JPS60216346A - Automatic original feeding device of copying machine - Google Patents

Abstract

PURPOSE:To put pages in order by turning over and discharging automatically fed originals during the copying operation of the copying machine frame and also feeding originals automatically regardless of the copying operation when the copying machine is not in copying operation. CONSTITUTION:An original feeding part, original conveying part, and original discharging part are operated independently of the copying operation of the copying machine frame 20 so as to feed originals automatically when the copying machine is not in coying operation. The original discharging part has an original discharging roller 32 composed of discharge rollers 32a, 32b, and 32c and is provided with the 1st original discharge passage through which originals fed automatically during the copying operation are inverted, discharged, and sent to a tray 34 by those rollers and the 2nd original discharge passage through which originals fed automatically when the copying machine is not in copying operation are discharged in the opposite order of the setting at the original feeding part 21 and sent to a tray 33.

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to an automatic document feeder in a copying machine, and in particular to a function that performs an automatic feed operation to reverse the page order of a document, separate from the copying operation of the copying machine. Regarding things that have.

<Background of the Invention> Conventionally, in the field of automatic document feeders in electrophotographic copying machines, there has been a type of automatic feeder in which the page order of a document is reversed when copying is performed using an automatic feeder due to the relationship between the automatic feeder system and its structure. There is a device. Figure 2 is a schematic diagram of a copying machine equipped with this type of automatic document feeder. The automatic document feeder 1 includes a document stocker 5, a document feed section including a document feed roller 7, a document conveyance section including a conveyor belt 4 which is disposed on a document table 14 so as to be openable and closable, and a document discharge roller 8. and a document ejection section including a document ejection tray 9, and is arranged at the upper part of the copying machine main body 2. The original 6 is set in the original stocker 5 with the front side facing down. For example, if 10 originals are to be loaded, the 1N page is set at the bottom and the 10th page is set at the - side. Now, when a copy button (not shown) on the copying machine main body 2 is operated to start copying, the tenth page of the document is fed by the document feed roller 7. Next, the document is transferred to the transport heald 4, the drive roller 3a that drives it,
3b, the document is sent to the document table 14 side of the copying machine main body 2. The position of the original sent to the original placing table 14 is detected by a detection switch (not shown), and the document is stopped at the original placing standard position of the original placing table 14''. Next, the copying function of the copying machine main body 2 starts to operate, and after going through each step of the copying process, the image of the 10th page of the original that was placed in the first position of the original stacker 5 is placed on the photoreceptor 10. The image is then transferred to the copy paper 12 fed from the copy SIC stocker 11 and fixed through a fixing section (not shown), after which the copy paper is discharged onto a copy tray 13''. After copying the desired number of sheets, the automatic document feeder 1 starts operating again, and the 10th page of the copied document is ejected onto the document ejection tray 9 by the document ejection roller 8, and at the same time, the second document (original) is ejected onto the document ejection tray 9. Stocker 5 "Second"
The 9Nth document, which is the second one to be deleted, is sent in, and the operations described above are repeated. Thereafter, in the same manner, the above-described original copying operation and original feeding operation are repeated until the copying of the 1Nth original is completed. The originals ejected to the original output tray 9''2 by the copying process described above are 1
For example, page 0 is at the bottom, and page 1N is at the top. In other words, the originals are stacked in the reverse page order to the order in which they were loaded into the original stocker 5.As described above, in the system shown in FIG. However, it is more convenient for later processing to eject the original in the same order as the cent order, so as shown in FIG.
A type in which the document is reversed once and then discharged onto the document discharge tray 9' has also been put into practical use. Arrows P and Q in the figure indicate the reversal direction.

By the way, conventionally, originals and copies whose pages have been reversed have to be rearranged manually or by using a dedicated page alignment machine. However, doing it manually is inefficient, and using a special machine causes problems in terms of performance. Therefore, since the automatic document feeding system shown in Figure 1 described in -1- indicates that the page order of the original is reversed, the automatic document feeding system is used to align the pages of originals with reversed page order, copies, etc. However, the operation of the automatic document feeder shown in Fig. 1 is directly connected to the operation of the copying function of the copying machine itself, that is, as described above, the automatic document feeder is automatically fed by operating the copy button of the copying machine. The device was configured to operate and therefore could not be used alone for page alignment separate from the copying operation.

<Objective of the Invention> The object of the present invention is -1- In view of the above-mentioned circumstances, during the copying operation of the main body of the copying machine, the document which is automatically fed is reversed and ejected, and when the copying operation is stopped, the document is ejected in a reverse direction, and when the copying operation is stopped, the original is To provide an automatic document feeder for a sheet copying machine, which automatically feeds the document and enables page alignment.

