Decolorizable toner, toner cartridge, image forming apparatus, decolorizing system, decolorizing method, and decolorizing device
AssigneeToshiba Tec Kabushiki Kaisha
InventorsTsuyoshi Itou, Takafumi Hara
Life of this patent
Estimating the term…
Abstract
A decolorizable toner allows for easy distinguishing between a sheet which can be reused and a sheet which is hardly able to be reused from each other. The decolorizable toner includes a color developable compound, a color developing agent, a decolorizing agent, a magnetic material, and a binder resin. The color developable compound is a precursor compound of a dye. The color developing agent is an electron accepting compound which donates a proton to the color developable compound. The decolorizing agent is a compound which inhibits a coloring reaction between the color developable compound and the color developing agent.
Claims3
A decolorizing system, comprising:
- a separator including a magnetic sensor configured to detect a presence or an absence of an image including a fixed material of a decolorizable toner comprising:
- a color developable compound comprising a precursor compound of a dye;
- a color developing agent which is an electron accepting compound capable of donating a proton to the color developable compound;
- a decolorizing agent which is a compound capable of inhibiting a coloring reaction between the color developable compound and the color developing agent;
- magnetic material;
- and
- a binder resin;
- the separator being configured to separate a sheet on which the image is formed;
- and
- a decolorizer configured to decolorize the image.
A decolorizing device, comprising:
- a distinguishing sensor arrangement comprising a magnetic sensor, the magnetic sensor being configured:
- to detect a presence or an absence of an image including a fixed material of a decolorizable toner comprising:
- a color developable compound comprising a precursor compound of a dye;
- a color developing agent which is an electron accepting compound capable of donating a proton to the color developable compound;
- a decolorizing agent which is a compound capable of inhibiting a coloring reaction between the color developable compound and the color developing agent;
- magnetic material;
- and
- a binder resin;
- and
- to distinguish whether or not the image is formed;
- and
- a decolorizer configured to decolorize the image.
A decolorizing device, comprising:
- a distinguishing sensor configured:
- to detect a presence or an absence of an image including a fixed material of a decolorizable toner comprising:
- a color developable compound comprising a precursor compound of a dye;
- a color developing agent which is an electron accepting compound capable of donating a proton to the color developable compound;
- a decolorizing agent which is a compound capable of inhibiting a coloring reaction between the color developable compound and the color developing agent;
- magnetic material;
- and
- a binder resin;
- and
- to distinguish from each other a first sheet on which the image is formed and a second sheet on which the image is not formed;
- and
- a decolorizer configured to decolorize the image formed on the first sheet.
Dependencies are inferred from the claim text.