JP4019603B2 - Punch processing apparatus and image forming apparatus provided with the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a punch processing device that performs punching processing on a sheet and an image forming apparatus including the punch processing device. In particular, a plurality of different types of punching processing such as 2-hole punching processing and 3-hole punching processing are performed. The present invention relates to a punch processing apparatus and an image forming apparatus including the punch processing apparatus.
[0002]
[Prior art]
Conventionally, as a paper punching device for punching this type of paper, those disclosed in JP-A-9-136762, JP-A-10-7307, JP-A-11-263528, etc. is there. These paper punching devices disclosed in JP-A-9-136762, JP-A-10-7307, JP-A-11-263528, etc. are similar to 2-hole punching and 3-hole punching. 2. Description of the Related Art There is known a paper punching device that has a punching means that can perform two or more types of punching processing and performs punching processing on paper such as copy paper by selectively using the punching means.
[0003]
Further, as a paper punching device for punching paper such as the above-mentioned copy paper, two or more types of punch units are replaceably mounted and mounted as disclosed in JP-A-9-151025. There has already been proposed a sheet processing apparatus capable of performing a desired punching process using the punch unit.
[0004]
Further, as a technique related to full detection of punch waste generated when punching processing is performed by the paper punching device, as disclosed in Japanese Patent Laid-Open No. 7-137926, punch waste when punch holes are made. It is generally known to have a waste receiver for receiving the waste and a counting means for counting the number of punches, and to detect the fullness of the waste receiver based on the count value of the punch number counting means.
[0005]
[Problems to be solved by the invention]
However, the prior art has the following problems. That is, in the case of the image forming system having the punch function disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 7-137926, the image forming system has a counting means for counting the number of punches, and the fullness detection of the waste receptacle is measured by the punch number counting means. This is configured to be performed numerically. The technology disclosed in JP-A-7-137926 is disclosed in JP-A-9-136762, JP-A-10-7307, JP-A-11-263528, and JP-A-9-15125. 2 and 3 when applied to a paper punching device having punching means capable of two or more types of punching processing, or capable of performing two or more types of punching processing by replacing the punch unit. If the device is capable of drilling holes, the number of punching operations is counted as the punching process in which all punching processes fill up the punch scraps the fastest, as in the case of three hole drilling processes. When the count value of the number of punch processing operations reaches a predetermined value, it is set so as to detect the fullness of punch dust and is configured to display the fullness of punch dust.
[0006]
However, the number of punching operations to reach full punch scraps naturally depends on the number of punch holes for punch processing, the diameter of the punch holes cut, the thickness of the paper, etc. If you set the number of punching operations for punch scraps to be full based on the maximum number of holes that can be filled and punch processing for cardboard, etc., the punch waste collection box still has room Regardless, there was a problem of detecting full punch scraps.
[0007]
Further, the image forming system having a punch function disclosed in Japanese Patent Laid-Open No. 7-137926 is configured so that the fullness of punch dust is displayed when full detection is performed based on the number of punch operations. At that time, the operation of taking out the punch waste collection box and discarding the punch waste collected in the recovery box is performed by opening the cover of the punching processing device. The lock switch is activated and all the operating parts are stopped. Therefore, even in the middle of a series of punching processes, the punching process must be temporarily interrupted, the punching processing device cover must be opened, and punch scraps must be discarded. was there. Further, when a staple process is performed after punching a sheet, a bundle of sheets punched halfway is left on the intermediate tray without being stapled. Yes. Therefore, when the punch waste collection box and the intermediate tray are arranged close to each other, when removing the punch waste collection box, the paper bundle that is mistakenly touched and placed on the folded intermediate tray There was a problem that it might collapse.
[0008]
Further, as disclosed in JP-A-9-151025, in an apparatus in which a plurality of types of punch units can be attached to and detached from one post-processing apparatus, the punch unit is usually built in the post-processing apparatus. Since it is covered with a cover, it is impossible to know how many punch units are attached to the post-processing apparatus unless a punching operation is executed. Therefore, in an apparatus in which a plurality of types of punch units can be attached to and detached from one post-processing apparatus, there is a possibility that a punch process different from a desired punch process may be erroneously executed. It was. In particular, when a number of post-processing devices are arranged close to each other and each post-processing device is equipped with a different punch unit, a punch processing different from the desired punch processing is erroneously executed. The fear becomes very noticeable. The above-mentioned problem also occurs in a punch unit having a different hole diameter for punch processing in addition to an apparatus capable of performing a plurality of punch processes having different numbers of holes for punch processing.
[0009]
Therefore, the present invention has been made to solve the above-mentioned problems of the prior art,PurposeIn a punching and punching apparatus capable of performing a plurality of punching processes of different types, the punch scrap collecting container is detected by detecting the timing when the punch scraps are full according to the type of punch processing actually performed. It is an object of the present invention to provide a punch processing apparatus and an image forming apparatus provided with the punch processing apparatus that can make full use and display unnecessarily full detection of punch dust and prevent operability from deteriorating.
[0012]
[Means for Solving the Problems]
  That is, the invention described in claim 1Plural types with different numbers or diameters of punch holesIn a punch processing apparatus equipped with a punch scrap collection box that can perform punch processing of the above, and recovers punch scrap generated by the punch processing,
  Recognizing means for recognizing the type of punch processing executed by the punch processing apparatusWhen,
Based on the type of punching process recognized by the recognition means, the punching process is performed each time the punching process is executed while changing the count value for counting punch scraps generated by the punching process being executed once. And a full detection unit that counts the scrap count value cumulatively and determines that the punch scrap collection box is full when the cumulative count value of the punch scrap count reaches a predetermined value.This is a punch processing apparatus.
