JP2002108159A - Waste toner recovering device of image forming device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that a large space is required at an external part of an outer cover of a side face for taking out a waste toner recovering container, in an image forming device wherein the waste toner recovering container is attached to a side face of a machine. SOLUTION: The waste toner recovering container attached to a side plate is rotated together with the rotation of the outer cover of the side face in the up-and-down direction to be taken out in an obliquely upper direction. Thus, the large space is not required at the external part of the outer cover of the side face.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for recovering untransferred waste toner which has been cleaned after developing and transferring by an electrophotographic method used in a copying machine, a printer and the like.

[0002]

2. Description of the Related Art In an electrophotographic system, a copy is obtained by developing an electrostatic image formed on the surface of a photoreceptor drum using toner, transferring the developed toner to paper, and performing fixing. . On the other hand, untransferred toner remains on the surface of the photoreceptor after transfer, but this toner has been deteriorated in charging performance, so it is cleaned and discharged to a dedicated collection container for waste toner. I have.

[0003] In an office machine sized machine usually used in offices and the like for copying paper up to A3 size, the paper is fed and transported left and right toward the machine, and a waste toner collecting container is installed on the front side of the machine. In other words, since the waste toner collecting container is detached by opening the front cover, the space on the side of the machine for attaching and detaching the waste toner collecting container does not matter. On the other hand, a wide-width machine for copying A1 and A0 size originals has a configuration in which the original and the paper are conveyed from the front side to the back side of the machine with respect to a fixed light source. As a result, the outer cover on the side of the machine is opened, and the waste toner collecting container is detached.

[0004]

As described above, A0, A1
Since the waste toner collection container of the wide-type machine that can copy a document of the size is installed on the side of the machine, when removing it, open the outer cover on the side of the machine by turning it laterally and then collect the waste toner from inside. Since the container was taken out by being translated horizontally, a large space was required outside the side of the machine.

Further, in actual detachment and attachment of the waste toner, a worker has to put his hand in a space outside the side surface of the machine and take it out, so that a sufficient space for this is required.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and the invention according to claim 1 has the following features.
The waste toner collecting container is placed on a support that is rotatable about a shaft attached to the side plate of the image forming apparatus in a direction substantially parallel to the side plate, and the outside of the image forming apparatus attached to the outside of the side plate. A waste toner collecting device that rotates in conjunction with the opening and closing of a cover. By removing the waste toner collecting container obliquely upward, it can be removed even if there is not enough space outside the side of the machine. .

In a second aspect of the present invention, there is provided the waste toner collecting apparatus according to the first aspect, wherein the waste toner collecting container is rotated by a moment of its own weight with the vertical rotation of the outer cover. Can be taken out without providing

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to illustrated embodiments. FIG. 1 shows A0 according to an embodiment of the present invention.
FIG. 1 is a perspective view showing an external configuration of a wide-area copying machine capable of copying up to a size. In a machine for copying a large document such as an A0 size document, as described above, the document is conveyed from the front of the machine, the surface of the document is exposed by a fixed optical system, and an image is formed by developing with toner based on this exposure. You. Further, a plurality of roll sheets wound in a roll shape as a sheet feeding unit are accommodated in a portion below the center in the height direction.

Referring to FIG. 2, the configuration of the machine and image formation will be described. The copying machine body 1 is provided with caster wheels 2 at the bottom so that it can move freely. An original cover 10 having a transport roller for transporting the original 9 along an original transport path 41 formed on the upper surface of the copying machine main body 1 is provided at an upper portion of the copying main body 1 so as to be freely opened and closed. A discharge port 54 for discharging the sheet on which the toner image has been transferred is opened on the front surface 1a of the copying machine main body 1. The sheet discharged from this discharge port is used as a guide member 91.
Copier body 1
a is sequentially accommodated through the introduction opening 93 into a pocket 92 formed by the front cover 5 along a.

Next, the image forming process in the copying machine will be described. After the photosensitive drum 20 is uniformly charged by the charging corona discharger 21, the light source 17
As a result, the reflected light applied to the surface of the original 9 through the transparent plate 13 passes through the selfoc lens 18 and is applied.
As a result, an electrostatic latent image corresponding to the document is formed on the photoconductor 20.

