Abstract: A developer collecting container 1, mountable to and dismountable from an accommodating portion 10 provided in an apparatus, for collecting a collected matter which is powder or a fluid collected in the apparatus has a constitution in which a bonding portion 5 partially bonding opposing sides of sides forming an accommodating portion 3 for accommodating the collected matter is provided and in which at least a part of the bonding portion 5 is positioned below a height at which a volume of the accommodating portion 3 is half of a target collecting volume in a case that the volume is measured upwardly from a lowermost portion with respect to a direction of gravitation.

Abstract: Provided is an image forming apparatus including: a transfer member; a first image carrier on which a first toner image using toner of a first color is formed; a second image carrier which is provided on a downstream side relative to the first image carrier in a moving direction (rotating direction) of the transfer member, and on which a second toner image using toner of a second color is formed; a lubricant supply section that supplies a lubricant to the second image carrier; and a control section that controls a supply amount of the lubricant to the second image carrier in accordance with an overlap amount between the first toner image and the second toner image which are transferred from the first image carrier and the second image carrier to the transfer member.

Abstract: An image forming apparatus includes an image forming section, a detector, and a display section. The image forming section forms an image on a first side of a sheet. The sheet has the first side and a second side. The detector is positioned upstream of the image forming section in a sheet conveyance direction. The detector detects whether or not an image has been formed on the first side of the sheet. The display section displays information indicating that an image has been formed on the first side of the sheet when the detector detects that an image has been formed on the first side of the sheet.

Abstract: An image forming apparatus includes: an image holding section that includes a photoconductor having a surface protection layer; a charging section that charges a surface of the image holding section with a direct current potential; an exposure section that exposes the surface of the image holding section charged by the charging section to form an electrostatic latent image; a developing section that develops the electrostatic latent image formed on the image holding section; a transfer section that electrostatically transfers a visible image formed on the image holding section to a transfer medium; an exposure static elimination section that eliminates a residual charge of the image holding section by using the exposure section when image formation on the image holding section is stopped; a transfer static elimination section that eliminates the residual charge of the image holding section by using at least the transfer section when the image formation on the image holding section is stopped; and a switching

Abstract: An image forming apparatus includes a controller, a drum cartridge and a toner cartridge. The controller is configured to perform determining a value of a first initial developing bias for a first toner cartridge based on a cumulative number of drum rotations that is stored in a drum memory of the drum cartridge at the time when the cumulative dot count stored in the toner memory of the first toner cartridge is equal to zero. After determining the first initial developing bias, the controller is configured to perform determining a value of a second initial developing bias for a second toner cartridge based on the cumulative number of drum rotations that is stored in the drum memory at the time when the cumulative dot count stored in the toner memory of the second toner cartridge is equal to zero.

Abstract: An image forming apparatus includes: an image carrier; a lubricant applicator that applies a lubricant to the image carrier; a hardware processor; and a density unevenness measurer that is provided in the image forming apparatus or outside the image forming apparatus, and measures a first density unevenness for at least one of the density unevenness measurement image formed by the image former in the application unevenness detection mode or a density unevenness measurement image obtained by primary or subsequent transfer of the density unevenness measurement image, wherein the hardware processor detects the application unevenness of the lubricant applied by the lubricant applicator based on the first density unevenness measured by the density unevenness measurer.

Abstract: An image forming apparatus includes a housing and a first process cartridge. The first process cartridge is attachable to and detachable from the housing. The first process cartridge includes a first photosensitive drum, a first developing roller, and a developing frame. The developing frame has a toner inlet opening. The toner cartridge has a toner supply opening. The toner cartridge is positioned above the developing frame such that the toner supply opening and the toner inlet opening face with each other in upward/downward direction. In the state where the first process cartridge to which the toner cartridge is attached is attached to the housing, the toner cartridge is incapable of being detached from the first process cartridge. In a state where the first process cartridge to which the toner cartridge is attached is detached from the housing, the toner cartridge is detachable from the first process cartridge.

Abstract: A detection unit executes correction control of an image formation condition on a basis of a detection result of reflected light when infrared light is radiated to a test patch, which is transferred from a photosensitive drum to an intermediate transfer belt, and the intermediate transfer belt, wherein the intermediate transfer belt has a base layer which is thickest among a plurality of layers forming the intermediate transfer belt in a thickness direction of the intermediate transfer belt and to which an ion conductive agent is added, and an inner surface layer which has a light transmittance lower than that of the base layer.

Abstract: A decurling device is provided on a downstream side with respect to a fixing device in a medium transporting direction and straightens a curl formed in a medium transported to the decurling device. The decurling device includes a bending unit extending across the medium transporting direction and that bends the medium in a decurling direction by coming into contact with a leading end of the medium; and a position adjusting unit that adjusts, in a medium crosswise direction, tilt of a contact part of the bending unit, the contact part coming into contact with the leading end of the medium exited from the fixing device.

Abstract: An image forming apparatus has a normal image formation mode and a wide color gamut image formation mode in which an amount of a developer per unit area of a developer image of at least a color that differs from a prescribed color among a plurality of colors is increased as compared to the normal image formation mode. Image data is generated such that an image portion formed in the prescribed color in an image formed on a recording material is formed solely by a developer image of the prescribed color in the normal image formation mode, but formed by superimposing a developer image of a color that differs from the prescribed color on a developer image of the prescribed color or formed solely by a developer image of a different color in place of a developer image of the prescribed color in the wide color gamut image formation mode.