[0013]
According to a second aspect of the present invention, the punching device includes a first punching mechanism including a plurality of first punching blades arranged at a first interval in a direction orthogonal to the paper transport direction. And at least two drilling mechanisms of a second drilling mechanism comprising a plurality of second drilling blades arranged at a second interval, and drive means for driving the two or more drilling mechanisms. The punch processing apparatus according to claim 1.
[0014]
Furthermore, the invention described in claim 3 is characterized in that the punching device includes a first punching mechanism including a plurality of first punching blades arranged at a first interval in a direction orthogonal to the paper transport direction. The at least two perforation mechanisms of the second perforation mechanism comprising a plurality of second perforation blades arranged at a second interval can be selectively mounted. This is a punch processing apparatus.
[0017]
Also,Claim 4The invention described in 1 determines when the punch scrap collection box is fullPredetermined valueIs set to be smaller than the capacity of the punch scrap collection box, and when the punch scrap recovery box is full, after the series of punch processing operations is completed, the punch processing operation is stopped and a warning is displayed. Claims1 to 3It is a punch processing apparatus of description.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0027]
Embodiment 1
FIG. 1 shows a digital copying machine as an image forming apparatus to which a punching apparatus according to Embodiment 1 of the present invention is applied.
[0028]
In FIG. 1, reference numeral 1 denotes a main body of a digital copying machine. A scanner unit 3 for reading an image of a document 2 is disposed at an upper end portion of the digital copying machine main body 1. In the upper part of the platen, a function as a document pressing member that presses the document 2 placed on a first platen glass 19 to be described later, and an automatic that conveys the document 2 on the second platen glass 10 at a constant speed. An automatic document feeder 4 having a document feeding function is disposed to be openable and closable with respect to the copying machine main body 1.
[0029]
As shown in FIG. 2, the automatic document feeder 4 includes a document set tray 5 for setting a plurality of documents 2 to be copied with the copy side facing up, and is set on the document set tray 5. The plurality of originals 2 are picked up in order from the uppermost original by the nudger roll 5 a and sent to the feed roll 6 and the retard roll 7. A document feed sensor 28 for detecting the feed state of the document 2 is disposed at the rear ends of the feed roll 6 and the retard roll 7. The document 2 is separated one by one by the feed roll 6 and the retard roll 7, and is taken by a plurality of takeaway rolls 9 provided in the middle along the conveyance path 8 formed in a substantially arc shape. It is conveyed to a reading position on the second platen glass 10. While the document 2 transported to the reading position on the second platen glass 10 is transported at a constant speed by the document transport roll 11 disposed on the second platen glass 10, FIG. Is read by the image reading element 13 made of a CCD or the like through the scanning optical system 12 of the scanner unit 3 stopped at the position shown in FIG. The scanning optical system 12 folds the illumination lamp 14 that illuminates the document 2, the full-rate mirror 15 that reflects the reflected light image of the document illuminated by the illumination lamp 14, and the light image from the full-rate mirror 15. Two reflecting half-rate mirrors 16, 17, and an imaging lens 18 that forms an image of the original 2 reflected by the half-rate mirrors 16, 17 in a reduced state on the image reading element 13. It is configured.
[0030]
When the scanner unit 3 reads an image of the document 2 moving on the second platen glass 10 at a constant speed, as shown in FIG. 2, the full-rate mirror 15 is located immediately below the second platen glass 10. The image of the document 2 is read with the scanning optical system 12 stopped so as to come to the reading position. When the scanner unit 3 reads an image of the document 2 placed on the first platen glass 19, the illumination lamp 14, the full rate mirror 15, and the half rate mirrors 16 and 17 are connected to the document 2. The image on the original 2 is read by scanning along the lower surface at a speed ratio of 1: 1/2.
[0031]
Thereafter, the transport path of the document 2 read at the reading position on the second platen glass 10 is switched by the transport path switching member 21 via the document transport roll 11 and the tri-roll 20 in which the three rolls are pressed against each other. As a result, the paper is discharged onto a document discharge tray 23 provided below the document set tray 5 by the discharge roll 22.
[0032]
Further, when the automatic document feeder 4 performs duplex copying of the document 2, the document 2 on which the image on one side is read is not directly discharged onto the document discharge tray 23 by the discharge roll 22, but the conveyance path is switched. By switching the conveyance path by the member 21, the document 2 on which the image on one side is read is temporarily stored in the document temporary storage unit 25 below the document discharge tray 23 by the transport roll 24, and the rear end of the document 2 is transferred to the transport roll 24. While being held, the conveyance roll 24 is temporarily stopped. Next, by reversing the transport roll 24, the document 2 is transported again to the transport path 8 via the transport path switching member 21 with the front and back being reversed, and the back side of the document 2 is placed on the second platen glass 10. Are read by the image reading element 13 via the scanning optical system 12. Thereafter, the document 2 from which the images on both the front and back surfaces are read is switched by the transport path switching member 21 via the document transport roll 11 and the tri-roll 20, so that the transport roll 24 lowers the document set tray 23. The document is temporarily stored in the original document storage unit 25. Then, the document 2 stored in the document temporary storage unit 25 has a U-turn path in a state in which the document 2 is reversed upside down by reversing the conveyance roll 24 while the rear end is held between the conveyance rolls 24. 26, the document 2 is discharged on the discharge tray 23 with the surface of the document 2 facing down.
