JP3137679B2 - Image forming processing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a sequentially storing the sheets discharged from the image forming apparatus such as a copying machine, sorting, or a post-processing apparatus that performs a binding, an image type Narusho physical device that combines an image forming apparatus .

[0002]

2. Description of the Related Art In recent years, a post-processing apparatus for processing sheets discharged from an image forming apparatus has been configured as an independent apparatus by increasing the processing speed of the image forming apparatus, employing a large-capacity sheet feeding apparatus, and the like. Is used as a large-sized image forming apparatus by closely connecting the image forming apparatus to an image forming apparatus. As a post-processing device of such an apparatus, for example,
Japanese Patent Laid-Open No. 7-4855 discloses a paper collating and sorting apparatus which uses a Geneva wheel to increase the distance between a bin tray for receiving paper and a bin tray thereabove to facilitate paper storage. Japanese Patent Application Laid-Open No. 77869 discloses an improved classification device in which the interval between bin trays is similarly increased by using a helical cam. Typically,
In the post-processing apparatus, a plurality of transport paths for transporting the sheets received from the image forming apparatus are usually provided, and can be switched according to the usage of the post-processing apparatus. If a paper jam occurs in the middle of this transport path, sensors are provided at key points in each transport path to detect the intrusion or passage of paper. Each jammed paper path is detected and a paper jam is displayed on the display panel, and the operator can easily recognize the position where the jammed paper removal operation should be performed by visually recognizing the display. According to the determination, the operator opens the door of the post-processing apparatus and rotates the guide plate forming the conveyance path in which the paper jam has occurred to remove the jammed paper.

[0003]

However, in such a conventional technique, the transport path is generally disposed between various devices housed in the device or between the device and the housing of the device, and furthermore, a guide plate is provided. It is difficult to secure a sufficient working space even by rotating the hand, and inserting a hand into a narrow space to remove jammed paper is a troublesome and difficult task that may stain the hands and clothes of the operator. there were. In addition, since the transport path has a curved portion, it is necessary to take a large movement space for the rotation by that amount. On the other hand, it is necessary to reduce the extra space as much as possible in order to reduce the size of the entire device. Therefore, it has become increasingly difficult to design a transport path while securing a sufficient movement space for rotation. SUMMARY OF THE INVENTION The present invention has been made to solve such a problem of the conventional example, and makes it easy to remove jammed paper in the middle of a conveyance path of paper discharged from an image forming apparatus without soiling the hands and clothes of an operator. It is another object of the present invention to provide an image forming processing apparatus which can perform the image forming process at a reduced speed and can reduce the size of the apparatus.

[0004]

To solve the above SL problems SUMMARY OF THE INVENTION, the first means, the image forming apparatus, is connected to the sheet discharge port side of the image forming apparatus, discharged from the discharge port An image forming apparatus comprising a stacking tray and a bin tray for storing sheets, and a post-processing device attached to the image forming apparatus, wherein a discharge port from the discharge port of the image forming apparatus to the stacking tray; The post-processing apparatus includes a conveying unit including a conveying roller pair that conveys the sheet to the bin tray and a conveying path, and the post-processing apparatus can be separated into a post-processing apparatus main body side and an image forming apparatus side with the conveying path as a boundary. Accordingly, when the post-processing device is separated, the first guide plate on the image forming device side and the second guide plate on the post-processing device main body forming the conveyance path are separated from each other and form a pair. Transport Over La also spaced, said transport path, characterized in that it is all open. Second means, in the image forming apparatus of the same premises as the first means, the image type
Paper discharge port from the discharge port of
A pair of transport rollers that transport the paper to the bin tray
And a sheet aligning means for aligning the sheet after discharging the sheet, and the post-processing device is provided with a post-processing device at the boundary of the transport path.
The main body side and the image forming apparatus side can be separated,
When the post-processing device is separated, the sheet aligning means presses and holds the sheet. The third means is an image forming apparatus based on the same premise as the first means .
Conveyance that conveys to the paper exit and the paper exit to the bin tray
After the sheet discharged on with <br/> the post-processing apparatus comprising a conveying means consisting of rollers and the conveying path, the sheet aligning is provided sheet aligning means performs, the conveying path is the post-processing apparatus
Can be separated into the post-processing device body and the image forming device side
The sheet aligning means performs an aligning operation when the post-processing apparatus main body is separated from the image forming apparatus and connected again.

