Abstract: A printer, which is an example of a liquid ejecting apparatus, includes a movable body including a head for ejecting a liquid or a cap performing maintenance of the head. Further, the printer includes a pair of rack and pinion mechanisms including a rack and a drive gear to move the movable body in a first direction in which the rack extends; and a switching mechanism provided for each of the rack and pinion mechanisms and switching presence and absence of meshing between the rack and the drive gear when the movable body is at an exchange position.

Abstract: A main body frame of a multifunction machine has first and second frames of which surfaces parallel to a Z-axis face each other. A recording head is disposed between the first and the second frames and fixed to the main body frame. An ejection tray is fixed to the main body frame on a +Z direction with respect to the recording head. A scanner is fixed to the main body frame on the +Z direction with respect to the ejection tray and forms an ejection space with the ejection tray. The recording head performs recording on a medium which is being transported toward a first direction, which is an in-plane direction of the first frame. The ejection tray is configured to be removed toward a second direction, which is the in-plane direction of the first frame, in a state where the scanner is fixed to the main body frame.

Abstract: The purpose of the present invention is to develop a method or system for measuring the skin condition easily and accurately. The method for determining the skin condition based on the thermal sensitivity in the skin was perfected by discovering that the skin condition, especially the skin barrier function, can be determined based on the thermal sensitivity in the skin.

Abstract: A memory includes a cell array including first and second sub arrays including memory cells and simultaneously driven in a read or a write operation. First lines are connected to the cells corresponding to one of physical rows, where the physical row is the cells arranged in a first direction in the cell array. Second lines are connected to the cells arranged in a second direction intersecting with the first direction in the cell array. A decoder selects a selection line from among the first lines in accordance with a logical row address corresponding to each of the physical rows and applies a read voltage or a write voltage to the selection line. A sense amplifier detects data from the second lines. Logical row addresses corresponding to physical rows adjacent to a certain physical row among the physical rows differ between the first sub array and the second sub array.

Abstract: A printer, which is an example of a liquid ejecting apparatus, including a slide mechanism that has a first member and a second member configured to slide with each other in lifting and lowering directions; a head that is fixed to the first member and has a nozzle for ejecting a liquid; a lifting and lowering mechanism that is fixed to the second member, and lifts and lowers the head in the lifting and lowering directions; and a cap that covers the nozzle. The first member is configured of a wall member having an elongated hole, and the second member is configured of a pin. The lifting and lowering mechanism relatively moves the head toward the cap in a state where the head does not slide in a direction away from the cap.

Abstract: A semiconductor device using unipolar transistors, in which high and low levels are expressed using high and low power supply potentials, is provided. The semiconductor device includes four transistors, two capacitors, two wirings, two input terminals, and an output terminal. A source or a drain of the first transistor and a source or a drain of the fourth transistor are electrically connected to the first wiring. A gate of the fourth transistor is electrically connected to the first input terminal, and a gate of the second transistor is electrically connected to the second input terminal. A source or a drain of the second transistor and a source or a drain of the third transistor are electrically connected to the second wiring. The first transistor, the second transistor, and the two capacitors are electrically connected to the output terminal.

Abstract: A semiconductor device with reduced power consumption is provided. The semiconductor device includes a transmitter unit, a receiver unit, a bias-outputting unit, and a controller unit. The bias-outputting unit has a plurality of memory units. The plurality of memory units each retains information to determine transmission power. The receiver unit receives a request signal transmitted from a base station and supplies it to the controller unit. The controller unit selects one of the plurality of memory units according to the request signal. The memory unit has an OS transistor and retains information when power supply is stopped.

Abstract: A printer, which is an example of a liquid ejecting apparatus, including a slide mechanism that has a first member and a second member configured to slide with each other in lifting and lowering directions; a head that is fixed to the first member and has a nozzle for ejecting a liquid; a lifting and lowering mechanism that is fixed to the second member, and lifts and lowers the head in the lifting and lowering directions; and a cap that covers the nozzle. The first member is configured of a wall member having an elongated hole, and the second member is configured of a pin. The lifting and lowering mechanism relatively moves the head toward the cap in a state where the head does not slide in a direction away from the cap.

Abstract: A power supply shutoff device includes a movable section, a driving section, a power supply device, a power distribution section, an electric power supply circuit, and a supply control section. The movable section is configured to travel on a traveling path provided along a board production line in which multiple board work machines, which perform a predetermined board work on a board, are installed side by side. The driving section is provided in the movable section and configured to cause the movable section to travel by using supply electric power supplied from the board work machine with non-contact power feeding. The supply control section is configured to stop a supply of the electric power to the electric power supply circuit when drive electric power for driving the board work machine is shut off in at least one board work machine among the multiple board work machines.

