JP2020070166A - Paper feeding parameter management system - Google Patents

Abstract

To reduce failure in paper conveyance in an air paper feeding device.SOLUTION: In a paper feeding parameter management system 100 in which image formation devices 10A, 10B, 10C, 10D, ... comprising paper feeding devices 20A, 20B, 20C, 20D, ... for feeding sheets by blowing air and sucking and a management device 50 are connected via a telecommunication network N, each of the image formation devices transmits paper kind information of the sheets to be fed, an adjusted paper feeding parameter and a conveyance result of paper feeding with the use of the paper feeding parameter to the management device 50, and the management device 50 collects an adjustment result in which the paper kind information, the paper feeding parameter and the conveyance result are associated with one another. The management device 50 refers to the adjustment result, and sets the paper feeding parameter corresponding to the used paper kind information with respect to the image formation device to be processed based on the conveyance result.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a paper feed parameter management system.

  2. Description of the Related Art Conventionally, as a paper feeding device that feeds paper to an image forming apparatus, an air suction type paper feeding device (hereinafter referred to as an air feeding device) is known. In the air feeding device, air is blown to the side surface of a stacked sheet stack to float and separate the sheets, and the uppermost sheet is adsorbed and conveyed, whereby the sheets are sent out one by one. In the air feeding device, optimum feeding conditions (feeding parameters) are set according to the type of paper and the environment.

  Further, in the data collecting and delivering apparatus that collects the adjustment values of the image forming conditions and the transporting conditions from the plurality of image forming apparatuses installed in the market in association with the types of the recording paper, the most adjustment value among the recording papers is obtained. A system that proposes an adjustment value as a recommended value is used (see Patent Document 1). In other words, this system provides the adjustment values that are most frequently used by users and service personnel when the adjustment values are fed back to each machine on the market.

JP, 2008-241881, A

However, in the system described in Patent Document 1, it is unclear whether or not the result of conveying the paper using the adjustment values adjusted by each machine on the market was good, and thus the adjustment values provided to each machine are Even if it was the mode value, it was not always the optimum value.
In particular, in an air feeding device, problems such as jams during transportation are likely to occur due to adjustment of feeding parameters.

  The present invention has been made in view of the above-described problems in the related art, and an object of the present invention is to reduce the problem of paper conveyance in an air feeding device.

  In order to solve the above-mentioned problems, the invention according to claim 1 is provided with an air feeding unit that feeds the sheet by blowing air onto the sheet and adsorbing the sheet, and a plurality of sheet feeding parameters that can be switched in the air feeding unit. A paper feeding parameter management system comprising an air feeding device and a management device connected to the plurality of air feeding devices via a communication network, wherein each of the plurality of air feeding devices is a paper feeding device. Paper type information acquiring means for acquiring paper type information of the target paper, adjusting means for adjusting paper feeding parameters in the air feeding means, paper type information acquired by the paper type information acquiring means, and the adjusting means. A paper feed parameter adjusted by and a transmission means for transmitting the conveyance result of feeding the paper to be fed using the paper feed parameter to the management device, The management device includes a parameter management means for storing in a storage means an adjustment result in which the paper type information, the paper feed parameter, and the transportation result transmitted from each of the plurality of air paper feeding devices are stored, and the storage means. In reference to the adjustment result stored in, for the air feeding device to be processed among the plurality of air feeding devices, it is acquired by the paper type information acquisition unit of the air feeding device to be processed. And a setting unit configured to set a paper feed parameter corresponding to the paper type information based on a transportation result corresponding to the paper feed parameter.

  According to a second aspect of the present invention, in the sheet feeding parameter management system according to the first aspect, the sheet feeding target sheet is fed using the sheet feeding parameter adjusted by the adjusting unit as the conveyance result. It includes information about the number of sheets and a jam that has occurred in sheet feeding using the sheet feeding parameter.

