Abstract:
A method controls the timing of conveying a recording material to a conveyance belt so that a leading edge position of the recording material overlaps with a separation assisting toner image transferred on the conveyance belt in advance to prevent failure of recording material detachment from the conveyance belt.
Abstract:
An image forming apparatus comprises: a revolving image bearing member on which a toner image is formed; a transfer member that is provided at a position facing the surface of the image bearing member and transferring the toner image electrostatically on a transfer sheet traveling between the image bearing member and the transfer member; a static charge eliminator generating an electric field for discharging the electric charge on the transfer sheet for separation of the transfer sheet carrying the transferred toner image from the image bearing member; and a conductive member that is provided between the static charge eliminator and the transfer member.
Abstract:
An image forming apparatus comprises: a revolving image bearing member on which a toner image is formed; a transfer member that is provided at a position facing the surface of the image bearing member and transferring the toner image electrostatically on a transfer sheet traveling between the image bearing member and the transfer member; a static charge eliminator generating an electric field for discharging the electric charge on the transfer sheet for separation of the transfer sheet carrying the transferred toner image from the image bearing member; and a conductive member that is provided between the static charge eliminator and the transfer member.
Abstract:
An image forming apparatus is disclosed, including a movable image bearer bearing an image thereon which is transferred to a recording medium when the image comes into contact with the recording medium; and a twining prevention member which is arranged in the vicinity of the image bearer on the side downstream of a portion of the contact between the recording medium and the image bearer in a moving direction of the image bearer to prevent the recording medium from twining around the image bearer, wherein the twining prevention member includes, in the portion of the contact with the recording medium, a high friction resistance portion which regulates movement of the recording medium.
Abstract:
An image forming apparatus includes an image bearing member, a movable belt member configured to bear and convey a recording medium, a transfer member, a lifting unit configured to lift the belt member on a downstream side of the transfer member in a conveying direction of the recording medium, from an inner surface side, so that a belt surface locally protrudes in a width direction of the belt member, and an execution unit configured to be capable of executing a mode for separating the recording medium by forming using the lifting unit a first protrusion having a first height in a vertical direction perpendicular to the belt surface that is not lifted, and a second protrusion higher than the first height at a position adjacent to the first protrusion in the width direction.
Abstract:
An image forming apparatus having a print roller, in which a circumferential elastic contact part of the print roller contacts and presses a print medium to convey the print medium, the apparatus comprises a push roller pressing the print roller to elastically deform the circumferential elastic contact part; and a print media-releasing member including a claw member to be protruded into a space formed by the elastic deformation of the circumferential contact portion, the print medium being released from the print roller by means of the claw member.
Abstract:
An image-forming apparatus includes a recording head configured to eject ink droplets, a transport belt disposed facing the recording head and configured to transport a sheet, a suction mechanism to suctionally attract the sheet to the transport belt, a release mechanism configured to change a position of the transport belt between a home position close to the recording head and a release position away from the recording head, and a control mechanism configured to control transport and discharge of the sheet. The control mechanism, is configured to move the transport belt from the home position to the release position with the sheet being attracted to the transport belt when the control mechanism detects a sheet jam, rotate the transport belt in a direction in which the sheet is transported at the release position, and then discharge the sheet from the transport belt.
Abstract:
An image forming apparatus includes a recording material transporting path that extends in a direction from bottom to top of a body of the image forming apparatus and transports a recording material, a fixing device provided on the recording material transporting path, which includes a rotatable heating member that has an internal heat source and a rotatable pressure member that forms a nip area with the heating member by being located in contact with and pressed against the heating member, to nip the recording material for carrying out a fixing process, and an ejection guide member that guides a recording material ejected from the nip area to the outside of the image forming apparatus. The ejection guide member has a guide surface formed to intersect a tangent line of the heating member at the most downstream point of the nip area, and the guide surface intersects the tangent line at an obtuse angle.
Abstract:
A method for assisting in stripping a substrate from a charge receptor that is operable to transfer marking material to the substrate at a transfer zone, comprising determining the solid area coverage of the transfer marking material at a leading region of the substrate at the leading edge thereof, moving the substrate through the transfer zone, and applying a stripping force to the leading region of the substrate as a function of the solid area coverage operable to at least partially strip the leading region of the substrate from the charge receptor when the leading region of the traverses the transfer zone.
Abstract:
An image forming apparatus includes a recording material transporting path that extends in a direction from below upward and that transports a recording material, a fixing device provided on the way of the recording material transporting path, the fixing device having a rotatable heating member that has a heating source provided inside thereof and a rotatable pressure member that forms a fixing nip in pressure contact with the heating member, and a detaching member that contacts the heating member in the vicinity at a downstream side of the of the fixing nip in the rotation direction of the heating member and detaches the recording material from the heating member. The detachment member has a detachment guide surface extending from a contact point with the heating member, and a tilt of the detachment guide surface toward the pressure member side in relation with a vertical line including the contact point is not more than 2.5°.