Brother Kogyo Kabushiki-Kaisha

Nidek Co., Ltd.

Brother Industries, Ltd.

Shizuoka Prefecture

Koji Abe

Takashi Shimizu

Naoya Kamimura

Yasuo Fukamachi

Kazuna Taguchi

Motoaki Mushika

Junichi Hashimoto

Tomoya Ichikawa

Minoru Inuzuka

Atsushi Fukaya

Motoshi Tanaka

Takuya Kanda

Yasushi Okabe

Junichi Yokoi

Ryoji Shibata

Isao Kishi

Shota Shinoya

Keita Inoue

Hideshi Nishiyama

Keita Shimizu

Masatoshi Shiraki

Yohei Hashimoto

Hideaki Deguchi

Masaaki Furukawa

Shinya Kusuda

Takashi Yasuda

Masanari Yoshikawa

Takuya Amaike

Yoshihiro Oyama

Masaki Yasuda

Tomohiro Wada

Yoshiyuki Nagatsu

Aya Tamura

Naohide Isogai

Hiroyasu Ueta

Hirokazu Hyodo

Haruyo Endo

Yoshiki Mori

Jun Hatta

Shinji Ogawa

Mitsuyoshi Matsuda

Takahisa Shibamoto

Shigenobu Nakamura

Akira Tezuka

Hironori Ebi

A drum unit includes: a photosensitive drum rotatable about a drum axis extending in a first direction; a drum frame to which a developing cartridge including a developing roller is attachable; and a pressure member. The drum frame includes a guide frame positioned at one end portion in the first direction of the drum frame. The guide frame has a guide groove allowing a portion of the developing cartridge to be inserted therein. The pressure member is provided at the guide frame at a position inward relative to the guide groove in the first direction. The pressure member is pivotally movable about a pressure axis extending in the first direction. The pressure member presses the developing cartridge toward the photosensitive drum in a state where the developing cartridge is attached to the drum frame.

Drum unit including photosensitive drum, drum frame, and pressure member pressing developing cartridge attached to drum frame toward photosensitive drum

A scanning optical device includes a semiconductor laser, a coupling lens, a condenser lens, a deflector, a scanning optical system, a frame, and a first cover. The coupling lens converts light emitted by the first semiconductor laser to a light beam. The light beam received from the coupling lens is concentrated through the condenser lens. The deflector includes a polygon mirror configured to deflect the light beam received from the condenser lens. The scanning optical system directs the light beam deflected by the deflector toward an image plane. The deflector and the scanning optical system are fixed to the frame. The first cover covers at least a portion of the frame on which the deflector is located. The frame includes a wall having an opening through which a light beam traveling toward the polygon mirror passes. The condenser lens closes the opening.

Scanning optical device

A dyeing system includes a conveyance device, a reader, a dye fixing device, and a controller. The conveyance device conveys a conveyance unit including the resin body. The reader reads information relating to the conveyance unit. The dye fixing device heats the resin body in the conveyance unit conveyed by the conveyance device and fixes a dye adhering to a surface of the resin body, on the resin body. The controller acquires a parameter for a process executed to the resin body in the conveyance unit, based on the information read by the reader. The controller controls the dye fixing device based on the acquired parameter.

Dyeing system

A scanning optical device includes a light source, a deflector, a scanning optical system, and a frame. The deflector includes a polygon mirror rotatable about an axis extending in a first direction to deflect light beam from the light source. The scanning optical system is configured to form an image on an image plane using the light beam from the polygon mirror. The light source, the deflector, and the scanning optical system are fixed to the frame. The frame includes: a base wall on which the deflector is mounted; a first wall extending from the base wall toward one side in the first direction; a crossing wall extending in a direction crossing the first direction from the first wall; a second wall extending toward another side in the first direction from the crossing wall; and a positioning part provided on the crossing wall.

Scanning optical device having positioning part on reinforced wall for positioning of the device relative to main body of image-forming apparatus

A dyeing data management method is performed between dyeing systems disposed at different locations. The method includes a first dyeing step of dyeing a lens in a first dyeing system, a first acquisition step of acquiring first result color information of the lens dyed in the first dyeing system, a dyeing data creation step of creating dyeing data based on a discharge amount of dye in the first dyeing step and the first result color information, a data provision step of providing the dyeing data for dyeing a lens to a predetermined color from the first dyeing system to a second dyeing system, a second dyeing step of performing dyeing of a lens according to the provided dyeing data in the second dyeing system, and a second acquisition step of acquiring second result color information of the lens dyed in the second dyeing system.

Dyeing data management method and dyeing system

A scanning optical device includes: a first semiconductor laser; a second semiconductor laser; a first coupling lens configured to convert light from the first semiconductor laser into a first light beam; a second coupling lens configured to convert light from the second semiconductor laser into a second light beam; a deflector configured to deflect the first light beam and the second light beam; a first optical sensor configured to detect the deflected first light beam; a second optical sensor configured to detect the deflected second light beam; a first scanning optical system configured to form an image using the deflected first light beam; a second scanning optical system configured to form an image using the deflected second light beam; and a circuit board. The first semiconductor laser, the second semiconductor laser, the first optical sensor, and the second optical sensor are mounted on the circuit board.

