Abstract: An inkjet recording device includes: an inkjet head that includes a nozzle for discharging ink on a recording material, and forms an image by discharging the ink from the nozzle on the recording material based on image data; and a hardware processor that performs image processing of the image data, wherein the hardware processor calculates a difference in ink adhesion amount between a target region and an adjacent target region adjacent to the target region in the image data, determines whether the difference in the ink adhesion amount exceeds a threshold based on a calculation result of the hardware processor, and performs a responding process for occurrence of a wrinkle on the recording material based on a determination result of the hardware processor.

Abstract: An image forming apparatus includes an image carrier, a first peel-off unit whose end portion is in contact with the image carrier and that peels off a recording medium from the image carrier, and a second peel-off unit whose end portion is not in contact with the image carrier and that peels off a recording medium from the image carrier. The second peel-off unit is disposed in such a way that the end portion thereof is located at a position that is the same as or upstream of a position of the end portion of the first peel-off unit in a rotation direction of the image carrier, and the second peel-off unit is movable so that the end portion thereof moves away from the image carrier.

Abstract: An image forming apparatus includes: an image carrying unit that carries an image to be transferred to a sheet which is brought into contact with the image carrying unit and passed through; a separation unit that separates the sheet from the image carrying unit; and a removal unit that comes into contact with the image carrying unit, and removes toner remaining after the sheet passes through the separation unit. A non-transferred toner image that is not transferred to the sheet is formed in a range, where the separation unit is not present, of the image carrying unit.

Abstract: An image forming apparatus includes: an image carrying unit that carries an image to be transferred to a sheet which is brought into contact with the image carrying unit and passed through; a separation unit that separates the sheet from the image carrying unit; and a removal unit that comes into contact with the image carrying unit, and removes toner remaining after the sheet passes through the separation unit. A non-transferred toner image that is not transferred to the sheet is formed in a range, where the separation unit is not present, of the image carrying unit.

Abstract: A peeling device includes a peeling member and a cover member. The peeling member peels a recording medium, to which an unfixed developer has been transferred from an image holding member, from the image holding member. The leading end of the peeling member contacts the image holding member. The cover member covers a surface of the peeling member with a gap interposed between the peeling member and the cover member. The surface of the peeling member includes at least the leading end of the peeling member, and includes at least a surface of the peeling member on the side opposite to the image holding member.

Abstract: A peeling device includes a peeling member and a cover member. The peeling member peels a recording medium, to which an unfixed developer has been transferred from an image holding member, from the image holding member. The leading end of the peeling member contacts the image holding member. The cover member covers a surface of the peeling member with a gap interposed between the peeling member and the cover member. The surface of the peeling member includes at least the leading end of the peeling member, and includes at least a surface of the peeling member on the side opposite to the image holding member.

Abstract: An inkjet recording device includes: an inkjet head that includes a nozzle for discharging ink on a recording material, and forms an image by discharging the ink from the nozzle on the recording material based on image data; and a hardware processor that performs image processing of the image data, wherein the hardware processor calculates a difference in ink adhesion amount between a target region and an adjacent target region adjacent to the target region in the image data, determines whether the difference in the ink adhesion amount exceeds a threshold based on a calculation result of the hardware processor, and performs a responding process for occurrence of a wrinkle on the recording material based on a determination result of the hardware processor.

Abstract: An image forming apparatus includes: an image carrying unit that carries and rotates an unfixed image to be transferred to a recording medium; a first separating unit that separates the recording medium from the image carrying unit with a first leading end of the first separating unit, in contact with the image carrying unit; and a second separating unit that separates the recording medium from the image carrying unit with a second leading end of the second separating unit, not in contact with the image carrying unit. The second separating unit is disposed so that the first leading end is at a same position as the first leading end of the first separating unit or at a position on an upstream side of the first leading end of the first separating unit in a rotation direction of the image carrying unit.

Abstract: An image forming apparatus includes an image carrier, a first peel-off unit whose end portion is in contact with the image carrier and that peels off a recording medium from the image carrier, and a second peel-off unit whose end portion is not in contact with the image carrier and that peels off a recording medium from the image carrier. The second peel-off unit is disposed in such a way that the end portion thereof is located at a position that is the same as or upstream of a position of the end portion of the first peel-off unit in a rotation direction of the image carrier, and the second peel-off unit is movable so that the end portion thereof moves away from the image carrier.

Abstract: An image forming apparatus includes: a charging section configured to charge a surface of an image bearing member; an air-intake duct having an air-supply port, and configured to guide air sucked from an outside to the charging section through the air-supply port; an exhaust duct having an air-intake port, and configured to suck air around the charging section through the air-intake port and eject the air thus sucked. The air-intake duct has a configuration in which air guided to the charging section through the air-supply port flows in a direction orthogonal to a longitudinal direction of the charging section, or flows toward a center of the charging section in the longitudinal direction.