<Structure of the Invention> In order to achieve the above-mentioned object, the present invention is configured such that the document feeding section, the document conveying section, and the document ejecting section are configured to automatically feed the document when the copying operation of the copying machine is stopped. In addition to having a configuration that operates independently of the copying operation of the machine itself,
The document ejecting section includes a first document ejecting path for inverting and ejecting documents that are automatically fed during a copying operation, and a first document ejecting path for inverting and ejecting documents that are automatically fed when a copying operation is stopped, and a set order in which the documents that are automatically fed when the copying operation is stopped are set in the document feeding section. It is characterized by having a second document ejection path that ejects documents in the reverse order.

<Embodiment> FIG. 3 is a schematic diagram of an automatic document feeder according to an embodiment of the present invention, and FIG. 4 is a diagram of a document discharge section of the automatic document feeder.

In the figure, 20 is a main body of the copying machine, 21 to 23 constitute an automatic document feeder according to this embodiment, 21 is a document feed section, 22 is a document transport section, and 23 is a document discharge section. The document feed section 21 includes a document stocker 24 and a document feed roller 25.
Consisting of The original 26 is placed in the original stocker 24 with the front surface facing down into the cellar 1. The paper feed roller 25 is arranged above the original 26, and feeds the original into the original stocker 2A in order from the negative side of the set.

The document 1 general feed section 22 consists of a 1-speed feed heald 2B stretched between drive rollers 29 and 30. This manuscript Illll feeding section 2
2 can be opened and closed, and also has the function of a document holding plate. The original fed by the feed]-ra 25 is conveyed by the first general feed heald 28 to the 2+'';

FIG. 4 shows the configuration of the general feed section 23 for the original document 1j7.

Document ejection roller 3 2 II Ejection roller 3 installed in three stages
2 a, 3 2 1), 3 2 c. This original f system month! The guide member 35 installed near the 1-ra 32 glue) side is moved by the solenoid (not shown) in the direction of the arrow A or R, and the guide member 1' part related to the movement At the position of month 35, the document 1/1 output route is set. 33 is an original JJ1111 1-ray in which originals automatically fed during the copying operation of the copying machine main body 20 are deposited. 3 4 &;I: This is a document ejection tray that deposits documents that have been automatically fed for page alignment when copying is stopped.

An automatic document feed operation section (not shown) is provided on a part of the cover of the paper feed roller 25, and the operation section has an ADF button (not shown) for instructing automatic document feed during copying.
and the page alignment button (
(not shown) is provided.

Motors for driving the respective parts 21 to 23 are installed independently of the main body of the copying machine. Of course, each part may be driven by a drive motor on the copying machine main body side. The drive of each roller is controlled by clutch operation. Detection of jam etc. is processed using known detection technology.

Next, the specific operation of the automatic document feeder (hereinafter referred to as ADF) will be explained with reference to flowchart 1 in FIG.

When performing normal copying, first step n1 (hereinafter referred to as
Step ni is simply called ni. ), press the ADF button to set to ADF mode. When the ADF mode is set, the guide Ffl (4435) is moved to the position shown in FIG. 4 by driving the solenoid (n2).

At the setting position of the second guide member 35, an exit path (first original+j+output path) for original 1 18 is formed to eject the original from arrow a to arrow "January" (see FIG. 4). Next, when you operate the copy button (shown in the figure) on the main body 20 of the copying machine. , each part of A D F starts operating (n3,
n4). That is, the paper feed roller 25, the first general feed to column 28, the drive rollers 29, 30, and the document discharge roller 32 start rotating, and the document is sent onto the document table 27, and at the same time, the copy on the copying machine main body side is sent. The operation starts (n4, n5).

During copying, the transport roller 28 and the original discharge roller 32 are stopped, and they start rotating again when a single or multiple copy cycle is completed. When copying is completed, the original on the original placing table 27-1- is ejected through the original ejecting path, but the guide member 35)
Between the ejection rollers 32b and 32C, the ejection roller 32t
) and 32a, the document is reversed and discharged onto the document discharge tray 33. Since the originals are inverted and ejected in this manner, they are deposited on the original ejection tray 33 in the same page order as the order in which the originals were set in the original tray 24. This saves the trouble of rearranging the originals when copying is complete. At the same time as the original is ejected to the original ejection tray 33, the next original is fed out by the paper feed roller 25.

The automatic document feeding and copying cycle described above is repeated and ends when there are no more documents set in the document stocker 24 (n6). When copying, it is necessary to set the ADF mode, but when copying a book, the ADF mode must be set.
mode, simply press the copy button and proceed to execute the copy cycle (nl, n7.n8).

Next, the case where this ADF is used for page alignment will be explained.

