JPH11184357A - Image forming device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image forming device constituted so that a filter is exchanged more easily than in a conventional image forming device. SOLUTION: A blowoff hole for a cooling fan 14 is formed on a main body side surface 20a for a cooling fan 12 provided inside a main body, while the filter 13A is exchangeably provided on the front of the hole 14. Then, a holding member 15 holding the filter 13A is provided on the surface 20a so that it can be turned downward. In the case of exchanging the filter 13A, the member 15 is turned downward, and then the filter 13A turned integrally with the member 15 is detached from the above.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an image forming apparatus provided with a cooling fan, and more particularly to replacement of a filter provided at a cooling fan outlet.

[0002]

2. Description of the Related Art Conventionally, there is an image forming apparatus such as a copying machine or a printer of an electrophotographic type or an electrostatic recording type. In such an image forming apparatus, an image carrier and a developing device are provided inside a main body. There is an image forming apparatus that forms a toner image by forming a toner image on an image carrier and transferring the toner image onto a transfer material.

FIG. 4 is a diagram showing a schematic configuration of a laser printer which is an example of a conventional image forming apparatus having such a configuration, in which image data is formed by an electric circuit (not shown).
Based on this, a latent image is formed on the photosensitive drum 1 as an image carrier by the laser scanner 2, and the latent image is developed by a developing device 3 as a developing device to form a toner image. .

On the other hand, a paper 4 as a transfer material is supplied by a paper feed roller 5.
Is fed to the transfer roller 7 via the registration roller 6, and then the toner image on the photosensitive drum is transferred by the transfer roller 7. Further, the transferred toner image is fixed on the sheet 4 in the fixing device 8, and thereafter, the sheet 4 on which the toner image is fixed is discharged to the discharge tray 11 through the pair of discharge rollers 9 and 10. .

[0005] A cooling fan 12 is provided in the main body. Between the cooling fan 12 and the cooling fan blow-out port 14, untransferred toner, ozone generated inside, and the like are sent to the outside. A filter 13 is provided to prevent emission. Since the filter 13 needs to be replaced periodically, when replacing the filter 13, the cover 14a is opened as shown in FIG. 5 and the filter 13 is taken out upward as shown by the arrow. .

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to provide an image forming apparatus in which a filter can be easily replaced as compared with such a conventional image forming apparatus.

[0007]

SUMMARY OF THE INVENTION The present invention comprises an image carrier and a developing device inside a main body, forms a toner image on the image carrier, and transfers the image onto a transfer material to form an image. A cooling fan provided inside the main body, a cooling fan outlet formed on a side surface of the main body, a filter replaceably provided on a front face of the cooling fan outlet, and the filter And a holding member provided on the side surface of the main body so as to be movable to a replacement position of the filter.

Further, in the present invention, the holding member is provided on the side surface of the main body so as to be rotatable downward.

Further, the present invention is characterized in that the holding member rotates downward about a rotation shaft provided below the cooling fan discharge port as a fulcrum.

Further, in the invention, it is preferable that the holding member rotates about 90 ° downward with respect to the side surface of the main body.

Further, the present invention is characterized in that a seal member is provided between the filter and the side surface of the main body.

Further, the present invention is characterized in that the filter removes a toner for forming the toner image and ozone generated inside the main body.

Further, as in the present invention, a cooling fan outlet is formed on the side of the main body for the cooling fan provided inside the main body, and a replaceable filter is provided on the front surface of the cooling fan outlet. A holding member for holding the filter is provided on the side surface of the main body so as to be rotatable downward.
Then, when replacing the filter, the holding member is rotated downward, and then the filter which has been rotated integrally with the holding member is removed from above.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a view showing a schematic configuration of a laser printer which is an example of an image forming apparatus according to a first embodiment of the present invention. 4, the same reference numerals as those in FIG. 4 denote the same or corresponding parts.

In FIG. 1, reference numeral 20 denotes a laser printer main body (hereinafter, referred to as an apparatus main body). Reference numeral 16 denotes a paper cassette. The paper 4 stored in the paper cassette 16 is supplied by a paper supply roller 5, and the leading ends thereof are aligned by a registration roller 6. Then, the paper 4 whose leading end is aligned
Thereafter, the toner image is conveyed to the transfer roller 7, and the transfer roller 7 transfers the toner image on the photosensitive drum. Further, the toner image is fixed in the fixing unit 8, and the discharge roller pair 9.1
After that, the sheet is discharged to the sheet discharge tray 11.

