Image forming apparatus
AssigneeRicoh Company, Ltd.
InventorRyusuke Mase
Life of this patent
Estimating the term…
Abstract
An image forming apparatus includes an image bearer, a developing device, a motor, and circuitry. The developing device includes a screw and a developing roller. The screw stirs and conveys a developer. The developing roller bears the developer stirred and conveyed by the screw, brings the developer into contact with the image bearer, and develops an electrostatic latent image on the image bearer. The motor drives the developing device at multiple process speeds. The circuitry is configured to cause the motor to drive the screw and the developing roller before the developing roller starts developing the electrostatic latent image on the image bearer and adjust a drive time of the motor based on a process speed in a previous printing and a process speed in a next printing.
Claims8
An image forming apparatus comprising:
- an image bearer;
- a developing device including:
- a screw to stir and convey a developer;
- and
- a developing roller to:
- bear the developer stirred and conveyed by the screw;
- bring the developer into contact with the image bearer;
- and
- develop an electrostatic latent image on the image bearer;
- a motor to drive the developing device at multiple process speeds;
- and
- circuitry configured to:
- cause the motor to drive the screw and the developing roller before the developing roller starts developing the electrostatic latent image on the image bearer;
- and
- adjust a drive time of the motor before developing the electrostatic latent image based on a process speed in a previous printing and a process speed in a next printing.
An image forming apparatus comprising:
- an image bearer;
- a developing device including:
- a screw to stir and convey a developer;
- and
- a developing roller to:
- bear the developer stirred and conveyed by the screw;
- bring the developer into contact with the image bearer;
- and
- develop an electrostatic latent image on the image bearer;
- a motor to drive the developing device at multiple process speeds;
- and
- circuitry configured to:
- cause the motor to drive the screw and the developing roller after the developing roller develops the electrostatic latent image on the image bearer;
- and
- adjust a drive time of the motor after developing the electrostatic latent image based on a process speed in a previous printing and a process speed in a next printing.
Dependencies are inferred from the claim text.