KR200258634Y1 - Apparatus for feeding paper of multi functional machine - Google Patents

Abstract

The present invention relates to a paper feeder of a multifunction printer, and on one side of the main body, a plate-like document feeder on which a document is loaded for data transmission is rotatably installed, and a paper receiving portion is spaced a predetermined distance downward from the document feeder. The provided paper cassette is combined, and a cover portion extends downward to the surface of the paper cassette at the edge of the document feeder.

According to the present invention configured as described above, since the paper receiving portion of the paper cassette is cut off from the outside by the shape deformation of the document feeder, the cost is reduced, and the contamination of the paper is prevented.

Description

Paper feeder of MFP {APPARATUS FOR FEEDING PAPER OF MULTI FUNCTIONAL MACHINE}

The present invention relates to a paper feeder for a multifunction printer, and more particularly, to a paper feeder for a multifunction device that can block the paper receiving portion of the paper cassette from the outside by using an existing component.

In general, office equipment such as printers and facsimiles are developed with high performance in order to expand their own functions, and accordingly, more expensive products are being developed. On the other hand, by developing the printer and the facsimile used independently, a product that reduces the economic burden on the user is being produced, which is a multifunction device.

In more detail, the multifunction device will be described in detail, including a printing function for printing data input from a computer, as well as a scanning function for reading data of an original, a copying function for printing and copying data of a scanned original, and communication of the scanned data. A multifunction performing apparatus for performing a facsimile function for printing and outputting data transmitted or received through a line, comprising a printing apparatus, a scanning apparatus, a modem, and the like, for performing the above functions.

The recently developed multifunction device has a structure in which a device for performing a facsimile function and a device for performing a printer function are partitioned up and down inside the main body forming the exterior of the multifunction device. Referring to FIG. same.

The inside of the main body 1 which forms the external appearance of the multifunction machine is provided with the facsimile mode 10 and the printer mode 20 divided up and down, respectively.

The facsimile mode 10 is formed on the upper side of the main body 1, and the document transfer path 11 for guiding the transfer of an original (here, the original means a paper on which data is recorded) and the main body ( 1) is installed on one side of the plate-shaped document feeder 12, the document is loaded, the reading device 13 for reading the data of the document conveyed along the document transfer path 11, and the reading device 13 It consists of a white roller 14 for contacting the document, and a badge roller 15 for finally discharging the document passing through the reading apparatus 13 and the white roller 14 to the outside of the main body.

Then, the printer mode 20 is formed on the lower side of the inside of the main body 1, and the paper feed path 21 for guiding the conveyance of the paper (where the paper is in a state where no data is recorded on the printing surface); It is provided on the paper inlet side of the main body 1, and a data cassette 22 for stacking a plurality of sheets of paper, a conveying roller (not shown) for conveying the sheets, and an upper surface of the sheet conveyed by the conveying rollers A developing unit 23 for printing, a fixing unit 24 for fixing the image printed by the developing unit 23 to the paper, and a discharge roller 25 for discharging the finished paper to the outside of the main body 1. have.

In the facsimile mode 10 and the printer mode 20, a pickup roller 30 is employed to feed paper in each mode, and the originals and paper loaded in the document feeder 12 and the paper cassette 22 There are specifications for feeding by each pickup roller driven independently, and specifications for feeding originals and paper through a method of controlling the rotation of one pickup roller 30. Then, the friction pads 31 and 32 are brought into contact with the pickup roller 30 at a predetermined pressure to separate the original and the sheet into sheets by the frictional force with the pickup roller 30.

Referring to the operation state of the multifunction device configured as described above are as follows.

When the document is loaded on the document stacking plate 12 to transmit the document, the document presence sensor 40 detects this, and the control unit applies power to a driving motor (not shown) to rotate the pickup roller 30 forward. Let's go.

The pickup roller 30 separates the original into sheets by the frictional force with the friction pad 31 and picks it up and transfers it to the original entrance detection sensor 41. In this state, when the machine is operated for transmission, the start button is pressed. Then, the driving motor is driven again to transfer the document to the reading device 13 side.

The document passes between the reading device 13 and the white roller 14, and the reading device 13 reads the data of the document.

The document whose reading is completed is discharged to the outside of the apparatus by the discharge roller 15.

When the printer mode 20 is operated, the driving motor is rotated in reverse to rotate the pickup roller 30 in the reverse direction, and at the same time, the paper cassette 22 is moved to the pickup roller 30 side, and the pickup roller 30 is While rotating clockwise, the paper loaded in the paper cassette 22 is picked up and transported for a predetermined distance.

After the image is formed on the paper while passing through the developing unit 23, the image is fixed on the paper while passing through the fixing unit 24, and then discharged to the outside of the machine by the discharge roller 25.

According to the conventional multifunction apparatus configured as described above, since the original and the paper are picked up by one pickup roller 30, the space between the document feeder 12 and the paper cassette 22 is very narrow. At this time, the paper cassette 22 is always loaded with paper, but the cover is used, but when the cover is adopted in the paper feeder 22 disposed on the lower side due to space limitation, interference occurs with the upper document feeder 12. Since the cover cannot be employed, the paper loaded on the paper cassette 22 may fall or be contaminated.