  According to a third aspect of the present invention, in the sheet feeding parameter management system according to the first or second aspect, the transmitting unit uses the sheet feeding parameter adjusted by the adjusting unit at the end of the job to perform the sheet feeding target. The number of sheets of paper that has been fed, and the number of jams that have occurred during sheet feeding using the paper feed parameter, are transmitted to the management device as the conveyance result, and the parameter management means A jam ratio is calculated from the number of jams, and the number of jams and the number of jams are associated with the paper type information and the paper feed parameter transmitted, and the calculated jam ratio is stored in the storage unit as the conveyance result, The setting unit is configured to jam a paper feed parameter corresponding to the paper type information acquired by the paper type information acquisition unit of the air supply apparatus to be processed. But to set the lowest paper feed parameters.

  According to a fourth aspect of the present invention, in the sheet feeding parameter management system according to any one of the first to third aspects, the air feeding unit controls the uppermost sheet that is floated by blowing air on the stacked sheets. A sheet adsorbing section for adsorbing the sheet, and the adjusting means comprises a sheet distance measuring section for measuring a sheet distance between the uppermost sheet adsorbed by the sheet adsorbing section and a sheet next to the uppermost sheet, The paper distance is measured by the paper distance measuring means while changing the air volume of the fan provided in the air feeding means, so that the next paper has an air volume that is not overlapped with the uppermost paper and is not fed. Adjust the paper feed parameters.

  According to a fifth aspect of the present invention, in the paper feed parameter management system according to the fourth aspect, the paper distance measuring unit measures the paper distance from an image taken by a camera.

  According to a sixth aspect of the present invention, in the sheet feeding parameter management system according to any one of the first to fifth aspects, the air feeding unit is configured to remove the uppermost sheet that is floated by blowing air on the stacked sheets. The adjusting means includes a sheet suction section that sucks the sheet and a transport section that conveys the sheet sucked by the sheet suction section, and the uppermost sheet sucked by the sheet suction section is the uppermost sheet. Of the preceding paper, the device includes a feed amount measuring means for measuring the feed amount conveyed while being overlapped with the preceding paper, and changing the air amount of the fan provided in the air feeding means while changing the air amount. The feed amount measuring unit measures the feed amount, and adjusts the sheet feeding parameter so that the feed amount is equal to or less than a predetermined value.

  According to a seventh aspect of the present invention, in the sheet feeding parameter management system according to the sixth aspect, the air feeding unit detects a sheet conveyed by the conveying unit at a predetermined position on a sheet conveying path. The feed amount measuring means, the paper feed start time when the conveyance is started by the conveyance unit from the state where the paper is adsorbed by the paper suction unit, and the paper detection time when the paper is detected by the sensor Based on, the transport time from the paper feed start time to the paper detection time is calculated, and the shift feed amount is calculated from the transport time.

  According to an eighth aspect of the present invention, in the sheet feeding parameter management system according to any one of the first to seventh aspects, each of the plurality of air sheet feeding devices has a sheet setting error in a sheet feeding tray, or A detection unit that detects an adjustment error of the side guide that adjusts the length of the paper feed tray in the width direction of the paper, and a warning when the detection unit detects the sheet setting error or the side guide adjustment error And warning means.

According to a ninth aspect of the present invention, in the paper feed parameter management system according to any one of the first to eighth aspects, the paper type information includes a paper surface property, a basis weight, a rigidity, or a size, The paper type information acquisition unit is a unit that detects the paper type information from the paper to be fed or a unit that acquires the paper type information input by the user.

  According to a tenth aspect of the present invention, in the sheet feeding parameter management system according to any one of the first to ninth aspects, the sheet feeding parameters are the air volume of the fan used for air blowing, the air volume of the fan used for adsorption, and the air blowing. It also includes at least one of the drive time of the fan used for suction, and the control timing for the fan used for air blowing or suction.

  According to the present invention, it is possible to reduce the problem of paper conveyance in the air feeding device.

