Abstract: A developing device includes a housing in which a circulation path is formed by a first path through which a developer passed to a developing roll flows, a second path disposed offset from the first path in a direction of gravity, a pair of connecting ports connecting the first path and the second path, and a transport member that operates in the housing. The transport member transports the developer in a determined direction, or a reverse direction to the determined direction, in the circulation path according to a load applied for driving the transport member.

Abstract: A toner container includes: a container that accommodates toner and transports, by rotating, the toner to an opening disposed at a first end portion in a direction of a rotation axis; a support portion that covers a periphery of the container near the first end portion, and supports the container to be rotatable in a circumferential direction, the support portion being attached to an image forming apparatus body and having a sealant interposed between the support portion and the container; and a fixing portion that fixes the container and the support portion to each other while the sealant is compressed when the support portion is rotated relative to the container in a first circumferential direction.

Abstract: A toner container includes: a container that accommodates toner and transports, by rotating, the toner to an opening disposed at a first end portion in a direction of a rotation axis; a support portion that covers a periphery of the container near the first end portion, and supports the container to be rotatable in a circumferential direction, the support portion being attached to an image forming apparatus body and having a sealant interposed between the support portion and the container; and a fixing portion that fixes the container and the support portion to each other while the sealant is compressed when the support portion is rotated relative to the container in a first circumferential direction.

Abstract: A developing device includes: a storage part in which a developer is stored; a transport body that includes a spiral blade and transports the developer via a rotation thereof; a developing body to which the developer is supplied from the transport body; an attachment part which is disposed between the transport body and the developing body and includes an opening allowing the developer supplied from the transport body to the developing body to pass and to which a sealing member sealing the opening is detachably attached; and a connection portion which extends to cross the opening at a spiral angle of the blade as viewed from the developing body toward the transport body and of which one end portion and the other end portion are connected to the attachment part.

Abstract: A developing device includes: a storage part in which a developer is stored; a transport body that includes a spiral blade and transports the developer via a rotation thereof; a developing body to which the developer is supplied from the transport body; an attachment part which is disposed between the transport body and the developing body and includes an opening allowing the developer supplied from the transport body to the developing body to pass and to which a sealing member sealing the opening is detachably attached; and a connection portion which extends to cross the opening at a spiral angle of the blade as viewed from the developing body toward the transport body and of which one end portion and the other end portion are connected to the attachment part.

Abstract: A sensor cleaning device includes: a cleaning member including an inclined portion that wipes and cleans an entire surface of a sensor, which includes a long side portion extending in a longitudinal direction and a short side portion extending in a lateral direction intersecting with the longitudinal direction, while moving relative to the surface of the sensor in the longitudinal direction of the surface of the sensor and is disposed obliquely to a wiping direction so that an upstream end portion of the inclined portion in the wiping direction is positioned outside the surface of the sensor in the lateral direction; and a moving mechanism that moves the cleaning member in the wiping direction and in a direction opposite to the wiping direction.

Abstract: A developing device includes a housing in which a circulation path is formed by a first path through which a developer passed to a developing roll flows, a second path disposed offset from the first path in a direction of gravity, and a pair of connecting ports connecting the first path and the second path; and a transport member that operates in the housing to transport the developer in a determined direction in the circulation path, in which the transport member transports the developer in the determined direction in a case where a load at a determined time during transportation in the determined direction is equal to or less than a reference value, transports the developer in a reverse direction to the determined direction in a case where the load at the determined time during transportation in the determined direction exceeds the reference value, and transports the developer in the determined direction in a case where a load during or after transportation in the reverse direction is equal to or less than

Abstract: A sensor cleaning device includes: a cleaning member including an inclined portion that wipes and cleans an entire surface of a sensor, which includes a long side portion extending in a longitudinal direction and a short side portion extending in a lateral direction intersecting with the longitudinal direction, while moving relative to the surface of the sensor in the longitudinal direction of the surface of the sensor and is disposed obliquely to a wiping direction so that an upstream end portion of the inclined portion in the wiping direction is positioned outside the surface of the sensor in the lateral direction; and a moving mechanism that moves the cleaning member in the wiping direction and in a direction opposite to the wiping direction.