[0005]

In the first means, the image-formed sheet discharged from the image forming apparatus is conveyed to the collecting tray or bin tray by the conveying means. The post-processing apparatus minute
When separated, the first guide plate on the image forming apparatus side and the rear
When the second guide plate on the processing apparatus main body side is separated from each other
In both cases, the transport roller pair is also separated, and the transport path is opened.
You. As a result, a jam occurs in the middle of the transport path
Can be easily performed. Also, the second
In the means, the main body of the post-processing apparatus is connected to the side of the image forming apparatus.
When separated from the sheet, the sheets on the tray
Pressed by step and held aligned on tray
The vibration when the main body of the post-processing device is separated.
It is possible to prevent the sheet from being loosened. Further
In the third means, the main body of the post-processing apparatus is image-formed.
When the sheet is separated and reconnected,
The steps will realign the sheets on the tray, so
The processing unit has been separated by vibration when it was separated.
The sheets on the tray can be aligned.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. In the present embodiment, an image forming apparatus is constituted by a copier and a sheet processing apparatus which are rotatable about the hinge mechanism by being connected via a hinge mechanism. FIG. 1 is a schematic view showing a state in which the paper processing apparatus according to the embodiment is rotated to disconnect from the copier, FIG. 2 is a plan view of the same, and FIG. FIG. 6 is a front view of a main part showing the vicinity of a transport path at the time. First, FIG.
According to FIG. 3 and FIG. 3, a detachable state of a copying machine 200 for discharging a copy of a document in accordance with a known electrostatographic process, and a paper processing apparatus 100 for accumulating, sorting, or binding the discharged copies, The configuration near the conveyance path from the discharge port 50 to the stacking unit I or the sorting and binding unit II of the sheet processing apparatus 100 will be described. As shown in FIG. 2, the copying machine 200 and the paper processing apparatus 100 are mechanically connected by hinges 55 fixed to the vicinity of the respective rear edges. The copier 200 is rotated by rotating the processing device 100 in a counterclockwise direction.
Are fixedly connected to each other by a fixing tool (not shown). FIG. 3 shows the state at this time.
The conveyance path A from the discharge port 50 of the sheet processing apparatus 100 to the stacking section I of the sheet processing apparatus 100 and the conveyance path B to the sorting and binding section II include a guide plate 52 on the sheet processing apparatus 100 side and a guide plate 53 on the copying machine 200 side. The sheet formed at 54 and discharged from the copying machine 200 is transported along the transport path A or the transport path B according to the switching operation of the switching claw 51. 39, 40,
Reference numeral 41 denotes a lower driven roller, a transport roller, and an upper discharge roller provided on the sheet processing apparatus 100 side, respectively. Reference numerals 36, 42, 43, and 44 denote a lower discharge roller, an upper driven roller provided on the copying machine 200 side, respectively. Roller, transport roller and delivery roller pair. The lower discharge roller 36 and the lower driven roller 39 that contact each other, the pair of transport rollers 40 and 43, the upper discharge roller 41 and the upper driven roller 4
2 can rotate by pressing. Copier 20
For example, when the stacking mode is selected on the operation panel 0, a control signal is sent from the control device of the main body to the sheet processing apparatus 100, and the switching claw 51 rotates clockwise to move the conveyance path A. The sheet that has been opened and discharged from the copying machine 200 is conveyed along the conveyance path A, sent out by the upper discharge roller 41, and sequentially deposited on the accumulation tray 1a. Also, when the sorting or binding mode is selected on the operation panel,
The switching claw 51 rotates counterclockwise to open the conveyance path B, and the sheet discharged from the copying machine 200 is conveyed along the conveyance path B, sent out by the lower sheet discharge roller 36, and deflected. The bin tray 1 is discharged onto the bin tray 1 located at S, and the bin tray 1 is sequentially moved to perform sorting or binding processing described later. By the way, during the operation of the copier 200 and the paper processing apparatus 100, the transport path A or the transport path B
When the paper being conveyed causes a paper jam, the copier 200 and the paper processing apparatus 100 immediately stop operating, and indicate on the operation panel that a paper jam has occurred in the conveyance path A or the conveyance path B. Warning indicator lights up. Then, the operator releases the fixing of the sheet processing apparatus 100 to the main body of the copying machine 200 according to the warning display, and then rotates the sheet processing apparatus 100 clockwise about the hinge 55 as shown in FIG. To release from the position where the conveyance path with the main body of the copier 200 is formed. At this time, as shown in FIG. 1, the guide plate 52 on the paper processing apparatus 100 side and the guide plates 53 and 54 on the copier 200 side, and each pair of rollers disposed along the transport path A and the transport path B are mutually connected. A large space is left between them to create a space that facilitates the work of removing jammed paper. As described above, in this embodiment, it is not necessary to release the inside of the paper processing apparatus 100 for the paper jam removal operation, and when paper jam occurs after the delivery roller pair 44 of the copying machine 200 main body, At any time, the operation of rotating the paper processing apparatus 100 to release the paper processing apparatus 100 from the position where the conveying path is formed with the main body of the copying machine 200 may be performed. Therefore, the hands and clothes of the operator are not stained.

