JP2669657B2 - Sheet post-processing equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sort mode key for selecting a sort mode for receiving sheets and collating into a plurality of bins, and a stack mode for selecting a stack mode for receiving sheets and sorting into a plurality of bins. The present invention relates to a sheet handling apparatus having a post-processing function, such as a copying machine, a facsimile, and a printer, which has a key and post-processes the collected or sorted sheets.

2. Description of the Related Art Sorters for collating or sorting sheets into a plurality of bins used in copying machines and the like have been conventionally known. Then, after such collating or sorting is performed, the stapling process (the process of driving and bundling the needles) and the punching process (perforation with a punch) of the sheet bundle stored in each bin as necessary.
It is convenient if such post-processing can be performed, and the appearance of such a sheet handling apparatus is desired.

The sheet handling apparatus as described above is provided with a post-processing unit having a stapling function in the sorter, and moves the post-processing unit to the position of the bin where the sheet bundle to be post-processed is placed. A device for stapling the sheet bundle can be considered.

In this case, after sorting or sorting by the sorter, an operation key for performing the above-described post-processing operation is provided on the operation panel, and a stapling process or the like is started by pressing the operation key. , The number of post-processing keys and related switches will increase,
If the post-treatment is not carried out, the operation panel becomes complicated and the cost of the apparatus increases.

Therefore, an object of the present invention is to solve the above problems and provide a sheet handling apparatus with a post-processing function, which has a simplified operation panel, is easy to operate, and is low in cost.

Means for Solving the Problems The present invention provides a sorting mode selecting means for selecting a sorting mode for receiving sheets and sorting them into a plurality of bins, and a post-processing for performing a post-process on the sheets sorted on the plurality of bins. In a sheet post-processing apparatus having a post-processing mode selecting means for selecting a mode, the sorting mode selecting means and the post-processing mode selecting means comprise the same selecting means. It is characterized in that the sheets are sorted into a plurality of bins, and after the sorting is completed, the post-processing mode is selected by the selecting means to perform the post-treatment on the sheets sorted in the plurality of bins.

Operation According to the above configuration of the present invention, the sort mode key or the stack mode key is used to release the sort mode or the stack mode, and post-processing is performed by this release (in the embodiment shown below, FIG. 12 and FIG. An example of a control flow for performing such processing is shown in the figure), and it is not necessary to provide a special key for post-processing, and the display board can be simplified.

First, an example of the overall configuration of a copying apparatus, which is an example of a sheet handling apparatus to which the present invention is applied, will be described based on the side view shown in FIG.

In FIG. 1, reference numeral 1 denotes a fourth mirror of the exposure system,
2 is a dust-proof glass for preventing contamination of the lens, mirror, etc. by toner, 3 is an ADF (automatic document feeder), 4 is a contact glass, 5 is an eraser (erase lamp), 6
Is a charged charger, 7 is a photosensitive drum using a selenium photoconductor, 8 is a drum thermistor for detecting the surface temperature of the photosensitive drum 7, 9 is a discharge lamp, 10 is a lens, and 11 is a quenching charger (charger after cleaning). ), 12
Is a cleaning unit, 13 is a bias roller, 25 is a PC
C (charger before cleaning), 14 is an exposure illumination unit including a halogen lamp or the like, 15 is a first scanning mirror integrally forming a first carriage with the illumination unit 14 or the like, 1
Reference numerals 6 and 17 denote second and third mirrors forming a second carriage, 18 denotes a fixing unit for fixing the toner image transferred to the transfer sheet, 19 denotes a discharge direction of the transfer sheet after fixing by the fixing unit 18 and A reversing unit that controls the discharge surface, 20 is a sorter (with a post-processing function) that sorts transfer paper after discharge, 26 is a separation claw, 21
Indicates a conveyor belt. The post-processing function refers to processing such as stapling or punching with a punch.

