JP2895984B2 - Bookbinding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bookbinding apparatus, and more particularly to a bookbinding apparatus suitable for post-processing recorded paper discharged from an image forming apparatus.

[0002]

2. Description of the Related Art Conventionally, in the technical field of an image forming apparatus such as a copying machine, a laser printer or a facsimile machine, a post-processing apparatus for sorting and collating (sorting and stacking) sheets on which images have been formed is known. However, in recent years, a bookbinding apparatus that binds a bundle of sheets and performs simple bookbinding has been proposed as a post-processing apparatus. Generally, the history of bookbinding technology is old,
As for the bookbinding apparatus, many methods have been proposed mainly in the printing industry up to the present, and these can be roughly classified as follows.

<Gluing method> This method has been proposed for a long time, and is generally a method of cutting and gluing a back binding portion used for gluing printed printed matter. Further, in order to prevent the printed matter from becoming uneven, a device for attaching a cloth to the back binding portion has been devised. As a bookbinding device such as a copying machine using such a gluing method, for example, a device described in Japanese Patent Application Laid-Open No. Hei 2-253992 is known.

<Center stop method> This method is most commonly used today and is widely used in general magazines such as weekly magazines. A stop is provided at the center of a sheet bundle after page alignment, and the stop is provided. This is an orthodox system that folds a bundle of paper in half at the center. <Stapling after Paper Folding> This method is a method in which a printed bundle is folded in half, for example, and then the printed bundle is stapled. As a conventional bookbinding apparatus using such a method, for example, one described in Japanese Patent Application Laid-Open No. 62-196677 is known. The apparatus includes one sheet staple tray and a stapler (a stapling unit such as a stapler) provided on the sheet staple tray.
For example, A4 size paper is A4 size so that the side edges do not overlap.
After setting the size, stapling the sheet bundle in the staple tray, releasing the end fence supporting one edge of the sheet, and discharging the sheet bundle from the staple tray to the sheet storage tray provided below by its own weight I am trying to do it.

<Method of stapling the front cover and the back cover after joining them to a sheet bundle> This method has been generally used in post-processing apparatuses in recent years. This is a method in which a sheet bundle is stapled together with a front cover and a back cover after a cover is overlaid. <Simply stapling a sheet bundle> This method is the simplest method of directly binding a sheet bundle with a stapler.
As a bookbinding apparatus using such a method, for example, one described in Japanese Patent Application Laid-Open No. Hei 2-33065 is known.
This apparatus includes one sheet staple tray and a stapler provided in the sheet staple tray, and after stapling a sheet bundle in the staple tray,
The end fence supporting one edge of the sheet bundle is moved in the sheet conveyance direction, that is, in the lateral direction of the apparatus, and the sheet bundle is discharged from the staple tray to the sheet storage tray.

[0006]

However, the conventional bookbinding apparatus of the gluing method requires many processes such as a cutting process, a gluing process, and a fabric laminating process.
As the size of the apparatus increases, the operation of the apparatus becomes complicated, and it is not suitable for use with an image forming apparatus. Also,
In the case of the bookbinding device of the central stop type, it is necessary to execute a stop process after setting and printing the pages in advance, which causes problems such as complicated page alignment and easy removal of the center stop. Had occurred.

On the other hand, a conventional bookbinding apparatus using a stapler is suitable for use in combination with an image forming apparatus. However, since most of the staples are located outside the sheet transport and placement area, the bookbinding apparatus is not suitable. Had become larger. Also, JP-A-62-196677 and JP-A-2-3306
In the device described in Japanese Patent Application Laid-Open No. 5 (1993) -1995, the staple driving portion and the staple receiving portion of the stapler are connected to each other through a rotation fulcrum near and outside the sheet stacking (stacking) area. The stapling position was restricted due to an obstacle, and stapling could not be performed at an arbitrary position. For the same reason, it is not possible to secure a sufficient interval between the staple driving portion and the staple receiving portion, and the carry-in speed is set so that the leading edge of the paper does not catch on the stapler for each page of the multi-page paper. We needed to keep it down. For this reason, it has been difficult to increase the speed of the bookbinding apparatus.

Accordingly, an object of the present invention is to provide a bookbinding apparatus capable of reducing the size of a bookbinding apparatus, not restricting staple positions, and capable of high-speed bookbinding.

[0009]

In order to solve the above-mentioned problems, a bookbinding apparatus according to the first aspect of the present invention is arranged such that sheets are stacked and placed.
Possible loading means and paper to the loading means described above;
The sheet bundle placed on the placing means,
Transport means for carrying out from above, and predetermined mounting of the mounting means described above
A first part disposed so as to face each other with the surfaces interposed therebetween
A predetermined mounting surface of the mounting means, comprising a material and a second member;
The first member arranged above is moved in the direction of the second member.
For binding a bundle of sheets placed on the placing means described above.
Wherein the first member is located at the place of the placing means.
A standard position spaced a predetermined distance from the fixed mounting surface,
Close to or in contact with the top surface of the paper placed on the placement means
The stapling position and the paper placed on the placing means described above
It is characterized by being movable to a binding position .

[0010] The invention according to claim 2 is the first part.
The uppermost member on which the first member is mounted on the mounting means.
Which is characterized in that a stand-by position detection means for detecting that contact with the upper surface of the paper, the invention of claim 3, wherein, the first member is a sheet on the placement means guide
The closest position in the mounting surface side of the site to the mounting surface of the guide member that is characterized in that the said waiting position, the fourth aspect of the present invention, the
When the first member is at the standby position or the binding position,
It is characterized in that the carrying-in or carrying-out operation of the paper by the carrying means is prohibited.

[0011]

According to the first aspect of the present invention, the first member of the binding means is provided .
When the second member, sandwiched between a predetermined mounting surface of the conveying means is provided so as to face each other, said first member, loading of the sheet, placing, in response to each operation of the stitching and unloading Move to the standard position, the standby position, and the binding position. Therefore, the binding device can be arranged inward to reduce the size of the bookbinding apparatus, and a sufficient interval between the first member and the second member can be ensured when the paper is carried in, thereby increasing the speed of carrying in each paper. be able to. Further, since the binding means has a divided structure, there is no restriction on the binding position.

According to the second aspect of the present invention, the first member is the uppermost member.
By providing the standby position detecting means for detecting the contact with the paper , simple and accurate detection of the standby position becomes possible. According to the third aspect of the present invention, the standby position is located closer to the placement surface than a portion of the guide plate where the first member of the binding unit guides the paper on the placement unit is closest to the placement surface. Since the position is set, a stable binding operation can be performed.