Next, the configuration and operation of the sheet processing apparatus 100 will be described in detail. 4 is a perspective view of the entire sheet processing apparatus, FIG. 5 is a plan view showing the vicinity of the bin tray, FIG. 6 is an explanatory view showing a biasing operation of the bin tray of the sheet processing apparatus, and FIG. FIG. The sheet processing apparatus 100 is configured as a post-processing apparatus capable of sorting copy sheets discharged from the copying machine 200 and continuously performing a plurality of sets of binding operations. First, an outline of the configuration of the sheet processing apparatus 100 will be described with reference to FIGS. Reference numeral 1 denotes a bin tray whose main surface is inclined toward the sheet receiving side, and a bin tray for receiving and storing sheets p carried in from the right side in each figure, and 10 (a, b) denotes the side of the sheet receiving side of the bin tray 1 and the opposite side. The slide cams are respectively extended to the front and rear side edges of the slide cam, and upper and lower surfaces are horizontally held in a loaded state. The bin trays 1 are stacked in multiple stages in the vertical direction, can be moved in the vertical direction in a multi-stage loading state by a vertical movement device described later, and can be moved up and down by a horizontal slide mechanism including a cam track described later in the biasing portion S. After moving a predetermined distance in the horizontal direction, upper stacking group 1
U and the lower loading group 1D can be separated. At the rear edge side of the bin tray 1, there is a sheet moving device 4, and at an opposing portion outside the front edge of the bin tray 1 located immediately below the upper stacking group 1 U, at one end of the sheet bundle P on the bin tray 1. A paper binding device 5 that fits and binds a staple, and a paper moving unit that holds a bundle of paper sheets P that are also aligned and stacked by a gripping mechanism, pulls out the binding position of the paper binding device 5, and pushes it back to the original position. 6 are provided (see FIG. 5). Hereinafter, each part of the sheet processing apparatus 100 will be described in detail. First, in the bin tray 1, 11 is a rolling roller groove having a substantially semi-cylindrical bottom surface provided on the upper and lower surfaces of each slide cam 10 so as to extend in the left-right direction in the figure.
3 is a pin 1 protruding from the front and rear edges of the slide cam 10a.
A trunnion 14 that is loosely fitted and rolls, a rear end aligning fence 14 that is bent and formed on the paper receiving side of the bin tray 1 and aligns the trailing end position of the paper, and 15 passes through a jogger wire of a paper moving device 4 described later. The insertion hole 16 is a cutout portion into which a holding piece of a holding mechanism of the paper moving unit 6 described later is loosely inserted. A spherical rolling roller 31 is fitted into the rolling roller groove 11 by being sandwiched between the slide cams 10 of the upper and lower bin trays 1.