It is a system configuration diagram of a paper feed parameter management system according to the first embodiment of the present invention. FIG. 3 is a block diagram showing a functional configuration of the image forming apparatus. FIG. 3 is a schematic diagram showing a cross-sectional configuration along a paper feeding direction of a paper feeding unit. 6 is a data configuration example of a paper feed parameter table stored in the image forming apparatus. It is a figure for explaining the paper distance between the uppermost paper and the next paper. It is a graph which shows the relationship of paper distance with respect to an air volume. It is a block diagram which shows the functional structure of a management apparatus. It is an example of a data configuration of an adjustment result management table stored in the management device. 6 is a flowchart showing a paper feed parameter adjustment process executed in the image forming apparatus. 7 is a flowchart showing a paper feed parameter management process executed in the management apparatus. FIG. 16 is a diagram showing a state at the time of starting the paper feeding operation in the case where there is no feed in the second embodiment. FIG. 6 is a diagram showing a state at the time of starting a sheet feeding operation when a feeding is generated. It is a graph which shows the relationship of the amount of feeds with respect to the amount of winds. 13 is a graph showing the relationship between the paper distance and the feed amount in the third embodiment. 6 is a graph showing the relationship between paper distance and air volume.

[First Embodiment]
First, a first embodiment of a paper feed parameter management system according to the present invention will be described. The present invention is not limited to the illustrated example.

FIG. 1 shows the system configuration of a paper feed parameter management system 100 according to the first embodiment. In the sheet feeding parameter management system 100, the plurality of image forming apparatuses 10A, 10B, 10C, 10D, ... And the management apparatus 50 are connected to the Internet or a LAN (Local Area).
Data communication is possible via a communication network N such as a network. The image forming apparatuses 10A, 10B, 10C, 10D, ... Are respectively provided with sheet feeding devices 20A, 20B, 20C, 20D ,. Hereinafter, when the image forming apparatuses 10A, 10B, 10C, 10D, ... And the paper feeding apparatuses 20A, 20B, 20C, 20D, ... Are not distinguished, they are referred to as the image forming apparatus 10 and the paper feeding apparatus 20.

  FIG. 2 shows a functional configuration of the image forming apparatus 10. The image forming apparatus 10 includes a control unit 11, an image forming unit 12, a paper feeding device 20, an operation unit 13, a display unit 14, a storage unit 15, a communication unit 16, an image reading unit 17, a clock unit 18, and the like. , Each unit is connected by a bus.

  The control unit 11 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like, and integrally controls the processing operation of each unit of the image forming apparatus 10. The CPU reads various processing programs stored in the ROM, expands the programs in the RAM, and executes various processes according to the expanded programs.

  The image forming unit 12 forms an image on the paper supplied from the paper feeding device 20 based on the image data read by the image reading unit 17 or the image data received from the external device by the communication unit 16. For example, the image forming unit 12 forms an image by an electrophotographic method using toner of each color of yellow, magenta, cyan, and black.

The paper feeding device 20 includes one or a plurality of paper feeding units 30.
Each of the sheet feeding units 30 is an air feeding unit that feeds a sheet by blowing air and adsorbing the sheet. The paper feeding unit 30 includes a front end fan 31, a side fan 32, a suction fan 33, a tray lifting motor 34, a paper type information detection sensor 35, a paper detection sensor 36, a camera 37, a side guide position detection sensor 38, and the like.

FIG. 3 is a schematic diagram showing a cross-sectional configuration of the paper feeding unit 30 along the paper feeding direction. The paper feeding unit 30 includes a paper feeding tray 40, an elevating unit 41, a conveyor belt 42, a paper suction unit 43, a front end fan 31, a side fan 32, a suction fan 33, paper detection sensors 36A, 36B, and 36C. The sheets stacked on the sheet feed tray 40 are sucked and conveyed by the conveyance belt 42, and are fed one by one to the left in the X direction shown in FIG.
In reality, the lengths of the paper feed tray 40 and the paper in the X direction are sufficiently longer than that of the transport belt 42. The same applies to the following drawings.