[0033]
A first platen glass 19 having a large area for reading an image of the original 2 by placing the original 2 in a fixed state on the upper end of the digital copying machine main body 1 as described above, A small second platen glass 10 for reading an image of the document 2 while automatically conveying the document 2 at a constant speed is disposed. Further, as described above, the automatic document feeder 4 having a function as a document pressing member is disposed above the digital copying machine main body 1 so as to be openable and closable. A document pressing member 27 made of an elastic member that presses the document 2 is provided at a position corresponding to the upper portion of the first platen glass 19.
[0034]
In the digital copying machine, as shown in FIG. 1, the image information of the document 2 is read by the scanner unit 3 and the automatic document feeder 4 configured as described above. The image information of the document 2 read by the scanner unit 3 is stored in a temporary storage device (not shown), subjected to predetermined image processing as necessary, and then according to the image information subjected to the image processing. Image exposure is performed on the photosensitive drum 30 by a ROS 29 (Raster OutputScanner) to form an electrostatic latent image. The surface of the photosensitive drum 30 is uniformly charged to a predetermined potential by a scorotron or a charging roll prior to image exposure. The electrostatic latent image formed on the photosensitive drum 30 is developed by the developing device 31 to become a toner image, and then the toner image is transferred onto the copy paper 33 by the transfer charger 32. The copy paper 33 is fed with a predetermined size of paper from a plurality of paper trays 34, 35, 36, 37 accommodated in the lower part of the digital copying machine main body 1, and feed sensors 38, 39, 40. , 41, and then once conveyed to a registration roll 43 in front of the photosensitive drum 30 by a plurality of conveying rolls 42, and in synchronization with the toner image formed on the photosensitive drum 30 by the registration roll 43. The photosensitive drum 30 is conveyed to the surface.
[0035]
The copy sheet 33 onto which the toner image has been transferred from the photosensitive drum 30 is separated from the photosensitive drum 30 by the separation charger 44, and then conveyed to the fixing device 46 by the conveying belt 45, and is heated by the fixing device 46. Then, the toner image is fixed on the copy paper 33 by the pressure and discharged, and is discharged onto the stack tray 47 of the post-processing device 51 disposed outside the apparatus, thus completing the image copying process.
[0036]
The surface of the photosensitive drum 30 after the toner image transfer process is completed by removing residual toner, paper dust, and the like by a cleaning device 48 to prepare for the next copying process.
[0037]
When performing double-sided copying with the above-mentioned digital copying machine, the copy paper 33 with the image copied on one side is not discharged onto the stack tray 47 as it is, but the conveyance path is switched and the paper is once conveyed to the paper inversion path 49. Then, after the image is copied on the back surface of the copy paper 33 by being conveyed again to the image forming section below the photosensitive drum 30 through the conveyance path 50 with the front and back surfaces of the copy paper 33 being reversed, The copying paper 33 is configured to be discharged onto the stack tray 47.
[0038]
By the way, as shown in FIG. 1, the digital copying machine as the image forming apparatus configured as described above has, on one side thereof, punch processing, collation processing, and the like for paper discharged from the digital copying machine. Alternatively, a post-processing device 51 that performs post-processing such as stapling is provided.
[0039]
As shown in FIG. 1, an image is formed on one side or both sides of the post-processing device 51 facing the digital copying machine, and the paper 33 discharged from the digital copying machine is introduced. A mouth 52 is provided. Inside the post-processing apparatus 51, a transport roll 53 for transporting the paper 33 introduced from the introduction port 52 is disposed, and a switching gate for switching the transport direction of the paper is provided downstream of the transport roll 53. 54 is provided. When the sheet 33 on which an image is formed by the digital copying machine is discharged onto the stack tray 47 as it is, the transfer direction of the sheet 33 is switched to the upper transfer roll 55 side by the switching gate 54, and the image is read by the digital copying machine. Is formed on the stack tray 47 as it is. On the other hand, when post-processing such as punching, collating or stapling is performed on the paper 33 on which an image has been formed by the digital copying machine, the lower transfer rolls 57 and 58 side are switched by the switching gate 54. The transport direction of the paper 33 is switched to the punching device 59 and the collating processing and / or stapling processing by the stapling device 60 is performed as necessary. It is discharged in the state of being sorted above.
[0040]
3 to 8 show a punch processing apparatus disposed inside the post-processing apparatus. In this punch processing apparatus, two types of punch processing, that is, two-hole punch processing and three-hole punch processing, can be selectively executed.
[0041]
As shown in FIG. 1, the punch processing device 59 is disposed inside the post-processing device 51 on the upstream side of the conveyance path 63 that performs post-processing on the paper 33. 3 and 4, the punch processing device 59 includes a chute frame 66 composed of an upper chute 64 and a lower chute 65, and between the upper chute 64 and the lower chute 65, A slit-shaped passage 67 through which the sheet 33 passes is formed.
[0042]
The punch processing device 59 is integrally provided with a first punching mechanism 68 for making two holes in the paper 33 and a second punching mechanism 69 for making three holes. The first drilling mechanism 68 includes a two-hole drilling blade 70, a two-hole cam 71 for driving the two-hole drilling blade 70, and a two-hole cam at the upper end of the two-hole drilling blade 70. And a compression spring 72 to be brought into pressure contact with 71. The two-hole punching blade 70 is disposed at a predetermined distance from the center line of the paper 33 in a direction orthogonal to the conveyance direction of the paper 33. The second drilling mechanism 69 also includes a three-hole drilling blade 73, a three-hole cam 74 that drives the three-hole drilling blade 73, and the three-hole drilling blade 73 in the three-hole cam 74 direction. And a compression spring 75 for urging the spring. The three-hole punching blade 73 is larger than the two-hole punching blade 70 at a position corresponding to the center line of the paper 33 and a position symmetric with respect to the center line in a direction orthogonal to the conveyance direction of the paper 33. A total of three are arranged at positions separated from each other.
