Canon Kabushiki Kaisha

Shota Takami

Teppei Nagata

Ryota Fujioka

Takehiro Kojima

Ryo Nawata

Yuichiro Miki

A motion control apparatus includes a first movable part, a second movable part, a first measurement device for measuring a motion of the first movable part, a first compensator for generating a first manipulated variable based on an output from the first measurement device and a target value for controlling the motion of the first movable part, a generator for generating an observed value concerning a relative motion between the first movable part and the second movable part, a second compensator for generating a second manipulated variable based on the observed value, and a calculator for generating a manipulated variable for driving the first movable part based on an output from the first compensator and an output from the second compensator. For the second compensator, a parameter value for generating the second manipulated variable is decided by machine learning.

Motion control apparatus, lithography apparatus, planarization apparatus, processing apparatus, and article manufacturing method

A developing device includes a rotatable developer carrying member carrying a liquid developer on a carrying surface for developing an electrostatic latent image borne on an image bearing member, and an end portion restricting member, provided in contact with the developer carrying member at an end portion of the developer carrying member with respect its rotational axis direction, for restricting movement of the liquid developer in the rotational axis direction of the developer carrying member. A contact angle of the liquid developer to a side surface of the end portion restricting member on a side where the developer carrying member carries the liquid developer is larger than a contact angle of the liquid developer to the carrying surface of the developer carrying member, and the contact angle of the liquid developer to the side surface of the end portion restricting member is 45&#xb0; or more.

Developing device having liquid developer movement restriction

An image forming apparatus includes a control unit configured to execute a stop mode in which, after image forming operation is stopped, a developer bearing member is rotated for a predetermined time with a potential difference between a film forming electrode and a developer bearing member set to zero or smaller than that during image formation, and thereafter, the rotation of the developer bearing member is stopped.

Image forming apparatus

A developing apparatus includes a developer bearing member, a developer container, and a storage tank arranged within the developer container to store liquid developer to be supplied to the developer bearing member. The storage tank includes a first bottom surface including an inclined portion that is inclined downward with respect to a horizontal direction in a rotational axis direction of the developer bearing member, and a discharge port arranged on a lower end of the inclined portion of the first bottom surface. The developer container includes a second bottom surface including an inclined portion that is inclined downward with respect to the horizontal direction toward an opposite direction as the inclined portion of the first bottom surface in the rotational axis direction of the developer bearing member, and a discharge port arranged on a lower end of the inclined portion of the second bottom surface.

Developing apparatus

A developer container is capable of supplying a liquid developer to a portion, of a surface of a cleaning roller, between a cleaning position X and a contact position Y with respect to a rotational direction of the cleaning roller. A free end of a cleaning blade is positioned in a range of 65&#xb0; or more and less than 95&#xb0; as a positive angle of the rotational direction of the cleaning roller when a line passing through a center of the cleaning roller and an upper end portion of the cleaning roller with respect to a direction of gravitation is at 0&#xb0; (reference line G). In this case, the cleaning blade is disposed so that an angle &#x3b1; between a line F perpendicular to a line E connecting the center of the cleaning roller and the free end of the cleaning blade, and the cleaning blade is in a range of 35&#xb0; or more and less than 60&#xb0; .

Growing community of inventors

Kamagaya, Japan

Shota Takami