Further, 22,23,24,33 are trays for stocking and supplying transfer paper, 22 is a double-sided paper feeding tray, 23 is a first paper feeding tray, 24 is a second paper feeding tray, and 33 is a third paper feeding tray. Paper tray, 29 is a paper feed roller unit, 30 is a vertical paper transport unit, 32 is a horizontal paper transport unit,
31 is a paper dust removing roller for removing paper dust from the transfer paper, 27 is a separation charger, 28 is a transfer charger, 35 is a registration roller, and 34 is a developer collection container for collecting old developer when replacing the developer. 36, a PTC (pre-transfer charger); 38, a drum heater for raising the temperature of the photosensitive drum 7; 37, a developing unit; 39, a toner cartridge for replenishing consumable toner; 2 shows a drum shaft that rotatably supports

Next, the operation of the copying apparatus having the above configuration will be briefly described. The photosensitive drum 7 is rotatably supported by the drum shaft 40 and rotates counterclockwise in response to a copy command or the like. At the same time as the rotation of the photosensitive drum 7, the charge removing lamp 9 and the PTC 3 are used so that the toner attached to the photosensitive drum 7 and the uneven potential do not reach the charging charger 6 and the developing unit 37.
6, separation charger 27, transfer charger 28, eraser 5, cleaning unit 12, bias roller 13, PCC2
5. The quenching charger 11 is driven. After passing through the cleaning unit 12 and the neutralizing lamp 9, the surface potential of the photosensitive drum 7 becomes zero.

The photosensitive drum 7 is driven by a main motor (not shown). At this time, the leading end of the image is a portion after the position where the control unit has passed the cleaning unit 12.

When the photosensitive drum 7 is rotated to the home position, the original placed on the contact glass 4 by the ADF 3 is scanned by the first carriage integrated with the first scanning mirror 15, the illumination unit 14, and the like. The reflected light image is the first scanning mirror
The image is formed on the photosensitive drum 7 via the second mirror 16, the third mirror 17, the lens 10, the fourth mirror and the dustproof glass 2.

After the photosensitive drum 7 is charged by the charging charger 6, light is applied to an unnecessary portion by an eraser, that is, an erase lamp 5, to form an image frame suitable for a transfer paper or a projected image. 7, a latent image is formed. At this time, the photosensitive drum 7 and the first carriage are driven at the same speed in order to obtain an image of the same size.

The line image on the photosensitive drum 7 is visualized as a toner image by the developing unit 37. In this case, a dark or light image can be obtained by applying a potential to the developing unit 37.

On the other hand, the two-sided paper tray 22, the first paper tray 2
3. The transfer paper stocked in the second paper feed tray 24 or the third paper feed tray 33 is sent by the paper feed roller unit 29 until a paper detection (not shown) is activated.

Next, at the paper feed timing, the paper feed roller unit 29 is operated again, and the transfer paper is sent to the registration roller 35 stopped in advance through the vertical paper transport unit 30 or the horizontal paper transport unit 32, and the toner image on the photosensitive drum 7 is transferred. The registration roller 35 is driven at the timing when the leading edge of the transfer paper and the leading edge of the transfer paper match.

The toner image on the photosensitive drum 7 is transferred to a transfer sheet by a transfer charger 28. At this time, the surface of the photoconductor 7 is very smooth, and therefore, the adhesion between the fitting drum 7 and the transfer paper is large. Decreases the adhesion with the transfer paper. Next, the transfer paper is separated from the photosensitive drum 7 by the separation claw 26, and the transfer paper thus separated is sent to the fixing unit 18 by the transport belt 21. The transfer paper sent to the fixing unit 18 is applied with heat and pressure to the toner here, whereby the toner image on the transfer paper is fixed on the transfer paper. Discharged to 20. When performing double-sided copying or the like, the sheet is discharged to the double-sided paper feed tray 22 via the reversing unit 19.