According to the fourth aspect of the present invention, the first of the binding means is provided .
When the member is at the standby position or the binding position, the carrying-in / out operation of the sheet onto the placing means by the carrying means is prohibited, so that a malfunction can be prevented beforehand.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 to 33 show a first embodiment of a bookbinding apparatus according to the present invention, and show an example in which the present invention is applied to a copying machine and a sheet post-processing apparatus thereof. In FIG. 1, reference numeral 1 denotes a copying machine main body. A recirculating document feeder 2 is provided at an upper portion of FIG. 1 of the copying machine main body 1, and a post-processing device 3 is provided at a right side of FIG. Have been. FIG. 1 is a schematic cross-sectional view of the copier viewed from the front of the operation side. The operation display unit 500 shown in FIG.
The operation display unit 500 receives an operation command or the like related to a copying operation, a bookbinding operation, or the like, and displays information related to the copying operation, a bookbinding operation, or the like.

The post-processing apparatus 3 includes a jogging section 100, a staple section 300, a discharge section 200, and a bookbinding control section 800, as shown in detail in FIGS. Bookbinding control unit 80
To 0, a command related to a bookbinding operation is input from the operation display unit 500, and the bookbinding control unit 800 controls the jogging unit 100, the staple unit 300, the ejection unit 200, and the like based on the input command ( Details will be described later).

Reference numerals 11 to 14 denote paper cassettes provided in the copying machine main body 1, respectively. Any one of the paper feeding cassettes 11 to 14 in the copying machine main body 1, for example, the paper feeding cassette 12 is a cover sheet. Cover sheet feeding means. The cover sheet stored in the sheet cassette 12 is, for example, A
It is a three-size normal recording sheet or a sheet having a different size (length in the longitudinal direction) from the normal recording sheet. Also,
A cover remaining amount detecting unit (not shown) for detecting the remaining amount of the cover sheet C is provided in or near the sheet feeding cassette 12. The cover remaining amount detecting means detects that the remaining amount is reduced by, for example, contacting a bottom plate (not shown) in the sheet cassette 12 (a paper end state ranging from zero to several sheets, or a reduction to a predetermined number or less). (Known near-end state).

The copier body 1 itself is a well-known device for forming an image by electrophotographic recording, and its detailed configuration and operation will not be described. An image-formed sheet (recording sheet) discharged from the copying machine main body 1 is transported downstream by the transport roller 901 of the post-processing device 3. Transport roller 9
A switching claw 902 is provided downstream of 01, and the switching of the switching claw 902 causes the sheet to pass through the first and second sheet conveying paths 903 and 904.
Conveyed to any of. The sheet conveyed to the first sheet conveying path 903 is discharged onto the proof tray 905. Also,
The sheet conveyed to the second sheet conveyance path 904 is conveyed onto the finish tray 400 by the carry-in means 910. The loading means 910 includes a transport roller 901, a switching claw 902, a second sheet transport path 904, and a transport roller pair 90 disposed on the transport path 904.
Finished tray 40 with 6, 907 and recorded paper
A plurality of sheets are loaded on a zero sheet placement surface (predetermined placement surface) and stacked.

Hereinafter, the detailed configuration of each part of the post-processing device 3, including the operation display portion 500 of the copying machine main body 1 and the circulating document feeder 2, will be described in order. <Operation Display Unit 500> In FIGS. 2 and 3, reference numeral 501 denotes a mode clear / preheat key, and the mode clear / preheat key 501 serves both as a mode clear and a preheat key. That is, the mode clear / preheat key 501 functions as a mode clear key when pressed momentarily, and functions as a preheat key when pressed continuously. The mode clear key is a key that is pressed when returning each mode described later to the standard mode, and the preheat key 501 is a key that is pressed when the machine in the apparatus is set to the preheat state and when the preheat state is released. Reference numeral 502 denotes an enter key which is pressed when inputting numerical values of zoom magnification and binding margin, reference numeral 503 denotes an interrupt key which is pressed when performing interrupt copying, and reference numeral 504 denotes a print key which is pressed when starting a copying operation. is there. The print key 504 also serves as a ready / weight display, with a green LED when ready and a red LE when waiting.
D lights up.

Reference numeral 505 denotes a numeric keypad.
This is used for setting the number of copies, for inputting a numerical value of zoom magnification and binding margin, and the like. Reference numeral 506 denotes a clear stop key. The clear stop key 506 has a clear key function during standby and a stop key function during copying operation.
The clear key is a key that is pressed when canceling the set number of copies. The stop key is pressed when the copying operation is interrupted, and the machine stops when the copying operation is completed at the time when the stop key is pressed. Reference numeral 550 denotes a liquid crystal display, and details of the liquid crystal display 550 are shown in FIG. Reference numeral 551 denotes a message display for displaying information about the machine. The message display 551 displays a message such as "Can be copied" and "Please replenish paper". Reference numeral 507 denotes an automatic density key. The automatic density key 507 is a key that is selected when automatically adjusting the copy density according to the background density of the document. When selected, the automatic density display unit 554 is turned on. Reference numerals 508 and 509 denote density adjustment keys that are pressed when manually adjusting the copy density. Each time the density adjustment keys 508 and 509 are pressed, the lighting of the LED 555 of the density display unit moves rightward or leftward. Reference numeral 510 denotes a paper selection key.Each time the paper selection key 510 is pressed, the paper selection display frame 559 moves one after another, and automatic paper selection, manual paper feed, or any of the paper feed cassettes 11 to 14 is selected. Is displayed. "Automatic paper selection" is selected when automatically selecting the paper cassette containing paper of the same size as the original, and "Manual" is selected when paper is fed manually without using the paper cassette. Selected. A display unit 558 displays the paper size of each paper cassette and the absence of paper.

Reference numeral 511 denotes an equal-size key, 512 denotes an enlargement key, and 513 denotes a reduction key. These keys are pressed when designating an equal-size copy, enlargement or reduction of a fixed size, respectively. 51
4 is a zoom up key, 515 is a zoom down key,
These are keys to be pressed when designating an arbitrary magnification between 64% and 142%. Reference numeral 516 denotes a paper specification scaling key used when automatically reducing or enlarging an image of a document in accordance with a specified paper size, and the magnification at the time of magnification is displayed by a numeral on a magnification display unit 562. . 517 is a double-sided key, and the double-sided key 517 is pressed when selecting a single-sided original to be double-sided, a double-sided original to be double-sided, or a double-sided original to be single-sided. like,
The LED above the key is turned on. A binding margin key 518 is pressed when a binding margin is set. In this embodiment, a binding margin can be set on either the left or right side if the binding margin is 21 mm or less. In the case of double-sided copy,
The binding margin can also be set on the back side independently of the front side. The set value is displayed in the message area.

Reference numeral 519 denotes a staple selection key. The staple selection key 519 is a key which is pressed when selecting a one-point stop mode, a two-point stop mode, or a staple-less mode. Reference numeral 520 denotes a cover function selection key. The cover function selection key 520 is a key that is pressed when selecting a front cover mode, a back cover mode, both front and back cover modes, and a no-cover mode. These cover modes are modes that indicate whether one sheet of the same size as the sheet bundle is added to the front side, the back side, or both sides of the image-formed sheet bundle, or whether no sheet is added at all. Since bookbinding using the staple selection key 519 and the cover function selection key 520 is well-known, a detailed description of a mode selected by these keys is omitted, and the following mainly describes a simple bookbinding mode described later.

