Kyocera Mita Corporation

Kyocera Document Solutions Inc.

Mita Industrial Co., Ltd.

Hiroyoshi Omura

Tomohide Hozono

Hiroaki Ohashi

Hideki Ishida

Masayuki Yamada

Koji Izumi

Naozumi Ogawa

Yoshihiro Andou

Yuuya Shimohara

Yasuhiko Sakaguchi

Hiromi Yamaguchi

Masaru Hatano

An image forming apparatus includes a housing frame, a scanner frame, a first support frame, a second support frame, and a connecting member. The second support frame supports the scanner frame. The second support frame includes a horizontal support member and a vertical support member. The scanner frame includes a member to be connected. The insertion plate of the connecting member penetrates through the opening of the member to be connected in the first direction, and is inserted through the opening of the vertical support member. The insertion plate has an upper face located in contact with an upper end face of the opening of the member to be connected, at least via one position, and has a lower face located in contact with a lower end face of the opening of the vertical support member, at least via two positions spaced from each other in the second direction.

Image forming apparatus in which scanner frame and support frame are connected and fixed

An image forming apparatus includes a discharge guide provided downstream of a fixing device in a sheet transport direction, and configured to guide a sheet on which a toner image has been fixed, to a sheet discharge port formed in a main body of the image forming apparatus, the discharge guide including an air vent for cooling the sheet, and a cooling fan that blows air to the sheet passing the discharge guide, through the air vent. A fixing device housing includes an air inlet that allows an airflow generated by the cooling fan toward the sheet and reflected thereby, to be introduced into inside the fixing device housing.

Image forming apparatus that prevents contamination of charge neutralizer provided in fixing device

An electric device includes a substrate, a first wire, a filter, a storage portion, and a holding member. The first wire includes a base end portion that is electrically connected with a electronic circuit of the substrate. The storage portion includes a bottom portion and an inner peripheral portion. The storage portion stores the filter with the first wire inserted in a through hole thereof and stores a specific portion of the first wire. The holding member protrudes from the inner peripheral portion. The holding member includes an interposed portion and a position regulating portion. The position regulating portion abuts on the filter, from two sides of a second direction that is perpendicular to the first direction, and from one side of a third direction that is perpendicular to the first direction and the second direction, in such a way as to regulate a position of the filter.

Electric device and display device

A developing device includes a bottom cover part that covers a bottom surface of a developing container and forms an air passage extending in a front and rear direction between the bottom surface and the bottom cover part, an air blowing fan that supplies air into the air passage, and an air receiving port that is provided at a front end part of the air passage and receives the air supplied from the outside of the air passage by the air supply unit. Air discharge ports are provided on wall parts on both right and left sides forming the air passage and discharge the air flowing into the air passage to the outside of the air passage.

Developing device and image forming apparatus including the same

A fixing device includes a fixing member, a pressuring member, a separating claw separating a recording medium from the fixing member and a moving mechanism of the separating claw. The moving mechanism includes a biasing member, coaxial two input gears having different numbers of teeth, a bearing depression and a shaft protrusion. The two input gears rotate according to rotation the fixing or pressuring member while shifting by a difference of the numbers of teeth for each rotation. The bearing depression is depressed in one input gear, and has an inclined contact face. The shaft protrusion is protruded from the other input gear, and has an inclined distal end face contact with the contact face. The two input gears rotate to repeat coincidence of inclination directions of the contact face and the distal end face and shifting the inclination directions, and reciprocatingly move the separating claw.

Fixing device having reciprocating separating claw and image forming apparatus

A drum unit of an image forming apparatus including a flange that is integrally provided with the photoconductor drum. A frame rotatably supports the photoconductor drum and covers its side. A gear portion is integrally formed with an outer circumferential surface of the flange. An outer diameter of the gear portion is larger than a diameter size of the photoconductor drum. A guide member is provided on an upper surface of the frame and guides the edge portion upward when the drum unit is pulled out of the apparatus main body. An upper surface of the guide member includes first and second guide surfaces. The first guide surface is located more on a side of a center of the photoconductor drum than the edge position, and the second guide surface is located more on the side of the insertion direction than the edge position.

Image forming apparatus including photoconductor drum

An image forming apparatus includes an image carrier, a first guide portion, a developing portion, and a second guide portion. The first guide portion forms a first flow path in which toner removed from the image carrier is flowed downward with respect to a horizontal direction. The developing portion visualizes an electrostatic latent image formed on a surface of the image carrier, with developer including at least toner and carrier. The second guide portion forms a second flow path in which the developer in the developing portion is flowed diagonally downward with respect to the horizontal direction and guided to the first flow path.

