Cartridge systems

Industry

CPC
G03G2221/18

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Parent Industries

GPHYSICS G03Photography G03GELECTROGRAPHY ELECTROPHOTOGRAPHY MAGNETOGRAPHY G03G2221/00Processes not provided for by group G03G2215/00

Current Industry

G03G2221/18Cartridge systems

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Method of continuing use of a contract cartridge at an image formin...
- Patent number 12,242,211
- Issue date Mar 4, 2025
- Brother Kogyo Kabushiki Kaisha
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Cartridge including holder that holds electrical contact surface an...
- Patent number 12,242,213
- Issue date Mar 4, 2025
- Brother Kogyo Kabushiki Kaisha
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cartridge including a memory mounting portion and image forming app...
- Patent number 12,242,224
- Issue date Mar 4, 2025
- Canon Kabushiki Kaisha
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Replacing photoconductor drums associated with image forming appara...
- Patent number 12,235,603
- Issue date Feb 25, 2025
- Toshiba Tec Kabushiki Kaisha
- Yasunari Miyazaki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Image forming apparatus with a transfer device
- Patent number 12,222,672
- Issue date Feb 11, 2025
- Canon Kabushiki Kaisha
- Chikara Imaizumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and process cartridge including protrusion...
- Patent number 12,222,673
- Issue date Feb 11, 2025
- Canon Kabushiki Kaisha
- Akira Yoshimura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cartridge, toner cartridge, and image forming apparatus
- Patent number 12,222,674
- Issue date Feb 11, 2025
- Canon Kabushiki Kaisha
- Yosuke Kashiide
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cartridge and image forming apparatus including a recessed backgrou...
- Patent number 12,204,271
- Issue date Jan 21, 2025
- Canon Kabushiki Kaisha
- Yusaku Makino
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having a drawer
- Patent number 12,189,332
- Issue date Jan 7, 2025
- Brother Kogyo Kabushiki Kaisha
- Shougo Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method for error handling in the toner refill process
- Patent number 12,181,805
- Issue date Dec 31, 2024
- Hewlett-Packard Development Company, L.P.
- Mok-Hwa Lim
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Printer
- Patent number 12,181,825
- Issue date Dec 31, 2024
- Brother Kogyo Kabushiki Kaisha
- Hiroyuki Shingai
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Image-forming device having guide to guide drawer supporting develo...
- Patent number 12,174,581
- Issue date Dec 24, 2024
- Brother Kogyo Kabushiki Kaisha
- Motoaki Mushika
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer cartridge
- Patent number 12,174,557
- Issue date Dec 24, 2024
- Brother Kogyo Kabushiki Kaisha
- Yuwen Wang
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner cartridge including memory holder cover having pawl engaged w...
- Patent number 12,164,263
- Issue date Dec 10, 2024
- Brother Kogyo Kabushiki Kaisha
- Ryuji Noda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Drum cartridge including drum contact movable in accordance with at...
- Patent number 12,164,261
- Issue date Dec 10, 2024
- Brother Kogyo Kabushiki Kaisha
- Yuwen Wang
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photosensitive member, process cartridge, and e...
- Patent number 12,153,376
- Issue date Nov 26, 2024
- Canon Kabushiki Kaisha
- Shuntaro Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photosensitive member, process cartridge and el...
- Patent number 12,153,370
- Issue date Nov 26, 2024
- Canon Kabushiki Kaisha
- Tomohito Ishida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming device
- Patent number 12,147,189
- Issue date Nov 19, 2024
- Brother Kogyo Kabushiki Kaisha
- Kazuna Taguchi
- 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
Toner cartridge with a wall having outlets through which a paddle a...
- Patent number 12,130,569
- Issue date Oct 29, 2024
- Toshiba Tec Kabushiki Kaisha
- Takaho Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photoreceptor, process cartridge, and image for...
- Patent number 12,117,741
- Issue date Oct 15, 2024
- FUJIFILM Business Innovation Corp.
- Hiroko Kobayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having improved mountability of a cartridge...
- Patent number 12,111,610
- Issue date Oct 8, 2024
- Canon Kabushiki Kaisha
- Takeo Kawanami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photosensitive member unit and development unit
- Patent number 12,111,608
- Issue date Oct 8, 2024
- Canon Kabushiki Kaisha
- Masao Uyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Operation assisting tool and image forming apparatus including the...
- Patent number 12,105,464
- Issue date Oct 1, 2024
- Ricoh Company, Ltd.
- Ippei Kimura
- 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
Process cartridge and image forming apparatus
- Patent number 12,099,325
- Issue date Sep 24, 2024
- Canon Kabushiki Kaisha
- Noriyuki Komatsu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and method of controlling the same
- Patent number 12,085,872
- Issue date Sep 10, 2024
- Brother Kogyo Kabushiki Kaisha
- Takashi Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process cartridge having drum cartridge and developing cartridge in...
- Patent number 12,085,891
- Issue date Sep 10, 2024
- Brother Kogyo Kabushiki Kaisha
- Koji Abe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus including a detachable unit with positionin...
- Patent number 12,072,663
- Issue date Aug 27, 2024
- Canon Kabushiki Kaisha
- Kei Hayashida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 12,061,436
- Issue date Aug 13, 2024
