Abstract: An image forming apparatus includes an image forming section, a sensor and a control section. The image forming section forms a first image with at least two kinds of developing agents with different fixation properties. The sensor detects the first image formed on an image formed section by the image forming section. The control section amends deviation of the first image on the image formed section by the image forming section when a detection result of the sensor that the first image formed by the image forming section is not formed at a predetermined position of the image formed section.

Abstract: According to one embodiment, there is provided an image forming apparatus including a fixing portion, an exterior member, a first ventilation guide, a second ventilation guide, and a blowing portion. The exterior member has a first opening portion opened to an outside. The first ventilation guide is disposed between the fixing portion and the exterior member. The first ventilation guide forms a first space communicating with the first opening portion between the first ventilation guide and the exterior member. The second ventilation guide is disposed between the fixing portion and the first ventilation guide, and has a second opening portion. The second ventilation guide forms a second space communicating with the second opening portion between the second ventilation guide and the first ventilation guide.

Abstract: According to an embodiment, an image erasing apparatus includes a reading unit, an erasing unit, an image forming unit, and a controller. The reading unit reads identification information formed on a sheet conveyed. The erasing unit erases a part or all of a first image formed on the sheet after the identification information is read. The controller obtains image data corresponding to the identification information that is read by the reading unit. The controller controls the image forming unit so as to form a second image, which is indicated by the obtained image data, onto the sheet from which the first image has been erased.

Abstract: According to one embodiment, a display device includes a detecting section configured to detect information concerning a sheet, a control section configured to set image guidance according to a result of the detection by the detecting section, and a display section configured to display the image guidance set by the control section.

Abstract: According to one embodiment, a display device includes a detecting section configured to detect information concerning a sheet, a control section configured to set image guidance according to a result of the detection by the detecting section, and a display section configured to display the image guidance set by the control section.

Abstract: To provide an image forming apparatus that can highly accurately position and convey, even if an inter-sheet distance of sheets to be conveyed is reduced, the sheets from registration rollers to a transfer position when a toner image on an image bearing member moving at process speed is transferred onto the sheet in the transfer position. A sheet fed from a paper feeding cassette by a pulse-motor driven paper feeding roller is conveyed to pulse-motor driven registration rollers by pulse-motor driven conveying rollers. When the sheet is conveyed to the transfer position according to restart of the registration rollers, the sheet is conveyed by the registration rollers at sheet conveying speed different from the process speed before the leading end of the sheet reaches the transfer position and is conveyed at the process speed after that.

Abstract: A paper feeding cassette includes: a cassette case configured to store sheets; a sheet tray on which the sheets are stacked, the sheet tray being rotatably attached to the cassette case; a push-up member configured to push up the sheet tray and rotate the sheet tray in one direction when driving force is input and release the push-up of the sheet tray to allow rotation of the sheet tray in the other direction when the input of the driving force is interrupted; and a buffer member configured to be nipped by the cassette case and the sheet tray and elastically deformed when the sheet tray rotates in the other direction. The buffer member is located, when viewed from a stacking direction of the sheets, in an area closer to a rotation axis of the sheet tray than a distal end of the sheet tray that is most distant from the rotation axis in the sheet tray.

Abstract: An interlock switch is switched according to the movement of a relay reversal unit rather than the movement of a front cover. The relay reversal unit is connected to a driver substrate by a drawer connector. The change-over of the interlock switch according to the movement of the relay reversal unit is turned off when margin time elapses after a cover detection switch is turned off.

Abstract: An intra discharge type image forming apparatus that uses an ADU to form an image onto both sides of a sheet and discharges the sheet on which an image has been formed to the vicinity of the center of the apparatus has: a sheet type information acquisition section 101 that acquires information concerning a bending rigidity of a sheet to be subjected to double-sided printing in the image forming apparatus as sheet type information; and a feed controller 102 that controls a sheet feed speed in a switchback feed section for sheet switchback feed and ADU based on the sheet type information acquired by the sheet type information acquisition section such that the higher the bending rigidity of a sheet, the lower the sheet feed speed.

Abstract: According to one embodiment, an image forming apparatus includes a paper feeding section, a conveying section, an image forming section, and a display section. The paper feeding section feeds a set sheet. The conveying section conveys the sheet fed from the paper feeding section. The image forming section forms an image on the sheet conveyed by the conveying section. The display section displays sheet set guidance corresponding to a type of the sheet set in the paper feeding section.

Abstract: To provide an image forming apparatus that can highly accurately position and convey, even if an inter-sheet distance of sheets to be conveyed is reduced, the sheets from registration rollers to a transfer position when a toner image on an image bearing member moving at process speed is transferred onto the sheet in the transfer position. A sheet fed from a paper feeding cassette by a pulse-motor driven paper feeding roller is conveyed to pulse-motor driven registration rollers by pulse-motor driven conveying rollers. When the sheet is conveyed to the transfer position according to restart of the registration rollers, the sheet is conveyed by the registration rollers at sheet conveying speed different from the process speed before the leading end of the sheet reaches the transfer position and is conveyed at the process speed after that.

Abstract: To provide an image forming apparatus that can highly accurately position and convey, even if an inter-sheet distance of sheets to be conveyed is reduced, the sheets from registration rollers to a transfer position when a toner image on an image bearing member moving at process speed is transferred onto the sheet in the transfer position. A sheet fed from a paper feeding cassette by a pulse-motor driven paper feeding roller is conveyed to pulse-motor driven registration rollers by pulse-motor driven conveying rollers. When the sheet is conveyed to the transfer position according to restart of the registration rollers, the sheet is conveyed by the registration rollers at sheet conveying speed different from the process speed before the leading end of the sheet reaches the transfer position and is conveyed at the process speed after that.