Reference numeral 521 denotes a simple bookbinding key.
The user can select a simple bookbinding mode (to be referred to as an SSB mode hereinafter) or an SSB release mode by referring to FIG.
Normally, when a document is set on the document table of the circulating document feeder 2, an appropriate sheet is selected in consideration of the magnification, but when the SSB mode is selected. Is a paper set in the paper feed cassette such that the longitudinal direction thereof coincides with the front-rear direction of the copier body 1 (the front-rear direction described below all refer to this direction), and is the same size. Even in this case, the shortest direction is not selected. The cover sheet is preferably a sheet whose short side direction is substantially the same as the length of the sheet selected above in the longitudinal direction and whose longitudinal direction is twice or more the length in the short side direction of the sheet selected above. . If the document is, for example, A4 size, the cover may be selected to be A3 size in the paper feed cassette 12, but in actual use, it is 5m larger than the standard size such as A3.
It is preferable to store a sheet having a length of about m in a longitudinal direction in a sheet cassette dedicated to a cover.

In the SSB mode, the presence / absence of cover copy is determined by the SSB mode with cover page or the SSB mode without cover page.
B. Mode can be selected. The SSB mode with cover is selected when the document already has a cover, the last document in the bundle of documents is determined to be the cover, and the image of the cover document is placed on the paper fed from the paper cassette as the cover. Is a mode in which is copied to the post-processing device 3 after being copied. No cover S.
The SB mode is selected when the original does not have a cover, and is a mode in which, after copying the final original, the sheet serving as the cover from the paper supply cassette is directly conveyed to the post-processing device 3. Selection of the SSB mode with the cover and the SSB mode without the cover is possible by operating the bookbinding key 521.
Note that the sheets bound in the SSB mode are shown in FIG. 4, where S is a sheet bundle and C is a cover.

The normal SSB mode is set to the SSB mode with a cover on the assumption that the document bundle has a cover. In the SSB mode, the front cover mode and the staple stop mode are automatically selected.
The staple mode and the cover mode are automatically released to reduce the burden on the operator.
In the staple selection key 519, the cover function selection key 520, and the simple bookbinding key 521, the LED above the key is turned on so that the selected mode can be identified, and each key 519, 520, 521 is pressed. Each time the mode is changed, the mode is sequentially switched one by one. The processing procedure by these key operations is shown in FIGS.

<Circulation Type Document Feeding Device 2> FIG. 9 is a block diagram of a control circuit of the circulation type document feeding device 2. In the figure, a CPU 701 includes a ROM 701a, a RAM 701b, an AD
A converter 701c and a serial communication port 701d are integrated into a one-chip microcomputer, and an output port 702 and an input port 703 are externally provided. Output port 702 has
A motor driver 707 for driving the original transport motor 704, the belt drive motor 705, and the original discharge motor 706 at a constant speed is connected, and drives each motor as needed. Further, C
The PU 701 is connected to the original feeding clutch 70 through the output port 702.
8. The load such as the partition claw solenoid 709 is also driven. The input port 703 is connected to signals of a conveyance sensor, a document size sensor, and the like, so that necessary information can be obtained. Hereinafter, the document feeding operation of the circulating document feeder 2 will be described in order including some detailed configurations.

(1) Setting of Document In FIG. 10, the document on the document table can be moved in a direction perpendicular to the document conveying direction, and a side guide 601 can be moved in the conveying direction at the rear of the document conveying direction. It is regulated by the end plate 604. The presence or absence of a document on the document table is detected by a reflection sensor provided on the document table.

(2) Document Size Detection In FIG. 10, a document size detection sensor 602 is attached to the side guide 601. The document size detection sensor 602 detects a document signal corresponding to the document size in a direction orthogonal to the document conveyance direction. And its signal terminal is 5V, GN
D, connected to a signal line, and reading the output voltage via an AD converter 700c in the CPU 700, the width of the original is detected. Further, the length of the document in the transport direction is detected based on which of the plurality of document length sensors 603 attached to the document table side plate detects the click claw 605 of the end plate 604, and A wide variety of document sizes are supported in combination with width and document length detection.

(3) Document End Detection FIGS. 11 and 12 show a mechanism of document end detection.
The operation of the document end mechanism will be described. Document divider claw 606
Means that the partition claw solenoid 709 is ON /
By turning it off, the solid line position in FIG.
) And a virtual line position (when the solenoid is OFF). Also, when the document separating claw 606 is in the solenoid OFF state,
It is rotatable from the imaginary line position in FIG. 12 to the dotted line position in FIG. 12, and engages with the document separating claw sensor 610 when located in the dotted line position in FIG. The document separating claw 606 is the document separating sensor 61
When the document bundle is placed on the document separating claw 606 in the state of being engaged with 0, the document separating claw 606 is turned on by the partition claw solenoid 709, so that the partition arm 608 moves along the partition claw rail 611. The document separating claw 606 comes out from the lower side of the document. With this operation, the lifting pin 612 also moves while being guided by a pin rail (not shown), the tip of the document separating claw 606 is lifted, and further, there is a magnet 609 above the separating claw, and the lifting plate 613 is attracted. Document divider claw 606
Moves to the top. Thereafter, when the partition claw solenoid 607 is turned off, the original moves to the upper side of the document by the urging force of the spring. When all the originals below the document separating claw 606 are fed by the copying operation, the document separating claw 606 is set in the document separating claw sensor 610, and the last sheet of the document is detected. (4) Document Conveying Control The recirculating document feeder 2 of the present embodiment feeds the last sheet of the document bundle. In such a sheet feeding, the cover comes last, so that Operation.

(A) Timing of First Copy FIG. 13A is a timing chart of the first copy, showing timings of document feeding, sheet feeding, document exposure, and document discharging. First, after the original is fed, the signal of the original separating claw sensor 610 is checked at a predetermined timing to determine whether or not the original is the last sheet. If the sheet is not the last sheet, the sheet is fed from the sheet feed cassette for the sheet, and then the document exposure is started at the timing when the image and the sheet match. The above manuscript,
It is set on the contact glass 21 of FIG. 1 before exposure. When the exposure is completed, the original is immediately discharged by the original belt. Feeding of the next document is started prior to the above discharging operation. Hereinafter, the same operation is repeated up to the final document.
Paper is fed not from the conventional paper cassette, but from the paper cassette selected for the cover. The exposure timing at this time is controlled so that an image is formed on the downstream side in the transport direction of the cover sheet. Therefore, the registration roller 22 of FIG. 1 starts to rotate earlier than the normal image.