Since a small amount of the toner image remains on the surface of the photosensitive drum 7 after the transfer, the PCC 25 is operated, and the cleaning unit 12 is operated.
The surface is cleaned with a cleaning brush and a cleaning blade inside, and the surface potential is made constant by the next quenching charger 11 and static elimination lamp 9.

These control timings are mainly determined by the photosensitive drum 7
Or a reference pulse for driving the photosensitive drum 7.

Next, the configuration of the sorter 20 according to the present embodiment will be described with reference to FIGS.

As shown in FIG. 2, an entrance guide plate 43 is provided at the entrance of the copy discharged from the copying machine, and subsequently, upper and lower transport belts 44 and 42 for transporting the copy upward, and a switching claw 46. , Switching guide plates 45 and 47 are provided. Switching claw 4
The upper path by 6 is provided with a pair of paper discharge rollers 48, 49 and a paper discharge tray 54, and the lower path by the switching claw 46 is a plurality of sheets provided in parallel with the up and down direction (example in the figure). Then 20
Of paper 55 along the copy vertical feed path along the copy insertion side of the bin 55.

A deflection claw 64, a conveying roller 62, and a roller pair of a discharge roller 63 are provided at a corresponding position of each bin in the vertical feed path, and a plurality of rollers provided at appropriate intervals of the conveying roller 62 are copied. The driven roller 65 is in pressure contact with the vertical feed path. The transport belts 44 and 42, the discharge rollers 48 and 49, the transport roller 62, and the discharge roller 63 are driven by a drive motor 41.

Two pulleys 53 are provided on the upper and lower sides of the bin group, respectively.
A shaft provided with 69 is supported by the machine frame, and a lower shaft is connected to a post-processing unit moving motor 68. A post-processing unit moving belt 66 is stretched over two pairs of upper and lower pulleys, and the chuck unit 60 and the post-processing unit
61 are attached via a guide unit 51. To guide the guide unit 51, a guide rail 67 is provided on the side of the bin group in the vertical direction over almost the entire height of the sorter.

The copy discharged from the copying machine is inserted from the entrance guide plate 43, is sandwiched by the pair of transport belts 42 and 44, and is transported upward.

Now, assuming that the mode is a normal paper discharge mode (a mode in which the paper is discharged to the paper discharge tray 54), the switching claw 46 is lowered, and copying is performed along a switching guide plate: upper 47 and a paper discharge roller pair 48, 49.
Is discharged to the paper discharge tray 54.

Further, if it is assumed that the mode is a sort mode (a mode in which pages are collated in order) and a stack mode (a mode in which pages are sorted), the switching claw 46 is raised and the copy switching guide plate: Be transported. The copy transported by the transport roller 62 and the driven roller 65 is discharged to the bin 55 where the deflecting claw 64 operates. The deflecting pawl 64 performs a movement according to the mode (sort or stack).

In the sort mode, the deflecting pawl 64 of the first bin operates to discharge to the first bin 55, and the second copy of the first page is operated by the deflecting pawl of the second bin to operate the second bin 55. To be discharged.
The first page of the second page is in the first bin 55, and the second page is in the second bin 55.
Each is discharged to the bin 55. In this way, in the sort mode, the bins are discharged to one bin in the order of pages, such as 1, 2, 3,....

In the stack mode, the deflecting pawl 64 operates so that all copies of the first page are discharged to the first bin and the copies of the second page are discharged to the second bin. In this way, in the stack mode, the same page copy is ejected to one bin and sorted for each page.

Also, the switching claws can be used during sort mode or stack mode.
In the case where a copy jam occurs near 64, there is a function of discharging the copy in front of the switching claw 46 from the sorter in the copy after the jam copy. In this case, the switching claw 46 is switched at the time of a paper jam, and the copy that comes later is discharged to the paper discharge tray 54 without being jammed. The copy discharged to the output tray 54 is removed from the manual feed table 52 after the jam is removed.
Can be put into a predetermined bin by the manual feed roller 50.

