Abstract: An image reading apparatus includes a document placement surface, a document cover that rotates between a closed state and an open state, a pressing portion that is disposed on the side of the document table and presses a switch, a rotary lever that is disposed on the side of the document cover and applies external force to the pressing portion, and a biasing member that biases one end side of the rotary lever in a direction that moves away from the document cover, in which when the document cover is at a predetermined angle, one end of the rotary lever pushes down the pressing portion to change the state of the switch, and in the process of displacement from the predetermined angle to the closed state, the one end of the rotary lever rotates in a direction approaching the document cover and maintains the state of the switch.

Abstract: An image reading apparatus includes a document placement surface, a document cover that rotates between a closed state and an open state, a pressing portion that is disposed on the side of the document table and presses a switch, a rotary lever that is disposed on the side of the document cover and applies external force to the pressing portion, and a biasing member that biases one end side of the rotary lever in a direction that moves away from the document cover, in which when the document cover is at a predetermined angle, one end of the rotary lever pushes down the pressing portion to change the state of the switch, and in the process of displacement from the predetermined angle to the closed state, the one end of the rotary lever rotates in a direction approaching the document cover and maintains the state of the switch.

Abstract: A scanner identifies a document size on the basis of the intensity of light outputted in a photometric condition different from a first photometric condition, by photometric units provided to a position subject to determination that is a position excluding a position where light of an intensity not less than a first threshold value is received in the first photometric condition, among a plurality of positions to which the photometric units are provided. The first photometric condition is a condition where a document cover is open and a light-emitting unit is not emitting light.

Abstract: A liquid ejecting apparatus includes a liquid ejecting head which ejects liquid toward a recording medium; a rib which projects in a direction toward the liquid ejecting head, and includes a support portion for supporting the recording medium; a detection target portion which is provided at a position lower than the support portion; a lower side portion located at a position lower than the detection target portion; a light emitting unit which irradiates the detection target portion with light rays; a light receiving unit which receives reflected light rays resulting from reflection of the light rays with which the detection target portion is irradiated, convers the received reflected light rays into photocurrent, and outputs the photocurrent as an output voltage; and a sensitivity setting unit which causes the light emitting unit to irradiate the detection target portion with light rays and sets the sensitivity of the light receiving unit.

Abstract: A scanner identifies a document size on the basis of the intensity of light outputted in a photometric condition different from a first photometric condition, by photometric units provided to a position subject to determination that is a position excluding a position where light of an intensity not less than a first threshold value is received in the first photometric condition, among a plurality of positions to which the photometric units are provided. The first photometric condition is a condition where a document cover is open and a light-emitting unit is not emitting light.

Abstract: A liquid ejecting apparatus includes a liquid ejecting head which ejects liquid toward a recording medium; a rib which projects in a direction toward the liquid ejecting head, and includes a support portion for supporting the recording medium; a detection target portion which is provided at a position lower than the support portion; a lower side portion located at a position lower than the detection target portion; a light emitting unit which irradiates the detection target portion with light rays; a light receiving unit which receives reflected light rays resulting from reflection of the light rays with which the detection target portion is irradiated, convers the received reflected light rays into photocurrent, and outputs the photocurrent as an output voltage; and a sensitivity setting unit which causes the light emitting unit to irradiate the detection target portion with light rays and sets the sensitivity of the light receiving unit.

Abstract: An apparatus includes: an opening and closing mechanism that opens or closes an opening section of the apparatus; a first movable body that is moved in accordance with the operation of opening and closing the opening section by the opening and closing mechanism; a movement detector that detects the movement amount of the first movable body; a controller that determines whether or not the opening section is closed, on the basis of the detected movement amount; a second movable body disposed in the apparatus and movable; and a movement transmitting mechanism which moves the first movable body in accordance with the movement of the second movable body in a state in which the opening section is closed, and does not move the first movable body in accordance with the movement of the second movable body in a state in which the opening section is opened.

Abstract: A printer is disclosed which determines whether or not an opening of the printer is open or closed. The printer includes an opening/closing mechanism for opening and closing the opening of the printer housing. The printer includes a controller configured to determine whether the opening is open or closed based on a light receiving state of a light receiving portion. The light receiving portion receives light from a light sending portion. A first movable body with a plurality of openings is moveable between the light sending and receiving portions. A movement transmission mechanism moves the first moveable body according to movement of a second moveable body.

Abstract: An apparatus includes: an opening and closing mechanism that opens or closes an opening section of the apparatus; a first movable body that is moved in accordance with the operation of opening and closing the opening section by the opening and closing mechanism; a movement detector that detects the movement amount of the first movable body; a controller that determines whether or not the opening section is closed, on the basis of the detected movement amount; a second movable body disposed in the apparatus and movable; and a movement transmitting mechanism which moves the first movable body in accordance with the movement of the second movable body in a state in which the opening section is closed, and does not move the first movable body in accordance with the movement of the second movable body in a state in which the opening section is opened.

Abstract: A printer is disclosed which determines whether or not an opening of the printer is open or closed. The printer includes an opening/closing mechanism for opening and closing the opening of the printer housing. The printer includes a controller configured to determine whether the opening is open or closed based on a light receiving state of a light receiving portion. The light receiving portion receives light from a light sending portion. A first movable body with a plurality of openings is moveable between the light sending and receiving portions. A movement transmission mechanism moves the first moveable body according to movement of a second moveable body.

Abstract: A first plate member constitutes a part of a main frame of a liquid ejection apparatus. A second plate member is extended from the first plate member such that a first part thereof opposes to a traveling path of a carriage which carries a plurality of liquid containers each provided with an IC chip and a receiving antenna. A transmission antenna is provided on an antenna board. The antenna board is mounted on the first part of the second plate member. The second plate member is formed with a first region which allows the transmission antenna to establish radio communication with the receiving antenna, and a second region which shields radio waves.

Abstract: A first plate member constitutes a part of a main frame of a liquid ejection apparatus. A second plate member is extended from the first plate member such that a first part thereof opposes to a traveling path of a carriage which carries a plurality of liquid containers each provided with an IC chip and a receiving antenna. A transmission antenna is provided on an antenna board. The antenna board is mounted on the first part of the second plate member. The second plate member is formed with a first region which allows the transmission antenna to establish radio communication with the receiving antenna, and a second region which shields radio waves.