Arrangements or disposition of the complete process cartridge or parts thereof

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CPC
G03G21/1803

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Parent Industries

GPHYSICS G03Photography G03GELECTROGRAPHY ELECTROPHOTOGRAPHY MAGNETOGRAPHY G03G21/00Arrangements not provided for by groups G03G13/00 - G03G19/00

Current Industry

G03G21/1803Arrangements or disposition of the complete process cartridge or parts thereof

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Process cartridge and image forming apparatus
- Patent number 12,174,582
- Issue date Dec 24, 2024
- Canon Kabushiki Kaisha
- Hideki Maeshima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 12,130,580
- Issue date Oct 29, 2024
- Brother Kogyo Kabushiki Kaisha
- Shougo Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process cartridge and image forming apparatus
- Patent number 12,130,581
- Issue date Oct 29, 2024
- Canon Kabushiki Kaisha
- Hideki Maeshima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process cartridge and image forming apparatus
- Patent number 12,105,466
- Issue date Oct 1, 2024
- Canon Kabushiki Kaisha
- Akira Yoshimura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 12,066,784
- Issue date Aug 20, 2024
- Brother Kogyo Kabushiki Kaisha
- Nao Itabashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus facilitating detachment of toner cartridge...
- Patent number 12,050,431
- Issue date Jul 30, 2024
- Brother Kogyo Kabushiki Kaisha
- Shougo Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Printing apparatus to operate in a contract mode with consumable it...
- Patent number 12,044,996
- Issue date Jul 23, 2024
- Brother Kogyo Kabushiki Kaisha
- Masahiro Hayashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Image forming apparatus
- Patent number 11,994,812
- Issue date May 28, 2024
- Canon Kabushiki Kaisha
- Nobuyoshi Yoshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 11,966,192
- Issue date Apr 23, 2024
- Brother Kogyo Kabushiki Kaisha
- Shougo Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process cartridge with movable force receiving portion configured t...
- Patent number 11,940,755
- Issue date Mar 26, 2024
- JIANGXI YIBO E-TECH CO.LTD.
- Liangliang Hu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus including drum cartridge attachable to draw...
- Patent number 11,874,626
- Issue date Jan 16, 2024
- Brother Kogyo Kabushiki Kaisha
- Shougo Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photoconductor, process cartridge, and image fo...
- Patent number 11,853,004
- Issue date Dec 26, 2023
- FUJIFILM Business Innovation Corp.
- Yukimi Kawabata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process cartridge and image forming apparatus
- Patent number 11,841,673
- Issue date Dec 12, 2023
- Canon Kabushiki Kaisha
- Akira Yoshimura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photosensitive member, process cartridge, and i...
- Patent number 11,796,928
- Issue date Oct 24, 2023
- FUJIFILM Business Innovation Corp.
- Kenta Shingu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photosensitive member, process cartridge and el...
- Patent number 11,747,743
- Issue date Sep 5, 2023
- Canon Kabushiki Kaisha
- Naoaki Ichihashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 11,709,454
- Issue date Jul 25, 2023
- Brother Kogyo Kabushiki Kaisha
- Shougo Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fluorine-containing resin particle, composition, layer-shaped artic...
- Patent number 11,693,329
- Issue date Jul 4, 2023
- FUJIFILM Business Innovation Corp.
- Wataru Yamada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus facilitating detachment of toner cartridge...
- Patent number 11,693,354
- Issue date Jul 4, 2023
- Brother Kogyo Kabushiki Kaisha
- Shougo Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process cartridge and image forming apparatus
- Patent number 11,687,029
- Issue date Jun 27, 2023
- Canon Kabushiki Kaisha
- Hideki Maeshima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 11,669,041
- Issue date Jun 6, 2023
- Brother Kogyo Kabushiki Kaisha
- Shougo Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process cartridge and image forming apparatus
- Patent number 11,579,563
- Issue date Feb 14, 2023
- Canon Kabushiki Kaisha
- Akira Yoshimura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process cartridge and electrophotographic apparatus
- Patent number 11,573,499
- Issue date Feb 7, 2023
- Canon Kabushiki Kaisha
- Takeshi Murakami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electroconductive elastic body, electrophotographic member, process...
- Patent number 11,556,073
- Issue date Jan 17, 2023
- Canon Kabushiki Kaisha
- Yasuhiro Fushimoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Electrophotographic photoreceptor, process cartridge, and image for...
- Patent number 11,526,092
- Issue date Dec 13, 2022
- FUJIFILM Business Innovation Corp.
- Masahiro Iwasaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 11,526,121
- Issue date Dec 13, 2022
- Brother Kogyo Kabushiki Kaisha
- Shougo Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process cartridge and image forming apparatus
- Patent number 11,460,802
- Issue date Oct 4, 2022
- Canon Kabushiki Kaisha
- Akira Yoshimura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 11,397,404
- Issue date Jul 26, 2022
- Brother Kogyo Kabushiki Kaisha
- Shougo Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process cartridge and image forming apparatus
