19411results about "Electrographic process apparatus" patented technology

An image forming apparatus includes: a fixing chute located upstream of a fixing device in a sheet conveying direction; a fixing guide opposing the fixing chute and including a guide conveying surface; and a fixing shutter opposing the fixing chute and configured to move between a closed position and an opened position. In a state in which the fixing shutter is positioned at the opened position, a shutter conveying surface of the fixing shutter is inclined in a direction approaching the fixing chute toward a downstream side in a sheet conveying direction such that an end portion of the shutter conveying surface on the downstream side is located closer to the fixing chute than an end portion of the guide conveying surface on an upstream side in the sheet conveying direction.

To provide a film that well maintains oil repellent properties even when used continuously in a high temperature environment.SOLUTION: A film contains: resin; and a siloxane compound that has a structure A of the formula [RSiO1.5]n (in the formula, R represents an organic group, and n represents an integer of 2 or more), wherein at least one R of a plurality of Rs present in the structure A is a group including an alkyl group, and the difference in the solubility parameter (SP value) between the resin and the structure A is 3.0 or less in terms of absolute value. The film has a surface free energy of 40 mJ / m2 or less.SELECTED DRAWING: None

To provide an electrophotographic member that can stably exhibit an electrostatic offset prevention effect.SOLUTION: An electrophotographic member has at least a base layer, an elastic layer, and a surface layer containing fluororesin in this order. The surface resistivity of the elastic layer is 1×1014 Ω / sq. or more. The surface resistivity of the surface layer is 1×1015 Ω / sq. or more. The electrophotographic member further has a resin layer between the elastic layer and the surface layer. The resin layer includes an ion conductive agent. The surface resistivity of the resin layer is 1×1014 Ω / sq. or more.SELECTED DRAWING: Figure 3

An image-forming apparatus includes a fixing device, a shutter, and an urging member. The fixing device includes a heater unit, and a pressure unit forming a nipping region in cooperation with the heater unit. The shutter is movable between a closing position for covering a part of the heating unit and an opening position for uncovering the part of the heating unit. The urging member is configured to urge the shutter such that: the shutter at the closing position is maintained at the closing position; and the shutter at the opening position is maintained at the opening position.

An image-forming apparatus includes a housing, a fixing device, a shutter, a link, a circuit board, and a fan. The fixing device includes a heating unit and is configured to thermally fix a toner image to a sheet conveyed in a conveying direction. The shutter is movable relative to the fixing device between a closing position for closing an upstream end of the heating unit in the conveying direction and an opening position for exposing the upstream end of the heating unit. The link is connected to the shutter, and is configured to abut on a cartridge, which is detachably attachable to the housing, to move the shutter between the closing position and the opening position. The circuit board and the fan are spaced apart from each other to provide an airflow path through which air flows. The link is positioned between the circuit board and the fan.

An image-forming apparatus includes a housing, a cartridge, a fixing device, a shutter, a link connected to the shutter, and an electrical contact. The fixing device includes a heating unit. The shutter is movable between a closing position for covering an upstream end of the heating unit in a sheet conveying direction and an opening position for uncovering the upstream end of the heating unit. The link is provided on the housing and is configured to abut on the cartridge to move the shutter between the closing position and the opening position. The electrical contact is provided on the housing and contacts an electrical contact surface of a memory of the cartridge attached to the housing. In the housing, the link and the electrical contact are positioned on opposite sides of a center line of the attached cartridge in a widthwise direction orthogonal to an attachment / detachment direction of the cartridge.

To provide a film with high oil repellency even in a high temperature environment.SOLUTION: There is provided a film having a structure A of a formula: [RSiO1.5]n (wherein R represents an organic group, and n represents an integer of 2 or more), and at least one R in the structure A includes a siloxane compound having an alkyl group.SELECTED DRAWING: None

A drum cartridge includes a photosensitive drum rotatable about an axis extending in a first direction, a developing roller configured to supply toner to the photosensitive drum, and a developing housing configured to store the toner therein. The developing housing includes a first housing supporting the developing roller, a second housing having an inlet port, and a gasket providing a sealing between the first housing and the second housing. The first housing is movable relative to the photosensitive drum. The second housing is immovable relative to the photosensitive drum. The gasket is elastically deformable in response to movement of the first housing relative to the photosensitive drum.

An image forming system includes an image forming unit for forming a first toner image and a second toner image on a first surface and a second surface of a recording medium by using toner containing wax; a pressure-bonding unit for pressure-bonding the recording medium folded in two by applying heat and pressure to the recording medium, an inner surface of the recording medium folded in two being pressure-bonded via an adhesive medium, one of the first surface and the second surface being the inner surface of the recording medium folded in two, the pressure-bonding unit pressure-bonding the recording medium folded in two via an adhesive member; and a control unit for determining an image forming order so that an image is formed on an outer surface of the recording medium folded in two, and then on the inner surface of the recording medium folded in two.