  The leading edge fan 31 blows air (sorting air) onto the sheets from the leading edge side of the bundle of sheets stacked on the sheet feeding tray 40 in the sheet feeding direction to separate the uppermost sheet.

  The side fan 32 blows air (side air) onto the paper from both sides of the edge of the paper in the direction (paper width direction) orthogonal to the paper feeding direction of the paper stack stacked on the paper feeding tray 40, and floats the upper paper. Let That is, the side fans 32 are arranged in both directions in the Y direction shown in FIG. 3 (from the front side to the back side with respect to the paper surface of FIG. 3, from the back side to the front side) from both sides in the paper width direction of the sheet bundle. Blow air.

  The transport belt 42 is a transport unit that suctions and transports the sheet that has been floated by the air blown by the front end fan 31 and the side fan 32. The conveyor belt 42 is stretched over a plurality of rollers, and rotates with the rotational driving of at least one of the plurality of rollers. The transport belt 42 has a plurality of vent holes penetrating the front and back sides over the entire surface thereof, and the suction of the paper suction portion 43 allows the paper to be sucked to the lower part of the transport belt 42 via each vent hole. It is possible.

The sheet suction unit 43 includes a suction fan 33, and sucks the uppermost sheet of the sheet stacked on the sheet feed tray 40 by blowing air.
The suction fan 33 sucks air from the ventilation holes formed in the transport belt 42 to suck the paper onto the transport belt 42. That is, the suction fan 33 sucks the sheet upward in the Z direction shown in FIG.

  The tray elevating motor 34 moves the elevating unit 41 provided on the bottom surface of the paper feed tray 40 in the Z direction (vertical direction, paper stacking direction) shown in FIG. 3 to move the position of the paper stacked in the tray. adjust.

  The paper type information detection sensor 35 is a unit that detects paper type information from the paper to be fed in the paper feeding unit 30, and outputs the detected paper type information to the control unit 11. That is, the paper type information detection sensor 35 is a paper type information acquisition unit that acquires the paper type information of the paper to be fed. The paper type information detection sensor 35 includes a reflective photoelectric sensor, a thickness detection sensor, and the like. The paper type information detection sensor 35 may be provided in the paper feed tray 40 or may be provided on the paper conveyance path. The paper type information includes the surface property, basis weight, rigidity, size, etc. of the paper.

  The paper detection sensor 36 is a sensor that detects the paper in the paper feed unit 30, and outputs the detection result to the control unit 11. From the detection result of the paper detection sensor 36, information such as jam occurrence and double feeding can be obtained. For example, when a sheet is detected by a certain sheet detection sensor 36 and is not detected by a sheet detection sensor 36 provided further downstream in the sheet transport direction, or when a certain sheet detection sensor 36 continues to detect the sheet. If it is (the paper does not move), it is judged that a jam has occurred.

The paper detection sensor 36 includes the paper detection sensors 36A, 36B, 36C shown in FIG.
The sheet detection sensor 36 </ b> A detects that the sheet floated by the air blown from the front end fan 31 and the side fan 32 is adsorbed on the lower portion of the conveyor belt 42.
The paper detection sensors 36B and 36C detect the presence or absence of paper at the installation position.
At the time of paper feeding, the paper is in a standby state when it is detected by the paper detection sensor 36A, and when it is confirmed by the paper detection sensors 36B and 36C that there is no paper, that is, the previous paper is downstream from the paper detection sensor 36C. If the paper is conveyed to, the paper feeding is permitted.

  The camera 37 is provided at a position where the uppermost sheet and the next sheet (lower sheet) that are floated by the air blown on the sheets stacked on the sheet feed tray 40 can be photographed, and generate image data.

  The side guide position detection sensor 38 is a sensor that detects the position of the side guide that adjusts the length of the paper feed tray 40 in the paper width direction, and outputs the detection result to the control unit 11. The side guide is a partition plate provided so as to be slidable in the paper width direction, and its position is changed manually or automatically.