- Patent number 11,392,079
- Issue date Jul 19, 2022
- Canon Kabushiki Kaisha
- Hideki Maeshima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fluorine-containing resin particle, composition, layer-shaped artic...
- Patent number 11,333,987
- Issue date May 17, 2022
- FUJIFILM Business Innovation Corp.
- Wataru Yamada
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process cartridge and image forming apparatus
- Patent number 11,320,782
- Issue date May 3, 2022
- Canon Kabushiki Kaisha
- Hideki Maeshima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20240427282
- Publication date Dec 26, 2024
- Canon Kabushiki Kaisha
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20240369968
- Publication date Nov 7, 2024
- Canon Kabushiki Kaisha
- Hideki Maeshima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20240369967
- Publication date Nov 7, 2024
- Canon Kabushiki Kaisha
- Hideki Maeshima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20240272575
- Publication date Aug 15, 2024
- BROTHER KOGYO KABUSHIKI KAISHA
- Nao Itabashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20240219865
- Publication date Jul 4, 2024
- BROTHER KOGYO KABUSHIKI KAISHA
- Shougo Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20240210875
- Publication date Jun 27, 2024
- Canon Kabushiki Kaisha
- Hideki Maeshima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20240077832
- Publication date Mar 7, 2024
- Canon Kabushiki Kaisha
- Akira Yoshimura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FOR...
- Publication number 20240053689
- Publication date Feb 15, 2024
- FUJIFILM Business Innovation Corp.
- Yuto OKAZAKI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FOR...
- Publication number 20240036487
- Publication date Feb 1, 2024
- FUJIFILM Business Innovation Corp.
- Ryosuke FUJII
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FOR...
- Publication number 20240012343
- Publication date Jan 11, 2024
- FUJIFILM Business Innovation Corp.
- Kota Maki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20230333508
- Publication date Oct 19, 2023
- BROTHER KOGYO KABUSHIKI KAISHA
- Shougo Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FOR...
- Publication number 20230280668
- Publication date Sep 7, 2023
- FUJIFILM Business Innovation Corp.
- Tomoya SASAKI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20230273570
- Publication date Aug 31, 2023
- Canon Kabushiki Kaisha
- Hideki Maeshima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20230273568
- Publication date Aug 31, 2023
- BROTHER KOGYO KABUSHIKI KAISHA
- Shougo Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS FACILITATING DETACHMENT OF TONER CARTRIDGE...
- Publication number 20230259067
- Publication date Aug 17, 2023
- BROTHER KOGYO KABUSHIKI KAISHA
- Shougo SATO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20230229096
- Publication date Jul 20, 2023
- Canon Kabushiki Kaisha
- Nobuyoshi Yoshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC MEMBER AND METHOD OF PRODUCING THE MEMBER, PROC...
- Publication number 20230161275
- Publication date May 25, 2023
- Canon Kabushiki Kaisha
- Masashi Uno
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20230110629
- Publication date Apr 13, 2023
- Canon Kabushiki Kaisha
- Akira Yoshimura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20230063310
- Publication date Mar 2, 2023
- BROTHER KOGYO KABUSHIKI KAISHA
- Shougo Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE AND IMAGE-FORM...
- Publication number 20220413403
- Publication date Dec 29, 2022
- Sharp Kabushiki Kaisha
- Kohichi TORIYAMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20220350290
- Publication date Nov 3, 2022
- BROTHER KOGYO KABUSHIKI KAISHA
- Shougo Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, PROCESS CARTRIDGE, AND IMAGE FO...
- Publication number 20220308474
- Publication date Sep 29, 2022
- FUJIFILM Business Innovation Corp.
- Yukimi KAWABATA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND I...
- Publication number 20220308473
- Publication date Sep 29, 2022
- FUJIFILM Business Innovation Corp.
- Kenta SHINGU
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS FACILITATING DETACHMENT OF TONER CARTRIDGE...
- Publication number 20220206430
- Publication date Jun 30, 2022
- BROTHER KOGYO KABUSHIKI KAISHA
- Shougo SATO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20220066386
- Publication date Mar 3, 2022
- Canon Kabushiki Kaisha
- Hideki Maeshima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FLUORINE-CONTAINING RESIN PARTICLE, COMPOSITION, LAYER-SHAPED ARTIC...
- Publication number 20220066335
- Publication date Mar 3, 2022
- FUJIFILM Business Innovation Corp.
- Wataru YAMADA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20220035308
- Publication date Feb 3, 2022
- Canon Kabushiki Kaisha
- Akira Yoshimura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROCONDUCTIVE ELASTIC BODY, ELECTROPHOTOGRAPHIC MEMBER, PROCESS...
- Publication number 20210373448
- Publication date Dec 2, 2021
- Canon Kabushiki Kaisha
- Yasuhiro Fushimoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20210333748
- Publication date Oct 28, 2021
- BROTHER KOGYO KABUSHIKI KAISHA
- Shougo Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus including drum cartridge attachable to draw...
- Publication number 20210325823
- Publication date Oct 21, 2021
- BROTHER KOGYO KABUSHIKI KAISHA
- Shougo SATO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Arrangements or disposition of the complete process cartridge or parts thereof