(B) Timing of the Second Copy After the copy of the first copy is completed as described above, the number of documents up to the last document is recognized.
As shown in FIG. 3B, the copying operation proceeds at the timing determined by the document replacement operation without detecting the final sheet for each sheet feeding.

(5) Processing at the time of paper end When the cover C is added in the SSB mode, two paper cassettes for the paper and the cover are used as described above. The process at the paper end at this time is as follows. (A) Paper end at paper copy …… Mechanical stop (b) Cover at paper end at paper copy …… Paper copy continued, machine stop at cover copy (c) Paper end at cover copy …… Execute cover copy (D) Machine stop during paper copy (d) Cover end at paper end during cover copy ... machine stop <Jogging unit 100> In FIGS. 14 to 17, 101 is a brush roller, and brush roller 101 is the transport shown in FIG. The sheet discharged onto the finish tray 400 by the roller 901 or the like is applied to the end fence 102 to align the leading edge in the sheet transport direction. Further, the front-back direction of the sheet is aligned by a jogging operation described later by the rear side fence 103 and the front side fence 104.

As shown in FIGS. 14 and 15, the end fence 102 is fixed to a belt 105 for moving the end fence, and is moved in the sheet conveyance direction by the operation of a motor 106 for moving the end fence. Stapling can be performed at an arbitrary position according to the size or the preference of the operator (for example, the margin of the document, the binding margin created by the copying machine). As shown in FIGS. 1 and 15, the end fence 102 is disposed so as to face the stapler main body 302 of the stapler 301 with the finish tray 400 interposed therebetween, and in the direction of the mounting surface of the finish tray 400, , End fence 102 and stapler body 3
Between 02, side fences 103 and 104 are arranged. The reference position of the end fence 102 is such that the protrusion 102a of the end fence 102 is the end fence home position sensor 107.
Is the position detected by The end fence home position sensor 107 is set at a position where the end of the maximum copyable sheet can be stapled.

The side fences 103 and 104 are fixed to moving belts 108 and 109, respectively, above the paper. These moving belts 108 and 109 are supported by pulleys 116 to 119, and are independently driven by side fence moving motors 111 and 110. That is, the side fence 103, 1
04 are independently reciprocated in the direction of the arrow in FIG.
Both sides of the paper (front and rear sides of the apparatus) are aligned. Further, sensing patterns 112 and 113 are provided at predetermined positions of the moving belts 108 and 109, and these patterns 112 and 113 are detected by the sensors 114 and 115, and the reference positions of the side fences 103 and 104 are determined. You. In addition,
The jogging operation for aligning the sheets is performed every time one sheet is discharged.

After the end of the jogging operation, the stapler 301
When the staple is completed, the side fence 103, 1
In step 04, as shown in FIG. 17, the sheet moves in the same direction and discharges the sheet to the front side of the apparatus. When the paper is discharged, the side fence 104 on the front side of the apparatus moves along the circumference of the pulley 116, and does not hinder the discharge of the sheet bundle S. Further, the side fence 103 on the rear side of the apparatus needs to move at least until the sheet bundle S falls from the finish tray 400 by its own weight, but the moving distance may be changed according to the sheet size. Further, the side fence 104 may be stopped at a height at which the sheet bundle S can pass.
There is no special need for 104 shelter spaces. After the paper ejection is completed, the side fences 103 and 104 move in the same direction, return to their original positions, and move to the next cycle.

On the other hand, after staples are completed, the end fence
It is also possible to align 102 to a fixed position irrespective of the paper size, and then discharge the paper by the side fences 103 and 104. By operating in this manner, the sheet bundle S can be discharged while guiding the lower end portion of the sheet bundle S to a constant height by the end fence 102. <Staple section 300> FIG.
In the figure, 301 is a stapler, and the stapler 301
The stapler body 302 includes a stapler main body 302 (a stapling portion , a first member ) and needle receiving portions 306a and 306b (a second member) provided separately from each other with the finish tray 400 interposed therebetween. Although FIG. 18 shows only two staple receiving portions, a large number of staple receiving portions can be provided so as to correspond to various paper sizes. The stapler main body 302 includes a driving portion 302a, a needle storage portion 302b, a plate-like projection 302c, a leaf spring 302d, and an arm 302e. The driving portion 302a and the needle storage portion 302b
Is rotatably supported. The needle 304 stored in the needle storage part 302b is a plate-like projection 302 provided in the driving part 302a.
18C, the needles 304 are pushed one by one downward in FIG. 18, and the extruded needles 304 penetrate the sheet bundle S aligned on the finish tray 400 by the jogging operation. The staple trays 306a and 306b are bent along the surface shape thereof, thereby completing the stapling of the sheet bundle S.

The needle receivers 306a and 306b are eccentric cams, respectively.
It is disposed separately (divided) below 307a and 307b on the same surface as or below the sheet mounting surface of the finish tray 400 (with the staple supports 306a and 306b not protruding). Two eccentric cams 307a and 307b are provided at predetermined upper positions of the stapler body 302 in FIG. 18, and the needle 304 is pushed out by rotation of the staple eccentric cams 307a and 307b. These eccentric cams 307a and 307b are fixed to the through shaft 308, and rotate together with the through shaft 308. The number of the eccentric cams 307a and 307b may be one or three or more. Usually eccentric cam 307
A and 307b stop at positions where they do not come into contact with the leaf spring 302d by detecting the position of a sensor or the like (not shown) (the state shown in FIG. 18). Then, at the time of stapling, the through shaft 308 is driven only one rotation by a motor (not shown) via a gear or the like,
By this rotation, the eccentric cam 307a presses the leaf spring 302d,
The driving portion 302a is pressed downward about the shaft 308 by the reaction force of the leaf spring 302d.

The arm 302e is fixed to the tip of the driving portion 302a, and is engaged with the staple switching arm 312. The staple switching arm 312 is fixed to the shaft 313,
The staple switching arm 312 is rotated with the shaft 313 during staple operation.
Rotates clockwise in FIG. As a result,
The stapler body 302 falls under its own weight, and its tip (specifically, the needle storage section 302b) comes into contact with the uppermost sheet of the sheet bundle S below and stops. At this time, the staple storage section 302b of the stapler main body 302 presses the sheet bundle S from above, and functions as a sheet guide for preventing the sheet bundle S from shifting during stapling. On the other hand, except during stapling, the staple switching arm 312 rotates counterclockwise due to the returning force of the spring 315, and stops at a position where the returning force is regulated by the stopper 316. Therefore, except during stapling, the stapler main body 302 is attached to the staple switching arm 312.
Is lifted to the uppermost stop position and transported sequentially,
The sheet is held in a state separated from the stacked sheet bundle S.

