Fujifilm Business Innovation Corp.

Tatsuya Tamai

Atsushi Funada

Mitsutoshi Hongo

Mizue Sekine

Satoshi Miyawaki

A developing device includes: a case in which a hollow transporting path is formed; a transporting member configured to transport a developer in the transporting path; a support portion fixed to an end portion of the case by a fastening member to support the transporting member at an end portion of the transporting path; and a cooling unit fixed by being sandwiched between the support portion and the case.

Developing device with transporting member and cooling unit fixed to a case

Provided is a developing device having a first transport member and a second transport member that are disposed in a first transport path and a second transport path provided at an upper side and a lower side in a gravitational direction. The transport members transport a developer so as to cause the developer to circulate between the first transport path and the second transport path. A partition wall that separates the first transport path and the second transport path from each other and has an opening including an open-close member that opens and closes the opening.

Developing device and image forming apparatus having an opening and closing member in a partition between conveying members

An attachable-detachable unit that is attachable to and detachable from a body. The unit includes a storage portion having a storage space in which powder is stored, the storage space including a bottom part that is continuous in one direction and a narrow region in which the storage space seen in the one direction has a smaller sectional area than in an other region; and a transport member extending in the one direction in the storage space and transporting the powder in the one direction such that at least some of the powder passes through the narrow region.

Growing community of inventors

Kanagawa, Japan

Tatsuya Tamai