Abstract: A semiconductor device in which energy required for data transfer between an arithmetic device and a memory is reduced is provided. The semiconductor device includes a peripheral circuit and a memory cell array. The peripheral circuit has a function of a driver circuit and a control circuit for the memory cell array, and an arithmetic function. The peripheral circuit includes a sense amplifier circuit and an arithmetic circuit, and the memory cell array includes a memory cell and a bit line. The sense amplifier circuit has a function of determining whether the bit line is at a high level or a low level, and outputs the result to the arithmetic circuit. The arithmetic circuit has a function of performing a product-sum operation, the result of which is output from the semiconductor device.

Abstract: A recording device has: a recording section that discharges a liquid to a medium for recording purposes; a maintenance unit that abuts the recording section and performs maintenance of the recording section; a first moving section that causes the recording section to abut the maintenance unit and separates the recording section from the maintenance unit; and a restricting section that can suppress movement of the recording section toward the maintenance unit after the recording section abuts the maintenance unit. The first moving section has a driving source and a worm gear that transmits the power of the driving source. A force with which the driving source causes the recording section to abut the maintenance unit is smaller than a force with which the driving source separates the recording section from the maintenance unit.

Abstract: A novel comparison circuit, a novel amplifier circuit, a novel battery control circuit, a novel battery protection circuit, a power storage device, a semiconductor device, an electronic device, and the like are provided.

Abstract: A semiconductor device having a novel structure is provided. The semiconductor device includes a CPU and an accelerator. The accelerator includes a first memory circuit and an arithmetic circuit. The first memory circuit includes a first transistor. The first transistor includes a semiconductor layer containing a metal oxide in a channel formation region. The arithmetic circuit includes a second transistor. The second transistor includes a semiconductor layer containing silicon in a channel formation region. The first transistor and the second transistor are provided to be stacked. The CPU includes a CPU core including a flip-flop provided with a backup circuit. The backup circuit includes a third transistor. The third transistor includes a semiconductor layer containing a metal oxide in a channel formation region.

Abstract: According to one embodiment, a semiconductor device includes a semiconductor substrate and a capacitor that includes a first electrode extending in a first direction intersecting the semiconductor substrate and a second electrode facing the first electrode. A first conductive layer is above the capacitor and extends in a second direction. A semiconductor layer penetrates the first conductive layer in the first direction. A first conductor can be above or below the first conductive layer and electrically connected to the first conductive layer. A first insulating film is between the first conductive layer and the semiconductor layer. A second conductive layer extends in the second direction and is electrically connected to the first conductive layer via the first conductor.

Abstract: A highly reliable memory device is provided. The memory device includes a memory control unit that includes an input/output unit, a control unit, and a first management unit and a memory unit that includes a plurality of memory blocks. The first management unit includes a plurality of first memory elements, the control unit has a function of converting an address input through the input/output unit to an address of the memory block corresponding to the address, with use of a first management table retained in the plurality of first memory elements, and the first memory elements each include a ferroelectric. The control portion may include a function of not using a defective memory cell and may have a function of performing error correction of readout data.

Abstract: A semiconductor device resistant to a high temperature with low power consumption is provided. The semiconductor device includes a first and a second circuit, a first and a second cell, and a first and a second wiring. The first cell includes a first transistor, and the second cell includes a second transistor. The first and the second transistor operate in a subthreshold region. The first cell is electrically connected to the first circuit through the first wiring, the first cell is electrically connected to the second circuit through the second wiring, and the second cell is electrically connected to the second circuit through the second wiring. The first cell sets a current flowing through the first transistor to a first current and the second cell sets a current flowing through the second transistor to a second current. At this time, a potential corresponding to the second current is input from the second wiring to the first cell.

Abstract: An object is to provide a pixel structure of a display device including a photosensor which prevents changes in an output of the photosensor and a decrease in imaging quality. The display device has a pixel layout structure in which a shielding wire is disposed between an FD and an imaging signal line (a PR line, a TX line, or an SE line) or between the FD and an image-display signal line in order to reduce or eliminate parasitic capacitance between the FD and a signal line for the purpose of suppressing changes in the potential of the FD. An imaging power supply line, image-display power supply line, a GND line, a common line, or the like whose potential is fixed, such as a common potential line, is used as a shielding wire.

Abstract: A power supply circuit with a novel structure is provided.

Abstract: A ferroelectric device including a metal oxide film having favorable ferroelectricity is provided. The ferroelectric device includes a first conductor, a metal oxide film over the first conductor, and a second conductor over the metal oxide film. The metal oxide film has ferroelectricity. The metal oxide film has a crystal structure. The crystal structure includes a first layer and a second layer. The first layer contains first oxygen and hafnium. The second layer contains second oxygen and zirconium. The hafnium and the zirconium are bonded to each other through the first oxygen. The second oxygen is bonded to the zirconium.

Abstract: In a CMOS image sensor in which a plurality of pixels is arranged in a matrix, a transistor in which a channel formation region includes an oxide semiconductor is used for each of a charge accumulation control transistor and a reset transistor which are in a pixel portion. After a reset operation of the signal charge accumulation portion is performed in all the pixels arranged in the matrix, a charge accumulation operation by the photodiode is performed in all the pixels, and a read operation of a signal from the pixel is performed per row. Accordingly, an image can be taken without a distortion.