Abstract: The wire harness 11 disclosed by the present specification includes: a sheet-shaped base member 12; and a plurality of covered electric wires W fixed side by side along the base member 12, in which the transverse cross-sectional area of at least one of the plurality of covered electric wires W is different from the transverse cross-sectional area of another covered electric wire W, and the thickness of the covered electric wire W is substantially the same as the thickness of the covered electric wire W adjacent thereto.

Abstract: A heat exchanger includes a plurality of fins and a plurality of tubes that are inserted into the fins and that allow refrigerant to flow in the tubes. The tubes include first heat transfer tubes and second heat transfer tubes. Each of the first heat transfer tubes includes grooves formed in an inner surface of the first heat transfer tube, and has an inside diameter Da and a groove depth Ta. Each of the second heat transfer tubes has an inner surface smoothed, has an inside diameter Db, and is connected to an associated one of the first heat transfer tubes. Da?2×Ta?Db is satisfied.

Abstract: A developing device contact and separation mechanism includes a monochrome operating member, a color operating member, and a rotating member that rotates among a first position for a non-operational state, a second position for color printing, and a third position for monochrome printing. At the first position, the rotating member moves the monochrome developing device to the separated position, via the monochrome operating member, and the color developing device to the separated position, via the color operating member. At the second position, the rotating member moves the monochrome developing device to the contacting position, via the monochrome operating member, and the color developing device to the contacting position, via the color operating member. At the third position, the rotating member moves the monochrome developing device to the contacting position, via the monochrome operating member, and the color developing device to the separated position, via the color operating member.

Abstract: An air conditioner according to an aspect of the present disclosure includes a wall-mounted indoor unit which includes a heat exchanger, a blower, and a housing that accommodates the heat exchanger and the blower therein, and which is fixed to a wall surface, and a discharge unit which is disposed above the indoor unit outside the indoor unit, in which the housing includes a suction port that opens upward, the discharge unit includes a discharge device disposed above the suction port, at least a portion of air suctioned into the suction port passes through the discharge device, and a center of the discharge unit in a right-left direction of the indoor unit is disposed to be shifted to one side in the right-left direction with respect to a center of the indoor unit.

Abstract: An air conditioner according to an aspect of the present disclosure includes a wall-mounted indoor unit which includes a heat exchanger, a blower, and a housing that accommodates the heat exchanger and the blower therein, and which is fixed to a wall surface, and a discharge unit which is disposed above the indoor unit outside the indoor unit, in which the indoor unit includes a first control unit that controls the indoor unit, the housing includes a suction port that opens upward, the discharge unit includes a discharge device disposed above the suction port, at least a portion of air suctioned into the suction port passes through the discharge device, and the discharge device is driven based on a signal received from the first control unit.

Abstract: The image forming apparatus includes: an image carrier, a developing unit, a moving mechanism, and a drive input gear. The developing unit, including a development container and a developer carrier, is supported so as to be swingable among a contact position, a first separate position, and a second separate position. The moving mechanism reciprocates the developing unit between the contact position and the second separate position. The drive input gear inputs, to the developing unit, driving force for driving rotation of the developer carrier. While the developing unit is in the contact position or the first separate position, the drive transmission gear is engaged with the drive input gear. While the developing unit is being moved from the first separate position to the second separate position, the drive transmission gear is separated from the drive input gear.

Abstract: A fixing member is supported so as to be displaceable in a crossing direction that crosses a sheet conveying direction. A pressure member rotationally drives the fixing member by being rotationally driven. A motor rotationally drives the pressure member. A biasing mechanism elastically biases the fixing member toward the pressure member. A sheet detection portion detects a sheet at a first position and a second position. The first position is a position between a mechanism that feeds the sheet to a fixing position and the fixing position in the conveyance path. The second position is a position between the fixing position and a mechanism that takes over conveyance of the sheet from the fixing device. A control device times a time required for detection results from the sheet detection portion to show a predetermined change, and controls a rotational speed of the motor according to the timed time.

Abstract: A fixing member is supported so as to be displaceable in a crossing direction that crosses a sheet conveying direction. A pressure member rotationally drives the fixing member by being rotationally driven. A motor rotationally drives the pressure member. A biasing mechanism elastically biases the fixing member toward the pressure member. A sheet detection portion detects a sheet at a first position and a second position. The first position is a position between a mechanism that feeds the sheet to a fixing position and the fixing position in the conveyance path. The second position is a position between the fixing position and a mechanism that takes over conveyance of the sheet from the fixing device. A control device times a time required for detection results from the sheet detection portion to show a predetermined change, and controls a rotational speed of the motor according to the timed time.

Abstract: In an air conditioning apparatus, heat exchange is conducted between refrigerant passing through a first high-temperature-side flow path and refrigerant passing through a first low-temperature-side flow path of a cooler, and between refrigerant passing through a second high-temperature-side flow path and refrigerant passing through a second low-temperature-side flow path of the cooler. A switching device switches between first/second refrigerant circuits. In the first circuit, an inlet of the first high-temperature-side flow path is formed downstream of the first low-temperature-side flow path with respect to an outlet of the first high-temperature-side flow path, and in the second refrigerant circuit, an inlet of the second high-temperature-side flow path is formed downstream of the second low-temperature-side flow path with respect to an outlet of the second high-temperature-side flow path.

Abstract: A heat exchanger includes a plurality of fins and a plurality of tubes that are inserted into the fins and that allow refrigerant to flow in the tubes. The tubes include first heat transfer tubes and second heat transfer tubes. Each of the first heat transfer tubes includes grooves formed in an inner surface of the first heat transfer tube, and has an inside diameter Da and a groove depth Ta. Each of the second heat transfer tubes has an inner surface smoothed, has an inside diameter Db, and is connected to an associated one of the first heat transfer tubes. Da?2×Ta?Db is satisfied.