In addition to the jam, when a copy is inserted from the manual feed table 52, the copy can be discharged to each bin according to the mode and sorted. Regarding the post-processing function that performs post-processing for the copy sorted in this way,
This will be described below.

The post-processing unit 61 means a stapler, a puncher, or the like. In order to move the post-processing unit to a position corresponding to each bin, the post-processing unit motor 68 is rotated, and the post-processing unit moving belt 66 is moved up and down via the pulleys: lower 69 and upper 53, and the guide is accordingly moved. rail
51 is moved up and down. Guide unit 51
Has a car that moves along a guide rail 67.

Chuck unit 60 is a post-processing unit that
It is a device that carries it to the position 61 and returns it to the original position after the post-processing.

In FIG. 2, the home sensor 56
Is turned on, and post-processing can be performed on the copy of the first bin. When the post-processing is executed from this state, the post-processing unit 61 is lowered by turning on the post-processing unit moving motor 68 after the execution, and the bin position sensor 58 is turned on by the bin position detecting piece 59 of the second bin, so that the post-processing unit The moving motor 68 is turned off, and the post-processing unit 61 is stopped. Then, post-processing of the second bin is performed. Then, when the execution of the post-processing for the copy of the predetermined bin is completed, the post-processing unit 61 is moved to the home position.
In this way, post-processing of a plurality of copy bundles can be executed.

FIG. 3 is a view seen from the opposite side of FIG. In FIG. 3, description will be given of those which could not be expressed in FIG.

The sorter of this embodiment is a sorter of 20 bins, each of which is divided into two blocks of 10 bins, and the upper block has bin sensors 76, 79 and a paper ejection sensor 77, 78.
The lower block has sensors 81 and 84 and paper ejection sensors 80 and 83. The paper ejection tray 54 also has paper ejection sensors 98 and 99. These sensors are transmissive optical detection sensors consisting of LEDs and phototransistors. The paper ejection sensors 77, 78, 80, 83,
The bin sensors 76, 79, 81, and 84 determine whether there is a copy in the bin. With such a bin sensor, it is possible to use the lower block if a copy is on the upper block.

In order to perform post-processing of the copy, the plurality of copies must be aligned. Therefore, the sorter of the present invention is provided with a jogger described below.

The jogger drive belt 86 is rotated by the jogger moving motor 82 via the pulley 85, and the drive shaft 96 is rotated. This allows the jogger moving belt through the pulleys 74,87: top 7
3: The lower 88 moves, and the shaft fixing unit 72 and the shaft drive 95 fixed thereto move. The size detection sensor 93 detects one of the predetermined size detection pieces 92, and the jogger drive motor 82 stops. Then, when the copy is discharged to the bin, the discharge sensor 77, 78 or 80, 83 detects the copy, and
The aligning shaft drive unit 95 operates, and the aligning plate 70 moves the aligning shaft 71.
Move and make copies. Then, after the end of the post-processing, the jogger moving motor rotates in the reverse direction, and stops at the position where the home sensor 91 is turned on by the home detecting piece 94. This position is the position for the maximum size. In this way,
Each time a copy is ejected, it is aligned to prepare for a post-processing operation.

 FIG. 4 is a view as seen from above in FIG.

The bin 55 has a notch so that the alignment shaft 71 can be moved to a position where the minimum size copy alignment is possible. Further, the alignment plate 70 rotates as indicated by an arrow, and aligns the copies. At this time, there is an end face pressing plate 97 for keeping the other end of the copy at a fixed position. The end face holding plate 97 moves in response to the movement of the chuck unit 60. The bin sensor 124 shows a case where the bin sensors 76, 79, 81, 84 provided for every 10 bins in FIG. 3 are provided at the same position for each bin, and are attached to the stay 123.

 FIG. 5 is a view from the right side of FIG.

