Ricoh Company, Ltd.

Junichi Murano

Kazuyoshi Matsumoto

Hiroki Ishimitsu

Katsunori Shoji

Osamu Takashima

Masahiro Ishida

Naoki Matsuda

Toshiyuki Uchida

Toshihiro Shimada

Tsuyoshi Endo

Shoji Asanuma

Kouta Hirakawa

Tomoaki Arai

Satoshi Kitaoka

Satoshi Ishihara

Sakae Ishikawa

Takefumi Adachi

Kiyoshi Tsukamura

Hisao Chikano

Juusei Matsumoto

Taisuke Ishikawa

Junichi Kawase

Hirofumi Sugane

Toshiyuki Mae

Yuki Satoh

An image forming apparatus configured to perform simplex printing and duplex printing includes a recording medium ejection device, a suction duct, a blower, and a pair of rotating members. The recording medium ejection device includes a recording medium outlet through which a recording medium is ejected outside of the image forming apparatus and a recording medium reverse port through which a part of the recording medium is ejected to reverse the recording medium in the duplex printing. The suction duct includes a suction port to suck air. The blower is disposed in the suction duct and sucks air from the recording medium ejection device to the suction port. The pair of rotating members is disposed between the suction port and at least one of the recording medium outlet and the recording medium reverse port and reverses both sides of the recording medium in the duplex printing.

Image forming apparatus with condensation prevention

An image forming apparatus includes a housing, a conveying member not used in simplex printing, a duct, a blower, and control circuitry. The duct includes an intake and an opening. The intake is disposed at a first end of the duct. The intake sucks air from outside of the image forming apparatus. The opening is disposed at a second end of the duct different from the first end of the duct. The duct is disposed opposite the conveying member. The blower is disposed in the duct. The blower blows air sucked from the intake to the conveying member through the opening. The control circuitry controls the blower to blow air to the conveying member at least in the simplex printing.

Image forming apparatus including a blower to blow air on a roller not used in conveyance of a recording medium in simplex printing

A sound absorbing device including a Helmholtz resonator having a projection part which includes a shape of protruding from an outer wall surface of a communicating part forming plate among the communicating part forming plate and a cavity forming member that are cavity part forming members forming a cavity part of the Helmholtz resonator, and surrounding an opening of a communicating part that causes the cavity part to communicate with the outside.

Sound absorbing device, electronic device, and image forming apparatus

An electronic device comprises: a shielding object that is arranged at least in a plurality of directions and shields noise; and a Helmholtz silencer that is arranged in a direction where the shielding object does not exist, the shielding object and the silencer being arranged with respect to a noise source causing noise such as a driving source that is arranged inside an apparatus body, wherein a neck portion of the Helmholtz silencer is directed to the noise source, a plurality of such Helmholtz silencers are provided to correspond to at least two kinds of frequencies, and installed number of the Helmholtz silencers corresponding to at least two kinds of the frequencies respectively, is made different depending on a distance from the noise source.

Electronic device and image forming apparatus

A sound absorbing device including a Helmholtz resonator also includes a projection part having a shape of protruding from an outer wall surface of a communicating part forming plate among the communicating part forming plate and a cavity forming member that are cavity part forming members forming a cavity part of the Helmholtz resonator, and surrounding an opening of a communicating part that causes the cavity part to communicate with the outside.

An image forming apparatus including an image forming unit to develop an electrostatic latent image formed on an image carrier with toner, an intake fan to draw air used for cooling the image forming unit into the image forming apparatus, an exhaust fan to exhaust the air from the image forming apparatus, and an exhaust duct to form an airflow path between the image forming unit and the exhaust fan. One end of the exhaust duct is disposed below the exhaust fan.

Image forming apparatus

In an image forming apparatus, a fixing unit is supported by a unit holder attached to a structure frame. The structure frame includes a first upright panel and a second upright panel. A protrusion is provided on the first upright panel and a guide groove that receives the protrusion is provided on the unit holder. An eccentric cam engages with the unit holder at an engaging position and that is to be operated to move the first unit holder in the first direction relative to the structure frame for position adjustment. The engaging position is located on a vertical line extending through a center of mass of the fixing unit.

Image forming apparatus fixing unit and method of adjusting position of fixing unit

An operation lever is configured to swing about a rotation axis. Regulating members that regulate the movement of the operation lever along the rotation axis thereof are integrally formed with a cover.

A packing tool for packing large articles such as image forming apparatuses has a pallet to place the article, and an article-fixing member to secure the article to the pallet. The article-fixing member is accommodated in an accommodating section in the pallet. When securing the article to the pallet, the article-fixing member is pulled out and wound around the article.

Pallet packing tool

An image forming apparatus and methods of supporting and adjusting a position of a fixing unit thereof. The apparatus includes a frame having a first side plate and a second side plate opposing the first side plate, a first unit holding member engaged with the first side plate by a combination of a guide groove and a guide protrusion, a second unit holding member attached to the second side plate, a detachable unit located between the first and second side plates and held by the first and second unit holding members, and a position adjustment member to move the first unit holding member in a longitudinal direction of the guide groove to adjust a position of the detachable unit. The position adjustment member engages the first unit holding member at a position vertically aligned with a center of gravity G of the detachable unit.

Image forming apparatus including fixing unit, and fixing unit support method and fixing unit position adjustment method therefor

An image forming apparatus includes a plurality of image carrier units and a position determining unit. The image carrier units form toner images in a sequential manner, and each of the plurality of image carrier units includes an image carrier and a supporting member to support the image carrier. The position determining unit includes a holding member having a plurality of openings for receiving the supporting members of the respective image carriers and a pressure mechanism. Each of the plurality of openings has a predetermined shape to sustain a weight of a corresponding one of the plurality of image carrier units through a corresponding one of the supporting members in a vertical direction and to grip the corresponding one of the supporting members in a horizontal direction. The pressure mechanism presses the supporting members held through the plurality of openings of the holding member to fix the image carriers at respective specific positions.

Image forming apparatus to carry out position determination of a rotating body

An image reading apparatus is equipped with an optical unit. Just prior to shifting to a low power-consumption mode, the optical unit is shifted to a low power-consumption position that is different from a home position.

Image reading apparatus

An image forming apparatus includes an image bearing member configured to bear an image on a surface thereof, an image bearing member supporting member configured to support the image bearing member, a sliding member having a guide portion, a positioning member configured to be detachably positioned at a given position on the sliding member and including a fitting portion that has planes and that is configured to fit with image bearing member supporting member while the positioning member being positioned at the given position, and a pressing member configured to press the image bearing member supporting member toward the planes of the fitting portion and having the pressing member having a V-shaped portion so that the V-shaped portion is pushed between the guide portion and the image bearing member supporting member to press the image bearing member supporting member.

Method and apparatus for image forming capable of effectively positioning a supporting member

Pallet packing method and pallet packing tool used in the method

The image forming apparatus is equipped with a straight handle that can be pushed into and pulled out of an outer wall through a hole provided to the outer wall, and has a protruding component on the outer wall in the vicinity and next to the hole. The handle is constituted such that when pulled outward from the hole, the handle protrudes horizontally at a specific angle away from the protruding component.

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Saitama, Japan

Junichi Murano