[0043]
As shown in FIG. 6, the two-hole drilling blade 70 and the three-hole drilling blade 73 are vertically movable through a chute frame 66 including an upper chute 64 and a lower chute 65. The upper chute 64 and the lower chute 65 are formed with through holes 76 and 77 corresponding to the diameters of the 2-hole drilling blade 70 and the 3-hole drilling blade 73, and the lower through-hole 77 is perforated. A receiving blade for the blades 70 and 73 is formed. The upper chute 64 is provided with a drilling blade guide member 78 for guiding the receiving blade. The sheet 33 passes through the passage 67 between the upper chute 64 and the lower chute 65 in the direction of arrow A, and when the sheet 33 is in a stationary state, the punching blades 70 and 73 are projected through the sheet conveying surface. As a result, perforation processing is performed.
[0044]
As shown in FIG. 7, punch scraps of the paper 33 punched by the 2-hole punch blade 70 and the 3-hole punch blade 73 are formed by the 2-hole punch blade 70 and the 3-hole punch blade 73 as shown in FIG. In the state where it penetrates the through-hole 77 of the lower chute 65, it is collected in the punch scrap collection box 79.
[0045]
The two-hole cam 71 and the three-hole cam 74 are attached to a common cam shaft 80 as shown in FIGS. The two-hole cam 71 and the three-hole cam 74 are each formed in a substantially elliptical shape. As shown in FIG. 6, the shape of the two-hole cam 71 and the shape of the three-hole cam 74 are the same, but the attachment position with respect to the cam shaft 80 is different by 180 degrees. That is, the phase with respect to the rotation of the camshaft 80 differs by 180 degrees.
[0046]
As shown in FIGS. 3 and 4, the cam shaft 80 is rotatably supported by a bearing member 81 provided on the upper chute 65. A pulley 82 is attached to one end of the cam shaft 80, and the rotation of the drive motor 83 is transmitted to the pulley 82 via a timing belt 84. In this embodiment, a DC motor or a pulse motor capable of normal rotation and reverse rotation is used as the drive motor 83. Further, as shown in FIG. 8, a light shielding plate 85 protruding in the radial direction from the center of the cam shaft 80 is attached to one end of the cam shaft 80. A cam home sensor 86 and a cam position sensor 87 are disposed at symmetrical positions with respect to the cam shaft 80, and when the light shielding plate 85 faces the cam home sensor 86 or the cam position sensor 87, the cam home sensor 86 or the cam position sensor 87. Is turned on.
[0047]
In the punch processing device 59, by rotating the cam shaft 80 in directions different by 180 degrees, the 2-hole punch processing and the 3-hole punch processing can be selectively performed. By rotating 360 degrees, punching of five holes can be executed.
[0048]
Further, as shown in FIG. 5, a paper sensor 88 for detecting the entry of the paper 33 is provided on the paper inlet side of the chute frame 64.
[0049]
FIG. 9 is a principle block diagram of an electric circuit for controlling the operation of the punch processing device 59. In this embodiment, an electric circuit for controlling the operation of the punch processing device 59 is provided inside a digital copying machine as an image forming apparatus. Accordingly, the digital copying machine and the post-processing apparatus on which the punch processing apparatus 59 is mounted are electrically connected to each other via a control cable (not shown). However, the present invention is not limited to this, and an electric circuit for controlling the operation of the punch processing device 59 may be provided in the post-processing device 51 to which the punch processing device 59 is mounted. .
[0050]
The control panel 90 is used for inputting various instructions including setting of the operation mode of the punch processing device 59 to the digital copying machine, and displaying the input information and the operating state of the digital copying machine. From the control panel 90, whether to operate the punch processing device 59 in the post-processing device 51, that is, whether to set the punch mode, whether to operate the punch processing device 59 in the two-hole mode, or three holes An instruction for operating in the mode, an instruction for selecting the non-sort mode, sort mode, or stack mode as the discharge mode of the sheet 33 are input.
[0051]
A signal from the control panel 90 is supplied to the microprocessor 91 together with input signals from the cam home sensor 86, the cam position sensor 87, the paper sensor 88, and the like. Information on whether or not the punch mode is set, information on whether it is the 2-hole mode or the 3-hole mode, information on the paper discharge mode, and the like are stored in a RAM or the like in the microprocessor 91.
[0052]
The microprocessor 91 controls the start and stop of rotation of the punch motor 83 and the direction of rotation of the punch motor 83 through the punch motor control circuit 92 in response to these input signals, and also transports the paper through the paper transport motor control circuit 93. The motor 94 is controlled. The paper transport motor 94 is for driving the rolls 55, 56, 57, 58, 61 and the like to rotate.
[0053]
In the above configuration, in the digital copying machine to which the punch processing device according to this embodiment is applied, the punch processing actually executed in the punch processing device capable of performing a plurality of different types of punch processing as follows. Depending on the type of punch, it detects when the punch scraps are full, makes full use of the punch scrap collection box, and displays unnecessary punch scrap full detection to prevent operability from deteriorating. It is possible.