Next, the vertical moving device 3 and the vertical moving device 3
The horizontal slide mechanism for moving the bin tray 1 along the slide cam 10 using the vertical driving force of the first embodiment will be described. Reference numerals 2f and 2r denote a front frame and a rear frame. In the corresponding portions of the front frame 2f and the rear frame 2r, the upper vertical portion 21U and the lower vertical portion 2
An elongate cam track 21 composed of 1D and an offset portion 21S therebetween and a guide hole 22 extending vertically on the opposite side are formed respectively, and the offset portion 21S of the cam track 21 is vertically downward from the lower end of the upper vertical portion 21U. Part 2
It is a skewed portion that smoothly skews from the paper receiving side toward the 1D upper end. Each bin tray 1 and a trunnion 6 provided on a support member of a first bin drive bar, which will be described later, are loosely fitted in the cam track 21, and the cam track 21
You will be guided along. Lower vertical part 2 of cam track 21
The rotating shaft 23 is mounted on a 1D upper part via a bearing,
The rotation shaft 23 outside the front frame 2f and the rear frame 2r.
Take-up pulleys 24 are fixed to both ends of the pulley. A take-up gear 25 is fixed to the rotation shaft 23 outside the rear take-up pulley 24, and meshes with a reduction gear 26 constituting a meshing gear group. A vertical movement motor 27, which is a drive source of the vertical movement device 3, is provided at the rear of the rear frame 3r, and the driving force of the vertical movement motor 27 is transmitted to the take-up gear 25 via a meshing gear group. First and second direction change pulleys 28 and 29 are provided below the lower vertical portion 21D of the cam track 21 and above the guide hole 22, respectively.
Are supported on the outside of the front frame 2f and the rear frame 2r, respectively. 17a and 17b are first and second bin drive bars, respectively, 30 is a suspension wire, and one end of the suspension wire 30 is wound around the take-up pulley 24;
The other end is fixed to both ends 19b of the second bin driving bar 17b via the first and second direction conversion pulleys 28 and 29, and further, the first bin driving between the winding pulley 24 and the first direction conversion pulley 28 is performed. The bar 17a is fixed to both ends 19a. That is, the suspension wire 30 suspends a group of bin trays stacked in multiple stages thereon via the first and second bin drive bars 17a and 17b so as to be able to move vertically in parallel. First and second support members 18a and 18b supporting a group of bin trays are fixed near both ends of the first and second bin drive bars 17a and 17b, respectively. Rolling roller grooves 11 extending in the direction are provided, and the bin tray 1 group is supported via the rolling rollers 31 fitted in the rolling roller grooves 11. The pin 2 protruding from the outer side surface of the first support member 18a
The trunnion 13 is also loosely fitted to 0 so that it can roll. The trunnions 13 of the first support members 18a are also fitted into the cam tracks 21 together with the trunnions 13 of the bin trays 1. When the trunnions 13 move vertically along the cam tracks 21, they move integrally. Reference numeral 32 denotes a jogger arm that is driven by a driving mechanism (not shown) and rotates in a counterclockwise direction. Reference numeral 33 denotes a rear end of a sheet p stored on the bin tray 1 with upper and lower ends stretched between the front ends of the jogger arm 32, respectively. Is a jogger wire that strikes the front edge of the bin tray 1 and aligns the paper. The jogger wire forms a paper aligning device 4 together with the drive mechanism. The lower paper discharge roller 36 of the copying machine 200 connected to the front stage of the paper processing apparatus 100 is disposed at a position facing the paper receiving side edge of the bin tray 1 located at the offset portion S as shown in FIG. Driven by the paper motor 37, the copy paper p conveyed along the guide plates 52, 53 and 54 together with the lower driven roller 39 is discharged onto the bin tray 1 (see FIG. 4).