Abstract: A paper feeding cassette includes: a cassette case configured to store sheets; a sheet tray on which the sheets are stacked, the sheet tray being rotatably attached to the cassette case; a push-up member configured to push up the sheet tray and rotate the sheet tray in one direction when driving force is input and release the push-up of the sheet tray to allow rotation of the sheet tray in the other direction when the input of the driving force is interrupted; and a buffer member configured to be nipped by the cassette case and the sheet tray and elastically deformed when the sheet tray rotates in the other direction. The buffer member is located, when viewed from a stacking direction of the sheets, in an area closer to a rotation axis of the sheet tray than a distal end of the sheet tray that is most distant from the rotation axis in the sheet tray.

Abstract: A paper feeding cassette includes: a cassette case configured to store sheets; a sheet tray on which the sheets are stacked, the sheet tray being rotatably attached to the cassette case; a push-up member configured to push up the sheet tray and rotate the sheet tray in one direction when driving force is input and release the push-up of the sheet tray to allow rotation of the sheet tray in the other direction when the input of the driving force is interrupted; and a buffer member configured to be nipped by the cassette case and the sheet tray and elastically deformed when the sheet tray rotates in the other direction. The buffer member is located, when viewed from a stacking direction of the sheets, in an area closer to a rotation axis of the sheet tray than a distal end of the sheet tray that is most distant from the rotation axis in the sheet tray.

Abstract: A technique in an image forming apparatus in which the front and back sides of a sheet are reversed by using a reversal conveyance path is provided for causing the sheet to wait such that the sheet is not damaged when a unit for conveying the sheet to the reversal conveyance path is pulled out for the purpose of clearing a jam or the like. A roller for conveying the sheet is controlled such that the sheet to be turned back and directed into the reversal conveyance path is caused to wait until the sheet can be conveyed into the reversal conveyance path. As a standby position of the sheet while the sheet is caused to wait, a position is set such that an upstream end portion in the second conveying direction of the sheet to be directed into the reversal conveyance path does not extend for a predetermined length or longer into another conveyance unit adjacent to the intermediate conveyance unit upstream from the intermediate conveyance unit in the second conveying direction.

Abstract: A paper feeding cassette includes: a cassette case configured to store sheets; a sheet tray on which the sheets are stacked, the sheet tray being rotatably attached to the cassette case; a push-up member configured to push up the sheet tray and rotate the sheet tray in one direction when driving force is input and release the push-up of the sheet tray to allow rotation of the sheet tray in the other direction when the input of the driving force is interrupted; and a buffer member configured to be nipped by the cassette case and the sheet tray and elastically deformed when the sheet tray rotates in the other direction. The buffer member is located, when viewed from a stacking direction of the sheets, in an area closer to a rotation axis of the sheet tray than a distal end of the sheet tray that is most distant from the rotation axis in the sheet tray.

Abstract: In an image transferring apparatus of the invention, a relay unit, which is provided in a main body frame and includes a conveyance switching mechanism to eject a sheet on which an image is fixed by a fixing section to a sheet ejection section or to switch back the sheet in the middle of ejection, can be pulled out, and a automatic duplex unit to guide the switched back sheet to an image forming section is mounted to the main body frame to be capable of being detached. An intermediate unit to guide the sheet switched back by the relay unit, together with the fixing section, is fixed and placed in the main body frame. The intermediate unit is provided with a guide member to be capable of being opened and closed between a guide position for the switched back sheet and an open position opposite to the guide position.

Abstract: Provided is an image forming apparatus including: a first sensor which is provided on a transportation path of a sheet and detects a first passage time of the sheet; a second sensor which is provided at a position different from the position of the first sensor in a transportation direction of the sheet and a direction perpendicular to the transportation direction and detects a second passage time of the sheet; a skew determination unit which determines a skew amount of the sheet based on the first passage time detected by the first sensor and the second passage time detected by the second sensor; and a correction control unit which controls correction of a skew of the sheet on the basis of the skew amount determined by the skew determination unit.

Abstract: A technique in an image forming apparatus in which the front and back sides of a sheet are reversed by using a reversal conveyance path is provided for causing the sheet to wait such that the sheet is not damaged when a unit for conveying the sheet to the reversal conveyance path is pulled out for the purpose of clearing a jam or the like. A roller for conveying the sheet is controlled such that the sheet to be turned back and directed into the reversal conveyance path is caused to wait until the sheet can be conveyed into the reversal conveyance path. As a standby position of the sheet while the sheet is caused to wait, a position is set such that an upstream end portion in the second conveying direction of the sheet to be directed into the reversal conveyance path does not extend for a predetermined length or longer into another conveyance unit adjacent to the intermediate conveyance unit upstream from the intermediate conveyance unit in the second conveying direction.

Abstract: In an image transferring apparatus of the invention, a relay unit, which is provided in a main body frame and includes a conveyance switching mechanism to eject a sheet on which an image is fixed by a fixing section to a sheet ejection section or to switch back the sheet in the middle of ejection, can be pulled out, and a automatic duplex unit to guide the switched back sheet to an image forming section is mounted to the main body frame to be capable of being detached. An intermediate unit to guide the sheet switched back by the relay unit, together with the fixing section, is fixed and placed in the main body frame. The intermediate unit is provided with a guide member to be capable of being opened and closed between a guide position for the switched back sheet and an open position opposite to the guide position.