Patent application number | Description | Published |
20130108313 | IMAGE FORMING APPARATUS | 05-02-2013 |
20130259506 | IMAGE FORMING APPARATUS - A voltage maintenance element is connected to a contact member that contacts a primary transfer surface area of an intermediate transfer belt to which toner images are transferred from a plurality of image carriers between stretch members, in such a way as to prevent the electric potential of the intermediate transfer belt from varying between respective stations. | 10-03-2013 |
20130259543 | IMAGE FORMING APPARATUS - In existing image forming apparatuses, it is difficult to maintain each of a primary transfer member and a secondary transfer member at an optimum potential. | 10-03-2013 |
20130315616 | IMAGE FORMING APPARATUS - A high-voltage power source | 11-28-2013 |
20140023412 | IMAGE FORMING APPARATUS - It has been difficult to ensure satisfactory secondary transfer performance while ensuring satisfactory primary transfer performance by passing a current in the circumferential direction of an intermediate transfer belt from a current supply member. | 01-23-2014 |
20140105626 | IMAGE FORMING APPARATUS - A control unit is provided which controls at least one of a first power supply unit (a secondary transfer power supply connected to a secondary transfer roller) and a second power supply unit (high-voltage power supplies connected to a conductive brush and a conductive roller) so that a current supplied to a primary transfer region from a beginning of primary transfer until a beginning of secondary transfer has a magnitude larger than a magnitude of a current supplied to the primary transfer region from a beginning of image formation until the beginning of the primary transfer. | 04-17-2014 |
20150037075 | IMAGE FORMING APPARATUS - It has been difficult to ensure satisfactory secondary transfer performance while ensuring satisfactory primary transfer performance by passing a current in the circumferential direction of an intermediate transfer belt from a current supply member. | 02-05-2015 |
Patent application number | Description | Published |
20120120176 | LIGHT-EMITTING CHIP, LIGHT-EMITTING DEVICE, PRINT HEAD AND IMAGE FORMING APPARATUS - A light-emitting chip includes: a substrate; plural light-emitting elements arrayed in line on the substrate, each of the light-emitting elements including a light-emitting region having a length in an array direction of the array different from a length in a direction orthogonal to the array direction; and a light-up current supplying interconnection including plural connecting portions, each of the connecting portions being provided on the light-emitting region of a corresponding one of the light-emitting elements in a shorter direction of the light-emitting region either the array direction or the direction orthogonal to the array direction, each of the connecting portions being connected to an electrode provided on the light-emitting region, the light-up current supplying interconnection supplying a current for lighting up to the plural light-emitting elements through the plural connecting portions. | 05-17-2012 |
20140320577 | LIGHT-EMITTING COMPONENT, PRINT HEAD AND IMAGE FORMING APPARATUS - A light-emitting component includes: plural transfer thyristors each configured with a semiconductor layer stack laminating first to fourth semiconductor layers, and shifting to an ON state in order; plural coupling transistors each configured with the first to third semiconductor layers, provided to couple adjacent transfer thyristors, the first and the second semiconductor layers of the coupling transistor being continued to the first and the second semiconductor layers of the former transfer thyristor; plural first resistances, each provided between the third semiconductor layer of each transfer thyristor and a wiring for power supply; a second resistance having a resistance value smaller than a product of a resistance value of the first resistance and a ratio of a collector current of the coupling transistor to a cathode current of the transfer thyristor in the ON state; and plural light-emitting thyristors each configured with the semiconductor layer stack. | 10-30-2014 |
20140320579 | LIGHT-EMITTING COMPONENT, PRINT HEAD, IMAGE FORMING APPARATUS AND METHOD OF MANUFACTURING LIGHT-EMITTING COMPONENT - A light-emitting component includes: plural light-emitting thyristors, each including a semiconductor layer stack laminating first to fourth semiconductor layers in order, and emitting light at a predetermined wavelength in an ON state; plural transfer thyristors, each including the semiconductor layer stack, the plural transfer thyristors shifting to the ON state for transferring the ON state to set corresponding light-emitting thyristors in a light-enabled state; and plural coupling transistors, each including the first to third semiconductor layers in the semiconductor layer stack and provided to couple former and latter transfer thyristors, the first and second semiconductor layers of each coupling transistor being continued to the first and second semiconductor layers of the former transfer thyristor, and the third semiconductor layer of each coupling transistor being continued to the third semiconductor layer of the former transfer thyristor with a thickness to be depleted in a state where no voltage is applied. | 10-30-2014 |