[0054]
That is, in the punch processing device 59 according to this embodiment, the punching process designated by the control panel 90 of the digital copying machine is executed on the copy paper 33 on which the image is copied on one side or both sides by the digital copying machine. The
[0055]
First, as shown in FIG. 10, the microprocessor 91 determines whether or not the punching process executed by the punching device 59 has two holes (step 101), and when the punching process to be executed is two holes, Sets the count C to 2 (step 102). If the punch process to be executed is not 2 holes, it is determined whether or not the punch process to be executed is 3 holes (step 103). If the punch process to be executed is 3 holes, The count C is set to 3 (step 104). On the other hand, when the punching process to be executed is not 3 holes, the count C is set to 5 (step 105).
[0056]
Thereafter, the punching device 59 performs punching for a predetermined number of holes (step 106), and the microprocessor 91 calculates the parameter B = B + 1 × C (step 107). Note that the initial value of the parameter B is 0.
[0057]
Next, the microprocessor 91 determines whether or not the parameter B is 6000 or more (step 108). If the parameter B is 6000 or more, the microprocessor 91 notifies the control panel 90 that the punch waste collection box 79 is full. When the parameter B is less than 6000, it is determined whether or not there is a succeeding sheet 33 (step 110). If there is a succeeding sheet, the process returns to step 106. When the predetermined punching process is executed and there is no subsequent sheet 33, the punching process is terminated.
[0058]
At that time, even if the parameter B is 6000 or more, the microprocessor 91 is in the middle of executing a series of copying process and punching process until the series of copying process and punching process is completed. These processes can be executed continuously, and after a series of copying processes and punching processes are completed, the full detection of the punch scrap collection box 79 is displayed on the control panel 90, and the punch scraps in the punch scrap collection box 79 are displayed. It is desirable to configure so as to promote the disposal of the device because it does not deteriorate the operability. For this purpose, the count value that determines when the punch scrap collection box 79 is full is set to be smaller than the capacity of the punch scrap collection box 79, and even if the count value reaches a predetermined value, a series of copying processes and punches are performed. It is desirable to allow processing.
[0059]
When the parameter B is 6000 or more and the full detection of the punch scrap collection box 79 is notified to the control panel 90, the user opens the cover of the post-processing device 51 as shown in FIG. After the punch scrap collection box 79 disposed in the box is taken out and the punch scraps in the punch scrap recovery box 79 are discarded, the punch scrap recovery box 79 is placed again at a predetermined position, and the punching process is continued.
[0060]
At this time, as shown in FIG. 11, the microprocessor 91 determines whether or not the punch waste collection box 79 has been inserted or removed (step 201), and ends the operation if the punch waste collection box 79 has not been inserted or removed. If the punch scrap collection box 79 is inserted or removed, the parameter B is set to 0 (step 202), and it is determined whether or not the punch scrap collection box 79 is detected full (step 203). If the punch scrap collection box 79 is detected to be full, the full detection of the control panel 90 is canceled (step 204). End the operation.
[0061]
Note that the value of 6000, which is the value of the count C and the value of parameter B corresponding to the fullness of the punch scrap collection box 79, is set to a value corresponding to the fullness of the punch scrap collection box 79 by repeating the experiment. The
[0062]
As described above, in the above embodiment, the count C is set according to the type of punch processing executed by the punch processing device 59, and the count C is multiplied by the number of punch processing executed. When the integrated value of parameter B, which is a calculated value obtained by multiplying the count C by the number of punch processes executed, reaches a predetermined number 6000, the punch scrap collection box 79 is detected to be full. Therefore, depending on the type of punch processing that is actually performed, it detects when the punch scraps are full, displays the punch scrap full detection unnecessarily by making full use of the punch scrap recovery box. It is possible to prevent the operability from being lowered.
[0063]
Embodiment 2
FIG. 12 shows a second embodiment of the present invention. The same parts as those in the first embodiment will be described with the same reference numerals. In the second embodiment, the punching device is a paper sheet. A first perforation mechanism comprising a plurality of first perforation blades arranged at a first interval in a direction perpendicular to the conveying direction, and a first comprising a plurality of second perforation blades arranged at a second interval. At least two or more drilling mechanisms with two drilling mechanisms are configured to be selectively mountable.
[0064]
That is, in the second embodiment, the punching device 59 performs a first hole punching mechanism for performing a two hole punching process, a second hole punching mechanism for performing a three hole punching process, and a five hole punching process. The third drilling mechanism for executing the above is configured to be selectively mountable. Note that which perforating mechanism is mounted is recognized by detecting with a dip switch on the base of the post-processing device 51 or a micro switch provided at a position corresponding to each perforating mechanism. Normally, what kind of perforation mechanism is mounted when the apparatus is turned on, which is confirmed by communication with the post-processing apparatus 51, but at the same time, the presence or absence of the perforation mechanism is detected.
[0065]
Then, as shown in FIG. 12, the microprocessor 91 determines whether or not the punching mechanism attached to the punch processing device 59 is the first punching mechanism that executes the punching process for two holes (step 301). When the first drilling mechanism is mounted, the count C1 is set (step 302). If the punching mechanism attached to the punching device 59 is not the first punching mechanism that executes the punching process for two holes, it is a second punching mechanism that executes the punching process for three holes. Is determined (step 303), and if the second punching mechanism is mounted, the count C2 is set (step 304). Further, if the punching mechanism attached to the punching device 59 is not the second punching mechanism that executes the punching process for three holes, it is a third punching mechanism that executes the punching process for five holes. Is determined (step 305), and if the third punching mechanism is mounted, a count C3 is set (step 306). Furthermore, when the punching mechanism attached to the punching device 59 is not the third punching mechanism that executes the punching process for five holes, the count C4 is set (step 307).
