Murata Machinery, Ltd.

Takehiro Nakajima

Shu Ikezaki

Yasuhiro Sakanashi

An image recording device includes a pressing force adjusting mechanism that adjusts a pressing force of a developing roller that is provided by an elastic member, against a photoconductive drum. This provides for modification and adjustment of the pressing force of the developing roller that is pressed against the photoconductive drum by the biasing force from the elastic member. Consequently, even where the developing rollers have various radius dimensions or where elastic force of the elastic member changes, adequate pressing force depending on each case can be applied to the developing roller, thereby improving the recorded quality of the image recording device.

Image recording device

A cleaning unit includes a cleaning member, a storage case, and a transport member. The cleaning member collects waste toner on a surface of the photoconductive drum. The storage case successively stores the waste toner collected by the cleaning member through an inlet. The transport member is provided in the storage case, and rotates to transport the waste toner in the storage case in a rotary axis direction. The transport member rotates with a central portion in the rotary axis direction protruding toward the inlet further than both side portions.

Cleaning unit and image forming device having the same

A toner cartridge includes a cylindrical supplying pipe having a toner opening port arranged on a side surface thereof; a cylindrical cover that is attached to the supplying pipe and has a cover opening port arranged on a side surface thereof, and a cam mechanism that is provided to the supplying pipe and the cover, and that reciprocates the cover between an opening position where the toner opening port and the cover opening port align with each other and a closing position where the toner opening port is closed by the cover, which closing position is in a skewed position with respect to the opening position. This arrangement provides a toner container that reduces toner leakage when being removed from a toner hopper.

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Kyoto, Japan

Takehiro Nakajima