A printing device includes a first ejector that ejects a recording medium to an exterior, a second ejector that enhances a rigidity of the recording medium more than by the first ejector, and ejects the recording medium to the exterior, and an ejector selector that selects either the first ejector or the second ejector.

According to one embodiment, a photovoltaic system contains a photovoltaic element comprising a photoelectromotive force part, a first transmitting member, and a second transmitting member, the photoelectromotive force part having a light transmitting property and generating an electromotive force by light irradiation, the first transmitting member and the second transmitting member being arranged at both sides of the photoelectromotive force part in a thickness direction, light transmittances of the first transmitting member and the second transmitting member being electrically changed; a control part configured to maximize a power generation amount of the photovoltaic element by changing the respective light transmittances of the first transmitting member and the second transmitting member while a light transmittance of a whole photovoltaic element is kept constant.

Provided is an image-forming apparatus that prevents a drop in processing speed even when a preceding job is interrupted by a simple job (interrupt job). The image-forming apparatus includes a printer unit that prints on paper, a first transporting path that passes by the printer unit, a second transporting path that path branches off from the first transporting path and moves paper that has been turned over from front to back further upstream than the printer unit, a storage unit that stores a condition table indicates conditions for which a preceding job can be interrupted by an interrupt job, and a system-control unit that references the condition table, and when the preceding job can be interrupted, sets a printing order so that printing of the interrupt job is inserted into the printing order of the preceding job.

A recording material determination apparatus includes a transmission unit, a reception unit, and a determination unit. The transmission unit transmits an ultrasonic wave to a recording material. The reception unit vibrates when the reception unit receives the ultrasonic wave having been transmitted from the transmission unit and having passed through the recording material, and outputs a signal corresponding to a vibration state. The determination unit determines a basis weight of the recording material in accordance with the signal output from the reception unit. A resonance frequency of the reception unit differs from a resonance frequency of the transmission unit, and the reception unit is capable of receiving a sound wave in an ultrasonic range and a sound wave in an audible range.

The present disclosure provides an electrophotographic photosensitive member that suppresses electric potential fluctuations in repeated use. The electrophotographic photosensitive member includes a support, a photosensitive layer and a protective layer, in this order, wherein the photosensitive layer includes a compound having a structure represented by formula (1), and the protective layer includes a resin having a structure represented by formula (2) and a structure represented by formula (3).

A drive transmission apparatus includes an engage member that is rotatable in a radially displaced state with respect to a shaft member and an engaged member that is rotatable centering on an axis parallel with the shaft member. The engage member and the engaged member are engaged with and disengaged from each other by relatively moving along an axial direction. The drive transmission apparatus further includes a moving portion which can move the engage member in a direction in which a rotational axis of the engage member approaches an axis of the shaft member in a disengaged condition in which the engage member is disengaged from the engaged member. The moving portion thus regulates offset amount of the engage member in the disengaged condition, so that the engage member and the engaged member reliably engage with each other.

A sheet conveying apparatus includes an abutment member against which a leading end of a sheet conveyed by a conveying roller abuts, a phase determiner that determines a rotation phase of a rotor of a motor driving the conveying roller, a controller that controls the motor by controlling the value of a torque current component and the value of an excitation current component so that a difference between an instruction phase and the rotation phase is decreased, and a torque determiner that determines load torque exerted on the rotor. The controller continues driving of the motor if the load torque is lower than predetermined torque in a state in which the leading end of the sheet abuts against the abutment member to deflect the sheet and stops the driving of the motor if the load torque is higher than or equal to the predetermined torque.

An image forming device includes a casing and a medium detecting mechanism. A medium entrance is formed on the casing. The medium detecting mechanism includes a detector, a first pivoting component, a second pivoting component and a resilient component. When at least one medium enters into the medium entrance and abuts against the first pivoting component, the at least one medium drives the first pivoting component to pivot in a first pivoting direction, so that the second pivoting component is driven by the resilient component to pivot in the first pivoting direction to actuate the detector for generating a signal. When the second pivoting component is stopped from pivoting in the first pivoting direction, deformation of the resilient component allows the first pivoting component to be driven by the at least one medium to pivot relative to the second pivoting component in the first pivoting direction continuously.

An image display apparatus includes a display section that displays an image, a detection section that detects a direction of the face of a user, and a change section that changes an image to be displayed on the display section from an image for a first direction to an image for a second direction, the image for the first direction and the image for the second direction being images having an identical attribute, in a case where the direction of the face of the user, which is detected by the detection section, is changed from the first direction to the second direction.

An image forming apparatus capable of controlling density of an output image with high accuracy regardless of variation of internal temperature. A controller controls an image forming unit to form a measurement image, controls a light receiving unit to receive reflected light from the measurement image, controls a conversion unit to convert an output value of the light receiving unit, and controls an image formation condition based on a value that is obtained by converting the output value. An adjustment unit controls the light receiving unit to receive reflected light from an image bearing member, and adjusts the emission light amount of an emission unit based on the reflected light from the image bearing member. A selection unit selects a conversion condition from among conversion conditions based on a reference temperature that is detected when the adjustment unit adjusts the emission light amount and a current temperature.