Image forming apparatus and carrying control method
AssigneeToshiba Tec Kabushiki Kaisha
InventorEizo Kurita
Life of this patent
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Abstract
According to one embodiment, an image forming apparatus of the embodiment includes a roller, a plurality of developing units, an image forming unit, a sensor, and a control unit. The rollers carry a sheet. The plurality of developing units include different types of developing materials. The image forming unit forms a plurality of images on a transfer belt by the developing materials of each of the plurality of developing units. The sensor reads the plurality of images formed on the transfer belt. The control unit controls the speed of the roller based on the positions of the plurality of images read by the sensor.
Claims18
An image forming apparatus comprising:
- a roller configured to carry a sheet;
- a plurality of developing units each comprising different types of developing materials;
- an image forming unit configured to form a plurality of images on a transfer belt with developing materials of each of the plurality of developing units;
- a sensor configured to read the plurality of images formed on the transfer belt;
- and
- a control unit configured to control a speed of the roller based on positions of the plurality of images on the transfer belt read by the sensor, wherein
- the control unit controls a rotational speed of the roller when a difference between positions of the plurality of images is equal to or greater than a threshold value.
An image forming apparatus comprising:
- at least two rollers configured to carry a sheet;
- a plurality of developing units each comprising different types of developing materials;
- an image forming unit configured to form a plurality of images on a transfer belt with developing materials of each of the plurality of developing units;
- a sensor configured to read the plurality of images formed on the transfer belt;
- and
- a control unit configured to control a speed of at least one roller based on positions of the plurality of images on the transfer belt read by the sensor, wherein
- the control unit controls a rotational speed of the roller when a difference between positions of the plurality of images is equal to or greater than a threshold value.
A carrying control method comprising:
- carrying a sheet at a speed;
- forming a plurality of images on a transfer belt with developing materials of each of different types of developing materials;
- reading the plurality of images formed on the transfer belt;
- controlling the speed of carrying the sheet based on the read positions of the plurality of images;
- and
- controlling a rotational speed of a roller when a difference between positions of the plurality of images is equal to or greater than a threshold value.
Dependencies are inferred from the claim text.