Abstract: According to an embodiment, an image projection apparatus includes a light source unit, an image forming unit that forms an image using light from the light source unit, and a heat releasing unit that is provided to the image forming unit and releases heat from the image forming unit, and projecting the image formed by the image forming unit. The image projection apparatus includes a facing member that faces an installation surface on which a main body of the apparatus is installed; and a foot that allows the facing member to support the image forming unit. The heat releasing unit is provided between the facing member and the image forming unit.

Abstract: An image projection apparatus includes a light source, light from which is used to project an image, and a holding member configured to hold the light source. The holding member includes a handle portion, and the handle portion includes a first flow path for flowing air.

Abstract: An illumination optical system includes a lens unit that is arranged on a path of an emitted light to an image forming element for forming an image; a holding unit that holds the lens unit; and an elastic body that is attached to the holding unit, and has integrally-formed first and second parts, the first part being biased in a direction of an optical axis of the light to press the lens unit, and the second part being biased in a direction perpendicular to the direction of the optical axis to press the lens unit.

Abstract: An image forming apparatus includes an image forming unit, a first sheet stack portion, a sheet output section, and a post processing unit. The image forming unit forms an image on a sheet. The first sheet stack portion is provided at an upper face of the image forming unit. The sheet output section outputs the sheet on which the image is formed by the image forming unit from one side of the image forming apparatus to the first sheet stack portion. The post processing unit is provided adjacent to a lateral side of the image forming unit at an upstream side of the sheet output section to execute post processing on the sheet. A sheet subjected to post-processing by the post-processing unit is output to the first sheet stack portion from the same direction as a sheet not subjected to post-processing by the post-processing unit.

Abstract: An image projection apparatus includes a light source; an intake port to take in low-temperature air into the image projection apparatus; an exhaust port to exhaust air from the image projection apparatus; a ventilation unit to generate an air flow from the intake port to the exhaust port; a first flow path for hot-air exhaust having increased its temperature by taking heat from the light source; a second flow path for a part of the low-temperature air, taken from the intake port; and a mixing unit to mix the hot-air exhaust flowing from the first flow path and the low-temperature air flowing from the second flow path. The air mixed and exhausted from the mixing unit converges with another part of the low-temperature air, flowing from a third flow path set outside the mixing unit, at a space between the mixing unit and the exhaust port.

Abstract: An image projection apparatus for projecting an image on a projection plane includes a light source; a light source housing to encase the light source; a ventilation unit to send air to the light source; and a flow path set between the light source housing and a side face of the image projection apparatus. A part of the air sent to the light source, by using the ventilation unit, is flowed into the flow path.

Abstract: According to an embodiment, an image projection apparatus includes a light source unit, an image forming unit that forms an image using light from the light source unit, and a heat releasing unit that is provided to the image forming unit and releases heat from the image forming unit, and projecting the image formed by the image forming unit. The image projection apparatus includes a facing member that faces an installation surface on which a main body of the apparatus is installed; and a foot that allows the facing member to support the image forming unit. The heat releasing unit is provided between the facing member and the image forming unit.

Abstract: An image projection apparatus includes a light source, light from which is used to form an image to be projected, a first flow path, a control unit configured to control a light emission from the light source, an electrical power stabilizing unit configured to stabilize an electrical power to be supplied to the light source, and an electrical power source unit configured to supply the electrical power to at least one of the control unit and the electrical power stabilizing unit. One or both of the electrical power source unit and the electrical power stabilizing unit is/are divided into a plurality of boards. The light source is arranged on a normal line of a surface of any of the plurality of boards. The plurality of boards configure surfaces of the first flow path except a surface nearest to the light source.

Abstract: An image projection apparatus includes a light source, light from which is used to project an image, and a holding member configured to hold the light source. The holding member includes a handle portion, and the handle portion includes a first flow path for flowing air.

Abstract: An image projection apparatus includes a light source unit including a light source detachable from a main body, an image forming part to form an image with a light from the light source, a projection optical system to project the image, an openable cover to open and close an opening formed for attaching and detaching the light source unit to and from the main body, an abutting member on which the light source unit abuts when the light source unit is attached to the main body, and a pressing member to press the light source unit to the abutting member, in conjunction with a fix operation of the openable cover to the main body.

Abstract: According to an embodiment, provided is an image projection apparatus that includes: an image forming unit that forms an image using light from a light source; a projecting optical unit that forms a projected image of the image formed by the image forming unit; and an outer housing that houses the image forming unit and the projecting optical unit. The image forming unit and the projecting optical unit are provided in the given order from a setting surface of the outer housing. A width of the outer housing in a direction perpendicular to a projection surface is larger at a position where the projecting optical unit is provided than at a position where the image forming unit is provided.

