KR100189762B1 - Automatic sheet feeder - Google Patents

Abstract

The present invention is to supply different types of paper by using a single feeder to the multifunction device, and more particularly, in the multifunction device performing a scanner and a printer function, the image is formed by the document and the printer to be scanned by the scanner An apparatus capable of feeding paper into a single paper feeder, the apparatus comprising: a printer paper stack for loading paper necessary for performing a printer function, a printer paper feed roller for feeding paper loaded in the printer paper stack, and A scanning document stacker for loading paper necessary for performing a scanning function which can be rotated at an angle with the rotation axis of the printer paper feed roller as a hinge, and a scanning document feed roller for feeding the documents loaded in the scanning document stacker. It is characterized by.

Description

Multiple Automatic Document Feeder for Originals and Printed Paper

The present invention is to supply different types of paper by using a single feeder to the multifunction device, and more specifically, in a multifunction device that performs a scanner function and a printer function, different forms are formed by the document and the printer to be scanned by the scanner It is for supplying a sheet of paper using one paper feeder.

In recent years, office automation (OA) devices such as printers, scanners, and fax machines have been widely used. Each of these office automation equipment has been developed a higher-performance product to expand its unique function, thereby increasing the production cost of the product, increasing the economic burden on the consumer. For this reason, as the office automation equipment used independently of each other is integrated into one complex device, it is possible to solve the economic burden on the consumer. Such complex devices are commonly referred to as 'composite devices' or 'compositors'.

In general, since the multifunction apparatus includes a separate scanner and an upper printer, the multifunction apparatus can simultaneously perform a function of scanning data recorded on an original and printing the scanned data on another sheet.

Therefore, such a composite apparatus is provided with a drive motor for document transfer, a carriage motor for printing the reciprocating motion of an image forming printer head, and a printing paper feed motor.

In addition, the document can be read through an intermediate image reduction mirror using a fixed contact image sensor (CIS) or a fixed charge coupled device (CCD) having an array type for reading the original. The data recorded in the document was read in such a manner as to convert the data recorded in the digital data into digital data.

The conventional composite device is briefly described as follows.

Conventional composite devices can be divided into a composite device in an approximately array form and a composite device in a shuttle method.

In this case, the array-type compound apparatus is driven by scanning data recorded in the document on a line-by-line basis while a scanner having a size equal to or larger than the width of the document is fixedly installed at a predetermined position in the compound apparatus. .

In addition, the shuttle-type compound device is configured such that the print head and the scanner reciprocate according to different driving sources, so that the scanner is placed in the transport direction as the corresponding line to be scanned is set to the position where the scanner is installed. While reciprocating in a direction orthogonal with respect to the drive, it is driven by scanning the data recorded in the corresponding line.

1 is a block diagram showing the configuration of a conventional composite device comprising a shuttle-type scanner and an inkjet printer.

The shuttle scanner 1 and the printer cartridge 2 are mounted in a carrier (not shown), and the carrier is guided to the guide shaft 4 to the left and right by a timing belt driven by the drive motor 3 to be moved. do.

2 is a side view for showing a paper feeder of a composite apparatus in which a conventional shuttle scanner and inkjet printer are combined.

A paper feeder is provided for supplying a scanning document or printing paper to a carrier in which the scanner 1 and the printer cartridge 2 are housed. The paper feeding device includes a paper case 5 which is installed to be inclined with respect to the ground, a paper plate 7 seated on the inner surface of the paper case 5 and being loaded by a spring 6 so as to load paper on the upper surface thereof; It consists of an automatic sheet feeding roller 9 for feeding the sheet of paper 8 loaded on the plate 7 into the inside of the multifunction apparatus.

In the conventional general paper feeding method according to the above-described configuration, when the multifunction apparatus performs the printing function, the paper feeding device 8 is stored in the paper feeding device in the paper feeding device, and the paper is rotated by the feeding roller 9. Is fed into the equipment. In addition, the rotation of the feed roller 10, friction roller 11, discharge roller 12, pinch roller 13 is moved in the direction of the arrow shown. In this way, when the paper 8 is being fed to perform the printing function, in order to switch to the scanning function, the loaded paper must be separated from the main body of the multifunction device and the original to be scanned manually must be fed.

As described above, in the conventional multifunction printer, the paper feeder needs to be replaced manually in order to feed each function of the multifunction device. In the case of performing the scanning function, it is inconvenient to manually feed each original. .