With the jogger moving belt 88, it moves like an arrow,
It can be stopped at the size detection piece 92 in accordance with each copy size. When moving to the right, the home sensor 91 that matches the maximum copy size is
Up to the position activated by 92.

 FIG. 6 is a detailed view of the chuck unit 60.

The chuck unit 60 grasps the bundle of copies on the bin 55 and sends it to the post-processing unit (not shown in FIG. 6) 61.
At the end of the post-processing, and returns to the same state as when it was discharged onto the bin 55 again.

First, when the motor 107 rotates in the H direction, the worm gear 100 rotates and the gear 101 moves in the I direction. Then, the spiral shaft 106 rotates, and the moving plate 113, the chuck: upper 109, the lower 110, and the multiple plate 112 are moved in the B direction via the moving rod (there is a hole in the spiral) 105. Moving. When moving in the direction B, the home sensor 102 is turned on by the position detecting piece 103, and the motor 107 is stopped.

Conversely, when the motor 107 rotates in the G direction, the gear 101
Move in the J direction, and the moving rod 105, the moving plate 113, the chuck: upper 109, the lower 110 and the push plate 112 move in the A direction. When moving in the direction A, the position detecting piece 103 turns on the front end position sensor 104 and stops the motor 107. And
When the solenoid 114 is turned on, the upper chuck 109 is pulled.
It is lowered in the direction D by 108 to grab a bundle of copies (not shown). At this time, the end face pressing plate 97 is lowered in the F direction by the pressing plate 112 so as not to hinder the movement of the copy bundle.

When the motor 107 rotates in the H direction, the copy bundle is brought in the B direction. When the push plate 112 returns in the direction B, the end face cover plate 97 attempts to return to its original state by the spring 111, but stops at the copy bundle because the copy bundle is already on the top. When the moving plate reaches the home position, the motor 107 is stopped, and then the post-processing unit 61 is operated. After the post-processing is completed, the motor is rotated again in the G direction to return the copy bundle to the A direction. When the position detecting piece 103 turns on the tip position detecting sensor again, the motor 107 stops, the solenoid 114 turns off, and the chuck:
09 is raised, the copy bundle returns to the original position, and the end face holding plate 97 also returns to the original position. Then, the motor 107 rotates in the H direction, pushes the moving plate 113 to the home position, and stops.
Thus, the chuck unit 60 carries out the operation of transporting the copy bundle discharged onto the bin to the post-processing device and returning it to the original position.

FIG. 7 is a schematic diagram of the post-processing unit 61. As an example, a stapler will be illustrated and described.

In this stapler, the motor 116 is turned on by an electric signal.
When N is performed, the staples 119 in the cartridge 117 are pushed and bent. The staples 119 are connected in a strip shape with a thin tape, and are rolled up in the cartridge 117. When the end of the staple passes through a near-end sensor (reflective sensor for optically reading) 118, a near-end signal is output.

FIG. 8 is a detailed view of the alignment shaft drive unit 95 shown in FIG. 3 and FIG.

When the motor 120 makes one rotation, the aligning plate 70 rotates fan-shaped in the direction of arrow AB via the cam 121, the lever 122, and the aligning shaft 71. In this way, each time a copy is discharged to a bin, the motor 120 makes one revolution to align the copies.

FIG. 10 is a block diagram of a control system in the present invention.

This control is based on CPU300, ROM301, RAM302, IN port
This is a microcomputer system including a 303, an OUT port 304, and an I / O port 305. I wrote the program
The ROM 301 allows the IN port 303 to be used while using the RAM 302 as needed.
, And outputs a controlled signal to the OUT port 304 to control the copier and the sorter.
The control of the sorter also includes a post-processing operation (such as a stapling operation) after sorting the copies. The control unit of ADF3 is connected to the I / O port 305,
Exchange signals with CPU300. The ADF 3 feeds the document onto the contact glass according to a signal from the CPU, and discharges the document when the exposure is completed. In the case of a double-sided original mode (double-sided single-sided mode, double-sided double-sided mode), after the exposure of the first side is completed, the document is reversed and fed again onto the contact glass,
After the exposure of the surface is completed, the sheet is inverted and discharged. In addition, a backup battery 306 is connected to the RAM 302 and is a nonvolatile memory.