Abstract: An image forming apparatus includes: a charging section configured to charge a surface of an image bearing member; an air-intake duct having an air-supply port, and configured to guide air sucked from an outside to the charging section through the air-supply port; an exhaust duct having an air-intake port, and configured to suck air around the charging section through the air-intake port and eject the air thus sucked. The air-intake duct has a configuration in which air guided to the charging section through the air-supply port flows in a direction orthogonal to a longitudinal direction of the charging section, or flows toward a center of the charging section in the longitudinal direction.

Abstract: A sheet feed device feeding paper including; a loading platen loaded with sheets; a ventilation section providing a first ventilation port for blowing air to float a first side of a sheet of one sheet of the sheets loaded on the loading platen, and a second ventilation port for blowing air to float a second side opposed to the first side; and a control section for controlling the ventilation section; wherein the first side is a side of a topmost of loaded envelopes, the side of which height is lower than other sides, and when envelopes are to be fed, the control section controls the ventilation section to change air volume of the first ventilation port and the second ventilation port so as to float the first side more greatly than in case when sheets other than envelopes are fed.

Abstract: An image forming apparatus includes: an image forming section attached on an apparatus main body, having a forming and writing section that forms and writes an electrostatic latent image on an image carrier based on image information, and a transfer section which transfers a developed image after the electrostatic latent image has been developed, onto a sheet; a sheet conveyance section detachably attached on the apparatus main body, which conveys the sheet to the image forming section; a sheet detection section attached on the apparatus main body, which detects a sheet position conveyed to the image forming section by the sheet conveyance section; and a position correction section which corrects an image writing position for an image in the image forming section based on information of the detected sheet position.

Abstract: An image forming apparatus includes: an image forming section attached on an apparatus main body, having a forming and writing section that forms and writes an electrostatic latent image on an image carrier based on image information, and a transfer section which transfers a developed image after the electrostatic latent image has been developed, onto a sheet; a sheet conveyance section detachably attached on the apparatus main body, which conveys the sheet to the image forming section; a sheet detection section attached on the apparatus main body, which detects a sheet position conveyed to the image forming section by the sheet conveyance section; and a position correction section which corrects an image writing position for an image in the image forming section based on information of the detected sheet position.

Abstract: An image forming apparatus includes: a registration roller which corrects a skew of the envelope and conveys the envelope to the transferring section; a sensor provided between a transferring section and the registration roller wherein in a case when an envelope is conveyed with a side of the main body thereof having the flap portion being parallel to the conveying direction and the flap portion being located where the end detected is by the sensor, a controller allows the sensor to detect a position of the end of the parallel portion of the flap portion when the registration roller and the sensor are located at the parallel portion of the flap portion, and the controller changes a latent image writing position by the writing section in an image scanning direction perpendicular to the conveyance direction of the envelope according to the detection result by the sensor

Abstract: A sheet feed device feeding paper including; a loading platen loaded with sheets; a ventilation section providing a first ventilation port for blowing air to float a first side of a sheet of one sheet of the sheets loaded on the loading platen, and a second ventilation port for blowing air to float a second side opposed to the first side; and a control section for controlling the ventilation section; wherein the first side is a side of a topmost of loaded envelopes, the side of which height is lower than other sides, and when envelopes are to be fed, the control section controls the ventilation section to change air volume of the first ventilation port and the second ventilation port so as to float the first side more greatly than in case when sheets other than envelopes are fed.

Abstract: In a dispersed toner removing method, a suction port of a suction duct is provided close to a developer carrying body, and a suction device is provided downstream of a suction route of the suction duct with a toner collecting device between the suction device and the suction duct. The dispersed toner at the development area is sucked and removed by the operation of the suction device during the process of development. The control factor related to toner dispersion amount is monitored, and the suction force of the suction duct is modified based on the result of monitoring of the control factor.

Abstract: An image forming apparatus includes: an image forming section attached on an apparatus main body, having a forming and writing section that forms and writes an electrostatic latent image on an image carrier based on image information, and a transfer section which transfers a developed image after the electrostatic latent image has been developed, onto a sheet; a sheet conveyance section detachably attached on the apparatus main body, which conveys the sheet to the image forming section; a sheet detection section attached on the apparatus main body, which detects a sheet position conveyed to the image forming section by the sheet conveyance section; and a position correction section which corrects an image writing position for an image in the image forming section based on information of the detected sheet position.

Abstract: An aqueous antifouling composition comprising fine particles of a copolymer which comprises the following polymer units (a), (b) and (c) and which has a glass transition temperature of at most 5° C., and an aqueous medium in which the fine particles are dispersed: (a) polymer units of a (meth)acrylate having a polyfluoroalkyl group, (b) polymer units of an alkyl acrylate wherein the carbon number of the alkyl group is from 2 to 12, and (c) polymer units of a (meth)acrylic monoester of a polyol.