JP2887591B2 - Paper feeder and recording device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper feeder for a recording apparatus such as a copying machine and the like in which a required number of paper feed cassettes accommodating sheets of different sizes can be added. And a storage device having the same. 2. Description of the Related Art Many conventional recording apparatuses, for example, relatively small copying machines, are provided with a plurality of paper feed cassettes b which can be inserted into a lower portion of a main body a as shown in FIG. When copying is performed on the paper c fed from the paper feed cassette b and the paper c of the required size is not in the paper feed cassette b, the copy is performed by replacing the paper feed cassette b prepared separately. I was However, in the above-described copying machine, since the sheet cassette b protrudes largely to the side of the main body a, much space is required to install the main body a. However, even if the body a itself is miniaturized, the effect of being able to be easily installed in a narrow place is impaired. In addition, since the number of sheet cassettes that can be mounted on the main body a is small, the sheet cassette b must be stored in another place, and there is a problem that a place for storing is required. Therefore, a paper feeder which does not require a storage space for the paper feed cassette by multiplying the paper feed cassette below the main body has been known. When the paper feed cassette is provided on the lower side of the main body, it is necessary to connect the main body and the paper feed cassette with a connector or the like after mounting the paper feed cassette on the main body, and the connectors are externally connected. Connection work is troublesome, and the connector and the like are damaged. The present invention has been made for the purpose of improving the above-mentioned conventional problems. According to a first aspect of the present invention, there is provided a paper feed cassette which accommodates sheets and is provided at a lower stage with respect to an apparatus main body, and a paper cassette which is accommodated in the paper feed cassette and which is provided in the apparatus main body. And a paper supply means for feeding the paper to the paper cassette, wherein the paper cassette is lower than the paper cassette.
Guide for guiding to said apparatus main body is provided to the sheet feeding cassettes integrally so as to allow the supply of paper from the stage <br/> Rutotomoni, in the lower part of the apparatus main body overlapping the paper feed cassette A paper feeding device is constituted by the driving force transmission means which forms a transmission path between the paper supply means and the driving force supply means on the apparatus main body side by being mounted. According to a second aspect of the present invention, there is provided a paper feed cassette which accommodates paper and is provided at a lower stage with respect to the apparatus main body, a paper supply means which feeds the paper accommodated in the paper feed cassette toward the apparatus main body, Driving force supply hand provided on the device main body
A paper feeder having a connector connected to a stage , wherein the paper feed cassette guides the apparatus main body so as to enable paper to be supplied from a lower side of the paper feed cassette. Is provided integrally with the paper feed cassette, and the one connector is provided with the other paper feed unit provided on the lower tier by overlapping and mounting the lower paper feed unit .
A driving force supply unit connected to a connector for driving the apparatus main body;
To form a transmission path between the paper supply means and the lower paper supply means .
It is a sheet feeding device configured as described above. A third aspect of the present invention relates to an apparatus main body for performing image recording on paper, a paper feed cassette for housing the paper and provided at a lower stage with respect to the apparatus main body, and a paper housed in the paper feed cassette. And a paper supply means for feeding paper toward the apparatus main body, wherein the paper feed cassette guides the apparatus main body so as to be able to supply paper from a lower stage side than the paper feed cassette. guide between the sheet supply means and the apparatus main body side of the drive force supply means by the sheet feeding cassette and integrally provided Rutotomoni, overlapping the paper feed cassette is mounted in the lower part of the device body pathway And a driving force transmitting means for forming a recording device. According to a fourth aspect of the present invention, there is provided an apparatus main body for performing image recording on paper, a paper supply cassette for accommodating the paper and provided at a lower stage with respect to the apparatus main body, and a paper accommodating in the paper supply cassette. And a driving force supply unit provided in the apparatus main body.
A recording apparatus having one connector and being continued, and the paper feed cassette, guides the sheet to guide into the apparatus main body so as to enable the supply of paper from the lower side of the sheet feeding cassettes It is provided integrally with the paper cassette,
The one connector is connected to the other connector provided on the lower side by stacking and mounting the lower sheet supply means.
Connected to the driving force supply means of the apparatus main body.
