22results about "Visual representation by electrographic printing" patented technology

An image forming apparatus includes a photosensitive drum, a charging member, a developing member, a transfer member, first and second gears, a drive source, and a control unit. The charging member contacts the photosensitive drum and forms a charging portion to charge a surface of the photosensitive drum. The control unit performs control in such a manner that an image forming operation of performing image formation by rotating the photosensitive drum at a first rotational speed is executable. Where the control unit executes the image forming operation, the control unit performs a switch operation of stopping the photosensitive drum in a state in which the photosensitive drum is driven, while a non-image forming operation to be executed after the image forming operation is executed, and rotationally driving the photosensitive drum again at a second rotational speed faster than the first rotational speed, a plurality of times.

The present invention aims to provide a method for reducing toner consumption in accordance with the attention level estimated by machine learning of an area in image data. [Solution] The image forming device of the present invention is characterized by having an acquisition means for acquiring an attention level estimated by machine learning for an area in an image based on image data, an execution means for performing image processing on the image data based on the estimated attention level so that the amount of recording material used to draw the area in the image with low attention level is less than the amount of recording material used to draw the area in the image with high attention level, and a printing means for printing on a printing medium based on the image data on which the image processing has been performed.

The purpose is to improve the gradation when reading images formed on paper containing a fluorescent whitening agent. [Solution] The image processing apparatus comprises: a generation means for generating image data by converting reflected light from an original document having an image using a yellow colorant into density; a identification means for identifying a fluorescent region based on a first image data corresponding to the B channel among the generated image data; and a correction means for correcting the first image data in the fluorescent region using a second image data corresponding to the G channel or R channel among the generated image data.

An image processing apparatus includes a generating part, a specifying part and a correcting part. The generating part is configured to generate image data obtained by converting a reflected light from a document having an image of yellow colorant into a density. The specifying part is configured to specify a fluorescent region based on a first image data corresponding to a B channel among the generated image data. The correcting part is configured to correct the first image data in the fluorescent region using a second image data corresponding to a G channel or R channel among the generated image data.

An updating apparatus that updates information stored in a storage device provided in a replacement unit of a predetermined apparatus includes: a control unit configured to, when initialization processing is started, read out usage information stored in a first region of the storage device and indicating a usage state of the replacement unit, perform backup processing of storing backup information based on the usage information in a target region within one or more second regions different from the first region, and perform update processing of updating the usage information stored in the first region to a first default value.

To allow for appropriately adjusting color tone of images according to the capacity of a toner container.SOLUTION: An image forming device provided herein is configured to acquire information indicative of the capacity of a toner container, determine a gamma table for correcting brightness of an image to be printed according to the acquired information, and correct the brightness of the image using the determined gamma table.SELECTED DRAWING: Figure 7

To reduce the burden of a customer engineer for grasping image quality defects at the time of image diagnosis.SOLUTION: The image diagnosis system includes one or more processors, and the one or more processors acquire an image for image diagnosis formed by an image forming apparatus to be diagnosed, detect an image quality defect in the image from the image for image diagnosis, and switch highlighting of an occurrence position of the detected image quality defect according to an event.SELECTED DRAWING: Figure 1

To provide a sheet discharger allowing for suppressing the occurrence of poor stacking resulting from a curl of a sheet.SOLUTION: A sheet discharger comprises discharge means (161) that has a nip portion clamping a sheet and discharges the sheet through the nip portion, a sheet-support part (170) that supports the sheet discharged by the discharge means, and guide means (200) provided to face an upper surface of the sheet delivered from the nip portion. The guide means has a regulation part (201a) that regulates a rear end of the sheet in a sheet discharge direction from moving in a manner of moving upward from an extension line (N) of the nip portion after passed through the nip portion.SELECTED DRAWING: Figure 5

The invention discloses an image diagnosis system and an image diagnosis method, the image diagnosis system comprises one or a plurality of processors, and the one or the plurality of processors are used for acquiring an image used for image diagnosis and formed by an image forming device as a diagnosis object. An image quality defect existing in the image for image diagnosis is detected from the image for image diagnosis, and emphasis display of the occurrence position of the detected image quality defect is switched according to an event.

An image diagnosis system includes one or more processors configured to: acquire an image for image diagnosis formed by an image forming apparatus serving as a diagnosis target; detect, from the image for image diagnosis, an image-quality defect in the image for image diagnosis; and perform switching of highlighting of an occurrence location of the detected image-quality defect, the switching being performed on a basis of an event.

An image forming device includes an image carrier, an image former including a charging member, a rotation driver that rotationally drives the image carrier, a date and time acquirer that acquires a date and time, a receiver that receives predetermined input information, which is an operation and / or a state of predetermined processing or is data, a controller, and a storage. When a determination processor determines that an input detection date and time is a date and time on or after a next rotation date and time, the controller performs predetermined distance rotation control of driving the rotation driver to rotate the image carrier by a predetermined movement distance and then stopping the image carrier.

