JPH0425711Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention feeds and sets a copy original on the original setting surface of a copying machine, and after the copying process is completed, the original is turned over and placed on the original setting surface again. The present invention relates to a copy document feeding device that feeds a document, copies the back side of the document, and then stores the document in a discharge stacker.

[Conventional technology]

Generally, when this type of device automatically feeds and ejects copied documents, if the order of the documents fed into the device and the order of the documents ejected from the device are different, the user will have to change the order of the documents after copying is complete. It is very troublesome to have to make adjustments.

However, in the case of a feeding device that reverses the original and sends it to the set side, two-sided originals, which copy the front and back sides of the original in a series, and one-sided copies, which copy only the front side of the original, one after the other, are used when the original is stored in the paper stacker. The order of the documents is reversed, and in either case, the user must reorder the manuscript.

In other words, a document is fed into the apparatus with the front side facing the set surface, and after the front side is copied, it is reversed, the back side is directed toward the set surface, and after being copied, it is discharged into the paper discharge stacker.

Therefore, when such a device is used to copy only one side of an original, and when it is used to copy both sides of an original, the originals are ejected to the stacker with the front and back facing in the opposite direction, making it necessary to adjust the order of one of the originals. There must be.

[Problem that the invention attempts to solve]

Conventionally, this document has to be revised, which forces the user to perform troublesome work, and this inconvenience is particularly noticeable in devices that prepare a series of documents for storage in the device and automatically separate and feed them one by one. It was hot.

As an example of a means to solve this problem,
There is a device described in Publication No. 6231, in which the paper feed stacker also serves as the paper discharge stacker, and the reversing path for reversing the document front to back draws a predetermined loop on the document set surface. is formed. As a result, devices have become extremely large, and even when making single-sided copies, paper is ejected through a reversing path in a switch-back manner.
The drawbacks were that copying took a long time and the manuscript could be damaged.

In view of the above points, the present invention stores the originals in the paper ejection stacker so that they advance straight in a predetermined order both when making single-sided and double-sided copies of originals, eliminating the need to change the order of the originals after copying. In addition, the main object of the present invention is to provide a copy document feeding device that does not require the preparation of a plurality of paper stackers and can make the entire device compact.

[Means for solving problems]

That is, the copy document feeding device of this invention is provided with a feeding stacker and a paper ejecting stacker on both sides of the document setting surface, and an inverting section is interposed between the document setting surface and the paper ejecting stacker. In a copying document feeding device, a document fed from a paper stacker to a document setting surface by a conveyance means can be reversed from front to back in a reversing section and then fed to the document setting surface again. In the mode for copying one side of a document, there is a paper ejection path that advances the document almost straight and leads it to a paper ejection stacker equipped with a first ejection port. a reversing path for reversing the document and guiding it to the document set surface again; and a first reversing path for reversing the document, which has been reversed and fed to the document set surface again, at the reversing section, and then causing it to travel almost straight and guiding it to the sheet discharge stacker. The second one placed above the outlet of
The invention is characterized in that a paper ejection path is formed, each having a paper ejection port.

〔Example〕

The configuration will be described in detail below based on one embodiment shown in the drawings.

Reference numeral 2 denotes a document setting surface of the main body of the copying machine, which has a normal copying optical system built therein, and a conveying means 1 is mounted on this setting surface 2. Various types of conveyance means 1 can be used, such as a belt, a conveyance roller, electrostatic adsorption conveyance, and vacuum conveyance. A belt 10 feeds the original along the original setting surface 1. Reference numeral 11 denotes a paper feed stacker, which separates the stored originals one by one by a separating means 12 and feeds them to the conveying means 1. The one shown in the figure is configured so that the first page of the document is stored facing downward in the paper feed stacker 11, and is fed out one by one by the separating means 12. In this state, the document is stacked in the paper discharge stacker ( (explained later), the page order will not be messed up.

On the side facing the paper feed stacker 11 of the conveyance means 1, a reversing section for reversing the original is constituted by an original reversing path 4, a sheet discharging path 6, and a sheet discharging path 7.

The document reversing path 4 includes a reversing roller 4a connected to a drive motor together with the conveyance means 1, and a guide 4b surrounding the reversing roller 4a. Paper ejection path 6
In this case, the document is sent out from the conveyance means 1 to a discharge stacker 5 provided adjacent to the reversing path 4 through the first ejection port 6' without passing through the reversing path 4. There is. In addition, the paper ejecting path 7 for the reversed original is used to reverse the original in the reversing path 4 and retransmit the back side to the document setting surface 2. The sheet is guided almost straight from the exit 7' to the sheet discharge stacker 5.

Further, the reversing path 4 includes the reversing roller 4.
Pinch roller (driven roller) 13 pressed against a,
14 is attached, and a circulation path 15 for two originals is connected between the reversing roller 4a and the conveying means 1.

In the paper ejection path 6, a path switching piece 16 for preventing the document from being sent to the reversing path 4 is operated by an operating solenoid (not shown) to switch between double-sided copy and single-sided copy originals. The paper ejection path 6 is sometimes closed, and the reversing path 4 is closed during one-sided copying. Further, in the paper discharge path 7, the original with the front side reversed is placed in the circulation path 15.
An auxiliary path 17 is extended to prevent the circulation path from entering, and a path switching piece 18 is connected to an operating solenoid (not shown) between the circulation path 15 and the auxiliary path 17 in the same manner as described above. It is provided.

Although this auxiliary path 17 is not necessary if the circulation path 15 is formed longer than the length of the document, the one shown in the drawing is specifically provided to make the entire apparatus compact.

19 is a flexible guide piece provided between the reversing path 4 and the paper ejection path 7.