So as to form a transmission path between the paper supply means of the lower stage side
It is a recording device configured . According to the present invention, the paper feed cassettes or the respective paper feed cassettes are stacked and mounted on the lower portion of the apparatus main body of the recording apparatus, whereby the driving force transmitting means is connected to the driving force supply means on the apparatus main body side. since the transmission path is adapted to be formed to be, is that Do not required newly connected to form a transmission path after mounting. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to FIGS. 1, 2, 3, 4, 5 and 6.
In FIG. 1, reference numeral 1 denotes a main body of a recording apparatus, which performs image recording on a sheet, for example, a main body of a copying machine, in which a photosensitive member 2, a developing device 3, a transfer device 4, a fixing device 5, and a cleaning device 6 are provided. And various devices necessary for copying. Reference numeral 7 denotes a plurality of paper feed cassettes which can be mounted in a state of being stacked on the lower part of the copying machine main body 1, for example, a first paper feeding cassette below the copying machine main body 1 and a lower paper feeding cassette below the same. The paper feed cassette 7 is provided below the copier main body 1 by being provided so as to be a second paper feed cassette and having a peripheral box 7g having a flat box shape substantially the same size as the copier main body 1. In the state where the sheet 8 is mounted on the side, substantially the entire outer periphery of the lower side of the apparatus is constituted by the outer wall 7g of the sheet cassette 7, and the sheet accommodating section 7a capable of accommodating sheets 8 of different sizes therein. Are provided so as to be freely inserted and removed. A bottom plate 7b urged upward by a spring 9 is provided at a bottom portion on one end side of the sheet storage portion 7a. It is configured to be pressed from below onto a paper feed roll 10 provided for each paper feed cassette 7 from above. The paper supply roll 10 is a paper supply unit for supplying the paper 8 for sending the paper 8 toward the copying machine main body 1, and is a paper supply roll such as a motor provided on a side portion of each paper supply cassette 7. The rotation unit 11 is driven to rotate via a gear 12, and the paper supply roll rotation unit 11 mounts the paper supply cassettes 7 on the lower side of the copying machine main body 1 .
As a result, a transmission path is formed between the copying machine main body 1 and the paper feed cassette 7 by the driving force transmitting means connected to the driving force supply means (not shown) on the copying machine main body 1 side. I have. The driving force transmitting means is arranged such that the paper feed roll rotating means 11 overlaps the paper feed cassettes 7 and
One of the connectors 13 connected by being attached to
13a is connected via a lead wire 14, and the other 13b of the connector 13 is connected via a lead 15 to one side 16a of a connector 16 on the copier body 1 side. making it a driving force supplied from the driving force supply means to supply to said feed roll rotating means 11
You . On the other hand, the paper storage section 7 of the paper feed cassette 7
A conical snubber 17 is provided at the side end of the paper feed roll 10 for the paper 8 stored in the paper feed roll 1.
0 to prevent the paper 8 from being double-fed, and to prevent the paper 8 from being fed multiple times. A guide 7h for guiding the paper 8 to the copying machine main body 1 is integrally provided on the outer wall portion 7g on the sending-out side.
Is a concave arcuate guide surface 7c for guiding the leading end of the paper 8 fed by the paper feed roll 10 upward, and the lower paper feed roll 7 fed from the lower paper feed cassette 7. 1
0, and a paper path 7d formed in a slit shape for passing the paper 8 sent out by the guide surface 7.
c, the paper 8 stored in the paper storage portion 7a on the upstream side in the paper supply direction is guided and conveyed to the copying machine main body 1, and the paper feed cassette is provided in the paper path 7d. When the required number of sheets 7 are stacked, a sheet conveying path communicating from the sheet cassette 7 to the copying machine body 1 is formed, and the sheet is fed by the sheet feed roll 10 of the lower sheet cassette 7. The sheet 8 is guided and conveyed to the copying machine main body 1 through the sheet path 7d formed on the outer wall 7g of the upper sheet feeding cassette 7 on the sheet feeding side of the sheet 8. A handle 7e is formed at the end of the sheet storage section 7a opposite to the sheet feeding side by recessing a part of the sheet storage section 7a, and the sheet storage section 7a is formed by the handle 7e. It can be pulled out. Also, the sheet storage unit 7
When a is inserted into the sheet cassette 7, the end of the sheet accommodating portion 7a is flush with the sheet cassette 7, and forms a part of the outer wall 7g of the sheet cassette 7. As a result, the end of the sheet storage portion 7a forming a part of the outer wall portion 7g of the sheet cassette 7 does not protrude from the outer wall of the apparatus main body. On the other hand, the paper 8 fed from the paper feed cassette 7 is transported by a transport roll 18 provided in the copying machine main body 1.
