KR200425295Y1 - Paper Cassette for Image formation Apparatus Improving Alignment and Image Quality - Google Patents

Abstract

The present invention relates to a paper cassette for an image forming apparatus capable of aligning and improving image quality. The present invention provides a paper cassette for aligning a paper, which suitably accommodates a change in length caused by a curled paper in the cassette through an alignment member attached to the cassette. By forming the alignment pieces so as not to be separated, the printing state of the paper is improved.

The construction of the present invention is a paper cassette for an image forming apparatus provided with a gap adjusting plate for supporting and moving in accordance with the width of the paper to be loaded, wherein an inclined groove is formed on the inner side of the gap adjusting plate, It is a structure with an alignment member attached.

The present invention having such a configuration has a structure in which the alignment member is inclinedly attached to the gap adjusting plate installed in the cassette, so that even if the width of the paper is changed due to the occurrence of curled paper in the cassette, the alignment state is not disturbed. In addition, by forming an ultrasonic fusion portion in the cut circumference of the alignment member, the alignment piece is separated and scattered by the cut portion, thereby having an effect of maintaining a good image quality without affecting the image quality of the paper.

Paper, Cassette, Copier, Image Forming Device, Alignment, Ultrasonic, Fusing, Shattering, Image Quality, Slant

Description

Paper Cassette for Image Forming Apparatus Improving Alignment and Image Quality}

1 is a schematic view showing a state in which an alignment member is attached to a conventional paper cassette for an image forming apparatus;

2 is a cross-sectional view illustrating an alignment member attached to a gap adjusting plate of a conventional paper cassette for an image forming apparatus, and showing a state of contacting an alignment member of a curled paper among the stacked sheets;

3 is a front view showing an alignment member attached to a gap adjusting plate of a conventional paper cassette;

Figure 4 is a cross-sectional view showing a state in which the alignment member is attached to the cassette according to the present invention,

5 is a front view of the alignment member according to the present invention.

* Explanation of Signs of Major Parts of Drawings *

50: spacing plate

51: inclined groove

51a: slope

60: alignment member

61: alignment piece

70: ultrasonic welding unit

The present invention relates to a paper cassette for an image forming apparatus capable of aligning and improving image quality, and more particularly, to appropriately accommodate a change in length caused by curl in a paper through an alignment member attached to the cassette for paper alignment. By aligning the cut pieces formed on the cut surface, the printing state of the paper is improved.

In general, an image forming apparatus means a device such as a copying machine, a printer, a facsimile, or the like, and this image forming apparatus is provided with a paper supply unit for supplying a paper on which an image is formed together with an image forming unit for forming an image. .

The paper supply unit is provided with a cassette on which paper is loaded and a paper feed roller for continuously feeding the paper of the cassette. Then, the cassette is provided with lifting means for lifting the paper and a pickup roller for picking up the lifted paper.

As shown in FIG. 1, as shown in FIG. 1, a space adjusting plate 20, 30, 40 that is movable in the cassette 10 to adjust the interval for each sheet of paper is installed on the top, bottom, left, and right sides of the drawing. .

Alignment members 21, 31 and 41 are attached to inner surfaces of the gap control plates 20, 30 and 40, respectively. The attachment positions of the alignment members 21, 31 and 41 are to be attached slightly above the height of the maximum paper loading amount of the cassette 10.

A plurality of alignment pieces 21a, 31a and 41a having a hair shape are formed on the front surface of the alignment members 21, 31 and 41. Usually, something like velcro tape is used. The alignment pieces 21a, 31a, and 41a are not related to the case of plain paper P1, which is kept flat, as shown in FIG. 2, but not as flat as curl paper P2 (curl paper). If not, the width of the fringe P2 is changed.

As shown in FIG. 2, one end of the culvert P2 is bent and raised to come into contact with the alignment member 40. The alignment member 40 is perpendicular to the inner surface of the spacer 40. Since it is attached and fixed, it does not cover the amount of bending of the rising cullet P2.

In other words, since the culvert P2 becomes shorter as it is bent than the length when it is flat, such a change in length cannot be compensated by the conventional alignment member 40, and thus, the gap adjusting plate 20 and 30 are eventually reduced. There was a problem that the gap is generated within the area set by the (40) to be distorted during transfer, so that the printed state is not straight and is skewed.

In addition, the conventional alignment member 40 is attached to a higher than the maximum stack height of the paper, the above problems occur, in order to improve this, the alignment member 40 was lowered to the conveying position of the paper was attached. . In this case, when the paper is conveyed, the paper may not be properly transported by acting as a conveying load, and the debris of the alignment member 40 may fall due to the contact of the paper.