Abstract: An image projection apparatus for projecting an image using light includes a light source configured to emit the light; and an operating unit configured to allow a user to operate the image projection apparatus, the operating unit being disposed above the light source when viewed from a placement surface on which a main body of the image projection apparatus is placed. The image projection apparatus also includes a first flow path in which air flows through the light source; and a second flow path different from the first flow path, the second flow path being formed between the light source and the operating unit.

Abstract: Provided is an image projection apparatus, such as a projector, including a light source; an image generating element such as a DMD that receives light from the light source and forms an image; an image generating unit that irradiates the image generating element with the light from the light source; a first optical system including multiple transmission refractive optical elements; a second optical system arranged on an optical path of outgoing light of the first optical system and including a reflection optical element; and a projection optical system that enlarges and projects an image conjugate to the image generated by the image generating element as a projected image. The light source, the image generating unit, and the first optical system are arranged side by side in series in a direction parallel with the projected image plane.

Abstract: An image displaying apparatus including a light source, a light condenser for condensing light to form a condensed light image, a light mixing element, a reflective image displaying element having plural micro-mirrors for changing an inclination angle of an individual micro-mirror between an on-state and an off-state, an illumination optical system including a condenser lens and a mirror for illumination, and a projection optical system for projecting reflected light from a micro-mirror being at an on-state among plural micro-mirrors constituting the reflective image displaying element, wherein the mirror for illumination is at a position nearest the reflective image displaying element on an optical path from the light mixing element to the reflective image displaying element and a reflection surface of this mirror for illumination is positioned at a side of the reflective image displaying element with respect to a projection lens system constituting a part of the projection optical system.

Abstract: In a lighting device, a light source emits light. A second sandwiching member includes a second opposed surface opposing a first opposed surface of a first sandwiching member. The first sandwiching member and the second sandwiching member sandwich the light source in such a manner that the light source is detachably attached to the first sandwiching member and the second sandwiching member. A reflection member is provided on the first opposed surface of the first sandwiching member and the second opposed surface of the second sandwiching member to reflect the light emitted by the light source toward an irradiation region on an original document sheet. A positioning member is provided in the first opposed surface of the first sandwiching member and the second opposed surface of the second sandwiching member to position the light source with respect to the reflection member.

Abstract: In an image reader, an optical scanning unit reads an original image on an original document sheet. In the optical scanning unit, a lighting device is detachably attached to a housing to emit light toward the original document sheet. The housing houses a reading device to read the light reflected by the original document sheet. A shield member is detachably attached to the housing to shield the reading device from the lighting device to form a space for the reading device inside the housing. A slit is provided in the shield member to guide the light reflected by the original document sheet to the space for the reading device. A second positioner is provided on the shield member to engage a first positioner provided in the housing to position the reading device with respect to the lighting device.

Abstract: In an image forming apparatus, when a first sheet discharger discharges a sheet bearing an image in a first direction from a proximal end to a distal end of the image forming apparatus, a post-processing device performs post-processing including at least one of stapling, punching, stamping, and sorting of the sheet discharged from the first sheet discharger. After a second sheet discharger discharges the processed sheet in a second direction opposite to the first direction in which the first sheet discharger discharges the sheet bearing the image, a sheet stacker stacks the sheet discharged from the second sheet discharger. A sheet conveyance path is provided between the first sheet discharger and the second sheet discharger. An opening is provided between the sheet stacker and an image reader so that the sheet discharged from the second sheet discharger can be retrieved from the sheet stacker in the second direction.

Abstract: An image forming apparatus includes an apparatus body, a cover section, an image reading device including a document hold member and a document hold member cover, and a lock mechanism. When the document hold member cover is not in close contact with the document hold member, the lock mechanism prevents opening of the cover section or sliding of the image reading device.

Abstract: Disclosed is an image forming apparatus including a toner feed unit used in a developing device and provided near a top surface of a body casing. The toner feed unit includes a frame that includes a toner container storage space portion including a curved concave portion formed of a material different from a material constituting the body casing, and has supporting surfaces, in a part of a top surface of the space, that support side portions of a device mounted on the body casing and a rear portion of the device connected to the side portions by surface contact. The frame has legs that extend from a position, which is located opposite to the device to be mounted, toward an installation surface of the body casing. The frame is built in the body casing.

Abstract: A driving-force transferring unit is extended in a predetermined direction, with a predetermined portion attached to a running unit. A driving unit changes a direction of movement of the driving-force transferring unit by rotating based on a driving force from a driving source. At least one pulley unit is rotatably attached to the case and supports the driving-force transferring unit. The pulley unit includes an outer ring member that is rotated by the driving-force transferring unit, an inner ring member that rotatably supports the outer ring member, and an engaging unit that is provided on the inner ring member, to engage with the case.