A micro light-emitting diode (LED) display assembly includes a backplane, a passivation layer on the backplane, a micro LED on the passivation layer, and a non-transparent metal housing on the passivation layer. The housing includes a base portion on the passivation layer, a sidewall portion upwardly extending from the base portion, a cap portion connected at a top of the sidewall portion, an orifice in the cap portion, and a notch in the cap portion and adjacent to the orifice. The assembly also includes a translucent filter positioned in the notch and covering the orifice, and a pocket defined by an enclosed area in between the sidewall portion, the cap portion, the filter, and the passivation layer. The micro LED is encased within the pocket such that light transmitted from the micro LED directly hits and passes through the filter.

A micro light-emitting diode (LED) display assembly includes a backplane, a passivation layer on the backplane, a micro LED on the passivation layer, and a non-transparent metal housing on the passivation layer, wherein the housing includes a base portion on the passivation layer, a sidewall portion upwardly extending from the base portion, a cap portion connected at a top of the sidewall portion, an orifice in the cap portion, and a notch in the cap portion and adjacent to the orifice. The assembly also includes a translucent filter positioned in the notch and covering the orifice, and a pocket defined by an enclosed area in between the sidewall portion, the cap portion, the filter, and the passivation layer, wherein the micro LED is encased within the pocket such that light transmitted from the micro LED directly hits and passes through the filter.

An image forming apparatus includes a charging member; a light source that includes light source elements and that radiates charge-eliminating light toward the charging member; a processing member that performs a process on the charging member; a function member provided to enable the process of the processing member and disposed between the light source and the charging member, the function member facing a radiation path of the charge-eliminating light and extending in an arrangement direction of the light source elements; and an adjusting portion formed on a surface of the function member that faces the radiation path, the adjusting portion adjusting an amount of irradiation of the charging member by the charge-eliminating light so as to reduce a difference in the amount of irradiation between regions corresponding to arrangement positions of the light source elements and regions between the light source elements.

A sheet detecting device usable with a sheet feeding device for feeding a sheet, the sheet detecting device includes a common light emitter; a first light receptor and a second light receptor for receiving the light emitted by the common light emitter and output a signal in response to the reception of the light; a first detector configured to detect presence or absence of the sheet by switching the signal outputted by light receptor, in response to the sheet blocking or reflecting the light emitted by the common light emitter; a movable portion capable of being moved by the sheet which is moving; and a second detector configured to detect presence or absence of the sheet by switching the signal outputted by the second light receptor, in response to the movable portion forming or blocking a optical path for the light emitted by the common light emitter.

An image forming apparatus includes a charging member; a light source that includes light source elements and that radiates charge-eliminating light toward the charging member; a processing member that performs a process on the charging member; a function member provided to enable the process of the processing member and disposed between the light source and the charging member, the function member facing a radiation path of the charge-eliminating light and extending in an arrangement direction of the light source elements; and an adjusting portion formed on a surface of the function member that faces the radiation path, the adjusting portion adjusting an amount of irradiation of the charging member by the charge-eliminating light so as to reduce a difference in the amount of irradiation between regions corresponding to arrangement positions of the light source elements and regions between the light source elements.

A sheet detecting device usable with a sheet feeding device for feeding a sheet, the sheet detecting device includes a common light emitter; a first light receptor and a second light receptor for receiving the light emitted by the common light emitter and output a signal in response to the reception of the light; a first detector configured to detect presence or absence of the sheet by switching the signal outputted by light receptor, in response to the sheet blocking or reflecting the light emitted by the common light emitter; a movable portion capable of being moved by the sheet which is moving; and a second detector configured to detect presence or absence of the sheet by switching the signal outputted by the second light receptor, in response to the movable portion forming or blocking a optical path for the light emitted by the common light emitter.

An electrophotographic photoreceptor includes a conductive substrate, a charge generation layer on the conductive substrate, a charge transport layer on the charge generation layer, and a protection layer on the charge transport layer, in which a ratio L/ of a total thickness L (m) of the charge transport layer and the protection layer to a dielectric constant (F/m) of the charge transport layer and the protection layer as a whole in a thickness direction is 3 or more and 6 or less.