FIG. 11 is an enlarged view when the bin sensors 76, 79, 81, 84 are provided in each bin. The bin sensor is a transmission type optical detection sensor consisting of LED and phototransistor.
It is composed of 4 and a light receiving section 125, and is supported by a stay 123 to detect the presence or absence of a copy paper bundle in each bin.

 FIG. 9 shows a part of the operation unit of the above copying machine.

Reference numeral 201 denotes a start key for instructing a copy start, 2
02 is a numeric keypad for entering the number of copies, etc., 203
Is a clear / stop key for instructing clearing of a set number and a copy stop, 204 is a set number display for displaying the number of sets for displaying the number of copy sets, 205 is a number display for the number of copies for displaying the number of copies, and 206 is a copy number display for displaying the number of copies. A document number display 207 displays the number of documents, a paper size display 207 displays the copy paper size set in each tray, 20
8 is a paper remaining amount display that shows the remaining amount of copy paper set in each tray, and 209 is a mode (automatic paper selection mode) that automatically selects the optimal copy paper based on document size information etc. Automatic paper selection mode display to indicate that paper is being printed, 210 is a paper key for selecting copy paper, 211 is a paper size selection display that shows which copy paper size is selected, and 212 is copy Display indicating that the copier is ready, wait display, 213 indicates that the copier is ready, can be copied Display, 214 indicates the sort mode and stapling by releasing the sort mode A sort mode key to be executed, 215 is a sort mode indicator for displaying that the sort mode is set, and 216 is an instruction for the stack mode and is used for canceling the stack mode. 217 is a stack mode display that indicates that the stack mode is set, 218 is a DF key that indicates the automatic document feeder (ADF) mode, and 219 is an automatic document. A DF mode indicator that indicates that the feeder (ADF) mode is set, 220 is a staple key to indicate the staple binding mode, 221
Indicates that the staple binding mode is set. Staple mode indicator, 222 is a single-sided / double-sided mode key for instructing to make a double-sided copy of two single-sided originals, and 223 is a single-sided / double-sided mode. Single-sided / double-sided mode display that indicates that is set, 224 is a double-sided / single-sided mode key for instructing to perform two-sided single-sided copying from one double-sided original, and 225 is a double-sided / single-sided mode. 226 indicates that two-sided duplex mode is set. 226 indicates that two-sided duplex mode key is set. 2-sided mode indicator, 228
Warns that there is copy paper left on the saw turbine,
Saw turbine paper forgetting indicator, 229 warns of jams in the sorter, sorter jam indicator, 330 warns of jams in the copier body, etc., jam indicator, 231 does not have copy paper selected , 232 indicates that there is no staple (needle), staple supply indicator, 233 indicates that stapling cannot be performed, staple disabled indicator, 234 indicates the staple limit. It is a staple limit indicator.

<Description of Operation of the Invention> Next, an operation example of the present invention will be described with reference to the flowchart of FIG.

FIG. 12 shows a flow of a sort mode key process which is a subroutine for performing a stapling operation by releasing the sort mode key.

First, it is determined whether or not the sort mode key 214 has been pressed (12-1), and if it is on, it is checked whether or not this processing has been performed once by the sort mode set flag (12-2). In case of, the sort mode set flag is set to 1 (12-3), and it is checked whether or not the sort mode is already set at this time (12-4).
Depressing 214 determines that the sort mode is released and turns on the sort mode (12-5).