The operation of the sheet processing apparatus will be described below. When a print start button of the copying machine 200 (not shown) is pressed, an image is recorded on the paper p, and then the lower discharge roller 3
6. The sheet processing device 10 is transported by the lower driven roller 39.
It is sent to 0. On the other hand, when a signal for selecting a predetermined bin tray 1 is sent from the copier 200 to the sheet processing apparatus 100 and the sheet processing apparatus 100 receives the signal, the vertical movement motor is moved so that the designated bin tray 1 is located at the biasing portion S. 27 rotates forward or backward by a predetermined number of rotations to move the bin tray 1 group up and down via the suspension wire 30. The bin tray 1 group moves vertically in the vertical direction by the guide of the trunnion 13 disposed on the front and rear end edges of the slide cam 10a along the cam track 21. For example, the case where the designated bin tray 1 is in the lower stacking group 1D will be described. The bin tray 1 group includes the first and second support members 18a, 18 of the first and second bin drive bars 17a, 17b.
b and lifted up to the suspension wire 30 for a predetermined distance. When the trunnion 13 of the bin tray 1 reaches the offset portion 21S of the cam track 21 while rolling, the ascending portion 21S skewed toward the paper receiving side is prevented from rising vertically upward, and along the skewed edge of the offset portion 21S. To move diagonally upward on the paper receiving side. The bin tray 1 corresponds to the above movement of the trunnion 13 and
It is supported by a rolling roller 31 that rolls inside and is slid in the horizontal direction on the sheet receiving side by the rolling. When the trunnion 13 reaches the upper right end of the offset portion 21S, it is guided vertically upward along the upper vertical portion 21U of the cam track 21. In this way, the trunnions 13 of the bin tray 1 sequentially shift from the lower vertical portion 21D to the upper vertical portion 21U, and the horizontal movement of the bias portion S of the bin tray 1 is performed accordingly. Eventually, when the designated bin tray 1 reaches the bias portion S, the vertical movement motor 27 stops rotating, and the preparation for receiving the paper p is completed. At this time, the downstream edge of the bin tray 1 located above the offset portion S moves upstream by the horizontal movement distance H from the downstream edge of the bin tray 1 located below the offset portion S by the above-described offset operation. Therefore, the state on the stacking surface of the bin tray 1 in the receiving state of the sheet p at the biasing portion S can be visually recognized from the downstream side of the sheet processing apparatus 100, and for example, the image forming state and the stacking state of copy sheets can be confirmed. There are advantages such as. As described above, in the present embodiment, the operation of expanding the interval between the bin trays 1 at the biasing portion S is caused by the trunnion 13 being guided by the cam track 21 with the vertical movement of the group of bin trays 1 by the vertical movement device 3. Since the bin tray 1 is only moved horizontally, the vertical position of the bin tray 1 does not change even when the bin tray 1 is biased. That is, the vertical interval G between the bin trays 1 is always kept constant, and the slide cams 10 serving as the support portions between the bin trays 1 are not separated from each other. As shown in FIG. 7, the lower stacking group 1D of the bin tray 1 described above.
The horizontal movement of the distance H at the time of shifting from the to the upper stacking group 1U causes the interval between the bin trays 1 to be shifted from the interval GV in the upper stacking group 1U or the lower stacking group 1D by the bias portion S.
Is increased in accordance with the horizontal movement distance of the bin tray 1 and the inclination of the offset portion 21S of the cam track 21. As described above, the lower paper discharge roller 36 is disposed to face the paper receiving side edge of the bin tray 1 at this position, and the paper p is discharged during the enlarged bin tray 1 interval GS, and the paper p is discharged by its own weight. It strikes against the rear end alignment fence 14 and is aligned. In addition, if the inclination angle of the offset portion 21S is small, the interval GS between the bin trays 1 becomes large, but it becomes difficult to smoothly transition from the lower vertical portion 21D of the trunnion 13 to the upper vertical portion 21U. If the inclination angle of the offset portion 21S is too large, the interval GS of the bin tray 1 of the offset portion S
Cannot be taken sufficiently, so that an appropriate angle may be set in consideration of these balances.

