摘要:
A paper transport device includes a transport section that transports paper on a first transport path, and reverses a transport direction to transport the paper onto a second transport path, and a detecting section that detects that the paper has arrived at the reversal position, wherein the detecting section includes a first member that is arranged on the first transport path, and changes posture thereof among a first posture, a second posture, and a third posture, a second member that changes posture thereof between a fourth posture and a fifth posture, a detector that detects whether the second member is in the fourth posture or in the fifth posture, and a joint member that couples the first member and the second member together, allows the second member to be in the fourth posture, rotates the second member to the fifth posture, and keeps the second member in the fourth posture.
摘要:
A fixing device includes a heating rotating body that heats a developer image formed on a recording medium, a pressurizing rotating body that pressurizes the recording medium by nipping the recording medium between the pressurizing rotating body and the heating rotating body, a pair of support plates that rotatably support both ends of one of the pressurizing rotating body and the heating rotating body, and a release member including an attachment portion attached to the support plates to hold the support plates from both sides in a thickness direction, and an operating portion. When an external force in a predetermined direction acts on the operating portion, the release member releases pressing of the one of the pressurizing rotating body and the heating rotating body against the other by moving the support plates in a direction away from the other.
摘要:
An image forming apparatus includes an apparatus body in which an image forming section that forms an image on a recording material and a drive mechanism that generates a rotational driving force are provided; a fixing section that transports the recording material while receiving the rotational driving force and fixes the image on the recording material, the fixing section being held by the apparatus body at two axial ends thereof; and a transmission mechanism that is provided at one of the two axial ends of the fixing section and is connected to the drive mechanism, the transmission mechanism transmitting the rotational driving force from the drive mechanism to the fixing section. When a pulling force is applied to a recording material that is present in the fixing section, the drive mechanism and the transmission mechanism are disconnected from each other.
摘要:
A fixing device includes a first rotating member that rotates while pinching a sheet which holds an image on a first surface of the sheet and is transported, fixes the image to the sheet, and heats the image while coming into contact with the first surface; a second rotating member that comes into contact with a second surface that is a back surface of the first surface; a third rotating member that guides the sheet by rotating while coming into contact with the first surface of the sheet fed from a gap between the first and second rotating members; and a support member that supports the first, second, and third rotating members with a space through which the heat of the first rotating member is transferred to the third rotating member interposed between the first and third rotating members.
摘要:
A fixing device includes a cylindrical rotating member rotating in a circumferential direction thereof and having a slot at an end thereof and a protruding section extending along an edge of the slot at a front side in a rotational direction of the rotating member, the rotating member receiving a rotational driving force via the slot; a pressing member pressing a recording medium bearing an unfixed toner image on a surface thereof by nipping the recording medium together with the rotating member so as to fix the toner image onto the surface; a heat source heating the recording medium; and a driving member having an engagement section engaged with the slot and in contact with the protruding section at a position separated from a peripheral wall of the cylinder by a certain distance, the driving member imparting the rotational driving force to the rotating member via the engagement section.
摘要:
A unit mounting and dismounting mechanism includes a unit mountable in and dismountable from an apparatus body, an engaging portion provided in one of the apparatus body and the unit, a pressing member provided in the other of the apparatus body and the unit, the pressing member engaging with the engaging portion and pressing the unit against the apparatus body with a biasing force of a biasing member in a mounting direction of the unit when the unit is mounted in the apparatus body, and a release member provided in the unit, the release member being operated in a direction different from a dismounting direction of the unit from the apparatus body so as to move the pressing member against the biasing force of the biasing member in a direction to release pressing.