That is, in the present embodiment, the eccentric cams 307a and 307b are driven by the motor in accordance with the respective operations of loading, placing, binding and unloading the paper of the post-processing device 3, and thereby the stapler 301 is driven. Stapler body 302
The (stapling unit) stops at three stop positions during one bookbinding operation. The three stop positions are a standard position where the staple switching arm 312 is raised by the return force of the spring 315 and the leading end of the stapler main body 302 is farthest from the finish tray 400 (at a predetermined distance), and the solenoid 314 is ON (suction) operation, the stapler 301 falls to the sheet bundle S side, and the stapler body 302 comes into contact with the sheet bundle S at a standby position;
There are three positions, ie, a binding position where the sheet bundle is bound by being pressed down by the plate spring 302d by 307b. Then, at the standard position, even when the speed of feeding the paper onto the finish tray 400 is increased, the paper does not come into contact with the lower portion of the stapler main body 302. In the standby position, the stapler main unit 302 moves the sheet bundle S loaded in the finish tray 400 in a state where there is no problem in arranging (jogging) the sheet bundle S.
In the binding position, the driving portion 302a of the stapler body 302 comes closest to the needle receiving portions 306a and 306b, and the tip of the punched out needle 304 is bent by the needle receiving portions 306a and 306b. The sheet bundle S is bound.

In this embodiment, the staple storage section 302b provided on the stapler 301 first contacts the uppermost sheet on the finish tray 400 and temporarily stops the stapler body section 302 at a position close to the sheet bundle S. It functions as a standby position detecting means. In addition, the height of the shaft 303 rotatably supporting the stapler body 302 on the finish tray 400 is set so that an appropriate guide function can be exhibited even when bookbinding is performed with a maximum number of sheets. Is stopped at the standby position, the lower surface of the distal end portion of the stapler main body 302 is in the state where the needle storage portion 302b is in the state of returning to the standard position.
(Within which is the guide of the paper loading onto the finish tray 400 of the lower surface of the needle storage portion 302b, closest to the site on the sheet placing surface finish tray 400) from the finish tray 400 (predetermined mounting Face) side.

The stapler body 302 is fixed to the belt 325, and can be moved in the direction of the arrow in FIG. 18 by driving the belt 325. Therefore, the stapler body
Reference numeral 302 denotes two positions immediately above the needle receivers 306a and 306b, which can be stapled by rotating the eccentric cams 307a and 307b. <Ejecting Unit 200> In FIG. 19, reference numeral 3a denotes a frame of the simple post-processing device 3, and an opening 201 is provided on the front side of the frame 3a.
Are formed. The opening 201 is formed along the direction in which the finish tray 400 extends, and a discharge tray 202 is provided below the opening 201 so as to be supported by the frame 3a. The stapled sheet bundle S on the finish tray 400 is discharged onto the discharge tray 202 outside the apparatus through the opening 201 by the movement of the side fences 103 and 104. That is, the side fence 10
Reference numerals 3 and 104 denote carrying-out means for carrying out the sheet bundle S on the finish tray 400, and this means and the carrying-in means 910 constitute a carrying means as the entire post-processing apparatus.

<Control Unit 800 of Post-Processing Apparatus> Next, FIG.
Based on the above, the configuration of the bookbinding control unit 800 and its control operation will be described. (1) Configuration In FIG. 20, the CPU 801 includes a ROM 801a, a RAM 80
1b, a one-chip microcomputer in which a serial communication port 801c is integrated, and an output port 802, a staple control input / output port 803, and an input port 804 are externally provided.
The control circuit receives a command from the control unit of the copying apparatus main body 1 through the serial communication port 801c, performs necessary operations, and transmits operation information (eg, flag information) from the serial communication port 801c to the copying machine main body 1 side. Can be sent. The output port 802 includes a jogger motor 850 (corresponding to the side fence movement motors 110 and 111), an end fence movement motor 806, and a staple longitudinal movement motor 80.
7, motor 808 for transport roller drive, motor for lift belt
A motor driver 810 for driving the 809 at a constant speed is connected, and each motor is driven as needed. Further, loads such as the switching claw solenoid 811 are also driven via the output port 802. The staple control input / output port 803 includes a staple vertical movement motor 812 and a staple operation motor 813.
The staple control input / output port 803 is provided with signals required for the operation of the staple unit independently. A home position sensor, a transport sensor, and the like are connected to the input port 804 so that necessary sensor information can be obtained.

Here, a list of commands from the copying machine main body 1 is shown. Mode command: Staple mode, non-staple mode Size command: Paper size information Position command: Staple position information (front-rear direction, left / right direction) Motor on command: Transport motor ON Motor off Command: Transport motor OFF Paper send command: Paper transport Cover send Command: Cover cover Transfer Staple Command: Staple execution When the bookbinding control unit 800 receives the above command,
As shown in FIG. 21, it is checked which command it is, and processing corresponding to each command is executed (FIGS. 22 to 29).

(2) Operation Control The operation of the post-processing device 3 includes an operation of discharging paper to the proof tray 905, an operation of discharging paper to the finish tray 400, a paper alignment operation, a binding operation, and an operation of discharging paper to the discharge tray 202. Therefore, the operation control by the control unit 800 will be described in the order of the items (a) to (e). (A) Selection of the tray for discharging the paper From the mode command sent at the start of the copying operation. In response to this mode command, one of three modes of a north staple mode, a normal staple mode, and an SSB mode is selected, and an operation according to each mode is performed. If the transmitted mode command is the north staple mode command, the switching claw 902 is switched to the proof tray 905 side, and if the transmitted mode command is the staple mode or the SSB mode, the switching claw 902 is switched to the finish tray 400 side.

(B) Determining the Staple Position In the staple mode, the sheets are discharged to the finish tray 400, the discharged sheets are temporarily stacked, the sheets are aligned, and the stapling operation is performed when one copy is completed. Then, the stapled sheet bundle S is discharged. The staple position can be changed by moving the end fence 102 and moving D2 by moving the stapler body 302 shown in FIG. 30, and the information is given by a position command. Side fence 103, 104 and end fence 102
Is as follows.

If the mode command sent first is a staple command, the side fences 103 and 104 are moved in the longitudinal direction of the sheet size by driving the side fence moving motors 110 and 111 with reference to the size command sent after the mode command. The end fence 102 is moved to the corresponding position and the end fence 102 is moved to the position corresponding to the widthwise direction of the sheet by driving the end fence moving motor 806. The position of the stapler body 302 is the end fence 102
End fence
At the position 102, the staple position of the sheet is determined. The distance of this staple position from the end face in the paper longitudinal direction is given by a position command.

(C) Discharging the paper to the finish tray 400 When the recorded paper is sent from the copying machine main body 1 to the post-processing device 3, a paper send command is sent before the paper is conveyed, and in the case of normal paper, In the case of cover paper, a cover send command is sent. In the SSB mode, the cover send command is a signal indicating that the size of the sheet sent from the main body is twice or more the size of the sheet up to that time. When the sheet is carried into the finish tray 400, the two side fences 103 and 104 are moved in opposite directions while being synchronized with each other by driving the side fence movement motors 110 and 111, so that the front and rear directions of the sheets are aligned. As will be described later, the side fences 103 and 104 also serve as sheet discharging means, and therefore have independent driving means. This jogging operation is shown in FIG. 15 as described above.