The present invention has been made in view of the above-mentioned problems, and in the multifunction apparatus, especially a multifunction apparatus performing a shuttle-type scanner and an inkjet printer function, a document to be scanned when performing a scanning function, and the above-mentioned green paper printer paper when performing a printing function It is to provide a paper feeder to be able to feed using a single device.

Further, the present invention is not limited to the apparatus for supplying paper to the multifunction apparatus as described above, but to provide an apparatus for supplying different paper to one paper feed inlet.

1 is a configuration diagram showing a configuration in which a shuttle scanner and an inkjet printer are integrated in a conventional multifunction apparatus.

2 is a cross-sectional view illustrating a paper feeding apparatus of a multifunction printer in which a conventional shuttle scanner and an inkjet printer are combined.

3 is a state diagram illustrating a state in which a paper feeder of a multifunction apparatus for performing a printing function and a scanning function for feeding a printer paper in a printer paper stacker according to an embodiment of the present invention.

4 is a state diagram for illustrating a state in which a paper feeder of a multifunction apparatus performing a printing function and a scanning function, which feeds a document contained in a scanning document, according to an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

101: paper 103: first sheet

105: first feed roller 109: pressing portion

110: second paper feed roller 111: timing belt

112: rubber pad 113: guide plate

116: detection sensor 117: feed roller

118: friction roller

In order to achieve the above object, the present invention provides a paper feeder for feeding different paper through one paper feed inlet,

Rotation of the first loading tray for loading the printer paper necessary for performing the printer function, the first paper feed roller for feeding the paper loaded in the first loading box, and the rotation axis of the first paper feed roller as a hinge And a second paper feed roller for loading paper necessary for performing a scanning function, and a second paper feed roller for feeding paper loaded in the second paper stack.

Features of the present invention as described above will be described in detail according to the accompanying drawings.

FIG. 3 is a state diagram illustrating a state in which a paper feeder of a multifunction apparatus performing a printing function and a scanning function, which feeds a printer paper in a first loading box, is an embodiment of the present invention.

4 is a state diagram illustrating a state in which a paper feeder of a multifunction apparatus performing a printing function and a scanning function, which feeds a document in a second stacking box, according to an embodiment of the present invention.

The first stacking box on which the printer paper 101 is stacked includes a lower case 102, a first paper feeding plate 103 on which the printer paper is placed, and a lower case 102 and a first paper feeding plate 103. In the meantime, it is installed below the paper feed roller 105 for pushing the paper into the multifunction device to provide elastic force so that the first paper feed plate 103 and the first paper feed roller 105 are in close contact with each other. A second loading box in which a document for reading is loaded is installed around the rotating shaft 106 of the first paper feed roller 105 so as to be rotated by a rotating means (not shown).

The second stacker has a second paper feed plate 108 for placing the document 107 and a pressing part 109 bent downward at the front end portion of the second paper feed plate, so that the document 107 of the second stacker is formed. Press the first paper feed plate 103 so that the paper feed roller 105 and the first paper feed plate are spaced apart from each other, and do not allow the paper placed on the first paper feed plate 103 to flow down. .

The second paper feed roller 110 is installed on the upper portion of the pressing portion 109, and the second paper feed roller 110 and the first paper feed roller 105 are rotatable and interlockable with the time belt 111. The same effect can be obtained by using idle gear instead of time belt.

In the lower part of the second paper feed roller 110, a rubber pad 112 for automatically separating the original from the original paper 107 and the second paper feed roller 110 is installed, and the second paper feed roller 110 and the rubber pad 112 are installed. The guide plate 113 for guiding the manuscript 107 passed through the lamella through the lower part of the first paper feed roller 105 is provided.

In addition, the upper cover 114 is formed on the upper side and the front end of the second stacker, and the first cover roller 105 and the second feed roller 110 are protected by the upper cover 114 from the external environment. The back of the upper cover 114 is curved inward, the end of the curved portion is located at the end of the second paper plate 108 and is spaced apart from the second paper plate 108 so that the document 108 through the gap Induce to be transported.

In addition, the guide rubber 112 has elasticity by the coil spring 115 between the guide rubber 112 and the pressing part 109, so that the document 107 is the guide rubber 112 and the second paper feed roller 110. Be in close contact with. The coil spring 115 may be used as a leaf spring.

In addition, a detection sensor 116 is installed at a predetermined position of the second stacker to detect whether or not the document 107 is loaded in the second stacker.