Reference numeral 13A denotes a filter disposed in front of a cooling fan outlet (hereinafter, referred to as an outlet) 14. When the heat is released, the toner not transferred to the paper 4 and the ozone generated inside are removed so that the heat is not released to the outside.

Reference numeral 15 denotes a holding member for supporting the filter 13A. The holding member 15 is provided on the side surface 20a of the main body so as to be rotatable downward about a rotation shaft 15a provided below the outlet 14 as a fulcrum. It was done.

Here, this holding member 15 is shown by an arrow A in FIG.
In the present embodiment, when the filter 13A is rotated downward by about 90 ° with respect to the apparatus main body 20, the filter 13A rotates downward integrally with the holding member 15 as shown in FIG. . The holding member 15 is provided with a member (not shown) for fixing or locking the filter 13A.
Can rotate downward integrally with the holding member 15.

When the filter 13A is to be replaced by rotating the filter 13A downward integrally with the holding member 15 as described above, the holding member 15 is rotated downward, as shown in FIG. The filter 13A can be removed in the direction of arrow B, that is, upward.

In this manner, the holding member 15 is
When the filter 13A is to be exchanged, the holding member 15 is turned downward, and then the filter 13A turned integrally with the holding member 15 is removed from above. In addition, visibility at the time of replacement of the filter 15A is improved, and a work space is widened, so that workability is improved. Further, since the filter 13A is taken out upward, even if toner or the like attached to the filter 13A falls, the toner can be received by the holding member 15, so that the surroundings can be prevented from being erroneously stained.

FIG. 3 is a diagram showing a schematic configuration of a laser printer which is an example of an image forming apparatus according to a second embodiment of the present invention. In the figure, the same reference numerals as those in FIG. 1 indicate the same or corresponding parts.

In FIG. 1, reference numeral 17 denotes a seal member provided between the filter 13A and the main body side surface 20a.
Since the gap between the filter 13A and the side surface 20a of the main body is eliminated by the sealing member 17, the leakage of toner and the like can be sufficiently prevented.

In the above description, the configuration in which the holding member moves to the filter replacement position by rotating downward has been described. However, the present invention is not limited to this, and the space inside the main body can be secured. Then, the holding member may be provided so as to be slidable in the horizontal direction, and when replacing the filter, the holding member may be slid and moved to the filter replacement position.

[0025]

As described above, according to the present invention, the holding member for holding the filter is provided movably on the side surface of the main body, and when the filter is replaced, the holding member is moved to the filter replacement position. Since the filter can be removed from above, it is easy to replace the filter. This makes it possible to prevent the surroundings from being erroneously stained with toner or the like, thereby improving usability.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a schematic configuration of a laser printer as an example of an image forming apparatus according to a first embodiment of the present invention.

FIG. 2 is a diagram illustrating replacement of a filter in the laser printer.

FIG. 3 is a diagram illustrating a schematic configuration of a cooling fan discharge port of a laser printer as an example of an image forming apparatus according to a second embodiment of the present invention.

FIG. 4 is a diagram showing a schematic configuration of a conventional laser printer.

FIG. 5 is a view for explaining attachment and detachment of a filter of a conventional laser printer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Photosensitive drum 3 Developing device 4 Paper 12 Cooling fan 13, 13A filter 14 Cooling fan outlet 15 Holding member 17 Seal 20 Device body 20a Body side surface

Claims (6)

[Claims] An image bearing member and a developing device are provided inside a main body, and a toner image is formed on the image bearing member.
In an image forming apparatus for creating an image by transferring an image onto a transfer material, a cooling fan provided inside the main body, a cooling fan outlet formed on a side surface of the main body, and a cooling fan outlet formed in front of the cooling fan outlet. An image forming apparatus, comprising: a filter provided so as to be replaceable; and a holding member which holds the filter and is provided on a side surface of the main body so as to be movable to a replacement position of the filter. 2. The image forming apparatus according to claim 1, wherein the holding member is provided on the side surface of the main body so as to be rotatable downward. 3. The image forming apparatus according to claim 1, wherein the holding member rotates downward about a rotation shaft provided below the cooling fan outlet. . 4. The image forming apparatus according to claim 1, wherein the holding member is configured to rotate downward by about 90 ° with respect to the side surface of the main body. 5. The image forming apparatus according to claim 1, wherein a seal member is provided between the filter and the side surface of the main body. 6. The image forming apparatus according to claim 1, wherein the filter removes toner forming the toner image and ozone generated inside the main body.