Image forming apparatus

Patent metadata

Field	Value
Publication number	US-9459587-B2
Application number	US-201514686264-A
Country	US
Kind code	B2
Filing date	Apr 14, 2015
Priority date	Sep 5, 2014
Publication date	Oct 4, 2016
Grant date	Oct 4, 2016

Abstract

An image forming apparatus includes an exposure unit that forms a latent image by irradiating a photoconductor body with light by using light emitting elements that are arranged along an axial direction of the photoconductor body, the exposure unit having an inlet to which air flow is introduced; and an air blowing unit that produces the air flow that is introduced to the exposure unit from an air blow opening that is provided at a position that is in correspondence with a position of the inlet of the exposure unit.

First claim

What is claimed is:

1. An image forming apparatus comprising:
an exposure unit comprising a plurality of light emitting elements provided on a substrate, the substrate provided inside a housing of the exposure unit, the exposure unit configured to form a latent image by irradiating a photoconductor body with light by using the plurality of light emitting elements that are arranged along an axial direction of the photoconductor body, the housing having an inlet through which air flow is introduced inside the housing to cool the substrate; and
an air blowing unit configured to produce the air flow that is introduced to the exposure unit from an air blow opening that is provided at a position that is in correspondence with a position of the inlet of the exposure unit.

2. The image forming apparatus according to claim 1 , wherein the inlet is provided in an intermediate portion excluding opposite end portions along a longitudinal direction of the housing of the exposure unit, the longitudinal direction being substantially parallel to the axial direction of the photoconductor body.

3. The image forming apparatus according to claim 2 , wherein a portion of the air flow that is sent to the exposure unit from the air blow opening of the air blowing unit is guided towards an upstream side and a downstream side along a direction of rotation of the photoconductor body of the exposure unit.

4. The image forming apparatus according to claim 1 , wherein a portion of the air flow that is sent to the exposure unit from the air blow opening of the air blowing unit is guided towards an upstream side and a downstream side along a direction of rotation of the photoconductor body of the exposure unit.

5. The image forming apparatus according to claim 1 , wherein the plurality of light emitting elements are provided on a first surface of the substrate, and
wherein the air flow cools a second surface opposite to the first surface of the substrate.

6. An image forming apparatus comprising:
an exposure unit comprising light emitting element array provided on a substrate, the substrate provided inside a housing of the exposure unit and removably provided at a body of the image forming apparatus, the exposure unit configured to form a latent image by irradiating a photoconductor body with light by using the plurality of light emitting elements of the light emitting element array that are arranged along an axial direction of the photoconductor body, the housing having an inlet through which air flow is introduced inside the housing to cool the substrate; and
an air blowing unit, when the exposure unit is mounted on the body of the image forming apparatus, configured to produce the air flow that is introduced to the exposure unit from an air blow opening that is provided at a position that is in correspondence with a position of the inlet of the exposure unit.

7. The image forming apparatus according to claim 6 , wherein the inlet is provided in an intermediate portion excluding opposite end portions along a longitudinal direction of the housing of the exposure unit, the longitudinal direction being substantially parallel to the axial direction of the photoconductor body.

8. The image forming apparatus according to claim 7 , wherein a portion of the air flow that is sent to the exposure unit from the air blow opening of the air blowing unit is guided towards an upstream side and a downstream side along a direction of rotation of the photoconductor body of the exposure unit.

9. The image forming apparatus according to claim 6 , wherein a portion of the air flow that is sent to the exposure unit from the air blow opening of the air blowing unit is guided towards an upstream side and a downstream side along a direction of rotation of the photoconductor body of the exposure unit.

10. The image forming apparatus according to claim 6 , wherein the plurality of light emitting elements are provided on a first surface of the substrate, and
wherein the air flow cools a second surface opposite to the first surface of the substrate.

11. An image forming apparatus comprising:
an exposure unit that is removably provided at a body of the image forming apparatus, the exposure unit configured to form a latent image by irradiating a photoconductor body with light by using a plurality of light emitting elements that are arranged along an axial direction of the photoconductor body, the exposure unit having an inlet to which air flow is introduced; and
an air blowing unit that, when the exposure unit is mounted on the body of the image forming apparatus, configured to produce the air flow that is introduced to the exposure unit from an air blow opening that is provided at a position that is in correspondence with a position of the inlet of the exposure unit,
wherein the exposure unit is removably provided at the body of the image forming apparatus by moving along a guide portion that is provided at the body of the image forming apparatus, the exposure unit including a housing that is guided by the guide portion,
wherein the inlet is provided in the housing of the exposure unit, and
wherein the air blow opening is provided in the guide portion at the body of the image forming apparatus in correspondence with the inlet that is provided in the housing of the exposure unit.

12. The image forming apparatus according to claim 11 , wherein the inlet is provided in an intermediate portion excluding opposite end portions along a longitudinal direction of the housing of the exposure unit, the longitudinal direction being substantially parallel to the axial direction of the photoconductor body.

13. The image forming apparatus according to claim 12 , wherein a portion of the air flow that is sent to the exposure unit from the air blow opening of the air blowing unit is guided towards an upstream side and a downstream side along a direction of rotation of the photoconductor body of the exposure unit.

14. The image forming apparatus according to claim 11 , wherein a portion of the air flow that is sent to the exposure unit from the air blow opening of the air blowing unit is guided towards an upstream side and a downstream side along a direction of rotation of the photoconductor body of the exposure unit.

Assignees

• Fuji Xerox Co Ltd

Inventors

• Kokubu Fuyuki
• Numazaki Akira

Classifications

• G03G15/04

  for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material · CPC title

• G03G15/04036

  Details of illuminating systems, e.g. lamps, reflectors (lamp housings for copying cameras, reflex exposure lighting G03B27/542) · CPC title

• G03G21/206 Primary

  Conducting air through the machine, e.g. for cooling, filtering, removing gases like ozone · CPC title