(D) Binding operation The flow of the stapling operation is shown in FIG. When a staple command is sent from the copying machine main body 1, a staple flag is set, and the apparatus waits for paper to be conveyed into the finish tray 400 by the number of paper send commands and cover send commands sent up to that time. When the number of sheets matches the number of commands, the stapling motor
The sheet bundle S is stapled by turning on the eccentric cam 813 and rotating the eccentric cams 307a and 307b once (see FIG. 30). When the staple operation is completed, the staple flag is reset, the number memory for counting the number of sheets conveyed in the finish tray 400 is cleared, and the discharge flag is set, thereby shifting to the next discharge operation.

That is, when the stapler main body 302 of the stapler 301 is at the standby position or the binding position, the discharge of the recorded paper from the copying machine main body 1 is prohibited (see FIG. 32), The operation of transporting the paper onto the finish tray 400 by the transporting means in the post-processing device 3 is prohibited, and the operation of transporting the side fences 103 and 104 is prohibited.

(E) Sheet discharge The sheet is discharged by moving the side fences 103 and 104 as described above. FIG. 32 shows an operation at the time of jogging and a speed waveform in the front-rear direction of the side fences 103 and 104 at the time of discharging the paper (the backward speed is set to +). Is shown. The sheet bundle S that has been stapled after the jogging operation of the side fences 103 and 104 makes the discharge position constant regardless of the size by moving the end fence 102, that is, the rear end of the sheet bundle S is moved to the predetermined discharge position. After fitting, side fence
It is sent to the front side of the apparatus at a constant speed by 103 and 104. At this time, of the two side fences that have started moving at the same time, the side fence 104 on the front side stops when retreating from the moving path, but the side fence 103 on the rear side moves further and immediately before the sheet bundle S falls. Slow down once. This deceleration operation is for reducing the impact when the sheet bundle S falls. FIG. 33 is a diagram showing the difference in the stop position depending on the paper size. The stop position is changed for each size to shorten the discharge time. When the discharging of the sheet bundle S is completed, the sheet bundle S returns at a speed higher than the moving speed to the front side by the reduced load, and
Prepare for the next jogging operation.

In this embodiment, the maximum number of staples is set. Although the maximum number of staples of the post-processing device 3 varies depending on the thickness of the paper to be used, when the designated paper is used, the number of staples is determined. In this embodiment, the maximum number of staples is set to 30 sheets.
However, in this copying apparatus, there is no SSB without a cover.
The mode can be selected. In this mode, since the cover is added to the number of originals, the maximum number of originals is reduced accordingly. Generally, the cover paper is thicker than normal paper, so it is desirable to specify according to the thickness,
In this embodiment, the cover is one sheet.

In the bookbinding apparatus of the present embodiment thus configured, the stapler body 302 (stapling section) of the stapler 301 and the staple receiving sections 306a and 306b include the sheet placement surface of the finish tray 400. The stapler 301 is composed of the stapler body 302 and the needle receivers 306a and 306b, since the loading means 910 and the side fences 103 and 104 are provided so as to be opposed to each other with the paper conveyance track surfaces (predetermined placement surfaces) interposed therebetween. Can be arranged in the horizontal projection plane of the finish tray 400, and the installation area can be reduced and the size can be reduced as compared with the conventional case where the stapler is arranged on the side end side of the finish tray. Further, the stapler main body 302 moves to the standard position, the standby position, and the binding position in accordance with the operations of loading, placing, binding, and unloading the paper. Accordingly, the stapler 301 can be arranged inward to reduce the size of the bookbinding apparatus, and the space between the stapler body 302 and the staple receivers 306a and 306b can be sufficiently secured when paper is carried in to prevent the stapler from being caught. Accordingly, it is possible to increase the carrying speed of each sheet. Further, since the stapler 301 has a vertically divided structure, there is no restriction on the binding position with respect to the sheet, and the staple storage section 302 which comes into contact with the top sheet.
Since the standby position is detected by b, it is possible to easily and accurately detect the standby position.

In the standby position of the stapler main body 302, the stapler main body 302 of the stapler 301 is positioned closer to the finish tray 400 than the lower surface (guide plate) of the needle storage section 302b for guiding the paper on the placing means. Therefore, a stable binding operation can be performed. Further, when the stapler main body 302 of the stapler 301 is at the standby position or the binding position, the carrying-in / out operation of the paper onto the finish tray 400 by the carrying means (the carrying-in means 910 and the side fences 103 and 104) is prohibited. Therefore, a malfunction can be prevented beforehand.

In addition, in this embodiment, the stapler main body 302 and the staple receiving portions 306a and 306b have the above-mentioned vertical structure, so that the bound sheet bundle can be used as the end fence 10.
It can be discharged from three sides other than the two sides, and the discharge to the front side of the device improves the operability of the bookbinding device,
The width of the apparatus can be reduced as compared with the apparatus that discharges in the lateral direction of the apparatus. Further, since the bound sheet bundle is discharged to the sheet discharge tray 202 on the front side of the apparatus, the sheet bundle can be taken out with a smaller operation as compared with the related art in which the sheet discharge tray is provided in the lateral direction of the apparatus. Furthermore, by simply folding the cover sheet C in half toward the sheet bundle S, both the front and back surfaces of the sheet bundle S can be covered with the cover sheet C, and the appearance of the bound sheet bundle can be improved. Since the bent portion at the tip of the needle 304 is also covered with the cover C, it is necessary to prevent the finger portion from being damaged by this bent portion, to prevent another object from being caught in the bent portion, and to prevent the needle from easily coming off. Can improve the quality of bookbinding.

FIGS. 34 to 38 are views showing a second embodiment of the bookbinding apparatus according to the present invention, and show an example in which the structure of the sheet post-processing apparatus 3 is different from that of the above-described example. In the post-processing device 3 according to the second embodiment shown in FIG.
The sheet entered from 01 is discharged to the discharge tray 1303 by the staple switching claw 1302 constituting the conveying means 1300 or sent to the conveying path 1304 on the finish tray 1306 side. The conveying means 1300 for carrying (and placing) the paper on and out of the staple tray 1306 includes a sheet receiving port 1301, a staple switching claw 1302, a conveying path 1304, an alignment brush 1305, a lift belt 1309, and a lift hook 1310. . The sheets that have passed through the staple transport path 1304 are aligned in the staple tray 1306 by the alignment brush 1305. Also,
The position of the sheet bundle S can be changed up and down by a back fence 1308, so that the binding position in the sheet conveying direction is adjusted.

