Image forming apparatus
AssigneeKonica Minolta Business Technologies, Inc.
InventorsSatoru Shibuya, Yasunori Nakayama, Hidetoshi Noguchi, Hideo Yamaki, Yasuo Tanaka, Hideji Higashimura, Tomohide Mori
Life of this patent
Estimating the term…
Abstract
An image forming apparatus has a control section. The control section controls a power supply for applying a bias voltage to a cleaning brush and a driving mechanism for the cleaning brush so that the cleaning brush 41 begins to rotate when a predetermined delay time has passed after the start of the application of the bias voltage to cleaning brush. Toner remaining on an image bearing body at an upstream side of a nip portion between the cleaning brush and the image bearing body is surely removed.
Claims11
An image forming apparatus comprising:
- an image bearing body for bearing a toner image on a surface thereof;
- a cleaning brush with a plurality of brush fibers on an outer periphery arranged so as to be rotatable in a state that the brush fibers are contacting with the image bearing body;
- a first driving section for rotating the cleaning brush;
- a bias voltage apply section for applying a bias voltage to the cleaning brush;
- and.
- a control section for controlling the first driving section and the bias voltage application section so that the cleaning brush begins to rotate after a predetermined first delay time has passed from starting of an application of the bias voltage to the cleaning brush.
An image forming apparatus, comprising:
- a rotatable image bearing body for bearing a toner image on a surface thereof;
- a first driving section for rotating the image bearing body;
- a cleaning brush with a plurality of brush fibers on an outer periphery arranged so as to be rotatable in a state that brush fibers are contacting with the image bearing body;
- a second driving section for rotating the cleaning brush;
- a bias voltage applying section for applying a bias voltage to the cleaning brush;
- and
- a control section for controlling the first driving section, second driving section, and bias voltage applying section so that the image bearing body rotates in a forward rotational direction, the cleaning brush rotates, and the bias voltage is applied to the cleaning brush during the image formation operation, and the image bearing body rotates in a reverse rotational direction for a predetermined period of time after a completion of one image formation operation and before a start of a next image formation operation.
An image forming apparatus comprising:
- an image bearing body for bearing a toner image on a surface thereof;
- a transfer device for transferring the toner image formed on the image bearing body onto a recording medium;
- a cleaning brush with a plurality of brush fibers on an outer periphery placed so as to be rotatable in a state that the brush fibers are in contact with the image bearing body;
- a driving section for rotating the cleaning brush;
- and
- a control section for controlling the driving section so that a rotational speed of the cleaning brush are increased after an occurrence of jamming of the recording medium.
An image forming apparatus comprising:
- an image bearing body for bearing a toner image on a surface thereof;
- a transfer device for transferring the toner image formed on the image bearing body onto a recording medium;
- a cleaning brush with a plurality of brush fibers on an outer periphery placed so as to be rotatable in a state that the brush fibers are in contact with the image bearing body;
- a driving section for rotating the cleaning brush;
- and
- a control section for controlling the driving section so that a rotational speed of the cleaning brush are increased during an image stabilization process.
Dependencies are inferred from the claim text.