of the non-specific-color cartridge indicates the subscription type, compared to a case where the second subscription mode is set as the operation mode and the type information of the non-specific-color cartridge indicates the subscription type.

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