- Brother Kogyo Kabushiki Kaisha
- Shougo Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
CARRIER FOR ELECTROSTATIC IMAGE DEVELOPMENT, ELECTROSTATIC IMAGE DE...
- Publication number 20250053108
- Publication date Feb 13, 2025
- FUJIFILM Business Innovation Corp.
- Yasuo KADOKURA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAP...
- Publication number 20250044716
- Publication date Feb 6, 2025
- Canon Kabushiki Kaisha
- NAOTO KAMEYAMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ADAPTER, CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20250021048
- Publication date Jan 16, 2025
- ZHUHAI PANTUM ELECTRONICS CO., LTD.
- Feng CHEN
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING CARTRIDGE
- Publication number 20250013189
- Publication date Jan 9, 2025
- E-Z INK TECHNOLOGY CO., LTD
- Yu ZHU
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING DEVICE
- Publication number 20250013193
- Publication date Jan 9, 2025
- BROTHER KOGYO KABUSHIKI KAISHA
- Kazuna TAGUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20250013192
- Publication date Jan 9, 2025
- Canon Kabushiki Kaisha
- ISAO KOISHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PHOTOSENSITIVE MEMBER UNIT AND DEVELOPMENT UNIT
- Publication number 20250004418
- Publication date Jan 2, 2025
- Canon Kabushiki Kaisha
- Masao Uyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20250004420
- Publication date Jan 2, 2025
- KYOCERA DOCUMENT SOLUTIONS INC.
- Satoshi ANDO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20240427282
- Publication date Dec 26, 2024
- Canon Kabushiki Kaisha
- Akira Yoshimura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROCESS CARTRIDGE WITH TONER RECEIVING UNIT AT PIVOT AXIS OF DEVELO...
- Publication number 20240427283
- Publication date Dec 26, 2024
- Hewlett-Packard Development Company, L.P.
- Sanghoon LEE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FOR...
- Publication number 20240419091
- Publication date Dec 19, 2024
- FUJIFILM Business Innovation Corp.
- Yuto Okazaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARTRIDGE AND IMAGE FORMING APPARATUS INCLUDING A RECESSED BACKGROU...
- Publication number 20240411263
- Publication date Dec 12, 2024
- Canon Kabushiki Kaisha
- Yusaku MAKINO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20240411266
- Publication date Dec 12, 2024
- Canon Kabushiki Kaisha
- Noriyuki Komatsu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FOR...
- Publication number 20240411236
- Publication date Dec 12, 2024
- FUJIFILM Business Innovation Corp.
- Ryosuke Fujii
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FOR...
- Publication number 20240377768
- Publication date Nov 14, 2024
- FUJIFILM Business Innovation Corp.
- Ryota KANEKO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS INCLUDING A DETACHABLE UNIT WITH POSITIONIN...
- Publication number 20240377785
- Publication date Nov 14, 2024
- Canon Kabushiki Kaisha
- Kei Hayashida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS HAVING IMPROVED MOUNTABILITY OF A CARTRIDGE...
- Publication number 20240369966
- Publication date Nov 7, 2024
- Canon Kabushiki Kaisha
- Takeo Kawanami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND E...
- Publication number 20240353770
- Publication date Oct 24, 2024
- Canon Kabushiki Kaisha
- AKIHIRO MARUYAMA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
TONER CONTAINER HANDLE
- Publication number 20240353774
- Publication date Oct 24, 2024
- Lexmark International, Inc.
- EMILY STEFANO ADAMS
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND EL...
- Publication number 20240345497
- Publication date Oct 17, 2024
- Canon Kabushiki Kaisha
- MASASHI NISHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC PHOTORECEPTO...
- Publication number 20240345498
- Publication date Oct 17, 2024
- MITSUBISHI CHEMICAL CORPORATION
- Tsukasa HASEGAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS INCLUDING COUPLING MEMBER SELECTIVELY COUPL...
- Publication number 20240345537
- Publication date Oct 17, 2024
- BROTHER KOGYO KABUSHIKI KAISHA
- Yasushi OKABE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DRUM CARTRIDGE INCLUDING ELECTRICAL CONTACT SURFACE POSITIONED AT O...
- Publication number 20240345538
- Publication date Oct 17, 2024
- BROTHER KOGYO KABUSHIKI KAISHA
- Koji ABE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND E...
- Publication number 20240345496
- Publication date Oct 17, 2024
- Canon Kabushiki Kaisha
- AKIHIRO MARUYAMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARTRIDGE INCLUDING PHOTOSENSITIVE DRUM AND DEVELOPING ROLLER THAT...
- Publication number 20240345536
- Publication date Oct 17, 2024
- Canon Kabushiki Kaisha
- Toshiaki TAKEUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND I...
- Publication number 20240337957
- Publication date Oct 10, 2024
- KYOCERA Document Solutions Inc.
- Junichiro OTSUBO
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
IMAGE-FORMING APPARATUS PROVIDED WITH MECHANISM FOR OPENING AND CLO...
- Publication number 20240329573
- Publication date Oct 3, 2024
- BROTHER KOGYO KABUSHIKI KAISHA
- Saya MINOSHIMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FOR...
- Publication number 20240329558
- Publication date Oct 3, 2024
- FUJIFILM Business Innovation Corp.
- Hiroko Kobayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FOR...
- Publication number 20240319661
- Publication date Sep 26, 2024
- FUJIFILM Business Innovation Corp.
- Yuki YONETOKU
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DRUM CARTRIDGE INCLUDING ELECTRICAL CONTACT SURFACE MOVABLE RELATIV...
- Publication number 20240319664
- Publication date Sep 26, 2024
- BROTHER KOGYO KABUSHIKI KAISHA
- Nao ITABASHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Cartridge systems

