| Patent application number | Description | Published |
|---|
| 20110123921 | ELECTROPHOTOGRAPHIC TONER - An electrophotographic toner contains an electron donating color former compound, an electron accepting color developing agent, and a polyester binder resin having a weight average molecular weight Mw of 6000 or more and 25000 or less, and the toner is decolorized by heating. | 05-26-2011 |
| 20110176830 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - According to one embodiment, a method of setting, when at least one of image forming units does not perform image formation, an electric field between an image carrier and a transfer device of the image forming unit which does not perform the image formation to have the same direction as that of an electric field between the image carrier and the transfer device which perform the image formation and have a lower strength can be obtained. | 07-21-2011 |
| 20110212397 | ELECTROPHOTOGRAPHIC TONER - An electrophotographic toner, which is decolorized by heating and a glossiness after decolorization of which is less than 10, comprising an electron donating color former compound, an electron accepting color developing agent, and a polyester binder resin. | 09-01-2011 |
| 20110259237 | INKJET INK AND INKJET INK MANUFACTURING METHOD - A decolorizable inkjet ink includes a first particle that contains a color-forming compound, a color-developing agent, and a polar group-containing crystalline binder; and a second particle that contains a decoloring agent and a polar group-containing crystalline binder. | 10-27-2011 |
| 20110261133 | DECOLORING APPARATUS, IMAGE FORMING APPARATUS, AND DECOLORING METHOD - According to one embodiment, a decoloring apparatus includes: a heating rotating member having roughness (Rz) of a surface, which comes into contact with a conveyed sheet, equal to or larger than 3.5 μm and equal to or smaller than 6.0 μm and configured to heat and decolor a decolorable colorant on the sheet; and a pressing member configured to come into press contact with the heating rotating member to form a nip section between the pressing member and the heating rotating member and cooperate with the heating rotating member to nip and convey the sheet. | 10-27-2011 |
| 20110262166 | IMAGE FORMING APPARATUS - An image forming apparatus including: a heating member which heats a toner image formed on a recording medium using a decolorizable toner containing a binder resin and a coloring agent containing a color developable compound and a color developing agent and having a capsule structure covered with an outer shell; a pressing member which is in press contact with the heating member to form a nip portion and nips and conveys the recording medium in cooperation with the heating member; a temperature control section which controls the temperature of the heating member to a temperature not higher than the density maintaining threshold temperature of the toner and not lower than the melting threshold temperature of the toner; and a conveyance control section which controls the conveying speed of the recording medium in the nip portion such that a time required for the recording medium to pass through the nip portion is 100 msec or more. | 10-27-2011 |
| 20110262197 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - According to one embodiment, an image forming apparatus includes a mode setting section configured to set an operation mode in a manner that the image forming apparatus is operated in an erasing mode if an erasing operation is instructed, a supplying section configured to supply a medium on which the image formation is completed, and which is set in an designated or specified receiving section, a decoloring section configured to decolor the color of the formed image by carrying the medium to a heating section that includes at least heating and decoloring function, and a return section configured to return the operation mode to a predetermined mode except for the erasing mode from the erasing mode, when the last medium on which the image formation is completed and which is set in the receiving section is decolored. | 10-27-2011 |
| 20110262850 | TONER PRODUCING METHOD AND TONER - There is provided a method for producing a toner that includes encapsulated erasable colored fine particles aggregated with fine particles that contain at least a binder resin and a release agent. The method includes: mixing a dispersion of erasable fine particles with an aggregating agent to form an aggregating agent-containing colored fine particle dispersion; and mixing the aggregating agent-containing colored fine particle dispersion with a fine particle dispersion that contains at least a binder resin and a release agent, so as to aggregate the aggregating agent-containing colored fine particles with the fine particles that contain at least a binder resin and a release agent. In this way, the encapsulated colored fine particles are prevented from being released from the resultant toner particles, and an erasable toner can be obtained that has a narrow particle size distribution and that produces less fogging. | 10-27-2011 |
| 20110262857 | ELECTROPHOTOGRAPHIC TONER - An electrophotographic toner contains an electron donating color developable agent, an electron accepting color developing agent, and a polyester resin binder which is a polyester resin obtained by polycondensation of a carboxylic acid component and an alcohol component and has a crosslinked structure formed of a crosslinking component including at least either one of a trivalent or higher valent carboxylic acid and a trihydric or higher hydric alcohol, and is decolorized by heating. | 10-27-2011 |
