Kabushiki Kaisha Toshiba

Toshiba Tec Kabushiki Kaisha

Toshifumi Mimura

Kazufumi Ishida

Toru Homma

A decolorizing apparatus of an exemplary embodiment includes a feeding section, a decolorizing section, and a control section. The feeding section can supply a magnetic medium having a ferromagnet in at least a part thereof. The decolorizing section decolorizes a decolorable image formed on the magnetic medium by heating the magnetic medium. The control section controls the decolorizing section to be set to a temperature which is equal to or higher than a temperature at which the image can be decolorized and is lower than a Curie temperature of the ferromagnet of the magnetic medium during decolorizing of the magnetic medium.

Decolorizing apparatus, image forming apparatus, and decolorizing method

An image forming apparatus includes an image forming unit configured to form images that are to be transferred to first sheets, a fixing and erasing unit configured to fix the images onto the first sheets and erase images formed with a decolorizable material on second sheets, and a controller. The controller is configured to interrupt the image forming unit to stop forming images that are to be transferred to the first sheets, and control the fixing and erasing unit to carry out an erasing operation on the second sheets while the image forming unit is interrupted.

Image forming apparatus that erases images during interruption of image forming

According to one embodiment, an image forming apparatus that forms an image on a medium includes an image forming material erasable by heat, a storage medium having stored therein information concerning temperature for heating the image forming material, and a controller configured to control an image forming operation on the basis of the information concerning the temperature stored in the storage medium. The information concerning the temperature includes forming temperature, which is temperature for heating the image forming material during image formation, and erasing temperature, which is temperature for heating the image forming material during image erasing.

Image forming apparatus, erasing device, image erasing system, and consumable

An ink ribbon cartridge includes an ink ribbon onto which decolorizable ink is applied, a transfer unit configured to thermally transfer the decolorizable ink on the ink ribbon to a recording medium such that an image is formed on the recording medium as the ink ribbon is conveyed, and a heating unit configured to heat a portion of the ink ribbon that has passed the transfer unit when the image was formed on the recording medium, at a temperature at which the decolorizable ink is decolorized.

Ink ribbon cartridge and image forming apparatus including the same

According to one embodiment, an image forming apparatus includes: a storage medium which stores manufacture information to a consumable supply; a reading unit which reads information in the storage medium; a communication control unit which receives failure information of the consumable supply; a display unit which displays information; and a control unit which receives the failure information of the consumable supply by the communication control unit, then determines whether a consumable supply in use is equivalent to a failed consumable supply or not, and performs control to display the failure information on the display unit when the consumable supply is determined as equivalent to the failed consumable supply.

Image forming apparatus, failure information notification system and failure information notification method

When copying an object that has faded markings of color fadable toner and is printed with the color fadable toner, a threshold value changing key is displayed on a liquid crystal display of an operation panel to be pressed down. A main CPU sets a threshold valueand a threshold valuein an image processing unit upon detecting the threshold value changing key displayed on the liquid crystal display of the operation panel via a touch panel. The image processing unit eliminates a background image by using the set threshold valueand threshold value, thereby providing dark printing with an excellent image.

Image forming apparatus and image forming method

A printer control CPU of the image forming apparatus controls the normal toner replenishing rotation after rotating a toner bottle in the normal rotating direction by about &#xbe; turn and then immediately in the direction reverse to the normal rotating direction by about &#xbe; turn. These operations are performed twice as the process to separate residual toners adhered on the inner surface of a toner bottle.

Image forming apparatus and toner replenishing method

The present invention provides an image forming apparatus that suffers less toner particles scattering and a narrower variation in image density. In this image forming apparatus, a decrease of a contrast potential difference can be compensated by means of a developing bias voltage generator circuit and a grid bias voltage generator circuit, so that the image density can be kept constant. The apparatus includes a developing mechanism in which the respective average particle diameters of carrier members and toner particles, toner concentration, and the diameter and peripheral speed of a developing roller are optimized. Although the diameter of the developing roller is small, therefore, a high image density can be secured, and the value of toner particles scattering can be lowered.

Growing community of inventors

Kanagawa, Japan

Toshifumi Mimura