To the photoconductor 2 and the transfer device 4 via a registration roll 20 provided in the conveyance path 19.
It is to be carried in between. In the drawing, reference numeral 21 denotes a paper insertion slot for manual copying, and reference numeral 22 denotes a moisture-proof film such as a conductive mylar provided at a connection portion between the copying machine main body 1 and the paper path 7d of the uppermost paper cassette 7. Next, the operation will be described. In use, a required number of paper feed cassettes 7 each containing paper 8 having a different size in a paper storage section 7a are prepared and stacked on the lower side of the copying machine main body 1. The driving force supply means on the copying machine main body 1 side and the paper feed roll rotating means 11 of each paper cassette 7 are connected via connectors 13 and 16 and lead wires 14 and 15. Next, when a paper size is selected by a selecting means (not shown) on the copying machine main body 1 side and the copy switch 23 is pressed to start copying, the paper cassette 7 containing the paper 8 of the selected size is pressed. The driving force is supplied from the copying machine main body 1 to the paper feed roll rotating means 11, and the paper feed roll 10 rotates to feed the paper 8. Paper 8 fed
Is sent out to the transport path 19 by the transport roll 18 and reaches the registration roll 20 after the paper detection switch 24 provided in the transport path 19 is turned on. When the paper detection switch 24 is turned on, the photoconductor 2 is rotated, and copying is performed on the paper 8 in a normal copying process. Then, the copy-completed sheet 8 is discharged to a discharge tray 25 provided on the side of the copying machine main body 1. In the above operation, since the photosensitive member 2 and the sheet 8 are synchronized by a signal from the sheet detection switch 24 provided in the middle of the transport path 19, the sheet cassettes 7 stacked in a plurality of stages are provided. The copying timing does not shift even if there is a time difference between each stage and the time when the paper 8 reaches the copying machine body 1. FIG. 7 shows another embodiment in which the sheet 8 is separated without using a cone snubber. May be retracted by reversing the sheet feeding direction, the sheet 8 may be discarded by abutting against the rear wall 7f of the sheet accommodating section 7a, and then the sheet feeding roll 10 may be rotated forward to feed the sheet. . With this configuration, the sheet cassette can be mounted and used in a state of being stacked on the lower portion of the apparatus main body.
The apparatus main body can be easily installed even in a narrow place, and there is no need to separately store the paper feed cassette. Since the required number of paper feed cassettes can be added in the vertical direction, a plurality of paper feed cassettes can be installed in a small space, so that the apparatus itself can be reduced in size and space. Further, since a paper path for passing the paper fed into the paper cassette is provided, the paper in each paper cassette is supplied to the paper cassette without providing a paper transport path outside the paper cassette. The paper can be fed to the apparatus main body in the inside, and this also makes it possible to reduce the size of the entire apparatus. Further, since the sheet passage is formed on the outer wall of the sheet feeding side of the sheet feeding cassette, the size of the sheet feeding cassette can be further reduced, and the size of the entire apparatus can be further reduced. Also, by preventing the outer wall of the paper cassette and the paper container provided in the paper cassette from protruding from the outer wall of the apparatus main body, the size of the apparatus itself can be reduced, and the outer wall of the paper cassette can be improved. By eliminating the protruding portion in the section, it is possible to eliminate the problem that the paper cassette is damaged by collision of a person or an object with the portion, and it is possible to make the product excellent in aesthetic appearance. [0024] Moreover, by mounting the lower side of the device the copier body is a main body of the recording apparatus overlapping the sheet feeding cassette or the paper feed cassette, and more copying machine main body side of the drive force supply means to the driving force transmitting means Since the transmission path connected to the communication path is formed, connection for forming a new transmission path after mounting is unnecessary, and connection is not forgotten. By not protruding from the outer wall of the device, the size and space of the device itself can be reduced, the product can be made excellent in aesthetics, and the trouble such as breakage of the transmission path can be prevented. As the guide for guiding the paper to the apparatus main body is provided integrally with the paper feed cassette, the size of the paper feed cassette can be reduced. Therefore, the size of the entire device can be reduced, and the device can be easily installed in a narrow place and the space can be effectively used. Moreover, by stacking the sheet cassettes or the respective sheet cassettes on the lower part of the apparatus main body of the recording apparatus, a transmission path connected to the driving force supply means on the apparatus main body side by the driving force transmitting means is formed. The connection for forming a new transmission path after mounting is not required.
