A printing apparatus includes a cutter unit that includes a first blade that moves in a first direction from a standby position to a cutting position to cut a printing medium and a drive pin that moves integrally with the first blade, a drive cam which has a cylindrical shape and on a side surface of which a guide groove engaged with the drive pin is provided, and a driving motor that rotates the drive cam, in which, when the drive cam rotates, the guide groove guides, via the drive pin, the first blade in the first direction from the standby position to the cutting position.

According to one embodiment, an image processing device capable of removing a horizontal streak that may show when a document is scanned and made into a file is provided. An image processing device according to one embodiment includes: an image processing unit configured to generate smoothing image data obtained by applying smoothing to image data, and save, as an image file, non-smoothing image data in which smoothing is not applied to the image data when a difference between the non-smoothing image data and the smoothing image data is equal to or greater than a threshold value, and the smoothing image data when the difference is smaller than the threshold value; and a storage unit configured to save the image file.

An image forming apparatus includes an apparatus main body, an output tray, and a holding member. The output tray is rotatable about a first rotation shaft between a closed position and an open position. The holding member is rotatable about a second rotation shaft. The output tray comes into contact with the holding member halfway through rotation of the output tray from the closed to the open position. When the output tray is rotated to the open position, the holding member rotates to a retracted position while being in contact with the output tray. When viewed in a direction crossing a recording-material discharge direction, the first rotation shaft is located downstream from the second rotation shaft in the discharge direction, and a center of gravity of the holding member is located downstream from the second rotation shaft in the discharge direction when the holding member is at the retracted position.

The present invention provides an image forming apparatus including: a first moving member pressed and moved by an openable/closable member when the openable/closable member is opened, and switching a cartridge from a state where the cartridge is positioned in an image forming position to a state where the positioning is released; and a second moving member pressed and moved by the openable/closable member when the openable/closable member is opened, and moving the exposure member from an exposure position to a retracted position, wherein when the positioning of the cartridge is released, a reaction force applied from the first moving member to the openable/closable member reaches a first peak, when the exposure member is moved to the retracted position, a reaction force applied from the second moving member to the openable/closable member reaches a second peak, and timing of the first peak is different from timing of the second peak.

The present invention provides an image forming apparatus including: a first moving member pressed and moved by an openable/closable member when the openable/closable member is opened, and switching a cartridge from a state where the cartridge is positioned in an image forming position to a state where the positioning is released; and a second moving member pressed and moved by the openable/closable member when the openable/closable member is opened, and moving the exposure member from an exposure position to a retracted position, wherein when the positioning of the cartridge is released, a reaction force applied from the first moving member to the openable/closable member reaches a first peak, when the exposure member is moved to the retracted position, a reaction force applied from the second moving member to the openable/closable member reaches a second peak, and timing of the first peak is different from timing of the second peak.

A sheet feeding device includes a sheet loading table on which a bundle of sheets is stacked, an identification mark on an end face of the sheet loading table, and an imaging unit to identify the identification mark.

An image forming apparatus includes a cartridge provided with a memory. The apparatus main body includes a frame, a movable electric contact unit including an electric contact portion contacting with the memory, and a holding member holding the electric contact portion and including an urging member urging the electric contact unit toward the memory in a mounted state of the cartridge, and a positioning portion positioning the electric contact unit in an unmounted state of the cartridge.

An example paper feed device includes a tray to feed printing paper, a magnetic force generation element to generate a magnetic flux, a 3D magnetic sensor to detect changes in the a density of the magnetic flux generated by the magnetic force generation element in each of three axes, and a controller. The tray has a movable element that is movable in relation to the printing paper. Either the magnetic force generation element or the 3D magnetic sensor is attached to the movable element. The controller determines the position of the movable element based on a detection signal received from the 3D magnetic sensor.

A method for reducing artifacts in an electrophotographic printing system includes receiving a print job including image data for a set of pages. The electrophotographic printing system is used to print a block of pages from the print job to provide corresponding printed pages. The image data for the block of pages is analyzed to determine an average toner usage rate. If the determined average toner usage rate for the block of pages falls outside an acceptable toner usage rate range, image data for a compensation image and a number of compensation images are determined such that the average toner usage rate will be brought back into the acceptable toner usage rate range.

An image forming apparatus includes a developing container to store developer, an operation portion, an operation detection portion, a conveyance unit to convey a recording material, a detection unit, a door that is openable and closable, a door detection portion, an agitation member, a drive portion, and a control unit. The control unit controls the drive portion in such a manner that, in a case where the operation detection portion detects movement of the operation portion, a supply agitation operation in which the agitation member agitates the developer stored in the developing container is performed. The control unit controls the drive portion in such a manner that, in a case where, in a state in which the supply agitation operation is being performed, the door detection portion has detected an opened state of the door or the detection unit has detected the recording material, the supply agitation operation is stopped.