An image forming apparatus includes an apparatus body, an image bearing member, a developing unit, a power supply, and a contact portion. The developing unit includes a developing container configured to store developer, a developer bearing member configured to rotate while bearing the developer stored in the developing container, and a developing magnet provided within the developer bearing member and comprising a plurality of magnetic poles in a circumferential direction. The developing unit is removably provided to the apparatus body. The contact portion electrically is connected with the power supply. The developing unit comprises a conductive member which is made of a conductive resin comprising a fixing portion fixing the developing magnet so that the magnetic poles of the developing magnet are fixed unrotatably with respect to the developing container. The conductive member is provided to electrically connect the contact portion with the developer bearing member.

Systems and methods relating to accurate Channel State Information (CSI) measurements for a License Assisted Secondary Cell (LA SCell) are disclosed herein. An exemplary user equipment enabled includes a transceiver, at least one processor, and memory containing instructions executable by the at least one processor whereby the user equipment operates to detect whether a downlink control information (DCI) message indicating that a Channel State Information Reference Symbol (CSI-RS) transmission from an LA SCell of the user equipment is present in a subframe. When the user equipment detects that the DCI message indicates that a CSI-RS transmission from the LA SCell is present in the subframe, it processes a CSI-RS measurement. When the user equipment detects that the DCI message does not indicate that a CSI-RS transmission from the LA SCell is present in the subframe, it refrains from processing the CSI-RS measurement.

A developer circulated between first and second chambers in a function separation type development device including a developer discharge portion is prevented from being excessively discharged from the developer discharge portion. The developer discharge portion is disposed in the first chamber and is provided downstream of a region on a developer bearing member in the direction in which the developer in the first chamber is conveyed, the region corresponding to a maximum image region formable on an image bearing member.

An image forming apparatus according to an embodiment may include a control section that controls operation of the image forming unit; a driving source that drives the image forming unit and drives, based on an instruction of the control section, rotation of a cleaning member whose sliding member passes a gap between a first light transmission window of a first optical path and a second light transmission window of a second optical path in a developer storing section while sliding on the first light transmission window and the second light transmission window. The control section detects, based on a light reception information detected by a light receiving element, a passage timing at which the sliding member passes through the gap, and stops the driving by the driving source based on the passage timing.

A developing device includes: an image bearing member; a plurality of developing rollers each supplying toner to the image bearing member, and developing an electrostatic latent image on the image bearing member into a toner image; and a hardware processor analyzing values representing density fluctuations during the toner being supplied from the developing rollers to the image bearing member, for the respective developing rollers, and correcting a control value for an image density of at least one developing roller among the developing rollers based on an result of the analyzing so as to eliminate the density fluctuations, in consideration of an effect caused at the developing roller on a downstream side in a rotational direction of the image bearing member by correcting the control value for the image density of the developing roller on an upstream side.

A developing apparatus includes a rotatable developer carrying member, a first chamber to supply developer to the developer carrying member, and a second chamber to collect the developer from the developer carrying member. A first conveyance screw in the first chamber conveys the developer in a first conveyance direction, and a second conveyance screw conveys the developer in the second chamber. The second conveyance screw includes a rotary shaft, a first vane portion, and a second vane portion provided downstream of the first vane portion. A developer discharge portion is disposed upstream of the second vane portion in the first conveyance direction and discharges excess developer. The developer discharge portion is disposed in a predetermined area of the second chamber in which the developer is deliverable to a communication portion, and is provided in a bottom portion in the predetermined area of the second chamber.

A developing device includes: an image bearing member; a plurality of developing rollers each supplying toner to the image bearing member, and developing an electrostatic latent image on the image bearing member into a toner image; and a hardware processor analyzing values representing density fluctuations during the toner being supplied from the developing rollers to the image bearing member, for the respective developing rollers, and correcting a control value for an image density of at least one developing roller among the developing rollers based on an result of the analyzing so as to eliminate the density fluctuations, in consideration of an effect caused at the developing roller on a downstream side in a rotational direction of the image bearing member by correcting the control value for the image density of the developing roller on an upstream side.

A drive transmission unit is described that includes a drive source, and a rotatable drive transmitting member to transmit a driving force from the drive source. The drive transmitting member includes a bottom part intersecting an axis of the drive transmitting member, a circular transmitting part extending from the bottom part in an axial direction of the drive transmitting member and including an internal toothed surface on an inner circumferential surface of the transmitting part to mesh with a first member, and a first projecting part and a second projecting part projecting in opposite directions from the bottom part along the axial direction of the drive transmitting member and having different diameters.

If a user is not familiar with the operation for the developer supply container, the rotating operation for the developer supply container may be insufficient, so that developer supply container does not reach a predetermined operating position, with the result of abnormal developer supply. by increasing a rotation load of a second gear 6 which is in an operable connection with a drive gear member 12 of the developer receiving apparatus 10 by a function of a locking member 7, the developer supply container 1 mounted to the developer receiving apparatus 10 is rotated toward the supply position. After the developer supply container 1 rotates to the supply position, the locking by the locking member 7 is released, by which the rotation load applied to the second gear 6 is reduced, so that drive transmission, thereafter, to the feeding member 4 for developer supply is smooth.

Systems and methods relating to accurate Channel State Information (CSI) measurements for a License Assisted Secondary Cell (LA SCell) are disclosed herein. A wireless device operates in a cellular communications network according to a carrier aggregation scheme using both a licensed frequency band and an unlicensed frequency band operates to determine whether a CSI Reference Symbol (CSI-RS) transmission from an LA SCell is present in a subframe, where the LA SCell is in an unlicensed frequency band. Upon determining that a CSI-RS transmission is present in the subframe, the wireless device performs a first type of interference measurement on configured CSI Interference Measurement (CSI-IM) resources in the subframe. Upon determining that a CSI-RS transmission is not present in the subframe, the wireless device performs a second type of interference measurement on the configured CSI-IM resources in the subframe. Related methods and storage media are also described.