摘要:
An image forming apparatus, in which an image forming method is performed, includes an image carrier, an optical writing unit, a developing unit developing a toner image including an output image and a forcible toner consumption image, a transfer unit including an endless moving member to transfer the toner image onto the endless moving member directly or a recording medium carried on the endless moving member, a first remover to remove residual toner from the image carrier after transfer, a toner recycling unit to convey the residual toner to the developing unit, a controller to form the forcible toner consumption image and transfer the forcible toner consumption image onto the surface of the endless moving member, and a second remover to remove the forcible toner consumption image from the endless moving member.
摘要:
An image forming apparatus in which respective color visible images on tandem-arrayed plural photoconductor drums are sequentially overlay-transferred onto an intermediate transfer belt by application of a primary transfer voltage by intermediate transfer rollers, then the images are transferred at a time from the belt onto a print sheet by application of a secondary transfer voltage by a paper transfer roller. The same primary transfer voltage is applied to the respective color intermediate transfer rollers from one power source. In the intermediate transfer belt, a relative dielectric constant, a surface resistance and a volume resistance are controlled such that potential charged by initial transfer is attenuated to ⅓ or lower than the transfer voltage before a belt position of the initial transfer arrives at a next transfer position.
摘要:
It is an exemplified object of the present invention to provide a development device, development roller and blade used in the development device, and development roller and image-forming device having the development roller and blade, which can form a high-quality image in a cost-efficient manner. To achieve this object, the inventive development roller includes a shaft, a base material that coats a periphery of the shaft, and is made of a resistance body, and a layered coating provided on a periphery of the base material, where the layered coating includes two or more layers, a coating layer provided inside an outermost coating layer has a higher charging capability to a developing agent than at least the outermost coating layer.
摘要:
A control unit controls a device that executes an image forming process, compares changes of each toner adhesion amount in an image-density-detection pattern image when a developing-bias control condition is changed, with respect to a toner adhesion amount in an image-density-detection pattern image in a normal status, performs a malfunction-occurrence prediction process according to the degree of each change of the densities, and displays the result.
摘要:
The RF tag recycling system for recycling RF tags containing information on goods to which the RF tags are attached includes data storage mediums which are portable by consumers and issued by stores affiliated with the system, at least one RF tag collecting apparatus configured to calculate, when one of the data storage mediums is inserted into the RF collecting apparatus, a reward point value for RF tags put in the RF collecting apparatus, and to update the one of the data storage mediums on the basis of the calculated reward point value. The RF tag recycling system further includes a data processing apparatus configured to accumulate the calculated reward point value received from the RF tag collecting apparatus and to notify one of the stores which is an issuer of the one of the data storage mediums of information on an accumulated reward point value.
摘要:
It is an exemplified object of the present invention to provide a developer, a development device and its elements, and an image-forming device that can more stably form a high-quality image by a relatively inexpensive and easy means. A noncontact-type development method according to the present invention utilizes a nonmagnetic and single component toner having a volume average particle diameter D (&mgr;m) and an average specific charge q/m (&mgr;C/g), a development roller having a ten-point average surface roughness Rz (&mgr;m), and a blade keeping in contact with the development roller at a blade line pressure Pb (gf/cm). In order to stably form a uniform toner layer dt (&mgr;m) on the development roller, the following relationship is to be met: dt=1.8×{q/m×Rz/(Pb−1)}½×D±0.25 D, and 1.5 D≦dt≦3.5 D.
摘要:
A charge amount controlling roller serving as a charge amount controlling member is placed to face to a developing roller and is disposed on an upstream side, in a rotation direction of the developing roller, of a developing position at which a photosensitive drum and the developing roller face to each other. The charge amount controlling roller is biased with a voltage having the same polarity as that of non-latent-image portions on the photosensitive drum with respect to the developing roller, thereby reducing extraordinarily charged developing agents, or high charged, low charged, reverse charged toners otherwise causing image defects such as fogs.
摘要:
A liquid developing head is arranged to confront a surface of an image bearing member via a developing gap and a squeeze gap and carries out a developing by use of a developing liquid. The liquid developing head includes a housing, a developing roller, supported by the housing, supplying the developing liquid to the developing gap by rotating so that a portion of the developing roller confronting the image bearing member moves in a direction which is the same as a moving direction of the surface of the image bearing member, a squeeze roller, supported by the housing and arranged on a downstream side of the developing roller in the moving direction of the surface of the image bearing member, removing a surplus developing liquid adhered on the surface of the image bearing member at the squeeze gap by rotating so that a portion of the squeeze roller confronting the image bearing member moves in a direction opposite to the moving direction of the surface of the image bearing member, a developing liquid supply path, formed within the housing and having an ejection hole located at a portion on an upstream side of the developing gap in the moving direction of the surface of the image bearing member, supplied with the developing liquid from outside, and a developing liquid recovery path, formed within the housing, forcibly recovering the surplus developing liquid in response to a suction force applied from the outside.
摘要:
Disclosed herein are an information code and an information code reader. In information code, a plurality of light-colored modules exhibiting the reflective characteristics of light color when light of a second wavelength band different from light of a first wavelength band is radiated and a plurality of dark-colored modules exhibiting the reflective characteristics of dark color when the light of a second wavelength band is radiated are arranged in a code region. The information code includes a masked portion disposed in a predetermined region of the code region in which light is intercepted and prevents the corresponding information code from being read, and configured to, when the light of a second wavelength band is radiated, allow light reflected from the modules of the corresponding code region to pass therethrough and thereby interrupt the light of a first wavelength band.
摘要:
A control unit controls a device that executes an image forming process, compares changes of each toner adhesion amount in an image-density-detection pattern image when a developing-bias control condition is changed, with respect to a toner adhesion amount in an image-density-detection pattern image in a normal status, performs a malfunction-occurrence prediction process according to the degree of each change of the densities, and displays the result.