Seiko Epson Corporation

Tetsuya Tamura

Tatsuya Shirane

Narihiro Oki

Hiroki Chino

Akira Nemura

Hitoshi Igarashi

Toshikazu Kotaka

Yosuke Nakano

Kensuke Tamai

Yoshiyuki Okazawa

Shintaro Miyamoto

Toshio Miyake

Shinji Kanemaru

Kazuhisa Nakamura

Hiroyuki Tajima

Yu Shinagawa

Takayuki Tanaka

Kenichi Shirota

Takuya Hatano

Kazunori Maeta

Hiroyuki Furui

A projector according to the disclosure includes a projection system projecting image light onto a target projection surface, and a shutter unit that is arranged at a light incident side of the projection system and that can block an optical path. The shutter unit has a drive motor, a transmission member transmitting a rotational drive force of the drive motor, and a shutter member arranged on the optical path and moving, linked to a movement of the transmission member. The shutter member is provided facing a facing area facing the projection system. At least a part of the transmission member is provided facing the facing area. The drive motor is provided outside the facing area.

Projector

A projector includes a light source apparatus, an image formation apparatus that includes a light modulator and forms an image, the light modulator modulating light outputted from the light source apparatus, a projection optical apparatus that projects the image formed by the image formation apparatus, and an attitude adjustment apparatus that causes the light modulator to pivot around a pivotal axis perpendicular to the optical axis of the projection optical apparatus to adjust the attitude of the light modulator.

Projector with attitude adjustment apparatus

A projector includes light source, plurality of light modulation devices, light combining device integrated with the plurality of light modulation devices, projection optical device, posture adjustment device that adjusts posture of the light combining device, and control device that controls operation of the posture adjustment device, the posture adjustment device includes lead screw that changes posture of the light combining device, driver that rotates lead screw, shaft member to which rotation of lead screw is transmitted, potentiometer that detects amount of rotation of the shaft member, and photosensor that may be shielded by light shielding portion provided in the shaft member, and the control device includes abnormality determination unit that determines whether or not abnormality has occurred based on detection result by the potentiometer, and return operation unit that, if occurrence of abnormality is determined, returns the light combining device to original position based on detection result by the photosensor.

Projector and control method

A recording apparatus includes a housing which configures at least a portion of an outside of an apparatus main body which is provided with a recorder which performs recording on a medium, a lid body which opens and closes at least a portion of a top portion of the apparatus main body and is capable of tilting, and a tilting shaft of the lid body, in which the tilting shaft is capable of being displaced in a direction intersecting an axial line direction of the tilting shaft, and in which the lid body is capable of tilting from a closed state in which a gap between the housing and an end portion of an opposite side from a free end side is filled to an opened state by the displacement of the tilting shaft.

Recording apparatus

A recording apparatus includes a medium container to store a medium, feeding rollers to be switched between a feeding state in which the feeding rollers are in contact with the medium and a separated state in which the feeding rollers are separated from the medium, a reversing path for reversing the medium that has been fed from the medium container, a recorder to perform recording on the medium that has been reversed by the reversing path, a back-feed path for introducing the medium that has been fed in the reverse direction from the recording region in which recording has been performed by the recorder toward the reversing path, and a nip roller configured to nip the medium within the back-feed path. At least a portion of the feeding rollers that are in the separated state overlaps the nip roller in the direction of the height of the recording apparatus.

A feed device includes a feed roller, a transport roller pair provided further to the downstream side in the transport direction of a sheet than the feed roller, a first motor by which the feed roller is driven, and a second motor by which the transport roller pair is driven, and in which a controller that controls the first motor, and performs a skew removal operation accompanying reverse transport of the sheet by the transport roller pair causes a reverse current and a hold current as suppression currents that suppress the reverse transport amount of the feed roller to the reverse transport amount of the transport roller pair or less to flow to the first motor in at least a part of the skew removal operation.

Feed device and recording apparatus

A printer includes an apparatus main body including a recording head, and a duplexing unit configured to be removable with respect to the apparatus main body and forming a reverse transport path in which a sheet fed from the recording head side is reversed. The sheet width (for example, width of A4 short side) able to be transported to a region opposing the recording head through the reverse transport path is smaller than the width (for example, width of A4 long side) of the manual supply path, and in a case where the sheet on which recording is performed warps in the width direction, the extent of the warping is restricted to a predetermined range.

