摘要:
A transfer apparatus includes a transfer belt being configured to carry an image, a transfer roller having an elastic layer and being configured to transfer the image from the transfer belt onto a transfer material, and a backup roller being configured to have pressure against the transfer roller with the transfer belt therebetween in order to form a transfer nip portion. The transfer nip portion includes a pressure-contact nip and a contact nip. A length of the contact nip is smaller than half a length of the pressure-contact nip in the rotational direction of the transfer roller.
摘要:
A developing device includes: a developer storage portion which stores a liquid developer including toner and carrier liquid; a first coating member which rotates and coats the liquid developer stored in the developer storage portion; a second coating member which comes into contact with the first coating member and rotates in a direction opposite to that of the first coating member and slower than a rotary peripheral velocity of the first coating member; and a developer supporting body which comes into contact with the second coating member and rotates in the same direction as that of the second coating member and faster than a rotary peripheral velocity of the second coating member.
摘要:
An image forming apparatus includes an image processing unit that has line heads that include a plurality of light sources disposed in a line shape in a main scanning direction, causes each light source to emit light onto image data to form pixels on an exposed surface, and performs image exposure, and creates two-dimensional image data to be printed on the basis of an image signal from the outside and an operation instruction. The image processing unit corrects the two-dimensional image data such that a density irregularity is corrected on the basis of light amount data and/or optical characteristic data for each of the pixels for the line heads, according to a correction value created on the basis of the light amount data and/or optical characteristic data for each of the pixels of the line heads.
摘要:
An image forming apparatus includes a line head that performs exposure on a latent image carrier to form a latent image. The line head includes first and second light-emitting elements arranged in a first direction; and an optical system that images light emitted from the first and second light-emitting elements. When a difference between the maximum and minimum values of a longitudinal aberration of the optical system is G, a distance in the first direction between centers of geometry of the first and second light-emitting elements is Pel, and an optical magnification of the optical system is β, a relation of G>|β|·Pel is satisfied.
摘要:
A control method and an image forming apparatus. The apparatus includes a latent image carrier; a development apparatus for developing a liquid developer containing a toner, a carrier liquid and a dispersant soluble in the carrier liquid therein on the latent image carrier; an intermediate transfer medium to which a developer image developed on the latent image carrier is transferred; a transfer apparatus for transferring the developer image on the intermediate transfer medium to a transfer material; and a dispersant collecting liquid application unit for applying a dispersant collecting liquid on the intermediate transfer medium. The method includes performing the control such that after finishing of transfer of the developer image onto intermediate transfer medium, application of the dispersant collecting liquid on the intermediate transfer medium is started by the dispersant collecting liquid application unit.
摘要:
A liquid measuring device includes a floating member that is moved in accordance with a liquid surface, a first magnetic field generator that is disposed in the floating member and positions its north (N) pole to face a first direction, a second magnetic field generator that is disposed in the floating member to be spaced apart from the first magnetic field generator and positions its south (S) pole to face the first direction, and a plurality of proportional output-type hole elements that detect magnetic fields generated by the first magnetic field generator and the second magnetic field generator in positions facing the first direction.
摘要:
A liquid developer collecting system. A developing unit has a developing roller. A developing roller cleaning unit collects liquid developer on the developing roller. A concentration control unit stores liquid developer collected by the developing roller cleaning unit and controls the concentration of the liquid developer. A first feed unit feeds the liquid developer in the concentration control unit to the developing unit. A second feed unit feeds the liquid developer in the concentration control unit. A developer storage unit stores the liquid developer fed by the second feed unit.
摘要:
A liquid developer includes toner particles formed of a resin material and a coloring agent, and an insulation liquid in which the toner particles are dispersed, the insulation liquid containing ester-exchange oil obtained by an ester-exchange reaction of linseed oil and at least one of semidrying oil and nondrying oil. It is preferred that the insulation liquid further contains fatty acid monoester. Further, it is preferred that the amount of the fatty acid monoester contained in the insulation liquid is in the range of 5 to 50 wt %.
摘要:
An image formation apparatus includes a roller member that contacts a developer retaining member at a position and is distanced from the developer retaining member at another position. A contact edge of a cleaning blade supported by a supporting member is in contact with the roller member. A first plane of the cleaning blade that is supported by the supporting member, or is opposite to a surface that is supported by the supporting member, and a second plane of the cleaning blade form the contact edge. An angle θ1 formed by a virtual vertical plane and the second plane thereunder when the roller member is distanced from the developer retaining member is greater than zero degrees but not greater than ninety degrees.
摘要:
An image forming device includes a photoconductor drum having a rotational shaft in a first direction, and an exposure head having a plurality of imaging optical systems disposed in the first direction and a second direction and each having a negative optical magnification, and a light emitting element substrate on which a plurality of light emitting elements are disposed, the plurality of light emitting elements emitting light beams imaged on the photoconductor drum by one of the imaging optical systems, and the light beams are imaged by the imaging optical systems disposed in the second direction on the photoconductive drum at positions different from each other in the second direction.