A medium processing apparatus includes a liquid applier, a post-processing device, and circuitry. The liquid applier includes a liquid application member that applies liquid to a part of a medium, the medium being at least one medium. The post-processing device binds a bundle of media including the medium to which the liquid is applied by the liquid applier. The circuitry changes, according to a binding condition for the post-processing device, at least one of an amount of movement of the liquid application member toward the medium or a contact time during which the liquid application member is in contact with the medium.

The invention relates to the technical field of printing equipment, and provides a toner cartridge and an image forming device. A developing roller; the driving gear is used for receiving driving force from the outer side of the toner box and is arranged on the first side wall of the shell; a transmission gear set engaged with the driving gear and transmitting the driving force to the developing roller and the stirring member; the detection rotating piece is arranged on the shell and located on the second side wall or the position closer to the second side wall than the first side wall; the intermediate transmission shaft is used for transmitting the driving force to the detection rotating piece; wherein a first rotating axis formed by the rotating motion of the detection rotating piece is perpendicular to a second rotating axis formed by the rotating motion of the intermediate transmission shaft, and the second rotating axis is parallel to the rotating axis of the driving gear. The problem that in the prior art, the length of the toner box is increased due to the fact that the rotating part protrudes towards the outer side of the toner box is detected is solved.

The invention discloses a double-sided printer, and relates to the technical field of printing equipment. The double-sided printer comprises a first conveying mechanism, a first printing mechanism, a guide mechanism, a second conveying mechanism and a second printing mechanism, the first conveying mechanism is used for conveying paper in the first direction, the paper comprises a first surface and a second surface which are opposite, and the first surface of the paper located on the first conveying mechanism is arranged upwards; the first printing mechanism is used for printing a first surface; the guide mechanism is used for receiving the paper after the first surface is imaged and turning over the paper until the second surface faces upwards; the second conveying mechanism is used for receiving the paper overturned by the guide mechanism and conveying the paper along a second direction opposite to the first direction; the second printing mechanism is used for printing the second surface. The double-sided printer provided by the invention can improve the double-sided printing efficiency and ensure the image quality.

An image forming apparatus includes a conveyance unit, a transfer unit, a fixing unit, a detection unit configured to detect a deflection amount of the sheet, and a control unit configured to control a conveyance speed of the sheet by the fixing unit based on a detection result of the detection unit. The control unit is configured to perform a mode that performs, during a time when a single sheet is being nipped by the conveyance unit, the transfer unit, and the fixing unit, a first process of controlling the conveyance speed of the sheet by the fixing unit such that the deflection amount becomes a first deflection amount, and a second process, performed after the first process, of controlling the conveyance speed of the sheet by the fixing unit such that the deflection amount becomes a second deflection amount smaller than the first deflection amount.

An image forming apparatus includes (i) an apparatus main body including a discharge portion and a wall disposed on an opposite side to the discharge portion with respect to a horizontal direction, the discharge portion including a first opening, and the wall including a second opening, (ii) a photosensitive drum disposed below the first opening and the second opening, (iii) an exposed surface exposed toward a first communication path communicating with the first opening and the second opening and disposed below the first communication path. The image forming apparatus includes a receiving surface projecting from the exposed surface toward the first communication path. The receiving surface is upwardly oriented with respect to the vertical direction and faces the first communication path. The receiving surface is inclined relative to the vertical direction and the horizontal direction.

A medium processing apparatus includes a liquid applier, a crimper, a stapler, and circuitry. The liquid applier applies liquid to a liquid application position of a medium. The crimper presses and deforms at least a part to which the liquid is applied by the liquid applier, to bind a plurality of media including the medium to which the liquid is applied. The stapler performs stapling with a staple on a medium bundle in which the plurality of media is bound by the crimper. The circuitry controls operations of the crimper, the liquid applier, and the stapler, and selectively switches between first binding performed by the liquid applier and the crimper and second binding performed by only the stapler, in accordance with information on the medium or a binding position at which the medium bundle is bound by the crimper.

A sheet processing apparatus includes: a center-folder to perform a center-folding process on a sheet bundle including multiple sheet materials; a back-crimp binder to: form a back portion on the sheet bundle subjected to the center-folding process; and perform a crimp-binding process on the back portion; and a controller configured to: cause the center-folder to perform the center-folding process; and cause the back-crimp binder to perform the crimp-binding process on the back portion while forming the back portion on the sheet bundle in the crimp-binding process.