Scanning optical device including first semiconductor laser, second semiconductor laser, first optical sensor, and second optical sensor which are mounted on circuit board

A drum cartridge includes: a drum frame to which a developing cartridge including a storage medium having an electrical contact surface is detachably attachable; a photosensitive drum; a transfer roller; and a conveying roller. The drum is rotatable about a first axis extending in a first direction and positioned at one end portion of the frame in a second direction. The transfer roller is rotatable about a second axis extending in the first direction and in contact with the drum. The conveying roller is rotatable about a third axis extending in the first direction and separated from the transfer roller in the second direction. A first opening of the frame is positioned between the transfer roller and the conveying roller in the second direction. The electrical contact surface is exposed to an outside through the first opening in a case where the developing cartridge is attached to the frame.

Drum cartridge and developing cartridge capable of suppressing variation in position of electrical contact surface

A drum cartridge includes a photosensitive drum and a drum frame holding the photosensitive drum. The drum frame is configured to hold a developing cartridge. The drum frame includes a first metal frame, a second metal frame, and a first resin frame between the first metal frame and the second metal frame. The developing cartridge includes a developing roller, a developing frame for holding the developing roller, and a separation shaft movable between a first position and a second position. The first resin frame includes a first guide configured to position the developing cartridge at an attachment position and a first separation contact surface configured to come into contact with the separation shaft when the separation shaft is located at the second position.

Drum cartridge having separation shaft for moving developing frame away from photosensitive drum

A drum cartridge includes: a drum frame to which a developing cartridge is attachable; a photosensitive drum; and a first storage medium. The drum frame has one end portion and another end portion spaced apart from the one end portion in a first direction. The photosensitive drum is rotatable about a first axis extending in a second direction and is positioned at the one end portion of the drum cartridge. The first storage medium includes a first electrical contact surface. The first storage medium is positioned at an outer surface of the drum frame, the outer surface being exposed in a state where the developing cartridge is attached to the drum frame.

Drum cartridge including electrical contact surface positioned at outer surface of drum frame

A developing cartridge is attachable to a drawer that is movable in a first direction relative to a main housing of an image forming apparatus. The developing cartridge includes: a casing having a toner chamber; and a developing roller positioned at one end of the casing in a second direction and rotatable about an axis extending in a third direction. The casing includes: a recessed portion recessed from an outer surface of the casing toward the developing roller; a first wall extending in the second direction; and a first boss positioned inside the toner chamber. The recessed portion is positioned at a center in the third direction of another end of the casing in the second direction. The first wall and the second wall form the toner chamber. The first boss extends from the first wall to be connected to the second wall.

Developing cartridge including casing that has recessed portion and boss connecting two opposing walls of casing inside toner chamber, and image forming apparatus using the same

A dye-deposited base body manufacturing apparatus manufactures a dye-deposited base body. The dye-deposited base body is used in a dyeing step of dyeing a resin body. A dye to be transferred to the resin body is deposited to a base body. The dye-deposited base body manufacturing apparatus is provided with a printing device, a conveyance device, and a base body movement device. The printing device prints a dye for dyeing the resin body on the base body. The conveyance device conveys a dyeing tray on which the dye-deposited resin body on which the dye is printed by the printing device is placed. The base body movement device moves the dye-deposited base body from a printing position by the printing device to a side of the conveyance device.

Dye-deposited base body manufacturing apparatus and dyeing system

A developing cartridge attachable to a drum cartridge includes: a developing roller; a casing including a first frame supporting the developing roller and a second frame fixed to the first frame; and a separation member movable in a first direction relative to the casing. The separation member includes: a separation shaft; and a first inclined surface positioned at one end portion in the first direction of the separation member. The first frame has a load receiving surface facing the separation shaft in a second direction crossing the first direction. The load receiving surface makes contact with the separation shaft to receive a load directed in the second direction from the separation shaft when the separation member moves in the first direction and the first inclined surface makes contact with the drum cartridge in a state where the developing cartridge is attached to the drum cartridge.

Developing cartridge including first frame supporting developing roller and having load receiving surface, and second frame fixed to first frame

A developing cartridge includes: a casing configured to accommodate therein toner; a developing roller; a supply roller configured to supply the toner to the developing roller; a layer thickness regulation blade in contact with a circumferential surface of the developing roller; a developing electrode electrically connected to the developing roller; and a supply electrode electrically connected to the supply roller and the layer thickness regulation blade. The supply electrode includes: an electrode member electrically connected to a rotation shaft of the supply roller and movable in a direction perpendicular to the rotation shaft; and a connection member in contact with and electrically connecting the electrode member and the layer thickness regulation blade. The electrode member is movable relative to the connection member in the direction perpendicular to the rotation shaft in a state where the electrode member is in contact with the connection member.

Developing cartridge including supply roller, layer thickness regulation blade, and supply electrode electrically connected to both supply roller and layer thickness regulation blade

A process cartridge includes a drum cartridge that has a drum frame having a a second end portion spaced apart from a first end portion in a first direction and a fourth end portion spaced apart from a third end portion in a second direction, a photosensitive drum rotatable about a first axis extending in the second direction and positioned at the first end portion of the drum frame, and a first storage medium that includes a first electrical contact surface. A developing cartridge is detachably attachable to the drum frame and has a developing roller that is rotatable about a second axis extending in the second direction and a second storage medium including a second electrical contact surface. The first electrical contact surface is positioned closer to the second end portion of the drum frame than the photosensitive drum is to the second end portion of the drum frame in the first direction, and in a state where the developing cartridge is attached to the drum cartridge, the second electrical contact surface is positioned closer to the second end portion of the drum frame than the photosensitive drum is to the second end portion of the drum frame in the first direction.

Process cartridge having drum cartridge and developing cartridge including first and second electrical contact surfaces

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Nagoya, Japan

Koji Abe