In addition, the alignment members (21) (31) (41) respectively attached to the inner surface of the gap adjusting plate (20) (30) (40) is used to cut in advance to a predetermined size, the hair formed on the cut edge portion Since the alignment pieces 21a, 31a and 41a in shape are also partially cut, a phenomenon occurs in which the alignment pieces 21a, 31a and 41a are separated from the alignment members 20, 30 and 40. Thereby, the separated pieces 21a, 31a and 41a were blown off and attached to a drum or the like during conveyance of the paper, resulting in a problem of poor printing.

Therefore, the present invention is designed to solve the conventional problems as described above, even if some of the paper loaded in the cassette is cultivated properly to compensate for the gap due to the reduction of the length of the fringe, and the alignment piece of the alignment member is separated It is an object of the present invention to provide a paper cassette for an image forming apparatus that is capable of alignment and image quality improvement in which the printing state is improved by preventing the ink from scattering.

The present invention for achieving the above object is a paper cassette for an image forming apparatus provided with a gap adjusting plate to support while moving in accordance with the width of the paper to be loaded, forming an inclined groove on the inner surface of the gap adjusting plate, It is a technical feature to attach an alignment member to the inclined surface of this inclined groove.

The circumferential surface of the alignment member is a structure in which the ultrasonic welding portion is formed so that the alignment piece is not separated.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The same components as in the prior art will be described with the same reference numerals and detailed description thereof will be omitted.

The present invention, as shown in Figure 4, is a structure that is provided with a gap adjusting plate 50 to support while moving in accordance with the width of the paper loaded in the paper cassette 10 for the image forming apparatus, the gap adjusting plate 50 Although only one is shown and described for convenience, it is provided in multiple numbers so that it may fit to the width | variety of a paper similarly to the conventional.

 Here, the present invention has a structure in which the inclined groove 51 is formed on the inner surface of the gap adjusting plate 50 and the alignment member 60 is attached to the inclined surface 51a of the inclined groove 51.

The peripheral surface of the alignment member 60 is a structure in which the ultrasonic welding unit 70 is formed so that the alignment piece 61 is not separated.

The obliquely attached alignment member 60 has a length d protruding from the vertical surface, preferably about 0.5 mm to 2 mm.

The present invention having such a configuration is made smoothly without any contact with the alignment member 60 during the transfer of paper, the transfer of plain paper (paper in a flat state) (P1), if the paper (curved paper) ( When P2) is conveyed, it comes into contact with the alignment member 60 while being lifted by the bent portion of the cullet P2. At this time, the entire width of the cullet (P2) is reduced in accordance with the lifting of the cullet (P2), and then a gap occurs in the gap adjusting plate 50, so that when the paper is conveyed, it is not conveyed straight, and the state is easy to be conveyed at an angle. do.

However, since the alignment member 60 in the present invention is attached obliquely, the alignment member 60 in the spacing control plate 50 by the cullet P2 compensates for the width of the cullet P2 reduced by the inclined distance d. The gap does not occur, so that the paper is not distorted at the time of conveyance, and can be conveyed normally.

In addition, the present invention is used to cut the alignment member 60 according to a predetermined standard, by pressing the alignment member 60 to meet a predetermined standard before the cutting process to form the ultrasonic welding portion (70). Therefore, when the ultrasonic welding unit 70 is cut by the boundary line, the alignment member 60 of the desired standard is provided and can be used.

When the alignment member 60 is cut, the ultrasonic welding unit 70 is formed to cut the portion, so that the alignment piece 61 of the alignment member 60 is not separated. Therefore, as the alignment pieces of the alignment member are separated and scattered as in the prior art, they can be attached to a developing drum or the like in the image forming apparatus so that the copy or print state is not deteriorated, and a good image quality can be maintained.

As described above, the present invention has a structure in which the alignment member is inclinedly attached to the gap adjusting plate installed in the cassette, so that even if the paper is loaded in the cassette and the width of the paper is changed, it is appropriately accommodated so that the alignment is not disturbed. By forming an ultrasonic fusion portion at the cut circumference of the alignment member, the alignment piece is separated and scattered by the cut portion, thereby having an effect of maintaining a good image quality without affecting the quality of the paper.

Although the present invention has been described in the present invention based on the accompanying drawings for convenience, it is obvious that various modifications and changes are possible within the scope of the technical idea of the present invention.

Claims (2)

In the paper cassette for an image forming apparatus provided with a gap adjusting plate for supporting while moving in accordance with the width of the paper to be loaded, Forming an inclined groove on the inner surface of the gap adjusting plate, the alignment member is attached to the inclined surface of the inclined groove, the paper cassette for image forming apparatus capable of improving the alignment and image quality. The method according to claim 1, The circumferential surface of the alignment member is a paper cassette for an image forming apparatus, characterized in that the ultrasonic fusion unit is formed so that the alignment piece is not separated.

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