Separating device
AssigneeSharp Kabushiki Kaisha
InventorsHirokazu Yamauchi, Junya Masuda
Life of this patent
Estimating the term…
Abstract
The separating part of the separating device receives a reactive force that occurs on the outer peripheral surface of the photoreceptor drum, at the contact point where the separating part and the photoreceptor drum are in contact. The separating device controller changes the position of the rotational supporting point so as to decrease the rotational moment M of the reactive force at the rotational supporting point of the separating device, in accordance with increase of the reactive force that occurs on the outer peripheral surface of the photoreceptor drum as the separating part is worn down.
Claims5
A separating device for separating a sheet medium being stuck on an outer peripheral surface of a photoreceptor drum, the separating device comprising:
- a separating member that abuts the sheet medium being conveyed along an outer peripheral surface of the photoreceptor drum and separates the sheet medium from the photoreceptor drum;
- a separating member driver that causes the separating member to abut on and separate from the photoreceptor drum and changes a position of a rotational supporting point of the separating member, and
- wherein the separating member has a tapered, wedge-shaped front end that abuts the outer peripheral surface of the photoreceptor drum,
- the front end is rotatably supported in such a manner as to rotate about the rotational supporting point that is disposed on a line parallel to an axis of the photoreceptor drum, and
- the separating member driver changes the position of the rotational supporting point so that, as larger reactive force occurs at a contact point where the front end comes in contact with the photoreceptor drum on the outer peripheral surface of the photoreceptor drum, the rotational moment of the reactive force on the rotational supporting point of the separating member is lower.
Dependencies are inferred from the claim text.