First, an original or a copy with the page order reversed is set in the original stocker 24. Then, without changing to the ADF mode, and without pressing the copy button, press the page alignment button (n 1, n 7, n 9). By operating this button, the page alignment operation mode is set, and the guide member 35 is driven by the solenoid to move in the direction of the arrow in FIG. 4 and set to the page alignment position (nlO). At the center position of the guide member 35, a document discharge path 111 (second document discharge path) is formed that discharges the document in the direction from arrow a to arrow C (see FIG. 4). At the same time as the guide member 35 is set, each of the rollers and the rollers of the ADF begin to rotate, but in this case, the copying operation on the copying machine main body side is stopped (n II I). This n
In the ADF drive of il, the first general feed blade 28, drive rollers 29, 30, and document discharge roller 32 are driven and rotated continuously. That is, the documents sequentially fed out from the document stocker 24 are continuously sent out to the document discharge tray 341 via the document transport section 22 and the document discharge path. When the original 1/1 is output, the original passes between the ejection rollers 32b and 32c without coming into contact with the guide member 35, and is sent to the original ejection tray 34-lx in the reverse order of the cent order in the original stocker 24.
It accumulates in the. By this ejecting operation, the pages of the original or copy placed in the original stocker 24 can be aligned. The above operation ends when there are no more originals set in the original stocker 24 (n12).

In addition, if you do not return to the ADF mode after page alignment, the guide member 35
is moved in the direction of arrow B in FIG. 4 from the above-mentioned position for page alignment and switched to the position for copying.

The automatic document feeder according to this embodiment, like the two series, automatically feeds the document regardless of the copying operation of the copying machine main body,
It is equipped with a page alignment function that discharges documents in the reverse order of the page order, and by using this function, page alignment can be performed efficiently and without using a dedicated page alignment machine.

In addition, since it is configured to perform page alignment using the page order reversal operation of a normal automatic feed mechanism, it is possible to make an automatic document feeder with a page alignment function multi-functional without making any major structural changes. It can be realized. Furthermore, during the copying operation, the 2'TI! Like the J system, it is possible to switch to a system that inverts the original and ejects the original without reversing the order of the pages, which is convenient for normal copying.

2 In the above example, two document output trays are provided, but
It is also possible to use the 1 to 33 relays as the IM transmitter 1 to the cover 31.

<Effects of the Invention> As described above, according to the present invention, by utilizing the document feeding operation that ejects the document with the page order reversed, the document can be automatically fed while the copying machine main body is stopped, regardless of the copying operation. Since it has the function of feeding and aligning pages, using the automatic document feeder according to the present invention allows page alignment to be performed more efficiently and at a lower cost than when using a dedicated page alignment machine. can. Furthermore, during a copying operation, by switching the original ejection path, the original can be reversed and ejected without changing the page order, which is convenient when performing normal copying.

[Brief explanation of the drawing]

1 and 2 are main part configuration diagrams of a conventional automatic document feeder, and FIG. 3 is an embodiment of the present invention. 3A schematic configuration diagram of an automatic document feeder, and FIG. 4 is a document of the same embodiment FIG. 5 is a block diagram of the document ejecting section of the automatic document feeder, and is a flowchart showing the specific operation of the automatic document feeder of the same embodiment. 20-Copying machine body, 21-Document feed section, 22-Document transport section, 23-Document discharge section, 24-Document stocker, 32-Document discharge port-ra, 33.34-Document discharge tray, 35-Guide Applicant for parts Sharp Co., Ltd. Agent Patent attorney Hisao Komori 4 Figure 1 2 Figure 2 Figure 3 Figure 4 Procedures City F: (Voluntary) May 25, 1980 Commissioner of the Japan Patent Office Toshio 2 Invention Name Automatic document feeder in a copying machine 3 Relationship with the case of the person making the amendment Patent applicant address 22-22 Nagaike-cho, Abeno-ku, Osaka Name (50)
4) Sharp Corporation Representative Asahi Saeki 4 Address of agent @543 1-14-2 Shitennoji, Tennoji-ku, Osaka City
No. 2 Nisshin Building No. 702 No. 8 Contents of the Amendment In page 6, line 7 of the statement, ``Idota'' is amended to ``I did''.

Claims (1)

[Scope of Claims] (11) A copying machine comprising a document feeding section, a document transporting section, and a document discharging section, which automatically feeds the document so that the document is fed from the document feeding section, discharged to the document discharging section, and deposited. In the automatic document feeder, the document feed section, the document transport section, and the document discharge section are operated independently of the copying operation of the copying machine main body so that the document is automatically fed when the copying operation of the copying machine is stopped. In addition, the document ejection section has a first document ejection path for reversing and ejecting the original automatically fed during the copying operation, and a first document ejecting path for reversing and ejecting the original automatically fed when the copying operation is stopped. An automatic document feeder in a copying machine, comprising a second document ejection path for ejecting documents in the reverse order of the original document feeder in a copying machine.