JP2010204362A5

JP2010204362A5 -

Info

Publication number: JP2010204362A5
Application number: JP2009049441A
Authority: JP
Filing date: 2009-03-03
Publication date: 2012-03-29
Anticipated expiration: 2029-03-03

Description

本発明は、第１の方向に沿って複数の発光部が配列されている光源を含み、画像情報に応じて前記第１の方向に直交する第２の方向に光束を射出する光学ヘッドと；前記光学ヘッドからの光束の光路上に配置され、前記第１の方向を長手方向とし、該第１の方向に平行な軸回りに回転可能であり、その表面に潜像が形成される像坦持体と；前記光学ヘッドと前記像坦持体との間に、前記第１の方向に関してそれぞれ異なる位置に配置され、前記光学ヘッドと前記像坦持体との距離を規定する複数の規定機構と；を備え、前記複数の規定機構のうちの少なくとも１つの規定機構は、前記光学ヘッドと前記像坦持体との距離を変更するための調整機構と、前記第１の方向及び前記第２の方向のいずれにも直交する第３の方向に離間している２つの突き当て部材とを有し、該２つの突き当て部材は、いずれも前記像坦持体、及び前記像坦持体に付随している部材のいずれかと接触している画像形成装置である。 The present invention includes an optical head that includes a light source in which a plurality of light emitting units are arranged along a first direction, and emits a light beam in a second direction orthogonal to the first direction according to image information; An image carrier that is disposed on the optical path of the light beam from the optical head, can rotate about an axis parallel to the first direction, and has a latent image formed on the surface thereof. A plurality of defining mechanisms which are arranged at different positions with respect to the first direction between the optical head and the image carrier and define the distance between the optical head and the image carrier. And at least one of the plurality of defining mechanisms includes an adjustment mechanism for changing a distance between the optical head and the image carrier, the first direction, and the second Two spaced apart in a third direction orthogonal to any of the directions And a come contact member, the two abutment members are both the image-bearing member, and images forming device that has been in contact with any of the members that are associated with the image-bearing member.

Claims

An optical head that includes a light source in which a plurality of light emitting units are arranged along a first direction, and emits a light beam in a second direction orthogonal to the first direction according to image information;
An image carrier that is disposed on the optical path of the light beam from the optical head, can rotate about an axis parallel to the first direction, and has a latent image formed on the surface thereof. With possession;
A plurality of defining mechanisms arranged between the optical head and the image carrier at different positions with respect to the first direction and defining a distance between the optical head and the image carrier; ,
At least one of the plurality of defining mechanisms includes an adjusting mechanism for changing a distance between the optical head and the image carrier, and any of the first direction and the second direction. also has a third two abutment members are spaced apart in the direction of the perpendicular,
The two abutment members, the image-bearing member both, and images forming device that has been in contact with any of the members that are associated with the image-bearing member.

The adjusting mechanism, the by changing the interval for the third direction of the two abutment members, according to claim 1, characterized in that to change the distance between the image carrying body and the optical head Image forming apparatus.

The image forming apparatus according to claim 2 , wherein the positions of the two abutting members in the second direction change simultaneously when the interval in the third direction is changed.

The image forming apparatus according to claim 3 , wherein the two abutting members are both inclined in the longitudinal direction from the second direction to the third direction.

The adjustment mechanism is configured to apply a force from one side of the third direction to at least one of the two abutting members, and to at least one of the two abutting members. The image forming apparatus according to claim 2 , further comprising a second pressing member that applies a force from the other side of the third direction.

The first pressing member is an elastic member that applies a force so as to widen an interval between the two butting members in the third direction, and the second pressing member is a screw. The image forming apparatus according to claim 5 .

The second pressing member is an elastic member that applies a force so as to reduce a distance between the two abutting members in the third direction, and the first pressing member is formed of the two abutting members. 6. The image forming apparatus according to claim 5 , wherein the image forming apparatus is a wedge-shaped member inserted therebetween.

The adjustment mechanism further includes a support member that is supported so that at least one of the two butting members is movable in the third direction,
At least one of the two abutment members, after interval for the third direction of the two abutment member is adjusted, according to claim 2-7, characterized in that it is fixed to the support member The image forming apparatus according to claim 1.

The two abutting members are in contact with either of the image carrier and the member attached to the image carrier at one end thereof,
Wherein the at least one defined mechanism can be of any claim 1-8, characterized by further comprising a contact member in which the end portion of the other side is in contact in the two abutment member with respect to said second direction The image forming apparatus according to claim 1.

Any of the two abutment members, the image-bearing member, and the claims 1-9, characterized in that the portion in contact with any of the members that are associated with the image carrying body is curved The image forming apparatus according to claim 1.

The member attached to the image carrier is a rotation axis of the image carrier,
The two abutment members are both image forming apparatus according to any one of claims 1 to 10, characterized in that in contact with the rotation axis of said image carrying body.

The image carrier is a photosensitive drum;
The two abutment members are both image forming apparatus according to any one of claims 1 to 10, characterized in that in contact with the metal portion of the photosensitive drum.

Wherein the plurality of defined mechanisms, an image forming apparatus according to any one of claims 1 to 12, characterized in that removably attached to the optical head.

The image forming apparatus according to claim 13 , wherein at least one of the attachment positions of the plurality of defining mechanisms in the optical head is slidable in the third direction.