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Method of continuing use of a contract cartridge at an image formin...

Cartridge including holder that holds electrical contact surface an...

Cartridge including a memory mounting portion and image forming app...

Replacing photoconductor drums associated with image forming appara...

Image forming apparatus with a transfer device

Image forming apparatus and process cartridge including protrusion...

Cartridge, toner cartridge, and image forming apparatus

Cartridge and image forming apparatus including a recessed backgrou...

Image forming apparatus having a drawer

Method for error handling in the toner refill process

Printer

Image-forming device having guide to guide drawer supporting develo...

Developer cartridge

Toner cartridge including memory holder cover having pawl engaged w...

Drum cartridge including drum contact movable in accordance with at...

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

Electrophotographic photosensitive member, process cartridge and el...

Image forming device

Image forming apparatus

Toner cartridge with a wall having outlets through which a paddle a...

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

Image forming apparatus having improved mountability of a cartridge...

Photosensitive member unit and development unit

Operation assisting tool and image forming apparatus including the...

Process cartridge and image forming apparatus

Process cartridge and image forming apparatus

Image forming apparatus and method of controlling the same

Process cartridge having drum cartridge and developing cartridge in...

Image forming apparatus including a detachable unit with positionin...

Image forming apparatus

Patents Applicationslast 30 patents

CARRIER FOR ELECTROSTATIC IMAGE DEVELOPMENT, ELECTROSTATIC IMAGE DE...

ELECTROPHOTOGRAPHIC MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAP...

ADAPTER, CARTRIDGE, AND IMAGE FORMING APPARATUS

DEVELOPING CARTRIDGE

IMAGE FORMING DEVICE

CARTRIDGE AND IMAGE FORMING APPARATUS

PHOTOSENSITIVE MEMBER UNIT AND DEVELOPMENT UNIT

IMAGE FORMING APPARATUS

PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

PROCESS CARTRIDGE WITH TONER RECEIVING UNIT AT PIVOT AXIS OF DEVELO...

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

CARTRIDGE AND IMAGE FORMING APPARATUS INCLUDING A RECESSED BACKGROU...

PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

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

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

IMAGE FORMING APPARATUS INCLUDING A DETACHABLE UNIT WITH POSITIONIN...

IMAGE FORMING APPARATUS HAVING IMPROVED MOUNTABILITY OF A CARTRIDGE...

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

TONER CONTAINER HANDLE

ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND EL...

ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC PHOTORECEPTO...

IMAGE FORMING APPARATUS INCLUDING COUPLING MEMBER SELECTIVELY COUPL...

DRUM CARTRIDGE INCLUDING ELECTRICAL CONTACT SURFACE POSITIONED AT O...

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

CARTRIDGE INCLUDING PHOTOSENSITIVE DRUM AND DEVELOPING ROLLER THAT...

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

IMAGE-FORMING APPARATUS PROVIDED WITH MECHANISM FOR OPENING AND CLO...

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

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

DRUM CARTRIDGE INCLUDING ELECTRICAL CONTACT SURFACE MOVABLE RELATIV...