[0066]
Thereafter, the punching device 59 performs a punching process for a predetermined number of holes (step 308), and the microprocessor 91 calculates a parameter B = B + 1 × C (step 309). Note that the initial value of the parameter B is 0.
[0067]
Next, the microprocessor 91 determines whether or not the parameter B is equal to or greater than the predetermined value A (step 310). If the parameter B is equal to or greater than the predetermined value A, the full detection of the punch waste collection box 79 is controlled. The panel 90 is notified (step 311), and if the parameter B is less than the predetermined value A, it is determined whether or not there is a subsequent sheet 33 (step 312). Returning to step 208, if a predetermined punching process is executed and there is no subsequent sheet 33, the punching process is terminated.
[0068]
Thus, in the above-described embodiment, the punch processing device includes the first punching mechanism including the plurality of first punching blades arranged at the first interval in the direction orthogonal to the paper transport direction, and the second Even if it is configured to be selectively mountable, at least two drilling mechanisms with a second drilling mechanism consisting of a plurality of second drilling blades arranged at intervals of Depending on the type of punch processing to be performed, the timing at which punch scraps are full is detected, the punch scrap recovery box is used to the maximum, the punch scrap full detection is displayed unnecessarily, and operability is reduced It is possible to prevent this.
[0069]
FIG. 13 shows a modification of the second embodiment. In this modification, the parameter A corresponding to the fullness of the punch scrap collection box 79 is A1, A2, A3, A4 according to the type of the punching mechanism. (Steps 401 to 407), and after punching is executed in each punching mechanism (step 408), the number of times of punching is counted by parameter B = B + 1 (step 409), and the number of times of punching is determined. It is determined whether or not the parameter B shown is equal to or greater than the parameter A set corresponding to each punching mechanism (step 410), and the parameter B indicating the number of punch processes is set corresponding to each punching mechanism. When the parameter A is equal to or greater than the set parameter A, the control panel 90 is notified of the full detection of the punch scrap collection box 79 (step 411). If the parameter B is less than the predetermined value A, it is determined whether or not there is a subsequent sheet 33 (step 412). If there is a subsequent sheet, the process returns to step 408 to execute a predetermined punching process. If there is no subsequent paper 33, the punching process is terminated.
[0070]
Here, when there are three types of drilling mechanisms for 2 holes, 3 holes, and 5 holes, for example, the parameter A = 3000 is set to the drilling mechanism for 3 holes. On the other hand, parameter A = 2000 is set to parameter A = 1200 for a 5-hole drilling mechanism.
[0071]
Since other configurations and operations are the same as those of the first embodiment, description thereof is omitted.
[0072]
Embodiment 3
FIG. 14 shows a third embodiment of the present invention. The same parts as those in the first embodiment will be described with the same reference numerals. In the third embodiment, at least cardboard and plain paper will be described. Punch processing can be executed on two or more types of paper, and the value of the count D is changed according to the paper quality.
[0073]
That is, in the third embodiment, when the paper quality of the paper to be punched is set by the control panel 90 of the digital copying machine, the microprocessor 91 performs the punch processing based on the signal from the control panel 90. It is determined whether or not the sheet 33 on which is executed is a thick sheet (step 501). If the paper 33 to be punched is a thick paper, the count D is set to 4 (step 502). If the paper 33 is not a thick paper, the count D is set to 2 (step 503). .
[0074]
Thereafter, the punching device 59 performs punching for a predetermined number of holes (step 504), and the microprocessor 91 calculates the parameter B = B + 1 × D (step 505). Note that the initial value of the parameter B is 0.
[0075]
Next, the microprocessor 91 determines whether or not the parameter B is 6000 or more (step 506). If the parameter B is 6000 or more, the control panel 90 is notified of the full detection of the punch scrap collection box 79. In step 507, if the parameter B is less than 6000, it is determined whether or not there is a subsequent sheet 33 (step 508). If there is a subsequent sheet, the process returns to step 501. When the predetermined punching process is executed and there is no subsequent sheet 33, the punching process is terminated.
[0076]
As described above, in the third embodiment, the amount of punch dust is accurately determined by changing the count D depending on whether the paper 33 on which the punching process is executed is thick or not, depending on whether the paper 33 is thick paper or plain paper. It is possible to detect well, detect the timing when punch waste reaches full, make full use of the punch waste collection box, display punch waste full detection unnecessarily, and reduce operability. It is possible to prevent.
[0077]
FIGS. 15 to 17 show modifications of the third embodiment. FIG. 15 is a combination of the first embodiment shown in FIG. 10 and the third embodiment, and FIG. 12 is a combination of the second embodiment shown in FIG. 12 and the third embodiment, and FIG. 17 is a combination of the modification of the second embodiment shown in FIG. 13 and the third embodiment. .
[0078]
Since other configurations and operations are the same as those of the first embodiment, description thereof is omitted.
[0079]
Embodiment 4
FIG. 18 shows a fourth embodiment of the present invention. The same parts as those in the first embodiment are described with the same reference numerals. In the fourth embodiment, different types of punching processes are performed. A plurality of executable drilling mechanisms can be selectively mounted, and the mounted drilling mechanisms can be identified and displayed.
[0080]
That is, in the fourth embodiment, a plurality of punch units can be selectively mounted on the post-processing apparatus 51, and depending on the dip switch provided on the base of the post-processing apparatus 51 or each punch unit. The type of punch unit mounted on the post-processing device 51 is recognized by pressing a micro switch corresponding to each position.