When the trailing edge of the sheet p is aligned, the driving of the sheet aligning device 4 is started, and the jogger arm 33 is swung by a predetermined angle in the counterclockwise direction (arrow s), so that the jogger wire 33 is inserted into the insertion hole 15. The paper p is moved in an arc in the horizontal direction, and the rear end of the paper p stored on the bin tray 1 is hit to align the paper (see FIG. 5). By this paper alignment operation, the paper p is hit against the front edge of the bin tray 1 and the front edge is aligned. When a signal for instructing the next bin tray 1 is sent to the paper processing apparatus 100 in accordance with the operation of discharging the next paper p from the copying machine 200, the vertical movement motor 27 rotates by a predetermined number of rotations, and the first rotation is performed. And second bin drive bar 17
The bin trays 1 at the top of the lower stacking group 1D are moved to the lowermost position of the upper stacking group 1U by lifting a and 17b. By the lifting operation of the bin tray 1 group by the vertical moving device 3, a wide interval GS is formed between the bin tray 1 at the top of the lower stacking group 1D and the bin tray 1 immediately below, and the lower stacking group is formed. The interval between the bin tray 1 at the top of 1D and the bin tray 1 at the bottom of the upper stacking group 1U is a narrow GV, and when the paper p is bent, or when a certain amount of paper has already been bent. When the bundle P has been stored, the paper p is pressed against the lower surface of the bin tray 1 at the bottom of the upper stacking group 1U and rolled. In this way, when the paper sorting operation is completed by the intermittent lifting operation of the bin tray 1 group by the series of the vertical moving devices 3 and the storing operation of the paper p discharged from the copier 200 on the bin tray 1, the copier 200 continues. When the instruction to execute the binding operation of the sheet bundle P is received, the process proceeds to the sheet binding operation by the sheet binding device 5 described below. First, the vertical movement motor 27 is rotated to move the bin tray 1 group upward or downward until the bin tray 1 loaded with the uppermost sheet bundle P is positioned at the lowest position of the upper stacking group 1U. Next, the holding piece 34 of the paper moving unit 6 is driven by the paper moving motor 35 to enter the notch 16 of the bin tray 1 with its tip open, and closes the tip of the holding piece 34 to hold the sheet bundle P. And pull it out to the binding position of the paper binding device 5. One end of the sheet bundle P is bound by the sheet binding device 5 while being held by the holding piece 34. When the binding process for the sheet bundle P is completed, the sheet moving motor 35 rotates in the reverse direction, and pushes the sheet bundle P back to the original position. The configurations of the sheet binding device 5 and the sheet moving unit 6 are the same as those in the conventional example, and thus the description thereof is omitted.

When a paper jam occurs in the transport path A or the transport path B during the sorting operation of the copy paper p sent from the main body of the copying machine 200, the paper aligning device 4 is driven, and the jogger wire 33 is turned on in FIG. In the direction of arrow s, and holds the aligned sheet bundle P discharged onto each bin tray 1 at its side end. Then, according to the warning displayed on the operation panel of the copying machine 200, the operator rotates the paper processing apparatus 100 to release the connected state of the copying machine 200. At this time, This prevents the bin tray 1 from vibrating and the aligned sheet bundle P stacked thereon being loosened. When the paper processing apparatus 100 returns to the connection state with the copying machine 200 after the jammed paper removing operation is completed, the driving of the paper alignment apparatus 4 is also released, and the jogger wire 3 holding the paper bundle P is released.
3 returns to the initial position. As a method for preventing the aligned paper bundle P from being separated by vibration when the paper processing apparatus 100 is rotated during the jammed paper removal operation,
Regardless of the operation of the above-described embodiment, when the paper processing apparatus 100 is rotated in the reverse direction and connected to the copying machine 200 after completion of the jammed paper removing operation, the paper aligning apparatus 4 is driven, and each bin tray is driven. The upper sheet bundle P may be aligned again. In the paper processing apparatus 100 according to the present embodiment, the suspension system using the suspension wires 30 is employed as the vertical movement device for the group of bin trays. However, other suspension devices may be used, and the rolling rollers 31 are necessarily required. Instead, it may be formed by fitting concave and convex grooves formed on the upper and lower surfaces of the cam track 10. Further, although the rolling rollers 31 are spherical, they may be cylindrical. Further, the jogger wire for aligning the sheets p stored in the bin tray 1 may be a bar-shaped jogger bar.

