Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: An apparatus body structure is installed on a floor surface. The apparatus body structure includes at least one side plate. The at least one side plate is installed on the floor surface and includes an upper side plate and a lower side plate. The lower side plate is detachably joined to a lower side of the upper side plate. A floor surface installation position of the lower side plate to be installed on the floor surface is positioned directly below a floor surface installation position of the upper side plate to be installed on the floor surface, when the upper side plate is directly installed on the floor surface without being joined to the lower side plate.

Abstract: A body structure of an image forming apparatus, which includes a printer, a reader, and a paper processing unit located between the printer and the reader, includes a housing for the paper processing unit, independently provided above a housing of the printer.

Abstract: A connecting device includes a connected member and a connecting member connected to the connected member. The connecting member includes a contact portion contacting a surface of the connected member and a flat spring sandwiching the connected member together with the contact portion. The connected member includes a passage hole through which the contact portion passes, a communication hole communicating with the passage hole and narrower than the passage hole, and a holding portion disposed around the communicating hole. The holding portion holds the contact portion.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A structure of an image forming apparatus includes: a front base and a rear base; a stay member connecting the front base and the rear base; and a side plate having a large mass and supported by the stay member. The stay member is formed into a shape to bear the mass of the side plate with an entire width of the stay member.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.