Hereinafter, the operation of the present invention will be described with reference to the accompanying drawings.

First, in order to feed the paper 101 contained in the first stacker, the second stacker is rotated by a predetermined angle θ ° with the first stacker with the rotation axis of the first feed roller 105 as a hinge. At this time, the second paper feed roller 110 is separated from the rotation of the motor by a clutch (not shown), and is rotated by the time belt 111 driven by the first paper feed roller 105. The paper 101 placed on the first paper feed plate 103 is conveyed forward by the first paper feed roller 105, and is conveyed in the direction of the arrow by the rotation of the feed roller 117 and the friction roller 118. Are fed into. When the document is loaded in the second stacker while the paper 101 is being loaded, the detection sensor 116 detects this and operates the rotation driving means (not shown) to rotate the second stacker so that the pressing unit 109 By pressing the first paper feed plate 103, the first paper feed roller 105 and the first paper feed plate 103 are separated from each other. At this time, the first paper feed roller 105 is separated from the motor by the clutch and loses its own rotational force, but the second paper feed roller 110 is connected to the motor by the clutch operation to rotate and thus the time belt connecting two rollers. 111).

The document 107 lying on the upper side of the second paper feed plate 108 in the second stacker passes between the second paper feed roller 110 and the rubber pad 112 by the rotation of the second paper feed roller 110. By 113, the gap formed between the first paper feed roller 105 and the first paper feed plate 103 is exited. The subsequent operation is the same as the discharge process of the paper loaded in the first loading box.

According to the configuration and operation of the bar has a configuration that can feed the paper of different uses through a single inlet can eliminate the inconvenience of replacing the paper and the original according to the intended use, and joint use of parts It can be compact and manufacturing cost can be reduced. In addition, since the second loading bin is rotated and variable, the operation is easy when loading the paper in the first loading bin, when replacing or when feeding the sheet manually.

Claims (11)

A paper feeder for automatically feeding different sheets of paper through one paper feed inlet, the apparatus comprising: a first stacking box for loading paper necessary for performing a printing function, and a first stacking paper for loading paper loaded in the first stacking box A paper feed roller, which is rotatable at an angle with the rotation axis of the first paper feed roller as a hinge, is a second stacking box for loading paper necessary to perform a scanning function, and a second stacking paper for feeding paper loaded in the second stacking box. A paper feeder according to claim 1, further comprising a paper feed roller. According to claim 1, wherein the first stacking box is accommodated in the lower case, the lower case and the paper is loaded on the upper surface and the paper sheet is installed between the lower case and the first paper feed plate is the first feed plate is Feeder of the multifunction apparatus comprising a coil spring to be elastically supported. 2. The paper feeder of claim 1, wherein the second stacker is conveyed to a second feed plate for loading paper and a front end of the second feed plate, and is bent downward so that the first paper feeder is in operation during the feeding of the paper of the second stacker. And a pressing portion for pressing the plate so that the first paper feed roller and the first paper feed plate are spaced apart from each other. The paper feeder according to any one of claims 1 to 3, wherein the first paper feed roller and the second paper feed roller are rotationally interlocked with the timing belt. The paper feeder according to any one of claims 1 to 3, wherein the first paper feed roller and the second paper feed roller are rotated by an idle gear. The paper feeder according to any one of claims 1 to 3, wherein a lower portion of the second paper feed roller is provided with a rubber pad for automatically separating the original from the bottom of the second paper feed roller. 3. The paper feed machine of claim 2, wherein an upper cover is formed at an upper surface and a front end of the second loading box, and the first paper feed roller and the second paper feed roller are protected from an external environment by the top cover. Device. The method of claim 7, wherein the back of the upper cover is curved inwards, the end of the curved portion is located at the end of the second paper feed plate and is spaced apart from the second paper feed plate to convey the paper through the gap. Paper feeder of the multifunction machine, characterized in that. 7. The paper feeder according to claim 6, wherein the rubber pad has elasticity by a coil spring between the rubber pad and the pressing part so that a sheet of paper adheres between the guide rubber and the second paper feed roller. . 7. The paper feeder according to claim 6, wherein the rubber pad has elasticity by the leaf spring between the rubber pad and the pressing part, and the paper adheres between the guide rubber and the second paper feed roller. . The paper feeder according to any one of claims 1 to 3, further comprising a sensor for sensing whether paper is loaded in the second stacker at a predetermined position of the second stacker.