Next, the operation will be explained according to FIG. 2. First, when one-sided originals are to be copied in a series, the originals prepared on the paper feed stacker 11 are fed out to the conveyance means 1 in sequence from the first page, and the originals are set. Side 2
Set the feed on top and copy.

After the copying process is completed, the conveying means 1 is driven again to eject the original on the original setting surface 2. Then, this document passes through the circulation path 15 in the reversing section as shown in FIG. 2A, and reaches the paper discharge path 6. At this time, the path switching piece 16 between the paper ejection path 6 and the reversing path 4 is in a position where the reversing path 4 is blocked.

The documents from the paper discharge path 6 advance almost straight from the first discharge port 6' and are sequentially stored in the paper discharge stacker 5, and the order of the documents is the order in which they are prepared in the paper feed stacker 11.

Next, in the case of double-sided copying, the original on the original setting surface 2 enters the reversing path 4 via the circulation path 15.
At this time, simultaneously with the switching of the double-sided copy mode, the path switching piece 16 closes off the paper discharge path 6 as shown in FIG. 2B. The document that has reached the reversal path 4 is transferred to the auxiliary path 17.
is blocked by the path switching piece 16, so that it enters between the conveying means 1 and the document setting surface 2 via the circulation path 15.

Next, the conveying means 1 is reversely rotated to feed the original in the direction of the arrow in FIG.

After copying the back side of the original, the conveying means 1 is started in the direction shown in FIG.

That is, after copying the back side of the original, the path switching piece of the auxiliary path 17 is deflected in the direction of blocking the circulation path 15 as shown in Figure C, and the original is reversed from the back side to the front side and transferred into the auxiliary path 17. enter.

Next, when the reversing roller 4a is reversed counterclockwise, the original in the auxiliary path 17 is guided by the flexible guide 19, passes through the paper ejection path 7, and advances almost straight from the second ejection port 7' to the paper ejection stacker 5. stored inside.

Since the originals are corrected in the same front-to-back direction as they were stored in the paper feed stacker 11 and stored sequentially, there is no need to align the pages.

Further, although the illustrated one stores a series of documents in advance in the paper feed stacker 11, it may be one in which the documents are manually fed into the conveyance means 1 one by one.

[Effect of idea]

The copy document feeder of this invention has the above-mentioned configuration, and is provided with a paper feed stacker and a paper ejection stacker on both sides of the document setting surface, and an inversion section between the document setting surface and the paper ejection stacker. Since the document is fed from the paper feed stacker to the document set surface by the conveying means, the document can be reversed from front to back in the reversing section and fed to the document set surface again, so that the apparatus can be made inexpensive and compact. can do.

In addition, in the reversing section, there is a paper ejection path that allows the original to travel almost straight and leads to the paper ejection stacker in a mode in which one side of the original is copied, and a paper ejection path that branches off from the paper ejection path and leads the original to the paper ejection stacker in a mode in which both sides of the original are copied. A reversing path in which the original is curved and reversed and guided to the document setting surface again, and a paper ejection path in which the document that has been further reversed and fed to the document setting surface is reversed again at the reversing section, and then guided almost straight to the paper ejection stacker. Therefore, when storing double-sided originals in which the front and back sides of the original are copied in succession, and single-sided originals in which only the front side of the original is copied, in the paper ejection stacker, one of the double-sided copy and the single-sided copy is removed from the original set side. The originals are delivered directly to the paper stacker via the paper output path, and after being reversed from front to back through the reversing route, they are ejected almost straight from the paper output path to the stacker, so the order of the originals is reversed in the stacker. Both double-sided copies and single-sided copies can be stored in a fixed order, so the user does not have to worry about adjusting the order of the originals after copying is completed.

In addition, for both double-sided copying and single-sided copying, the document is ejected to the paper ejection stacker while traveling almost straight, so the original is not curved and the performance of ejecting the original to the paper ejection stacker is dramatically improved. ,
Both double-sided and single-sided copies can be ejected in an orderly manner without worrying about paper jams.

Furthermore, it is possible to determine whether the original is in single-sided copy mode or double-sided copy mode by looking at the situation in which the document is ejected from the first ejection port and the second ejection port provided above the first ejection port, and maintenance It is very convenient for checking the copy mode, etc.
Since the second ejection port is provided above the first ejection port, it is possible to shorten the path for ejecting a document whose back side has been copied by turning it over again after turning it over again so that the front side faces the front side. can.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention, and FIG. 1 is an overall explanatory view thereof, and FIGS. 2A, 2B, and 2A are explanatory views of the operating state. 1... Conveying means, 2... Document setting surface, 3...
Original, 4... Reversing path, 5... Paper discharge stacker,
6, 7... paper discharge path, 6'... first discharge port,
7'...Second outlet.

Claims (1)

[Scope of utility model registration request] A paper feed stacker 11 and a paper discharge stacker 5 are provided on both sides of the document set surface 2, and a reversing section is interposed between the document set surface 2 and the paper discharge stacker 5. In the copying original feeding device, the original 3 fed to the original setting surface 2 by the reversing section can be reversed from front to back and then fed to the original setting surface 2 again. In the mode for copying, there is a paper ejection path 6 equipped with a first ejection port 6' that allows the original to travel almost straight and leads to the ejection stacker 5, and in a mode for copying both sides of the original, it branches off from the ejection path 6. Curve and reverse the original and place it on the original setting surface 2 again.
The document that has been further reversed and fed to the document set surface 2 is reversed again at the reversing section, and is then moved almost straight to the paper discharge stacker 5.
A copy document feeding device characterized in that a paper ejection path 7 is formed, each of which has a second ejection port 7' disposed above the first ejection port 6', leading to a paper sheet.