To provide an electrophotographic member with improved filming, and a development roller.SOLUTION: The present invention is an electrophotographic member having a Hansen solubility parameter dispersion term δD of 17.0 MPa0.5 or less, a polar term δP of 8.0 MPa0.5 or less, and a hydrogen bond term δH of 7.0 MPa0.5 or less. A development roller of the present invention uses the electrophotographic member of the present invention in a coating layer.SELECTED DRAWING: Figure 1

To provide an electrophotographic photoreceptor that reduces the difference in electric characteristics between the early stage and the final stage of repeated image formation and reduces the occurrence of burn-in ghost on an image, wherein these operations are achieved over a relatively large setting area related to the intensities of charging and exposure.SOLUTION: An electrophotographic photoreceptor comprises a conductive substrate, an undercoat layer, and a photosensitive layer. The undercoat layer contains a binder resin and a perinone compound. The photosensitive layer contains polyester resin (1) having at least one dicarboxylic acid unit (A) selected from the group consisting of a dicarboxylic acid unit (A2), a dicarboxylic acid unit (A3), and a dicarboxylic acid unit (A4), and a diol unit (B). The mass ratio of the polyester resin (1) in the photosensitive layer is 15 mass% or more.SELECTED DRAWING: None

An image forming apparatus includes a main body housing, a drum cartridge, and a toner cartridge. The drum cartridge is movable inside the main body housing between a drum first position and a drum second position. The toner cartridge is movable between a toner first position and a toner second position in a state where the toner cartridge is coupled to the drum cartridge. In a state where the toner cartridge is coupled to the drum cartridge, the drum cartridge is at the drum second position, and the toner cartridge is at the toner second position, the toner cartridge is pivotally movable relative to the drum cartridge between a first pivot position at which coupling of the toner cartridge to the drum cartridge is not releasable and a second pivot position at which the coupling of the toner cartridge to the drum cartridge is releasable.

To provide a fixing device that achieves both wear resistance and chemical crack durability.SOLUTION: A fixing device has: a fixing film that has an endless shape; a pressure member that is arranged opposite to the fixing film and forms a nip with the fixing film; and a heating member that is arranged inside the fixing film, has a facing surface that faces an inner peripheral surface of the fixing film, and urges the fixing film against the pressure member. Fluorine grease is interposed between the inner peripheral surface and the facing surface. The fixing film has at least a base layer, an elastic layer, and a surface layer in this order. The surface layer includes a PFA. The surface layer includes a plurality of spherulites of the PFA. In an endothermic curve when measurement is performed with a predetermined condition by using a DSC, with a sample sampled from the surface layer as a measurement sample, an endothermic quantity in a temperature increasing process is 21 J / g or more.SELECTED DRAWING: Figure 3

A sponge roller is provided with a shaft body 2, and a foam elastic layer 3 provided on the outer circumference of the shaft body 2. An average cell diameter of the foam elastic layer 3 is 20-100 μm, and a difference between a maximum value and a minimum value of hardness A of five points of the foam elastic layer 3 is less than 2.5 points.

To prevent a variation in torque generated in a first rotating body when a second rotating body moves from a contact position to a separated position.SOLUTION: A rotating device comprises: a first rotating body that is rotatable in a predetermined rotation direction; a second rotating body that is movable to a contact position where it is in contact with an outer peripheral surface of the first rotating body and a separated position where it is separated from the first rotating body to the radial outside of the first rotating body, and is rotatable in the direction opposite to the rotation direction; a first driving mechanism that drives to rotate the first rotating body at a first peripheral speed, and causes the second rotating body to be rotated at the contact position; and a second driving mechanism that generates a driving force in the opposite direction for the second rotating body at the contact position and the separated position, to drive to rotate the second rotating body at a second peripheral speed slower than the first peripheral speed at the separated position and to apply a resistance force in the opposite direction to the first rotating body through the second rotating body at the contact position.SELECTED DRAWING: Figure 11

An image forming apparatus includes, an image former that forms an image on a sheet, a conveyance path in which the sheet is conveyed to the image former, a sheet detector that is provided in the conveyance path and that detects a type of the sheet conveyed on the conveyance path; and a controller that performs control related to maintenance of the conveyance path based on the type of the sheet detected by the sheet detector.

An image forming apparatus includes a sensing portion that has a light-emitting portion and a light-receiving portion that receives light from the light-emitting portion, the light from inside of a toner accommodating portion to outside of the toner accommodating portion via a light-transmitting portion. The light-transmitting portion has a first lightguide portion that guides the light to the inside of the toner accommodating portion, and a second lightguide portion that guides the light to the light-receiving portion. The image forming apparatus further includes a cover member that covers the first lightguide portion and the second lightguide portion. A part of the second lightguide portion that is closest to a passage region of laser light is at a position closer to the passage region than any of parts of the first lightguide portion, and a cover member is configured so as not to cover the part that is closest.