An image forming apparatus includes a first moving member moving between a first position which is a position not in contact with a recording material and a second position which is a position in contact with the recording material, and a second moving member positioned in a third position in a state where an attachable/detachable unit is not attached to an apparatus main body and in a fourth position in a state where the attachable/detachable unit is attached to the apparatus main body. An optical sensor includes a light-emitting portion and a light-receiving portion, and a flag member moves between a transmission position and a light-shielding position and moves in conjunction with movement of the first moving member from the first position to the second position and with a movement of the second moving member from the third position to the fourth position.

An image forming apparatus includes: a frame; a cover movable between a closed position and an open position; a fixing unit including a heating member and a pressure roller configured to form a nipping region therebetween; an adjustment mechanism configured to adjust a nipping pressure between the heating member and the pressure roller in conjunction with movement of the cover; and a link mechanism connected to both the adjustment mechanism and the cover. The adjustment mechanism includes an arm pressing the heating member such that the heating member and the pressure roller form the nipping region. The link mechanism includes: a first link connected to the cover; a second link connected to the first link and pivotally movable about an axis extending in a width direction; and a third link connected to both the second link and the adjustment mechanism. The third link is movable in a front-rear direction.

To provide an image forming device that can prompt a user to check whether a waste toner container is completely attached.

Resolution means The image forming device includes a housing, an access cover attached in an openable/closable manner to the housing, a waste toner container attachable to the housing with the access cover open, and a lock lever that locks the waste toner container and the housing. The access cover includes a protruding portion protruding toward an interior of the housing. The lock lever transitions between a locked state and a pressed state of being pressed by the waste toner container, and, when in the pressed state, moves to a preventing position at which the lock lever blocks the protruding portion and prevents the access cover from closing, and, when in the locked state, moves to a retracted position at which the lock lever does not block the protruding portion.

A skeleton frame has a pair of corner columns facing each other. An image forming apparatus includes a pair of support shafts protruding inward from respective inner side surfaces in the pair of corner columns, and an opening/closing member rotatably supported on a lower end portion by the pair of support shafts. A specific member moves horizontally from an outer side of the skeleton frame through between the pair of corner columns and is attached inside the skeleton frame. At least one of the pair of support shafts is also used as a guide portion that guides the specific member when the specific member is inserted into the skeleton frame through between the pair of corner columns.

An image forming apparatus includes: an image forming portion; a first metal side plate and a second metal side plate; an antenna; and a housing on which a discharging port is disposed, wherein the housing includes a top cover that is disposed at a position vertically higher than the first metal side plate, wherein in a region on a downstream side with respect to the antenna in a discharging direction where a recording material is discharged from the discharging port, an upper end of the first metal side plate is located at a position vertically lower than the antenna, and a resin support portion connected to the first metal side plate is disposed in the region such that the resin support portion supports the top cover, wherein the antenna and the resin support portion are disposed along the upper end of the first metal side plate.

A photoconductive drum for an electrophotographic image forming device according to one example embodiment includes a cylindrical drum member. A shaft defines a rotational axis of the photoconductive drum. An end cap is positioned at an axial end of the drum member. An electrical contact is positioned against an axially inboard side of the end cap. The electrical contact electrically connects the shaft to the drum member. The electrical contact includes a plurality of projections that contact an inner circumferential surface of the drum member. A plurality of grooves are formed in an outer circumferential surface of the end cap.

A cartridge includes a photosensitive drum, the movable member movable relative to the photosensitive drum to control an inclination angle of a drive transmission member. The movable member is movable between a first position for reducing an inclination angle of the drive transmission member relative to the photosensitive drum and a second position retracted from the first position. By this, driving connection can be smoothly carried out.

According to a first aspect of the present invention, there is provided a toner cartridge detachably mountable to a receiving device, the toner cartridge comprising a container including a accommodating portion for accommodating the toner and a discharge opening for discharging the toner from the accommodating portion into the receiving device; and an open/close member including a closing portion for closing the discharge opening and an engaging portion movable relative to the closing portion, the open/close member being rotatable relative to the container between (a) an opening position for causing the closing portion to open the discharge opening and (b) a closing position for causing the closing portion to close the discharge opening, wherein the engaging portion is movable relative to the closing portion between (c) a engaging position for engagement with the receiving device to receive a force for moving the open/close member from the opening position to the closing position when the toner cartridge is dismounted from the receiving device and (d) a retracted position retracted from the engaging position, and wherein the engaging portion is movable from the retracted position to the engaging position with rotation of the open/close member from the closing position to the opening position.

An apparatus includes a developer container to and from which a replenishment container is attachable and detachable and which includes an accommodating portion and a replenishment port, a transfer portion configured to transfer a developer image on an image bearing member onto a recording material, a supporting tray including a supporting surface configured to support the recording material thereon, and a discharge portion configured to discharge the recording material, onto which the developer image has been transferred, on the supporting surface, wherein the supporting surface has an opening portion opening such that the replenishment port is exposed through the supporting surface, and wherein an opening/closing member configured to be movable between a closed position where the opening/closing member covers the replenishment port and serves as a part of the supporting surface and an open position where the replenishment port is exposed is provided.

According to at least one embodiment, a failure prediction server includes an interface, a memory, and a processor. The interface is configured to communicate with equipment including a component that deteriorates over time. The memory is configured to store measurement data acquired from the equipment. The processor is configured to set a monitoring start condition for failure prediction in the corresponding equipment based on the measurement data acquired as initial data from the equipment, accumulate the measurement data acquired from the equipment in the memory after the monitoring start condition is satisfied, and predict a failure of the component based on the measurement data accumulated in the memory.