This will start the stapling process,
In this embodiment, a bin sensor is provided and it is determined whether or not one of them is turned on (12-6). When a bin sensor is provided in each bin, 124/125
76/79 when any of the bin sensors is on, or when bin sensors are provided every 10 bins
Alternatively, when one of the 81/84 bin sensors is on, the stapling operation processing is performed (12-7). When neither of the bin sensors is on, the stapling operation is not performed. This means that the sheet bundle has already been taken out by the operator, and this is to prevent a so-called blank hit, in which a stapling operation is performed without the sheet bundle.

When the sort mode key 214 is not turned on,
In order to pass this subroutine only once, the sort mode set flag is set to 0 (12-8).

When the sort mode key 214 is turned on (12-
1) It is judged whether or not it is the sort mode (12-4). If it is not the sort mode, the first sort mode key for sorting is regarded as being pressed and the sort mode is executed (12-
9) After the sorting process, the subroutine is executed after the machine stops.

As described above, if the sort mode key 214 is pressed twice to perform the sort mode, to release the staple mode after finishing the sort mode, and to perform the staple process, The installation of another key for stapling can be omitted. As a result, the copying machine operating section shown in FIG. 9 is not provided with a staple key and its display, and the operating section is simplified accordingly. However, it is possible to provide a display indicating that stapling is in progress, if necessary.

FIG. 13 is a flowchart showing a subroutine of stack mode key processing in the stack mode.

Since the sort mode in FIG. 12 is changed to the stack mode, exactly the same operation as in the case of FIG. 12 is performed, and the description thereof will be omitted.

Effect As described above, according to the present invention, the post-processing is performed by releasing the sort mode key or the stack mode key after executing the sort mode or the stack mode, so that it is necessary to provide a dedicated key for the operation unit. This eliminates the need for switches and the like, simplifies the operation unit, reduces key operations, and contributes to cost reduction of the sheet handling apparatus.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing the overall configuration of a copying system to which the present invention is applied, FIG. 2 is a side sectional view showing the configuration of the sorter, and FIG. 3 is a view of the sorter viewed from the opposite side of FIG. FIG. 4 is a side view of the sorter viewed from the right side in FIG. 2, FIG. 6 is a perspective view showing the structure of the chuck unit, FIG. FIG. 8 is a perspective view showing the structure of the post-processing unit, FIG. 8 is a perspective view showing the structure of the alignment axis drive unit, FIG. 9 is a plan view showing a part of the operation panel of the copying machine, and FIG. 10 is a control system. FIG. 11 is a sectional view showing a state in which the bin sensor is attached, FIG. 12 is a flowchart of sort mode key processing, and FIG. 13 is a flowchart of stack mode key processing. 20: Sorter 55: Bin 61: Post-processing unit 214: Sort mode key 216: Stack mode key

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shin Umeda 1-3-6 Nakamagome, Ota-ku, Tokyo Within Ricoh Co., Ltd. (72) Inventor Hoshi, etc. 1-3-6 Nakamagome, Ota-ku, Tokyo In stock company Ricoh (72) Inventor Toshiya Tagawa 1-3-6 Nakamagome, Ota-ku, Tokyo In stock company Ricoh (72) Incubator Kimi Ishii 1-3-6 Nakamagome, Tokyo Inside the formula company Ricoh (72) Inventor Masao Moriya 1-3-6 Nakamagome, Ota-ku, Tokyo Inside the formula company Ricoh (56) Reference JP-A-63-41367 (JP, A)

Claims (1)

(57) [Claims] 1. A sorting mode selecting means for selecting a sorting mode for receiving sheets and sorting them into a plurality of bins, and a post-processing for selecting a post-processing mode for performing post-processing on sheets sorted on the plurality of bins. In a sheet post-processing apparatus having: a sorting mode selecting means and a post-processing mode selecting means, comprising the same selecting means; first, a sorting mode is selected by the selecting means to sort sheets into the plurality of bins. A sheet post-processing apparatus, wherein after the sorting is completed, a post-processing mode is selected by the selection means and post-processing is performed on the sheets sorted on the plurality of bins.