Abstract: A speed reduction device includes an input shaft, a fixed internal gear, an output internal gear and a planetary two-stage gear. The fixed internal gear is fixed on the input shaft. The output internal gear is rotatably disposed on the same axis as the fixed internal gear and has a different number of teeth from the fixed internal gear. The planetary two-stage gear is supported by the input shaft so as to be rotatable around an eccentric shaft. The planetary two-stage gear has a large diameter gear and a small diameter gear which are respectively meshed with the fixed internal gear and the output internal gear. A difference in number of teeth between the large diameter gear and the small diameter gear is equal to a difference in number of teeth between the fixed internal gear and the output internal gear.

Abstract: A speed reduction device includes an input shaft, a fixed internal gear, an output internal gear and a planetary two-stage gear. The fixed internal gear is fixed on the input shaft. The output internal gear is rotatably disposed on the same axis as the fixed internal gear and has a different number of teeth from the fixed internal gear. The planetary two-stage gear is supported by the input shaft so as to be rotatable around an eccentric shaft. The planetary two-stage gear has a large diameter gear and a small diameter gear which are respectively meshed with the fixed internal gear and the output internal gear. A difference in number of teeth between the large diameter gear and the small diameter gear is equal to a difference in number of teeth between the fixed internal gear and the output internal gear.

Abstract: A cam mechanism includes a cam, an output object and a counter object. The cam has a profile including an ascending region where a radius gradually increases along a rotating direction and a descending region where the radius gradually decreases along the rotating direction. The ascending region and the descending region are shifted each other by 180 degrees. The output object abuts on the cam with a predetermined pressure and linearly moves in an abutting direction in which the output object abuts on the cam and in a counter-abutting direction opposite to the abutting direction by rotating of the cam. The counter object abuts on the cam with the predetermined pressure from the counter-abutting direction at a position shifted by 180 degrees with respect to an abutting position between the output object and the cam.

Abstract: A cam mechanism includes a cam, an output object and a counter object. The cam has a profile including an ascending region where a radius gradually increases along a rotating direction and a descending region where the radius gradually decreases along the rotating direction. The ascending region and the descending region are shifted each other by 180 degrees. The output object abuts on the cam with a predetermined pressure and linearly moves in an abutting direction in which the output object abuts on the cam and in a counter-abutting direction opposite to the abutting direction by rotating of the cam. The counter object abuts on the cam with the predetermined pressure from the counter-abutting direction at a position shifted by 180 degrees with respect to an abutting position between the output object and the cam.

Abstract: In an image forming apparatus provided with a cover opening and closing mechanism, a cover opening and closing mechanism includes a button, an operating pin, and a belt-like elastic body that takes a first posture and a second posture, both of which have shape stability, by a snap-through buckling phenomenon. The belt-like elastic body takes the first posture in a state in which the cover has been closed and prevents the operating pin from being pressed to a side of the image forming apparatus body, and is pushed by a pushing operation of the button to take the second posture, operates the operating pin to be pressed to the side of the image forming apparatus body, and opens the cover by reaction force thereof.

Abstract: In an image forming apparatus provided with a cover opening and closing mechanism, a cover opening and closing mechanism includes a button, an operating pin, and a belt-like elastic body that takes a first posture and a second posture, both of which have shape stability, by a snap-through buckling phenomenon. The belt-like elastic body takes the first posture in a state in which the cover has been closed and prevents the operating pin from being pressed to a side of the image forming apparatus body, and is pushed by a pushing operation of the button to take the second posture, operates the operating pin to be pressed to the side of the image forming apparatus body, and opens the cover by reaction force thereof.

Abstract: A control device for a stepper motor drives in a 1-2-phase excitation method in response to an input of a drive signal. The control device includes a control signal generating unit and a drive signal generating unit. The control signal generating unit generates a pulsed control signal. The drive signal generating unit generates the drive signal for rotating by a predetermined step angle every time the control signal is input. The predetermined step angle is a half of a step angle of a 2-phase excitation method. The control signal generating unit configures a higher pulse rate of a first to an n-th (n is an integer equal to or more than 2 and equal to or less than 3) control signals in an activation period of the stepper motor than a pulse rate of the control signals following the n-th control signal.

Abstract: A control device for a stepper motor drives in a 1-2-phase excitation method in response to an input of a drive signal. The control device includes a control signal generating unit and a drive signal generating unit. The control signal generating unit generates a pulsed control signal. The drive signal generating unit generates the drive signal for rotating by a predetermined step angle every time the control signal is input. The predetermined step angle is a half of a step angle of a 2-phase excitation method. The control signal generating unit configures a higher pulse rate of a first to an n-th (n is an integer equal to or more than 2 and equal to or less than 3) control signals in an activation period of the stepper motor than a pulse rate of the control signals following the n-th control signal.

Abstract: A stepping motor control device is a device for controlling a stepping motor to be driven by an input of a drive signal and includes a control signal generator and a drive signal generator. The control signal generator generates a predetermined control signal. The drive signal generator generates a drive signal for rotation by a predetermined step angle every time the control signal is input. The control signal generator sets a time interval between a first control signal for starting the stepping motor from a stopped state and a second control signal at one-third of a natural vibration frequency of the stepping motor.

Abstract: A sheet loading unit includes a main body, a sheet loading plate, a pair of positioning portions, a pair of racks, and a pinion. The sheet loading plate is disposed on an upper surface of the main body. The racks are connected to the positioning portions. The pinion engages with the pair of racks so that the positioning portions move in an interlocking manner. At least one of the racks includes a stopper capable of moving between a first position facing a lower surface of the pinion and a second position not facing the lower surface of the pinion when the rack moves along the width direction.