[0012]

According to the invention of claim 1 Symbol placement as described above, according to the present invention, it separates the post-processing apparatus main body from the image forming apparatus
The transport path, including the transport roller pair, is completely open.
Therefore, it is possible to easily remove the sheet clogged in the middle of the conveyance path without soiling the hands and clothes of the operator, and to reduce the size of the apparatus. According to the second aspect of the present invention, it separates the post-processing apparatus main body from the image forming apparatus
When the, from the one end of the sheet on the tray to be pressed by the sheet aligning unit, the sheet that is aligned on the tray
It is possible to prevent loosening due to vibration during separation . According to the third aspect of the present invention, when the post-processing apparatus main body side is separated from the image forming apparatus side and then re-connected ,
Since to perform again align work sheets on the tray by chromatography preparative aligning means, it is possible to match the sheet on the bin tray which had drainage in vibration during separation.

[Brief description of the drawings]

FIG. 1 is a schematic diagram illustrating a state in which a paper processing apparatus according to an embodiment of the present invention is rotated to release coupling with a copying machine.

FIG. 2 is a plan view of the same.

FIG. 3 is a main part front view showing the vicinity of a conveyance path when the copying machine and the sheet processing apparatus are combined.

FIG. 4 is a perspective view of the entire sheet processing apparatus according to the embodiment of the present invention.

FIG. 5 is a plan view near the bin tray of the sheet processing apparatus.

FIG. 6 is an explanatory diagram illustrating a biasing operation of a bin tray of the sheet processing apparatus.

FIG. 7 is an explanatory diagram showing an enlarged biasing portion of the sheet processing apparatus.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 bin tray 1 a stacking tray 3 vertical moving device 4 paper shifting device 5 paper binding device 10 slide cam 11 rolling roller groove 13 trunnion 17 drive bar 21 cam track 31 rolling roller 36 lower discharging roller 41 upper discharging roller 51 switching claw 52, 53, 54 Guide plate 100 Paper processing device 200 Copier

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65H 39/11

Claims (3)

(57) [Claims] 1. An image forming apparatus, comprising: an accumulation tray and a bin tray connected to a sheet discharge port side of the image forming apparatus and configured to store the sheets discharged from the discharge port;
In the image forming apparatus configured by a post-processing device attached to the image forming apparatus, a pair of conveying rollers configured to convey from a discharge port of the image forming apparatus to a discharge port to the accumulation tray and a discharge port to the bin tray And a conveying means comprising a conveying path, the post-processing apparatus can be separated into a post-processing apparatus main body side and an image forming apparatus side with respect to the conveying path, and when the post-processing apparatus is separated, The first guide plate on the image forming apparatus forming the transfer path and the second guide plate on the post-processing apparatus main body are separated from each other, and the pair of transfer rollers are also separated, and the transfer paths are all opened. An image forming apparatus. 2. An image forming apparatus, comprising: a stack tray and a bin tray connected to a sheet discharge port side of the image forming apparatus and configured to store the sheets discharged from the discharge port;
In the image forming apparatus configured by a post-processing device attached to the image forming apparatus, a pair of conveying rollers configured to convey from a discharge port of the image forming apparatus to a discharge port to the accumulation tray and a discharge port to the bin tray The post-processing apparatus is provided with sheet aligning means for aligning the sheet after discharging the sheet, and the post-processing apparatus is provided with a post-processing apparatus main body side and an image formed at the transport path. An image forming apparatus which is separable from the forming apparatus and wherein the sheet aligning means presses and holds the sheet when the post-processing apparatus is separated. 3. An image forming apparatus, comprising: a stacking tray and a bin tray connected to a sheet discharge port side of the image forming apparatus and configured to store the sheets discharged from the discharge port;
In the image forming apparatus configured by a post-processing device attached to the image forming apparatus, a pair of conveying rollers configured to convey from a discharge port of the image forming apparatus to a discharge port to the accumulation tray and a discharge port to the bin tray The post-processing apparatus is provided with sheet aligning means for aligning the sheet after discharging the sheet, and the post-processing apparatus is provided with a post-processing apparatus main body side and an image formed at the transport path. Image forming apparatus, wherein the sheet aligning means performs an aligning operation when the post-processing apparatus main body is separated from the image forming apparatus and reconnected. Processing equipment.