Exposure device and image forming apparatus
AssigneeFuji Xerox Co., Ltd.
InventorTetsuya Sakamoto
Life of this patent
Estimating the term…
Abstract
The exposure device is provided with: an exposure unit that has one end and a different end, that includes plural light-emitting elements arranged in a first direction along a direction of a rotational axis of a rotating image carrier, and that exposes the image carrier; a one-end-side holding portion that holds a one end part, on the one end side, of the exposure unit; a first reference part that is formed in the one-end-side holding portion, and that serves as a reference for aligning the exposure unit in the first direction by bringing the one end part of the exposure unit into contact with the first reference part; and an application portion that applies, to the one end part of the exposure unit, force with which the one end part of the exposure unit is pressed against the first reference part.
Claims14
An exposure device comprising:
- an exposure unit that has one end and a different end, that includes a plurality of light-emitting elements arranged in a first direction along a direction of a rotational axis of a rotating image carrier, and that exposes the image carrier;
- a one-end-side holding portion that holds a one end part, on the one end side, of the exposure unit;
- a first reference part that is formed in the one-end-side holding portion, and that serves as a reference for aligning the exposure unit in the first direction by bringing the one end part of the exposure unit into contact with the first reference part;
- and
- an application portion that applies force with which the one end part of the exposure unit is pressed in the first direction against the first reference part, the force being applied locally at the one end side.
An image forming apparatus comprising:
- an image carrier that rotates;
- a charging device that charges the image carrier;
- an exposure unit that has one end and a different end, that includes a plurality of light-emitting elements arranged in a first direction along a direction of a rotational axis of the image carrier, and that exposes the image carrier to form an electrostatic latent image on the image carrier;
- a one-end-side holding portion that holds a one end part, on the one end side, of the exposure unit;
- a first reference part that is formed in the one-end-side holding portion, and that serves as a reference for aligning the exposure unit in the first direction by bringing the one end part of the exposure unit into contact with the first reference part;
- an application portion that applies force with which the one end part of the exposure unit is pressed in the first direction against the first reference part, the force being applied locally at the one end side;
- and
- a developing device that develops the electrostatic latent image formed on the image carrier to form an image.
An exposure device comprising:
- an exposure unit that includes a first end portion, a second end portion, and a plurality of light-emitting elements arranged in a longitudinal direction of the exposure unit, the light-emitting elements disposed between the first end portion and the second end portion, and that exposes an image carrier, the first end portion comprising a contact portion;
- and
- a holding member that is disposed at the first end portion and that comprises a first reference portion which serves as a reference for aligning the exposure unit in the longitudinal direction, and a hook which hooks the first end portion of the exposure unit and pulls the first end portion in the longitudinal direction of the exposure unit toward the first reference portion, the contact portion of the exposure unit contacting the first reference portion when the exposure unit is aligned by the holding member,
- wherein the second end portion is free from restraint in the longitudinal direction.
Dependencies are inferred from the claim text.