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Process cartridge and image forming apparatus

Image forming apparatus

Process cartridge and image forming apparatus

Process cartridge and image forming apparatus

Image forming apparatus

Image forming apparatus facilitating detachment of toner cartridge...

Printing apparatus to operate in a contract mode with consumable it...

Image forming apparatus

Image forming apparatus

Process cartridge with movable force receiving portion configured t...

Image forming apparatus including drum cartridge attachable to draw...

Electrophotographic photoconductor, process cartridge, and image fo...

Process cartridge and image forming apparatus

Electrophotographic photosensitive member, process cartridge, and i...

Electrophotographic photosensitive member, process cartridge and el...

Image forming apparatus

Fluorine-containing resin particle, composition, layer-shaped artic...

Image forming apparatus facilitating detachment of toner cartridge...

Process cartridge and image forming apparatus

Image forming apparatus

Process cartridge and image forming apparatus

Process cartridge and electrophotographic apparatus

Electroconductive elastic body, electrophotographic member, process...

Electrophotographic photoreceptor, process cartridge, and image for...

Image forming apparatus

Process cartridge and image forming apparatus

Image forming apparatus

Process cartridge and image forming apparatus

Fluorine-containing resin particle, composition, layer-shaped artic...

Process cartridge and image forming apparatus

Patents Applicationslast 30 patents

PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FOR...

ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FOR...

ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FOR...

IMAGE FORMING APPARATUS

ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FOR...

PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS FACILITATING DETACHMENT OF TONER CARTRIDGE...

IMAGE FORMING APPARATUS

ELECTROPHOTOGRAPHIC MEMBER AND METHOD OF PRODUCING THE MEMBER, PROC...

PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE AND IMAGE-FORM...

IMAGE FORMING APPARATUS

ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, PROCESS CARTRIDGE, AND IMAGE FO...

ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND I...

IMAGE FORMING APPARATUS FACILITATING DETACHMENT OF TONER CARTRIDGE...

PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

FLUORINE-CONTAINING RESIN PARTICLE, COMPOSITION, LAYER-SHAPED ARTIC...

PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

ELECTROCONDUCTIVE ELASTIC BODY, ELECTROPHOTOGRAPHIC MEMBER, PROCESS...

IMAGE FORMING APPARATUS

Image forming apparatus including drum cartridge attachable to draw...