The operation unit 13 includes a touch panel formed so as to cover the display screen of the display unit 14, various operation buttons such as a number button and a start button, and outputs an operation signal based on a user operation to the control unit 11.
The display unit 14 is configured by an LCD (Liquid Crystal Display), and displays various screens according to the instruction of the display signal input from the control unit 11.

  The storage unit 15 includes a storage device such as a non-volatile semiconductor memory or a hard disk, and stores data related to various processes. The storage unit 15 includes a sheet feed number counter for each sheet feed unit 30 of the sheet feeding device 20. The storage unit 15 also stores paper setting information in which the paper feed tray 40 of each paper feed unit 30 and the paper type information of the paper stored in the paper feed tray 40 are associated with each other.

  FIG. 4 shows a data configuration example of the paper feed parameter table 151 stored in the storage unit 15 of the image forming apparatus 10. The paper feed parameter table 151 stores paper type information, paper feed parameters, the number of fed paper sheets, and the number of jams in association with each other.

In the "paper type information" field, the paper type, size, and basis weight are stored as the paper type information of the paper for which the paper feed parameters have been adjusted.
In the "paper feeding parameter" field, the air volume of the side fan 32 (side air) and the air volume of the tip fan 31 (sorting air) are stored as the adjusted paper feed parameters.
The number of fed sheets (sheets specified by the sheet type information) using the adjusted sheet feeding parameter is stored in the “sheet feeding number” field.
The “number of jams” field stores the number of jams that have occurred during sheet feeding using the adjusted sheet feeding parameter.

  The communication unit 16 transmits / receives data to / from an external device such as the management device 50 connected to the communication network N.

  The image reading unit 17 optically scans a document conveyed from the ADF (Auto Document Feeder) onto the contact glass or a document placed on the contact glass, and illuminates and scans the document from the light source. The reflected light of the light is focused on the light receiving surface of a CCD (Charge Coupled Device) sensor, the original image is read, the read image is A / D converted, and the obtained image data is output to the control unit 11.

  The timekeeping unit 18 has a timekeeping circuit (RTC: Real Time Clock), which measures the current time and outputs it to the control unit 11.

  The control unit 11 is capable of switching the paper feed parameters in the paper feed unit 30, and controls each unit of the paper feed device 20 based on the set paper feed parameters. The sheet feeding parameter is a parameter relating to sheet feeding, and is an air volume of a fan (tip fan 31, side fan 32) used for blowing air, an air volume of a fan (adsorption fan 33) used for suction, a fan used for blowing or suction (tip fan 31 , The side fan 32, the suction fan 33), and at least one of the control timings for the fans (tip fan 31, side fan 32, suction fan 33) used for blowing or sucking air.

The control unit 11 adjusts the paper feed parameters in the paper feed unit 30. That is, the control unit 11 functions as an adjusting unit.
For example, the control unit 11 adjusts the paper feeding parameters in the paper feeding unit 30 based on the operation of the user's operation unit 13.

Further, the control unit 11 automatically adjusts the paper feed parameters in the paper feed unit 30. The control unit 11 functions as a sheet distance measuring unit that measures the sheet distance between the uppermost sheet sucked by the sheet suction section 43 and the sheet next to the uppermost sheet. Specifically, the control unit 11 measures the sheet distance between the uppermost sheet and the next sheet from the image captured by the camera 37.
The control unit 11 measures the sheet distance from the image captured by the camera 37 while changing the air flow rate of the fan included in the sheet feeding unit 30, and the next sheet may be fed while overlapping the uppermost sheet. Adjust the paper feed parameters so that there is no air volume.