Image forming apparatus for forming image by using developer including toner and carrier

A fixing device includes a temperature detection unit that detects temperature associated with temperature of an abutting section of a fixing roller and a pressing roller, and a control unit that controls a driving motor based on detection temperature by the temperature detection unit. When the fixing device is activated, if it is determined that detection temperature by the temperature detection unit is not equal to or less than predetermined temperature, the control unit drives the driving motor at a setting speed set in advance, and if it is determined that the detection temperature is equal to or less than the predetermined temperature K, the control unit drives the driving motor at a predetermined low speed lower than the setting speed.

Fixing device

An image forming apparatus includes a rail member and an intermediate transferring device. The rail member mounted to a frame. The intermediate transferring device attachably/detachably mounted to the rail member. The intermediate transferring device includes a toner carrier, a cleaning member, a first transmission mechanism and a second transmission mechanism. The toner carrier is driven to be rotated by a driving source, and configured to carry a toner image. The cleaning member is driven to be rotated by the driving source, and configured to remove a toner which remains on the toner image carrier. The first transmission mechanism configured to transmit a driving force of the driving source to the toner image carrier. The second transmission mechanism configured to transmit the driving force of the driving source to the cleaning member. The first transmission mechanism and the second transmission mechanism are arranged between the frame and the rail member.

Image forming apparatus

A drive unit includes a motor being a drive source, a velocity reduction gear for reducing the revolution of the motor, an output shaft for connecting the velocity reduction gear to the rotation shaft of a photosensitive drum, and a velocity detection mechanism including an encoder and sensor members and detecting the revolution of the output shaft. The velocity reduction gear and the velocity detection mechanism are placed in a unit housing including a housing body made of a resin with one end opened and a support plate made of metal closing the opening of the housing body, and the output shaft is rotatably supported by the housing body and the support plate.

Drive unit and image forming apparatus equipped with the same

A drive joint mechanism includes a drive shaft () and a driven shaft () coupled coaxially to the drive shaft (). A coupling () on the drive shaft () or the driven shaft () has pin-engaging grooves () and at least one pyramid-shaped pin-guide () between adjacent pin-engaging grooves (). An engagement pin () is provided on the other of the drive shaft () and the driven shaft () and engages the pin-engaging groove (). The engagement pin () contacts the pin-guide () while coupling the drive shaft () and the driven shaft (). Thus, at least one of the drive shaft () and the driven shaft () is rotated by a pressing force exerted in the axial direction by the driven shaft () so that the pin-guide () guides the engagement pin () into the pin-engaging groove ().

Drive joint mechanism and image forming apparatus using the same

An image forming apparatus is provided with a first and a second sheet feeding sections for accommodating sheets before printing in a stacked manner; a first sheet conveying section including first conveying members and adapted to convey a sheet received from the first sheet feeding section; a second sheet conveying section including second conveying members and adapted to convey a sheet received from the second sheet feeding section; a plurality of image forming units each including driven members and adapted to form toner images of different colors; a first driving source for driving the first conveying members; and a second driving source for driving the second conveying members. Some of the driven members are driven by the first driving source and others are driven by the second driving source.

An image forming apparatus () according to the present invention includes a main frame (B) which supports an image forming unit (). An electric charger () is provided as a high voltage unit on a front side (D) of the main frame (B), and a high voltage circuit board () for applying a high voltage to the electric charger () is provided on a rear side (D) of the main frame (B) A cover () is provided as an insulative member on the high voltage circuit board () in opposed relation to the main frame (B) for electrically isolating the high voltage circuit board () from the main frame (B). The high voltage circuit board () is fixed directly to the main frame (B) by the cover (), and electrically connected to the electric charger via a resilient connector ().

Image forming apparatus having high voltage circuit board and an insulative cover

An image forming unithas a main bodyand an opening unitthat can be opened and closed with respect to the main body. An installation unitis provided to install the secondary transfer rollerin the opening unitso that a secondary transfer rollerof the opening unitcan move within a predetermined space within a bearing holder. When the opening unitis closed, the secondary transfer rollerpresses against an opposing rollerof the main body. A groovein the main bodyis formed in a direction different from a trajectory on which the shaftof the secondary transfer rollermoves when closing the opening unit. The shaftof the secondary transfer rolleris inserted into the groovewhile moving within the predetermined space.

Image forming device

An image forming apparatus () according to the present invention includes a high voltage circuit board () and a driving unit (). A frame (B) is provided in the apparatus () to support an image forming unit (). The frame (B) has a partition face (), which defines a boundary between an inner side (D) and an outer side (D) and faces toward the outer side (D). An electric discharger () and driving mechanisms () are provided on the inner side (D) inward of the partition face (). The high voltage circuit board () and the driving unit () for operating the driving mechanisms () are provided on the outer side (D) outward of the partition face (). The high voltage circuit board () is fixed directly to the partition face () on the outer side (D). The driving unit () is fixed to the partition face () from the outer side (D) so as to be located outwardly of the high voltage circuit board () on the outer side (D) and overlap the high voltage circuit board ().

Growing community of inventors

Osaka, Japan

Hiroyoshi Omura