A lower level tray has a pair of protruding sections on both end sides in a width direction at tip ends in an insertion direction. Arrangement spaces are provided on both sides which interpose the lower level tray, which is in a mounting position in an apparatus body, in the width direction. A holding mechanism of a supply mechanism configured to be operated by engaging with a first protruding section while the lower level tray is mounted and be released from operating due to terminating the engaging with the first protruding section while the lower level tray is taken out, is arranged in one of the arrangement spaces. A circuit board connected through a wiring with a second sensor which is configured to detect mounting and taking out of the lower level tray using the second protruding section as the target for identification is arranged in the other arrangement space.

Printing apparatus

A printer includes a lower tray and an upper tray disposed above the lower tray. An optical sensor which detects the presence or absence of a sheet is disposed above the upper tray. The optical sensor is disposed in a roller support member which supports a feeding roller and serves as a swingable swing member. A distance between the optical sensor and the sheet is adjusted by swing of the roller support member according to the number of sheets.

Recording apparatus and medium feeding device

A printer includes a device main body having a recording head, and a double-sided printing unit that forms an inverting transport path for inverting a medium fed from the side on which the recording head is located and that is configured to be mountable in and removable from the device main body. A photosensor that detects paper within the double-sided printing unit when the double-sided printing unit is mounted in the device main body detects the paper within the double-sided printing unit via an opening provided in an upper area of the double-sided printing unit.

Recording device

A recording medium feeding device includes a tray in which accommodates a recording medium, which is attachable to and detachable from a device main body including a feeding unit; a stopper that is able to switch between a regulating state in which the stopper comes into contact with a leading edge of the recording medium which is accommodated in the tray to regulate a movement of the recording medium, and a regulating release state that enables the recording medium to be fed to a feeding path; and a switching unit that is engaged with the tray to switch the stopper from the regulating state to the regulating release state, wherein the switching unit includes engaging portions that engages with the tray, and wherein the engaging portions are disposed, being separated from the stopper at the both sides of the stopper in a width direction of the recording medium.

Recording medium feeding device and recording apparatus

A recording apparatus includes a lower tray which is detachably mounted to an apparatus body, an upper tray provided above the lower tray, which is detachably mounted to the apparatus body, and a feeding roller capable of contacting each of a recording medium stored in the lower tray and the recording medium stored in the upper tray from above. The feeding roller is supported at an intermediate position, which is lower than a position of the feeding roller reached when the feeding roller contacts a bottom surface of the upper tray and higher than a position of the feeding roller reached when the feeding roller contacts a recording medium set as a top sheet in a state in which a maximum number of recording media are stored in the lower tray, in an unmounted state of the upper tray and the lower tray.

A recording medium feeding device includes a lower stage side tray which stores a recording medium, an upper stage side tray which is provided above the lower stage side tray and stores the recording medium, a first separation inclined surface which is opposite to a tip of the recording medium which is stored in the lower stage side tray and the upper stage side tray and extends along a feed path of the recording medium, and a second separation inclined surface in which a trailing end in the feed path is positioned below a bottom surface of the upper stage side tray, and thus, which is opposite to the tip of the recording medium which is stored in the lower stage side tray and is not opposite to the tip of the recording medium which is stored in the upper stage side tray.

A recording apparatus includes a slider that has a cam face with which a cam of the stopper comes into sliding contact and moves in the insertion direction from a first position to a second position with a resistance when the cassette is inserted into the mounting unit. The cam face includes a first cam face on which the cam slides when the slider moves from the first position to the second position and a press cam face against which the cam presses when the paper sheet comes into contact with the stopper. The press cam face has an inclination relative to a reference straight line which is perpendicular to a plane parallel to the insertion direction of the cassette which is greater than that relative to a straight line which extends from the contact point between the press cam face and the cam to the shaft.

A sheet material detection apparatus detects passage of a sheet material over a sheet material transportation path. The apparatus includes: a lever member that is exposed over the transportation path and turns from a reference position when the sheet material is brought into contact therewith; a detecting section that detects the turn of the lever member; a holder that supports the lever member in such a manner that the lever member can turn freely toward both sides in a direction of the transportation of the sheet material at a guide-facing-surface side, the guide facing surface being a surface facing a guide surface along which the sheet material is guided over the transportation path; and a counter weight with which the turning lever member is brought into contact, the counter weight turning due to contact with the lever member, the counter weight being thereafter brought into contact with the holder.

Growing community of inventors

Matsumoto, Japan

Tetsuya Tamura