[0081]
In the first punch unit, for example, it is possible to execute a punching process of 2 holes at intervals of 80 mm, and in the second punch unit, it is possible to execute a punching process of 3 holes at intervals of 108 mm. In addition, the third punch unit can execute a punching process for a total of 5 holes including 2 holes and 3 holes.
[0082]
The microprocessor 91 normally recognizes what punch unit is attached to the post-processing apparatus 51 through communication and simultaneously recognizes the presence or absence of the punch unit when the digital copying machine is turned on.
[0083]
First, as shown in FIG. 18, the microprocessor 91 determines whether or not the punch unit is attached to the post-processing device 51 (step 601), and ends the operation when the punch unit is not attached. If the punch unit is mounted, it is determined whether or not the punch unit is for two holes (step 602). If the punch unit attached to the post-processing device 51 is for two holes, as shown in FIG. 19, the LED 1 indicating the two holes is turned on (step 603), and the punch unit has two holes. If not, it is determined whether or not the punch unit is for three holes (step 604). Next, when the punch unit attached to the post-processing device 51 is for three holes, the LED 2 indicating the three holes is turned on (step 605), and the punch unit is not for three holes. Turns on the LED 3 indicating the five holes (step 606).
[0084]
20 and 21 are not configured so that the punch unit can be selectively mounted with different numbers of holes, but can be configured to be selectively mounted with punch holes having different diameters. The punch units having diameters of 6 mm, 8 mm, and 10 mm can be selectively mounted, and the punch units of 6 mm, 8 mm, and 10 mm are identified as in the fourth embodiment.
[0085]
Since other configurations and operations are the same as those of the first embodiment, description thereof is omitted.
[0086]
Embodiment 5
FIG. 22 shows a fifth embodiment of the present invention. The same reference numerals are given to the same parts as those of the first embodiment. In the fifth embodiment, the punch processing apparatus is of a type. These punch processes can be selectively executed, and the selection result of the punch process to be executed can be displayed.
[0087]
That is, in the fifth embodiment, the punch processing device 59 attached to the post-processing device 51 can selectively execute a plurality of punch processing, and punch processing to be executed by the control panel 90 of the digital copying machine. The contents of are to be selected.
[0088]
The microprocessor 91 normally recognizes whether a punch unit is mounted on the post-processing device 51 when the digital copying machine is turned on.
[0089]
First, as shown in FIG. 22, the microprocessor 91 determines whether or not the punch unit is attached to the post-processing apparatus (step 701), and ends the operation when the punch unit is not attached. . Next, the display panel capable of detecting the pressing position of the control panel 90 determines whether or not the 2-hole punching process is selected (step 702), and if the 2-hole punching process is selected, As shown in FIG. 23, the 2-hole display of the punch selection means is performed (step 703). Further, when the 2-hole punching process is not selected, the microprocessor 91 determines whether or not the 3-hole punching process is selected (step 704), and the 3-hole punching process is selected. In that case, as shown in FIG. 24, the three holes of the punch selection means are displayed (step 705). Further, if the 3-hole punching process is not selected, the 5-hole display of the punch selecting means is performed (step 706).
[0090]
Next, as shown in FIG. 25, the microprocessor 91 determines whether or not the punch unit is attached to the post-processing apparatus (step 801), and ends the operation when the punch unit is not attached. To do. Next, it is determined whether or not the 2-hole punching process is set in a state where the 2-hole punching process is displayed on the display panel capable of detecting the pressing position of the control panel 90 (step 802). If the hole punching process is set, two holes are set in the punch display means (step 803). Further, when the 2-hole punching process is not set, the microprocessor 91 determines whether or not the 3-hole punching process is set (step 804), and the 3-hole punching process is set. In this case, 3 holes are set in the punch display means (step 805). Further, if the punching process for three holes is not set, five holes are set in the punch display means (step 806).
[0091]
26 to 29, the punch processing device 59 can perform punch processing with three different hole diameters of 6 mm, 8 mm, and 10 mm. As in the embodiment shown in FIGS. The hole diameter is selectively displayed and set.
[0092]
Next, after setting the number of punch holes and the diameter of the punch holes in the post-processing mode selection screen of the control panel 90 as described above, as shown in FIG. 30, punching is performed on the post-processing mode selection screen. When selected, as shown in FIG. 31 or FIG. 32, the contents of the punch processing executed in the post-processing apparatus are displayed.
[0093]
As described above, in the fifth embodiment, in an apparatus in which a plurality of types of punch units can be attached and detached, it can be seen which punch unit is mounted or selected. Can be reliably prevented.
[0094]
Since other configurations and operations are the same as those of the first embodiment, description thereof is omitted.
[0095]
【The invention's effect】
As described above, according to the present invention, in the paper punching apparatus capable of performing a plurality of different types of punching processing, the timing at which punch scraps are full is detected according to the type of punching processing actually executed. It is possible to provide a paper punching device capable of preventing the operability from deteriorating by displaying the detection of full punch dust unnecessarily by making the best use of the punch waste collection container.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing an image forming apparatus provided with a punch processing apparatus according to Embodiment 1 of the present invention.
FIG. 2 is a block diagram showing an image reading apparatus used in an image forming apparatus provided with a punch processing apparatus according to Embodiment 1 of the present invention.
FIG. 3 is a front view showing a punch processing apparatus according to Embodiment 1 of the present invention.
FIG. 4 is a plan view showing a punch processing apparatus according to Embodiment 1 of the present invention.
FIG. 5 is a block diagram showing a drive mechanism of the punch processing apparatus according to Embodiment 1 of the present invention.
FIG. 6 is a sectional view showing a punch processing apparatus according to Embodiment 1 of the present invention.
