Abstract:
An image forming apparatus includes: an image forming portion that includes a developing portion configured to supply toner to an image bearing member bearing an electrostatic latent image formed thereon to develop the electrostatic latent image as a toner image, and is configured to form a toner image on a long paper sheet; a notification portion configured to notify a user about information; and a control portion configured to calculate, in accordance with coverage of a toner image that is a target of image formation, a toner image formation distance with which successive image formation is possible without forcibly discharging degraded toner from the developing portion, and to control the notification portion to notify the calculated toner image formation distance as a first toner image formation distance.
Abstract:
A system and method to compensate for ghost appearances on a print due to a previous job, the method comprising defining areas in which ghosting is expected or detected and recording the image on a photoreceptor by selectively changing the parameters of the system as a function of position, to compensate for the effects of ghosting in ex-image and ex-nonimage areas.
Abstract:
An image forming apparatus includes a rotating fixing unit, a switching unit, and a control unit. The rotating fixing unit has a surface, the surface fixing a toner image on a recording medium by contacting the recording medium. The switching unit switches between transportation directions in which the recording sheet is transported such that an orientation of a predetermined side of the recording medium with respect to the fixing unit matches either an orientation corresponding to a first direction in which the central axis of the fixing unit extends or an orientation corresponding to a second direction that is perpendicular to the first direction. The control unit controls the switching unit such that the recording medium is transported in a direction corresponding to a smaller one of integration values obtained along the first direction and the second direction.
Abstract:
A memory section 1013, an image forming section 150, a control section 101, and a density detecting section 220 to detect a density of an image are disposed. when performing density adjustment by forming a density patch on a sheet with the image forming section, receiving the density detection result of the density patch, and adjusting the image forming section based on the density detection result such that a highest density with the toner coincides with a target density, a target density-compliant sheet profile which is a sheet profile including sheet setting for a sheet used at the time of determining the target density and the target density are memorized in the memory section; and the image forming section is adjusted based on the target density-compliant sheet profile and the target density such that the highest density coincides with the target density.
Abstract:
An image forming apparatus having an image carrier; an electrostatic latent image forming device that forms an electrostatic latent image on the image carrier; a development device having a housing section that stores toner therein, a stirring device for stirring the toner inside the housing section, and a toner, carrier that develops the electrostatic latent image into a toner image by imparting the toner to the image carrier; a voltage applying device that applies a development bias voltage between the image carrier and the toner carrier; a control device that makes the electrostatic latent image forming device and the development device form a test toner image on the image carrier; and a sensing device that senses a toner adhering amount of the test toner image. The control device determines whether to make the stirring device stir the toner based upon a relation between the toner adhering amount of the test toner image and the development bias voltage that was applied by the voltage applying device for formation of the test toner image.
Abstract:
An image forming apparatus and an image forming method are provided which form high-quality fixed images having no fogs and the like defects, in which apparatus and method a toner entering a pressure-contact area between rollers is prevented from scattering. A control is performed on preheating conditions for preheating an unfixed toner image on a recording medium, which unfixed toner image indicates a toner image transferred but not yet fixed, and a control is further performed such that an amount of toner attached to the recording medium at a coverage rate of 100% is 0.4 mg/cm2 or less, with the result that the toner is prevented from scattering when the recording medium carrying the unfixed toner image passes through a pressure-contact area formed between a heating roller and a pressurizing roller in a fixing step.
Abstract translation:提供一种图像形成装置和图像形成方法,其形成没有雾和类似缺陷的高质量固定图像,其中防止进入辊之间的压力接触区域的调色剂飞散的装置和方法。 在预定条件下进行控制,用于对记录介质上的未定影调色剂图像进行预热,该未定影调色剂图像表示转印但未固定的调色剂图像,并进一步进行控制,使得附着到记录介质上的调色剂的量 100%的覆盖率为0.4mg / cm 2以下,结果,当携带未定影调色剂图像的记录介质通过加热辊和加压辊之间形成的压力接触区域时,防止调色剂飞散 固定步骤
Abstract:
An image forming apparatus has an image forming unit together with a fixing unit which uses two rotating members to form a nip in which the recording material with an unfixed image is fed. A driving unit drives the rotatable fixing members and a flywheel is used for increasing an inertial force of that drive, there also being a connecting device which selectively connects the flywheel with the driving unit together with a switching device that switches operation of that connecting device in accordance with the type of recording material being used or the density of the image to be printed.
Abstract:
An automatic duplex electrophotographic copying machine having a single side copying-related transport passage communicating from a paper supply section through a copying process section to a discharge outlet, a duplex copying-related transport passage located under the single side copying-related transport passage and communicating from the vicinity of the discharge outlet to the vicinity of the paper supply section, an intermediate tray provided in the approximate center of the duplex copying-related transport passage, and a plurality of bins mounted at the discharge outlet to store discharged copy papers, comprises a detector provided at the paper supplying side of the intermediate tray of the duplex copying-related transport passage to detect the picture image density on a copy paper; and a storage bin selection unit for delivering a defective copy paper to a particular bin among the plurality of bins when the detector does not detect any picture image on the copy paper while the copy paper is passing the position of the detector.
Abstract:
A method of operating a printing system includes determining whether ghosting is expected on a photoreceptor and applying power to a laser applied to the photoreceptor based on whether the ghosting is expected.
Abstract:
A memory section 1013, an image forming section 150, a control section 101, and a density detecting section 220 to detect a density of an image are disposed. when performing density adjustment by forming a density patch on a sheet with the image forming section, receiving the density detection result of the density patch, and adjusting the image forming section based on the density detection result such that a highest density with the toner coincides with a target density, a target density-compliant sheet profile which is a sheet profile including sheet setting for a sheet used at the time of determining the target density and the target density are memorized in the memory section; and the image forming section is adjusted based on the target density-compliant sheet profile and the target density such that the highest density coincides with the target density.