In addition, due to space constraints, the installation work of the separate cover is very difficult and costs a lot of costs.

The present invention has been made to solve the above-mentioned problems. When picking documents and paper by one pickup roller, the paper loaded in the paper cassette is placed even if the document feeder and the paper cassette are arranged up and down with a narrow space. An object of the present invention is to provide a paper feeder for a multifunction apparatus, which can be used to prevent a drop and at the same time to cover the cover.

Another object of the present invention is to block the paper cassette from the outside through low cost and simple operation.

1 is a schematic view showing a system of a typical multifunction apparatus.

Figure 2 is a block diagram of a multifunction device applied to the embodiment according to the present invention.

3 is a perspective view of a document feeder applied to an embodiment according to the present invention.

<Description of the code used in the main part of the drawing>

1 Body 12: Document Feeder

12a: Cover part 12b, 22b: Alignment guide

22: paper cassette 22a: paper receptacle

30: pickup roller 30a: pickup roller rotation axis

In order to achieve the above object, the multipurpose feeder of the present invention has a plate-shaped document feeder which is installed on the document feeder side of the main body and on which a document is loaded for data transmission, and a predetermined distance downward from the document feeder. A paper feeder comprising: a paper cassette spaced apart and provided with a paper receiving portion; and a pickup roller for selectively picking up either the document feeder and the original or paper loaded on the paper cassette;

A cover portion extends downward in the edge portion of the document feeder so that the paper receiving portion of the paper cassette is cut off from the outside.

Preferably, the leading end of the document feeder is rotatably coupled to the pickup roller rotation shaft.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of a paper feeder of the multifunction apparatus according to the present invention will be described in detail.

Figure 2 is a schematic diagram of a multifunction machine to which the embodiment according to the present invention is applied, Figure 3 is a perspective view of the paper feeder applied to the embodiment according to the present invention. For convenience of description, the same member numbers are assigned to the same constituent members as in the prior art.

As shown in the paper feeding apparatus of the present invention, the paper feeder 12 and the plurality of sheets of paper on which one side of the document is placed on one side of the main body 1 of the multifunction paper cassette 22 are spaced apart from each other by a predetermined distance from each other. The sheets stacked on the document feeder 12 and the paper cassette 22 are arranged to be picked up by one pick-up roller 30.

Cover portions 12a having a predetermined length are formed integrally extending to the left and right and rear sides of the edge of the document feeder 12, and the lower end of the cover portion 12a extends to the surface of the paper cassette 22 to form a sheet of paper. The paper container 22a of the cassette 22 is blocked from the outside.

Then, both ends of the document feeder 12 are rotatably coupled to the pickup roller rotation shaft 30a.

In the document feeder 12 and the paper cassette 22, alignment guides 12b and 22b for aligning the document and the paper are provided so as to be slidable left and right, respectively.

Referring to the working state of the embodiment according to the present invention configured as described above are as follows.

In the initial state of the paper feeder of the present invention, the cover portion 12a of the document feeder 12 is wrapped up and to the side of the paper cassette 22, so that the paper receiving portion 22a is cut off from the outside.

On the other hand, after the originals are loaded in the document feeder 12 to transfer the originals, the alignment guides 12b are moved left and right to align the originals.

After that, the operation of the device is the same as in the prior art and will be omitted.

And, when the operation for loading the paper in the paper cassette 22 will be described, holding the document feeder 12 and lifting it upward, the document feeder 12 is rotated about the pickup roller rotary shaft 30a, The paper receiving portion 22a of the cassette 22 is opened.

In this manner, after storing the paper in the state in which the paper receiving portion 22a of the paper cassette 22 is opened, the alignment guide 22b is moved to align the paper.

Then, the document feeder 12 is rotated to the paper cassette 22 side to block the paper container 22a from the outside.

Therefore, the paper loaded on the paper loading table 22 is blocked by the cover 12a of the document feeder 12 from the outside, so that the paper does not fall or be contaminated by foreign matter as in the prior art.

And since the cover part 12a integrally formed in the document feeder 12 can be cut off from the outside, without providing a separate cover, the restriction of the installation is eliminated.

As described above, according to the paper feeding apparatus of the present invention, the paper loaded in the paper cassette does not fall or become contaminated, thereby improving the reliability of the product.

In addition, since the paper cassette is covered by the shape change of the existing document feeder, the work for installing the separate cover is eliminated, and the cost can be reduced.

Claims (2)

A sheet feeder on the plate feeder side of the main body, on which a document is loaded for data transmission, a paper cassette disposed at a predetermined distance downward from the document feeder and provided with a paper receiving portion, and the document feeder; A paper feeding device comprising a pickup roller for selectively picking up either a document or paper loaded in a paper cassette, And a cover portion extending downward from the edge portion of the document feeder to block the paper receiving portion of the paper cassette from the outside. The paper feeder of claim 1, wherein the leading end of the document feeder is rotatably coupled to the pickup roller rotation shaft.