FIG. 7 is a cross-sectional view of an essential part showing a post-processing apparatus equipped with a punch processing apparatus according to Embodiment 1 of the present invention.
FIG. 8 is a block diagram showing a punch processing apparatus according to Embodiment 1 of the present invention.
FIG. 9 is a block diagram showing a control circuit of an image forming apparatus provided with a punch processing apparatus according to Embodiment 1 of the present invention.
FIG. 10 is a flowchart showing a control operation of the image forming apparatus including the punch processing apparatus according to the first embodiment of the present invention.
FIG. 11 is a flowchart showing a control operation of the image forming apparatus including the punch processing apparatus according to the first embodiment of the present invention.
FIG. 12 is a flowchart showing a control operation of an image forming apparatus provided with a punch processing apparatus according to Embodiment 2 of the present invention.
FIG. 13 is a flowchart showing a control operation of an image forming apparatus provided with a punch processing apparatus according to Embodiment 2 of the present invention.
FIG. 14 is a flowchart showing a control operation of an image forming apparatus provided with a punch processing apparatus according to Embodiment 3 of the present invention.
FIG. 15 is a flowchart showing a control operation of an image forming apparatus provided with a punch processing apparatus according to Embodiment 3 of the present invention.
FIG. 16 is a flowchart showing a control operation of an image forming apparatus provided with a punch processing apparatus according to Embodiment 3 of the present invention.
FIG. 17 is a flowchart showing a control operation of an image forming apparatus provided with a punch processing apparatus according to Embodiment 3 of the present invention.
FIG. 18 is a flowchart showing a control operation of an image forming apparatus provided with a punch processing apparatus according to Embodiment 4 of the present invention.
FIG. 19 is an explanatory view showing a display section of a control panel of an image forming apparatus provided with a punch processing apparatus according to Embodiment 4 of the present invention.
FIG. 20 is a flowchart showing a control operation of an image forming apparatus provided with a punch processing apparatus according to Embodiment 4 of the present invention.
FIG. 21 is an explanatory view showing a display section of a control panel of an image forming apparatus provided with a punch processing apparatus according to Embodiment 4 of the present invention.
FIG. 22 is a flowchart showing a control operation of an image forming apparatus provided with a punch processing apparatus according to Embodiment 5 of the present invention.
FIG. 23 is an explanatory view showing a display section of a control panel of an image forming apparatus provided with a punching apparatus according to Embodiment 5 of the present invention.
FIG. 24 is an explanatory view showing a display section of a control panel of an image forming apparatus provided with a punching apparatus according to Embodiment 5 of the present invention.
FIG. 25 is a flowchart showing a control operation of an image forming apparatus provided with a punch processing apparatus according to Embodiment 5 of the present invention.
FIG. 26 is a flowchart showing a control operation of the image forming apparatus provided with the punch processing apparatus according to the fifth embodiment of the present invention.
FIG. 27 is an explanatory view showing a display portion of a control panel of an image forming apparatus provided with a punching apparatus according to Embodiment 5 of the present invention.
FIG. 28 is an explanatory view showing a display portion of a control panel of an image forming apparatus provided with a punching apparatus according to Embodiment 5 of the present invention.
FIG. 29 is a flowchart showing a control operation of an image forming apparatus provided with a punch processing apparatus according to Embodiment 5 of the present invention.
FIG. 30 is an explanatory view showing a display portion of a control panel of an image forming apparatus provided with a punching apparatus according to Embodiment 5 of the present invention.
FIG. 31 is an explanatory view showing a display part of a control panel of an image forming apparatus provided with a punching apparatus according to Embodiment 5 of the present invention.
FIG. 32 is an explanatory view showing a display section of a control panel of an image forming apparatus provided with a punch processing apparatus according to Embodiment 5 of the present invention.
[Explanation of symbols]
59: Punch processing apparatus, 70: 2-hole drilling blade, 73: 3-hole drilling blade, 79: Punch scrap collection box, 91: Microprocessor (control means)

Claims (4)

In a punch processing apparatus equipped with a punch waste collection box that can execute a plurality of types of punch processing with different numbers of punch holes or different hole diameters and recovers punch waste generated by the punch processing,
Recognizing means for recognizing the type of punch processing executed by the punch processing device ;
Based on the type of punching process recognized by the recognition means, the punching process is performed each time the punching process is executed while changing the count value for counting punch scraps generated by the punching process being executed once. And a full detection means for counting the waste count value cumulatively and determining that the punch waste collection box is full when the cumulative value of the punch waste count value reaches a predetermined value. A punching apparatus characterized by the above.   The punch processing device includes a first perforation mechanism including a plurality of first perforation blades arranged at a first interval in a direction orthogonal to a sheet conveyance direction, and a plurality of second perforations arranged at a second interval. 2. The punching process according to claim 1, further comprising: at least two or more punching mechanisms of a second punching mechanism comprising two punching blades; and a driving means for driving the two or more punching mechanisms. apparatus.   The punch processing device includes a first perforation mechanism including a plurality of first perforation blades arranged at a first interval in a direction orthogonal to a sheet conveyance direction, and a plurality of second perforations arranged at a second interval. The punch processing apparatus according to claim 1, wherein at least two or more punching mechanisms of the second punching mechanism including two punching blades can be selectively mounted. The predetermined value for determining when the punch scrap collection box is full is set smaller than the capacity of the punch scrap collection box, and when the punch scrap collection box is full, after a series of punching operations are completed, to stop the punching operation, the punching device according to any one of claims 1 to 3, characterized in that a warning.

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