Back to results
US 6,473,573 B2Granted
Developing apparatus with temperature sensor
AssigneeToshiba Tec Kabushiki Kaisha
InventorsTakao Izumi, Shinji Aoki
Life of this patent
Estimating the term…
Abstract
A developing apparatus of the present invention is provided with a developing roller for supplying a developing agent to an image carrier by rotation, a layer regulation blade for regulating the layer thickness of a developing agent supplied to the developing roller, a thermistor for sensing the temperature of either the developing roller or the layer regulation blade, and a control section for controlling the rotation of the developing roller in accordance with a temperature sensed by the thermistor.
Claims28
A developing apparatus comprising:
- a developing roller for supplying a developing agent to an image carrier by rotation;
- a layer regulation member for regulating a layer thickness of the developing agent supplied to the developing roller;
- temperature sensing means for sensing a temperature of either the developing roller or the layer regulation member;
- and
- control means for controlling the rotation of the developing roller in accordance with a temperature sensed by the temperature sensing means.
2 more elements
A developing apparatus comprising:
- a developing roller for supplying a developing agent to an image carrier by rotation;
- a layer regulation member for regulating a layer thickness of the developing agent supplied to the developing roller;
- temperature sensing means for sensing a temperature of either the developing roller or the layer regulation member;
- cooling means for cooling the developing roller by supplying air to the developing roller;
- and
- control means for controlling air supply by the cooling means in accordance with a temperature sensed by the temperature sensing means.
3 more elements
A developing apparatus comprising:
- first and second developing means which are selectively used and each of which includes:
- a developing roller for supplying a developing agent to an image carrier by rotation;
- a layer regulation member for regulating a layer thickness of the developing agent supplied to the developing roller;
- and temperature sensing means for sensing a temperature of either the developing roller or the layer regulation member;
- and
- switching means, operating when one of the first and second developing means is in use, for switching the developing means in use to another developing means in accordance with a temperature sensed by the temperature sensing means.
3 more elements
A developing apparatus comprising:
- a developing roller to supply a developing agent to an image carrier by rotation;
- a layer regulation blade to regulate a layer thickness of the developing agent supplied to the developing roller;
- a thermistor to sense a temperature of either the developing roller or the layer regulation blade;
- and
- a controller to control the rotation of the developing roller in accordance with the temperature sensed by the thermistor.
2 more elements
An image forming apparatus comprising:
- an image carrier;
- a developing roller to supply a developing agent to the image carrier by rotation;
- a layer regulation blade to regulate a layer thickness of the developing agent supplied to the developing roller;
- a thermistor to sense a temperature of either the developing roller or the layer regulation blade;
- a cooling fan to cool the developing roller by supplying air to the developing roller;
- and
- a controller to control air supply by the cooling fan in accordance with the temperature sensed by the thermistor.
4 more elements
An image forming apparatus comprising:
- an image carrier;
- a first developing device and a second developing device which are selectively used and each of which includes:
- a developing roller to supply a developing agent to the image carrier by rotation;
- a layer regulation blade to regulate a layer thickness of the developing agent supplied to the developing roller;
- a thermistor to sense a temperature of either the developing roller or the layer regulation blade;
- and
- a switch, operating when one of the first developing device and second developing device is in use, to switch one of the first developing device and second developing device in use to another of the first developing device and second developing device in accordance with the temperature sensed by the thermistor.
4 more elements
A color image forming apparatus comprising:
- an image carrier;
- a first developing device and a second developing device which are selectively used and each of which includes:
- a developing roller to supply a developing agent to the image carrier by rotation;
- a layer regulation blade to regulate a layer thickness of the developing agent supplied to the developing roller;
- a thermistor to sense a temperature of either the developing roller or the layer regulation blade;
- and
- a switch, operating when one of the first developing device and second developing device is in use, to switch one of the first developing device and second developing device in use to another of the first developing device and second developing device in accordance with the temperature sensed by the thermistor.
4 more elements
Dependencies are inferred from the claim text.