Abstract: A printed matter foil stamping system includes: a printing device that forms a toner layer or an ink layer on a paper sheet in accordance with print data; and a foil stamping device that performs foil stamping on the toner layer or the ink layer, wherein the printing device or a control device that controls the printing device includes a hardware processor that generates print data capable of forming a portion in which a thickness of the toner layer or the ink layer is relatively large and a portion in which the thickness is relatively small in an area in which foil stamping is to be performed, and, in accordance with the print data, the printing device forms the toner layer or the ink layer having a portion with a relatively large thickness and a portion with a relatively small thickness on the paper sheet.

Abstract: An electrophotographic blade to be brought into contact with a contact member, comprises a plate spring, and a resin layer that covers at least a part of a surface of the plate spring to form a contact region that comes into contact with a contact member. In the state where one of ends of the plate spring is fixed, a length (L) from the fixed end to the another end is 5 mm to 20 mm, and a force needed to displace the another end by 1 mm is 5 N/m to 100 N/m. The resin layer satisfies the requirements: (1) the thickness of the resin layer is 0.05 mm to 2.00 mm, (2) the tan ? value of the resin layer in the range of 5° C. to 40° C. is 0.05 to 0.70, and (3) the elastic modulus of the resin layer is 1.0 to 60.0 MPa.

Abstract: In an image forming apparatus including an optical print head, a length of a cable from a regulating portion to a connecting portion in a state where the connecting portion is connected to a connector is set to a length that enables the connector to be located on a front side of an opening when the optical print head moves to a pull-out position in the state where the connecting portion is connected to the connector.

Abstract: A sheet feeding device includes an upper sheet container, a lower sheet container, and a sheet detector. The lower sheet container disposed below the removable upper sheet container is configured to contain a sheet. The sheet detector is configured to detect the sheet in the lower sheet container and includes a sheet contact member disposed above the lower sheet container. The sheet contact member is contactable to the upper sheet container and the sheet in the lower sheet container. Either the upper sheet container or the sheet contact member has a sloped face inclined downward from downstream toward upstream in a container insertion direction, on at least one of a downstream side in the container insertion direction of a lower portion of the upper sheet container and an upstream side in the container insertion direction of an upper portion of the sheet contact member.

Abstract: A developing apparatus includes a sleeve for carrying a developer including toner and magnetic carrier, the sleeve having a plurality of grooves extending in a longitudinal direction; a magnet provided inside the sleeve, a non-magnetic regulating member, provided spaced from the sleeve, wherein an amount M/S (mg/mm2) of the developer carried on a unit area of the sleeve after passing by the regulating member, a gap SB (mm) between a free end of the regulating member and the sleeve, a density G (mg/mm3) of the developer, and a groove ratio ? which is a ratio of the grooves in the surface of the sleeve satisfy, 0.1?M/S (mg/mm2)?0.5, 0.2?SB (mm), and m/S (mg/mm2)×¼??×{SB (mm)+D (mm)}×G (mg/mm3)<M/S (mg/mm2).

Abstract: An image forming apparatus includes: a photosensitive drum; a light guide plate that irradiates, onto the photosensitive drum, light incoming through an end thereof by emitting the light from an irradiation end surface thereof; a static elimination light source that is disposed near the end of the light guide plate and emits the light into the light guide plate; and a blocking wall that is disposed between the light guide plate and the photosensitive drum to cover the irradiation end surface, and restricts the light emitted from the irradiation end surface non-uniformly in a longitudinal direction of the light guide plate. Of the light emitted from the irradiation end surface, portions emitted from end regions located around ends of the light guide plate are less restricted by the blocking wall than a portion emitted from a region other than the end regions of the light guide plate.

Abstract: An image forming apparatus according to the present invention includes a first conveyance member, a second conveyance member, and a controller. The first conveyance member and the second conveyance member convey a continuous sheet. The controller determines whether a second conveyance speed which is a conveyance speed of the continuous sheet conveyed by the first conveyance member and the second conveyance member can be detected normally on the basis of a first conveyance speed which is a conveyance speed of the continuous sheet conveyed by the first conveyance member.

Abstract: An image forming apparatus includes drum shafts supported by a main body, drum cartridges insertable and removable in an axial direction, a regulation side plate having bearings, a projecting portion provided to one of the regulation side plate and the main body, a fitting portion, and an urging force imparting portion. The urging force imparting portion is provided to the regulation side plate in an array direction of the bearings to impart an urging force that urges the regulation side plate toward the main body. At least a part of the urging force imparting portion is provided at a position for imparting the urging force on, with respect to the bearings, a side opposite to a position at which one of the projecting portion and the fitting portion is provided, in a direction orthogonal to the array direction of the bearings and the axial direction of each drum shaft.

Abstract: An image forming apparatus includes an image carrier, a toner supply unit, an application roller adjacent to the image carrier, a toner measuring unit, and a control unit. The toner supply unit supplies toner to the image carrier. The application roller applies a lubricant to the image carrier. The toner measuring unit measures an amount of toner transferred from the image carrier to the application roller. The control unit adjusts the supply of toner to be supplied to the image carrier in accordance with the amount of toner measured by the toner measuring unit.

Abstract: An optical writing device includes: an image carrier; an exposer that exposes a curved surface of the image carrier; and a control circuit that controls the exposer, wherein the exposer includes a plurality of light-emitting element groups having different positional relationships from one another with the image carrier, and has a configuration that is adjusted in accordance with at least one of an angle at which light reaching the curved surface of the image carrier from each light-emitting element group enters the image carrier, and a distance of each light-emitting element group from the image carrier.