You.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a copying machine showing an embodiment of the present invention. FIG. 2 is a sectional view of a copying machine showing one embodiment of the present invention. FIG. 3 is a cross-sectional view of a sheet feeding cassette. FIG. 4 is an explanatory diagram showing a connection state of a copying machine main body and a paper feed cassette; FIG. 5 is an enlarged view inside a V circle in FIG. 2; FIG. 6 is a perspective view of a use state. FIG. 7 is an explanatory view showing another embodiment of the sheet separating means. FIG. 8 is a conventional explanatory diagram. [Description of Signs] 1 ... Copier body 7 ... Paper feed cassette 7a ... Paper accommodating section 7d ... Paper path 7g ... Outer wall section 8 ... Paper 10 ... Paper feed roll 11 ... Drive source

Claims (1)

(57) [Claims] A paper feeder, comprising: a paper feed cassette that stores paper and is provided at a lower stage with respect to the apparatus main body; and a paper supply unit that sends out the paper stored in the paper feed cassette toward the apparatus main body. The paper feed cassette is provided integrally with the paper feed cassette, and a guide for guiding the paper to the apparatus main body so that paper can be supplied from a lower stage than the paper feed cassette is provided. A sheet feeding device, comprising: a driving force transmitting unit that is mounted on a lower stage of the apparatus main body to form a transmission path between the sheet supplying unit and a driving force supplying unit on the apparatus main body side. 2. A paper feed cassette which accommodates paper and is provided at a lower stage with respect to the apparatus main body; a paper supply means which feeds the paper accommodated in the paper feed cassette toward the apparatus main body; and a driving force provided to the apparatus main body Connected with supply means
And a connector that guides the paper feed cassette to the apparatus main body so that paper can be supplied from a lower stage than the paper feed cassette. The one connector is provided integrally with the other connector provided on the lower side by stacking and mounting the lower sheet supply means.
Connected to the driving force supply means of the apparatus main body.
So as to form a transmission path between the paper supply means of the lower stage side
A sheet feeding device. 3. An apparatus main body for performing image recording on paper, a paper cassette for housing the paper and provided at a lower stage with respect to the apparatus main body, and a paper for feeding the paper housed in the paper feed cassette toward the apparatus main body And a guide that guides the paper feed cassette to the apparatus main body so that paper can be supplied from a lower stage than the paper feed cassette. And a driving force transmission unit that forms a transmission path between the paper supply unit and the driving force supply unit on the apparatus main body side by stacking the paper feed cassettes and mounting the lower part of the apparatus main body. A recording device comprising: 4. An apparatus main body for performing image recording on paper, a paper cassette for housing the paper and provided at a lower stage with respect to the apparatus main body, and a paper for feeding the paper housed in the paper feed cassette toward the apparatus main body Connected to a supply unit and a driving force supply unit provided in the apparatus main body.
A recording apparatus having one connector and, the, the paper feed cassette, a guide for guiding to said apparatus main body so as to enable the supply of paper from the lower side of the sheet feeding cassette and the sheet feeding cassettes The one connector is provided integrally with the other connector provided on the lower side by stacking and mounting the lower sheet supply means.
Connected to the driving force supply means of the apparatus main body.
So as to form a transmission path between the paper supply means of the lower stage side
Configured that, recording apparatus characterized.