An image forming apparatus includes: an image forming unit configured to form an image on a sheet based on an image forming condition; an image carrier; a sensor configured to measure a measurement image on the image carrier; a prediction unit configured to predict a density of an image to be formed; a detector configured to detect an environmental condition; and a controller. The controller is configured to: control whether to execute first calibration, in which the measurement image is not formed and the image forming condition is controlled based on the density predicted by the prediction unit, based on the environmental condition detected by the detector; and execute second calibration, in which the image forming condition is controlled based on a measurement result of the measurement image measured by the sensor.

The invention relates to an image forming apparatus and an image processing method. The image forming apparatus includes a printer, at least one memory for storing a program; and at least one processor configured, when executing the program, to: acquire a degree of attention in a region of an image based on image data, the degree of attention being estimated by machine learning; performing image processing on the image data based on the estimated attention such that an amount of recording material used to draw a low-attention region in the image is less than an amount of recording material used to draw a high-attention region in the image; and causing the printer to print the image on a print medium based on the image data subjected to the image processing.

A light scanning apparatus satisfies the following conditions: 0.60≤(dYmax− / dθ) / (dY0 / dθ)≤0.98; and 0.50<Sk / ft<1.00, where, when a deflecting unit rotates at a constant angular velocity, θ represents a scanning angle between a principal ray of a light flux immediately after deflected by the deflecting unit and an optical axis of an imaging optical system, Y0 represents an on-axis image height, Ymax− represents a first outermost off-axis image height on a side opposite to a light source with respect to the optical axis of the imaging optical system in a main scanning cross section, ft represents a focal distance of the imaging optical system in the main scanning cross section, and Sk represents a distance between a rear-side principal plane of the imaging optical system and a scanned surface on an optical path of a principal ray of the light flux that travels to the on-axis image height.

An image diagnosis system includes one or more processors configured to: acquire an image for image diagnosis formed by an image forming apparatus serving as a diagnosis target; detect, from the image for image diagnosis, an image-quality defect in the image for image diagnosis; and perform switching of highlighting of an occurrence location of the detected image-quality defect, the switching being performed on a basis of an event.

An image forming apparatus includes a printer, at least one memory storing a program, and at least one processor that, upon execution of the program is configured to acquire an attention level in an area of an image based on image data, the attention level being estimated through machine learning, perform image processing on the image data based on the estimated attention level so that an amount of recording material to be used to draw an area with a low attention level in the image is less than an amount of recording material to be used to draw an area with a high attention level in the image, and cause the printer to print the image on a printing medium based on the image data having been subjected to the image processing.

To provide a technique to prevent a reduction in the accuracy of calibration.SOLUTION: An image forming apparatus comprises: image forming means that performs image formation on a sheet; prediction means that uses values of a plurality of parameters to predict the density of an image formed by the image forming means according to a prediction model; and control means that, based on the density of the image predicted by the prediction means, controls execution of prediction calibration of generating first density control information for controlling the density of the image. The control means determines, at a determination timing, whether to execute the prediction calibration based on whether each of determination values of one or more parameters to be determined in the plurality of parameters is within an allowable range set to each of the one or more parameters to be determined.SELECTED DRAWING: Figure 8

An updating apparatus that updates information stored in a storage device provided in a replacement unit of a predetermined apparatus includes: a control unit configured to, when initialization processing is started, read out usage information stored in a first region of the storage device and indicating a usage state of the replacement unit, perform backup processing of storing backup information based on the usage information in a target region within one or more second regions different from the first region, and perform update processing of updating the usage information stored in the first region to a first default value.

An image forming device includes an image carrier, an image former including a charging member, a rotation driver that rotationally drives the image carrier, a date and time acquirer that acquires a date and time, a receiver that receives predetermined input information, which is an operation and / or a state of predetermined processing or is data, a controller, and a storage. When a determination processor determines that an input detection date and time is a date and time on or after a next rotation date and time, the controller performs predetermined distance rotation control of driving the rotation driver to rotate the image carrier by a predetermined movement distance and then stopping the image carrier.

An image forming apparatus comprising: a printer unit configured to print on a sheet; a motor configured to drive a part of the printer unit; a touch panel configured to display and configured to receive an operation from a user; a human sensor configured to sense a human without contacting the human; and a controller configured to: in response to the human sensor sensing the human, change a state of the touch panel from a first state to a second state without driving the motor; in response to the touch panel receiving a predetermined operation from the user thereon in a state where (a) the touch panel continues to display since the state of the touch panel has been changed to the second state in response to the human sensed and (b) the motor has not been driven, drive the motor without causing the printer unit to print on the sheet; and based on an operation to start printing received from the user in a state where the motor has been driven in response to the predetermined operation received, cause the printer unit to print on the sheet.