More specifically, as shown in FIG. 35, the aligning brush 1305 and the jogger 13 are arranged around the staple tray 1306.
07 and a back fence 1308 are provided, and the aligning brush 1305 discharges the paper from the conveyance path 1304 to the staple tray 1306 side, and the paper is fed to the back fence 1308.
Has the role of aligning to the side. Also, this alignment brush 1305
Also prevents the paper on the staple tray 1306 from being pushed up by the paper carried out of the transport path 1304. The jogger 1307 is supported by a jogger guide 1312, and a timing belt 1313 provided in parallel therewith.
And is drivingly connected to a jogger motor 1314. The rotation of the jogger motor 1314 causes the jogger to rotate.
1307 is moved to align the paper in the horizontal direction (the front-rear direction of the apparatus). Although the position of the jogger 1307 varies depending on the size of the sheet, the position of the jogger is determined by an output signal of a jogger home sensor (not shown) and the number of movement pulses of the jogger motor 1314. The same applies to the positioning of the lift belt 1309. As shown in FIG. 36, the rotation member 1321 is rotated by the lift hook 1310 to release the light shielding state of the optical sensor 1322 at the predetermined rotation position, thereby setting the reference position. Is determined, and the number of drive pulses of the belt drive motor is counted. Although not shown, the same reference position is set for the back fence 1308.

Reference numeral 1400 denotes a staple unit (stapling unit) which constitutes a binding means together with a staple receiving portion (not shown) (for example, the same as the staple receiving portions 306a and 306b). The staple unit 1400 includes two staple guides. 1401, 14
02 in the front-rear direction along a predetermined position (for example, 2
Section) can be stapled. FIG.
7. As shown in FIG. 38, the staple unit 1400
Inside the staple unit 1450 that can move up and down, a slide screw 1403 that supports it, and a staple unit 14
It has a guide rod 1404 for guiding the 50 in the vertical direction, and a staple vertical motor 1405 for moving the staple unit 1450 in the vertical direction. The staple portion 1450 is provided with a striking member 1451 sandwiched between the stapling portion front surface 1452 and the holding member 1453. The needle 1461 is driven up and down by the rotation of the slide screw 1457. Further, the slide screw 1457 is connected to the staple motor 14 via a gear step 1459.
It is designed to be driven to rotate at 58.

The needle pushed downward by the striking member 1451
1461 is the finish tray 400
The leading end of the staple 1461 is penetrated by the staple holder, and the stapling of the sheet bundle S is completed. Also, staple unit
Sheet bundle S stapled together with cover C by 1400
Is lifted in a staple tray 1306 by a lift hook 1310 provided on a lift belt 1309, and is discharged to a staple discharge tray 1311.

On the other hand, at the time of stapling, the staple up / down motor 1405 is driven in accordance with each operation of carrying in, placing, binding and carrying out the sheet of the post-processing device 3, whereby the staple unit 1400 (stapling unit) is driven. It stops at three stop positions during one binding operation. The three stop positions are defined as a standard position in which the staple motor 1458 is driven in the other direction (reverse rotation drive), the hitting member 1451 is raised, and the staple unit 1450 is most separated from the staple tray 1306 (a predetermined interval, for example, 35 mm). The position and the microswitch 1406 (standby position detecting means) provided on the lower surface of the staple unit 1450 are brought into contact with the uppermost sheet of the sheet bundle S to be switched ON / OFF (for example, ON), and the staple unit 1450
Is in the standby position where the staple motor approaches the sheet bundle S, and the staple motor 14
Reference numeral 58 denotes a binding position in which the hitting member 1451 rotates in the one direction and the stapling member 1451 strikes out the staple 1461 to staple the sheet bundle S. When the micro switch 1406 is turned on, the staple up / down motor 1405 stops, and the staple unit 1450 stops at the standby position.

In the standard position, even when the speed of feeding the paper onto the staple tray 1306 is increased, the paper does not contact the lower portion of the staple unit 1400. In the standby position, the staple unit 1400 is close to the sheet bundle S in a state where there is no problem in arranging (jogging) the sheet bundle S stacked on the staple tray 1306, and the staple unit in the binding position. The 1400 hitting point member 1451 is closest to the staple receiving portion, and the tip of the ejected staple 1461 is bent by the staple receiving portion to bind the sheet bundle S. When the staple unit 1450 stops at the standby position, the lower surface of the staple unit 1450
The sheet carry-in guide portion 1307a (guide plate) of No. 07 is located closer to the sheet placement surface than the portion closest to the sheet placement surface of the staple tray 1306. That is, at the standby position, the gap between the sheets of the sheet bundle S is minimized. In this state, by performing the aligning operation by the jogger 1307, the plurality of sheets can be aligned accurately at the predetermined position.

As described above, also in the present embodiment, the staple unit and the staple receiving portion constituting the binding means are sandwiched between the paper conveyance track surfaces of the conveyance means 1300 including the paper mounting surface of the staple tray 1306. They are provided so as to face each other. Therefore, the binding means including the staple unit 1400 and the staple receiving portion can be arranged in the horizontal projection plane of the staple tray 1306, and the size can be reduced by reducing the installation area. In addition, the staple unit 1450 moves to the standard position, the standby position, and the binding position in response to the operations of loading, placing, binding, and unloading the paper, so that when the paper is loaded, the staple unit 1400 and the staple receiving unit are moved. Sufficient intervals can be secured to prevent jamming, and the speed of loading each sheet can be increased. Furthermore, since the stapling unit 1400 has a vertically divided structure, there is no restriction on the binding position with respect to the sheets, and the standby position is detected by the micro switch 1406 that contacts the top sheet of the sheet bundle S, so that the standby position can be detected simply and accurately. Becomes possible.

Further, since the staple portion 1450 at the standby position is located closer to the staple tray 1306 than the lowermost portion of the carry-in guide portion 1307a of the jogger 1307, a stable binding operation can be quickly performed after jogging. Further, when the staple unit 1450 of the staple unit 1400 is at the standby position or the binding position, the operation of preventing the conveyance unit 1300 from loading and unloading the paper onto the staple tray 1306 can also prevent a malfunction. it can.

[0062]

According to the first aspect of the present invention, the first member and the second member of the binding means are opposed to each other with the sheet conveyance track surface of the conveyance means including the sheet placement surface interposed therebetween. provided, wherein the first member, carrying the paper, placing, in response to each operation of the stitching and unloading, the standard position, the standby position, so that so as to move to the binding position, place the binding means inwardly To reduce the size of the bookbinding apparatus .
A sufficient space between the member and the second member can be ensured to increase the speed of loading each sheet. Further, since the binding means has a divided structure, the restriction on the binding position can be eliminated.

