Image forming apparatus including air-flow direction changing around transferring device
AssigneeBrother Kogyo Kabushiki Kaisha
InventorsHideaki Deguchi, Satoru Ishikawa, Hidenori Hisada
Life of this patent
Estimating the term…
Abstract
A processing apparatus, including an image carrier which carries a developing-material image formed by developing an electrostatic latent image with a developing material, a transferring device which transfers the developing-material image from the image carrier to a transfer object, and a cover member which at least partly covers the transferring device. The cover member has one or more air-flow holes which allow an air to flow therethrough between an inner side thereof opposed to the transferring device and an outer side thereof opposite to the inner side.
Claims21
An image forming apparatus, comprising:
- a processing apparatus including
- an image carrier which carries a developing-material image formed by developing an electrostatic latent image with a developing material, a transferring device which transfers the developing-material image from the image carrier to a transfer object, and
- a cover member which at least partly covers the transferring device and which has at least one air-flow hole which allows an air to flow therethrough between (a) an inner side thereof opposed to the transferring device and (b) an outer side thereof opposite to the inner side;
- a resistance-related-value measuring device which measures a resistance-related value of the transferring device;
- an air-flow-direction changing device which changes a direction of flow of an air around the transferring device;
- and
- a control device which controls the air-flow-direction changing device, based on the resistance-related value measured by the resistance-related-value measuring device.
An image forming apparatus, comprising:
- an image carrier which carries a developing-material image formed by developing an electrostatic latent image with a developing material;
- a transferring device which transfers the developing-material image from the image carrier to a transfer object;
- a resistance-related-value measuring device which measures a resistance-related value of the transferring device;
- an air-flow-direction changing device which changes a direction of flow of an air around the transferring device;
- and
- a control device which controls the air-flow-direction changing device, based on the resistance-related value measured by the resistance-related-value measuring device.
An image forming apparatus, comprising:
- an image carrier which carries a developing-material image formed by developing an electrostatic latent image with a developing material;
- a transferring device which transfers the developing-material image from the image carrier to a transfer object;
- a heat generator which generates a heat;
- an air-flow generator which includes an electric fan, and an air passage communicating with the electric fan, the heat generator and the transferring device, and which generates an air flow around the transferring device;
- and
- a control device which controls the air-flow generator to increase a temperature of the transferring device, by generating the air flow around the transferring device and conveying the heat generated by the heat generator, to the transferring device via the air passage, and to decrease the temperature of the transferring device, by generating the air flow around the transferring device, without conveying the heat to the transferring device.
Dependencies are inferred from the claim text.