The electrostatic latent image is visualized into a toner image by a developing device 22, and the toner image is guided to a transfer corona discharger 24 by rotating the photosensitive drum 20 in the direction of an arrow 23, and is conveyed. After being transferred to the sheet 4 guided to the photoreceptor 20 from the paths D1, D2, D3, and D4, the sheet is separated from the photoreceptor drum 20 by the discharge of the corona discharger 25 for separation, guided to the fixing device 35, and discharged. Will be accommodated.

Next, the waste toner collecting section of the present invention will be described in detail. FIG. 3 is a perspective view including the side surface of a conventional wide-width machine capable of copying A0 and A1.
It is rotatable around 01. In order to remove the waste toner collecting container 102, the outer cover 100 is opened by rotating the outer cover 100 in the horizontal direction as shown by the arrow, and then the waste toner collecting container 102 is moved in a substantially horizontal direction as shown in FIG. And take it out. At this time, at least the width of the waste toner collecting container 102 and a space for manually grasping the waste toner collecting container 102 from the side of the machine are required.

On the other hand, in the present invention, as shown in FIG. 5, the outer cover 100 is rotatable up and down about the shaft 101 as shown by an arrow, and as shown in FIG. When the collection container 102 is rotated to an angle where it can be taken out in the direction of the arrow, it is mechanically stopped.
FIG. 7 shows how the waste toner collecting container 102 of the present invention rotates.
This will be described with reference to the cross-sectional view of FIG. A support 105 for the waste toner collecting container is mounted rotatably on a support shaft 104 attached substantially parallel to the machine side plate 103 in a substantially horizontal direction, and the waste toner collecting container is mounted on the support 105. The opening 107 of the waste toner collecting container 102 is connected to the toner discharge nozzle 106. When the outer cover 100 is opened, the connection is released by turning about the shaft 101 by the moment due to its own weight, and the outer cover 100 is turned. Is stopped, the waste toner collecting container 102 can be taken out obliquely upward. At this time, the waste toner collecting container 102
The opening 107 can be smoothly disconnected from the toner discharge nozzle 106 because the opening rotates about the support shaft. Due to such movement, even if there is not enough space outside the machine side plate 103, the waste toner collecting container 102
Can be taken out.

[0014]

In a wide-width copying machine capable of copying up to A0 size, when the side outer cover is opened by turning up and down, the waste toner collecting tank is turned by the moment of its own weight to rotate the waste toner collecting tank. Even if there is not enough space outside the outer cover on the side, it can be taken out diagonally upward.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an external configuration of a wide-width copying machine capable of copying up to an A0 size according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a wide-width copying machine capable of copying up to A0 size according to an embodiment of the present invention.

FIG. 3 is a perspective view showing opening and closing of a side outer cover of a conventional machine.

FIG. 4 is a perspective view showing removal of a waste toner collecting tank after opening a side outer cover of a conventional machine.

FIG. 5 is a perspective view showing the opening and closing of an outer cover on the side of a wide-width copying machine capable of copying up to A0 size according to an embodiment of the present invention.

FIG. 6 is a perspective view showing the removal of the waste toner collecting tank after opening the outer cover on the side of a wide-width copying machine capable of copying up to A0 size according to an embodiment of the present invention.

FIG. 7 is a cross-sectional view showing a mounted state of a waste toner collection tank of a wide-width copying machine capable of copying up to A0 size according to an embodiment of the present invention.

FIG. 8 is a cross-sectional view of a waste toner collecting tank when an outer cover of a wide-width copying machine capable of copying up to A0 size according to an embodiment of the present invention is opened.

[Explanation of symbols]

 1: Copying machine body 2: Caster wheels 4: Sheet 5: Front cover 9: Document 10: Document cover 17: Light source 18: Selfoc lens 20: Photoconductor drum 24: Charger 35: Fixing device 41: Document transport path 54 : Discharge port 91: guide member 92: pocket 93: introduction opening 100: outer cover 101: shaft 102: waste toner collection container 103: machine side plate 104: support shaft 105: support base 106: toner discharge nozzle 107: waste toner collection container Aperture

Claims (2)

[Claims] A waste toner collecting container is mounted on a support that is rotatable about a shaft attached to a side plate of the image forming apparatus in a direction substantially parallel to the side plate, and is mounted outside the side plate. A waste toner collecting device that rotates in conjunction with opening and closing of an outer cover of an image forming apparatus. 2. The waste toner collecting apparatus according to claim 1, wherein the waste toner collecting container is rotated by a moment of its own weight with the vertical rotation of the outer cover.