According to the second aspect of the present invention, the first part
Since the standby position detecting means for detecting that the material has contacted the uppermost sheet is provided, it is possible to easily and accurately detect the standby position. According to the third aspect of the present invention, the standby position is set such that the first member of the binding unit guides the sheet on the placing unit and is closer to the sheet placing surface than the portion closest to the sheet placing surface of the guide plate. , A stable binding operation can be performed.

According to the fourth aspect of the present invention, the binding means
When the first member is at the standby position or the binding position, the carrying-in or carrying-out operation of the sheet onto the placing means by the carrying means is prohibited, so that a malfunction can be prevented beforehand.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an overall configuration of a first embodiment of a bookbinding apparatus according to the present invention.

FIG. 2 is a plan view of an operation display unit in FIG.

FIG. 3 is an enlarged view of a main part of a liquid crystal display unit in FIG. 2;

FIG. 4 is a perspective view of a sheet bundle bound by the copying machine in FIG. 1;

FIG. 5 is a diagram showing a processing flow of each key related to bookbinding of the copying machine in FIG. 1;

FIG. 6 is a diagram showing a processing flow following the connector A in FIG. 5;

FIG. 7 is a diagram showing a processing flow following the connector B in FIG. 5;

FIG. 8 is a diagram showing a processing flow following the connector C in FIG. 5;

FIG. 9 is a block diagram illustrating a configuration of a control unit of the circulation type document feeder in FIG. 1;

FIG. 10 is a diagram illustrating an original size detection operation of the recirculating original feeder in FIG. 1;

11 is a perspective view of a main part of a final document detection mechanism of the circulation type document feeder in FIG. 1;

12 is a diagram illustrating a detection operation of a last original detection mechanism in FIG.

13A and 13B show timings of document feeding / discharging, sheet feeding, and document exposing of the copying machine in FIG. 1, wherein FIG. 13A is a timing chart of the first copy, and FIG. 13B is a timing chart of the second copy; It is a timing chart.

FIG. 14 is a perspective view of a main part of a jogging unit in FIG. 1;

FIG. 15 is a front view of a main part of the jogging unit in FIG. 1;

FIG. 16 is an explanatory diagram of a jogging operation of the jogging unit in FIG.

FIG. 17 is an explanatory diagram of a sheet bundle discharging operation of the jogging unit in FIG. 1;

FIG. 18 is a perspective view of a main part of a staple unit in FIG. 1;

FIG. 19 is an external perspective view showing a discharge unit of the post-processing apparatus in FIG.

20 is a block diagram illustrating a configuration of a control unit of the post-processing device in FIG.

21 is a diagram showing a processing flow of a bookbinding command of the post-processing device in FIG. 1;

FIG. 22 is a diagram illustrating a processing flow following the connector C1 in FIG. 21;

FIG. 23 is a diagram illustrating a processing flow following the connector C2 in FIG. 21;

24 is a diagram illustrating a processing flow following the connector C3 in FIG. 21;

FIG. 25 is a diagram showing a processing flow following the connector C4 in FIG. 21;

26 is a diagram illustrating a processing flow following the connector C5 in FIG. 21;

FIG. 27 is a diagram illustrating a processing flow following the connector C6 in FIG. 21;

FIG. 28 is a diagram illustrating a processing flow following the connector C7 in FIG. 21;

FIG. 29 is a diagram illustrating a processing flow following the connector C8 in FIG. 21;

FIG. 30 is a diagram illustrating a staple position of the post-processing device in FIG. 1;

FIG. 31 is a diagram showing a processing flow at the time of stapling of the post-processing apparatus in FIG. 1;

32 is a diagram showing speed waveforms of a side fence and an end fence in FIG.

FIG. 33 is an explanatory diagram of a stop position at the time of discharging the rear side fence in FIG. 14;

FIG. 34 is a sectional view showing a second embodiment of the bookbinding apparatus according to the present invention.

FIG. 35 is a perspective view around the staple tray in FIG. 34;

FIG. 36 is an explanatory diagram of a positioning method of the lift belt in FIG. 34;

FIG. 37 is a front sectional view of a stapling portion of the staple unit in FIG. 34;

38 shows a staple unit in FIG. 34, (a) is a side sectional view thereof, and (b) is a front sectional view thereof.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Copier main body (image forming apparatus) 2 Circulating original feeder 3 Post-processing apparatus (bookbinding apparatus) 100 Jogging part 103, 104 Side fence (alignment means, conveyance means) 200 Discharge part 300 Staple part 301 Stapler (stapling means) ) 302 Stapler body ( first member ) 302a Driving part 302b Needle storage part (guide plate) 304 Needle 306a, 306b Needle receiving part (second member) 400 Finish tray (placement means) 500 Operation display part 800 Bookbinding control part 910 Loading means (transporting means) 1300 Transport means 1306 Staple tray (placement means) 1307 Jogger (alignment means) 1307a Paper loading guide section (guide plate) 1308 Back fence 1400 Staple unit 1450 Staple section 1405 Staple vertical motor 1451 Dot member 1461 Needle S Paper bundle C Cover

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Fumio Kurusumi 1-3-6 Nakamagome, Ota-ku, Tokyo Inside Ricoh Company Limited (72) Inventor Takashi Seto 1-3-6 Nakamagome, Ota-ku, Tokyo No. Ricoh Co., Ltd. (72) Inventor Masago Kagita 1-3-6 Nakamagome, Ota-ku, Tokyo Inside Ricoh Co., Ltd. (58) Field surveyed (Int. Cl. ⁶ , DB name) B65H 37 / 04 B42B 4/00 B42C 1/12 G03G 15/00

Claims (4)

(57) [Claims] 1. A mounting means capable of stacking and stacking sheets, and loading the paper into the mounting means , or on the mounting means.
Conveying means for carrying out the placed paper stack from the mounting置手stage above, the first and second members which are disposed to face each other in between the predetermined mounting surface of the placement means Consisting of
The first member disposed on a predetermined mounting surface of the mounting means;
Is moved in the direction of the second member and is placed on the placing means.
Comprising a binding means for binding a location by the sheet bundle, wherein the first member, and the standard positions with respect to a predetermined mounting surface of the placement means separating <br/> predetermined interval, before described置手rows above Placed on
A standby position close to or in contact with the upper surface of the sheet on which the previous described
Movable in the binding position for binding the placed paper on location means
A bookbinding device characterized by the ability to function . 2. The method according to claim 1 , wherein the first member is placed on the first member.
Detects contact with the top surface of the uppermost sheet placed on the means
2. The bookbinding apparatus according to claim 1, further comprising a standby position detecting means for performing the operation. Wherein the first member is a position in the mounting surface side of the most proximate site to the mounting surface of the guide member for guiding the sheet on the placement means, and said standby position The bookbinding device according to claim 1 or 2, wherein: When wherein said first member is in the standby position or the stapling position, according to claim 1 or 2, characterized in that prohibiting carry or transportable <br/> out operation of the sheet by the conveying means or 3. The bookbinding device according to 3.