摘要:
A cleaning blade failure prediction processor for an image forming apparatus includes a pixel count acquisition circuit to acquire pixel count data of a cleaning target of a cleaning blade. The cleaning target is divided into a plurality of areas in a main scanning direction of the cleaning target. The pixel count acquisition circuit acquires a pixel count for each of the plurality of areas of the cleaning target. The cleaning blade failure prediction processor also includes a first cumulative pixel count calculation circuit to calculate a cumulative pixel count for each of the plurality of areas of the cleaning target, a second cumulative pixel count calculation circuit to calculate a cumulative pixel count per distance traveled of the cleaning target, and a deformation identification circuit to determine whether or not the cleaning blade shows signs of deformation according to the cumulative pixel count per distance traveled.
摘要:
A cleaning blade failure prediction processor for an image forming apparatus includes a pixel count acquisition circuit to acquire pixel count data of a cleaning target of a cleaning blade. The cleaning target is divided into a plurality of areas in a main scanning direction of the cleaning target. The pixel count acquisition circuit acquires a pixel count for each of the plurality of areas of the cleaning target. The cleaning blade failure prediction processor also includes a first cumulative pixel count calculation circuit to calculate a cumulative pixel count for each of the plurality of areas of the cleaning target, a second cumulative pixel count calculation circuit to calculate a cumulative pixel count per distance traveled of the cleaning target, and a deformation identification circuit to determine whether or not the cleaning blade shows signs of deformation according to the cumulative pixel count per distance traveled.
摘要:
An image forming apparatus includes a deterioration determining device to determine a deterioration degree of a latent image bearer based on a potential detected by a surface potential detector. The deterioration determining device calculates a relative value indicating the deterioration degree based on the aggregated number of pixels and a time value for each of virtually divided regions. The deterioration determining device determines a deterioration degree of a detecting target region of the virtually divided region based on a potential detected by the surface potential detector. The deterioration determining device further determines deterioration degrees of non-detecting target respective regions of the virtually divided regions based on the relative values of the non-detecting target respective regions, the relative value of the detecting target region, and the deterioration degree of the detecting target region.
摘要:
A device failure predictor includes data acquisition unit to acquire internal data of a target device, a peak value calculator to calculate a plurality of peak values of the internal data for a prescribed period of time, and a failure sign identification unit to set individual criteria for the plurality of peak values and determine whether or not the target device shows signs of failure according to the plurality of peak values and the individual criteria.
摘要:
A device failure predictor includes data acquisition unit to acquire internal data of a target device, a peak value calculator to calculate a plurality of peak values of the internal data for a prescribed period of time, and a failure sign identification unit to set individual criteria for the plurality of peak values and determine whether or not the target device shows signs of failure according to the plurality of peak values and the individual criteria.
摘要:
An image forming apparatus includes an image forming unit including a latent image carrier, a charging device, a latent image writing device, and a development device; a cumulative value calculation device that calculates, for each of regions of a surface of the image carrier, a cumulative value of the area of a latent image formed in the region; a surface potential detector that detects the surface potential of the image carrier in one of the regions as a detection region; and a determination device that determines the deterioration degree of the detection region on the basis of the detected potential, and determines the deterioration degree of a region other than the detection region on the basis of the detected potential, the cumulative value for the detection region, and the cumulative value for the region other than the detection region.
摘要:
A management apparatus communicates, via a communication network, with image forming apparatuses, and includes an information reception device that receives, from each of the image forming apparatuses via the network, prediction-use information useful for predicting a latent image carrier surface contamination level due to discharge products generated during charging, a contamination level prediction device that, on the basis of the received prediction-use information, predicts the latent image carrier surface contamination level of the image forming apparatus corresponding to the prediction-use information, and an instruction transmission device that, if the predicted latent image carrier surface contamination level exceeds a predetermined allowable range, transmits an execution instruction to execute a contamination reduction operation of reducing the contamination of the surface of the latent image carrier due to the discharge products to the image forming apparatus corresponding to the latent image carrier surface contamination level via the network.
摘要:
An image forming system includes an image forming apparatus, a physical property detector, a data storage device, and a latent image carrier replacement time detector. The image forming apparatus includes a replaceable latent image carrier, forms a latent image on a surface of the latent image carrier, develops the latent image into a visible image, and transfers the visible image onto a recording medium. The physical property detector detects predetermined physical properties of the image forming apparatus in a continuous manner or an intermittent manner. The data storage device stores, as a specific physical property, data on at least one of the detected physical properties, which changes before and after replacement of the latent image carrier. The latent image carrier replacement time detector detects, on the basis of changes over time of the stored specific physical property, a latent image carrier replacement time.
摘要:
A rotation measuring mechanism capable of measuring a rotation amount and a displacement amount of a rotary member in a direction perpendicular to the rotation axis is provided. An exemplary combination of the rotation measuring mechanism includes a detection target rotating in synchrony with the rotary member and range sensors. Each time the detection target rotates once, each sensor outputs one cycle of a sine wave. The amplitude of the sine wave output from the sensor varies in accordance with the displacement of the detection target together with the rotary member in the direction perpendicular to the axis, thereby obtaining the rotation amount and the displacement amount of the rotary member.
摘要:
A first feature quantity computing unit that computes a first feature quantity representing an average of a plurality of driving loads recorded by a driving load of a fixing section recording unit of an image forming device that records the driving load acquired by a driving load acquiring unit that acquires the driving load, a second feature quantity computing unit that computes a second feature quantity representing a deviation of the plurality of the driving loads, and a diagnosis unit that performs failure diagnosis including estimation of a cause of a failure of the fixing section using the first feature quantity and the second feature quantity are used.