FIG. 5 shows a state at the start of the sheet feeding operation in the sheet feeding unit 30 corresponding to the sheet to be fed. When the feeding is started, the uppermost sheet P1 floats and is attracted to the lower surface of the transport belt 42 by the sheet suction unit 43. The paper detection sensor 36 </ b> A detects that the paper P <b> 1 that has floated due to the air blown from the front end fan 31 and the side fan 32 is adsorbed to the lower portion of the conveyor belt 42. At that time, the control unit 11 measures the sheet distance D1 between the uppermost sheet P1 and the next sheet P2 from the image captured by the camera 37. The control unit 11 measures the sheet distance D1 while changing the air volume of every several tens of sheets, and obtains the relationship of the sheet distance D1 to the air volume. Here, the case where the air volume of the side fan 32 is changed as the air volume of the air will be described as an example, but the air volumes of the tip fan 31 and the suction fan 33 may be changed.

FIG. 6 is a graph showing the relationship between the sheet distance D1 and the air volume.
The control unit 11 is sufficient to float the uppermost sheet P1 to the conveyor belt 42, and can convey the uppermost sheet P1 without overlapping the uppermost sheet P1 and the next sheet P2. Find the range of. Further, when determining the air volume of the air, the control unit 11 sets the number of jams relative to the number of fed sheets to be relatively small (compared to the front and rear air volumes). The control unit 11 sets the air volume that satisfies the above conditions as the optimum value.
Note that the jams handled here are only those that have occurred in the paper feeding device 20.

The control unit 11 communicates the paper type information acquired by the paper type information detection sensor 35, the adjusted paper feeding parameter, and the transportation result of feeding the paper to be fed using the paper feeding parameter, to the communication unit. 16 to the management device 50. That is, the control unit 11 and the communication unit 16 function as a transmission unit.
The conveyance result includes the number of sheets of paper to be fed using the adjusted paper feed parameter, and information regarding a jam that has occurred in the paper feed using the paper feed parameter. The information regarding jams includes at least the number of jam occurrences (number of jams).

  At the end of the job, the control unit 11 determines the number of sheets to be fed using the adjusted feeding parameters and the number of jams generated in the feeding using the feeding parameters, as a conveyance result. To the management device 50.

The control unit 11 detects a paper setting error with respect to the paper feeding tray 40 or a misadjustment of a side guide that adjusts the length of the paper feeding tray 40 in the paper width direction. That is, the control unit 11 functions as a detection unit.
The control unit 11 warns when a paper setting error or a side guide adjustment error is detected. That is, the control unit 11 functions as a warning means. Specifically, the control unit 11 causes the display unit 14 to display a message indicating that a paper setting error or a side guide adjustment error has been detected.

  FIG. 7 shows a functional configuration of the management device 50. The management device 50 includes a control unit 51, a storage unit 52, a communication unit 53, and the like, and each unit is connected by a bus. The management apparatus 50 collects and accumulates the sheet feeding parameters in the plurality of image forming apparatuses 10 (sheet feeding apparatuses 20) and provides the sheet feeding parameters to the respective image forming apparatuses 10 (sheet feeding apparatuses 20).

  The control unit 51 includes a CPU, a ROM, a RAM, and the like, and controls the processing operation of each unit of the management device 50 as a whole. The CPU reads various processing programs stored in the ROM, expands the programs in the RAM, and executes various processes according to the expanded programs.

  The storage unit 52 includes a storage device such as a non-volatile semiconductor memory or a hard disk, and stores data related to various processes.

  FIG. 8 shows a data configuration example of the adjustment result management table 521 stored in the storage unit 52 of the management device 50. The adjustment result management table 521 stores paper type information, paper feed parameters, and jam ratios in association with each other.

In the “paper type information” field, the paper type, size, and basis weight are stored as the paper type information acquired from the image forming apparatus 10.
In the “paper feeding parameter” field, the air volume of the side fan 32 (side air) and the air volume of the tip fan 31 (separation air) are stored as the paper feed parameters acquired from the image forming apparatus 10.
The "jam rate" field stores a jam rate [%] when the paper specified by the paper type information is fed using the paper feed parameter.

  The communication unit 53 transmits / receives data to / from an external device such as the image forming apparatus 10 connected to the communication network N.

  The control unit 51 causes the storage unit 52 to store the adjustment result in which the paper type information, the paper feed parameter, and the conveyance result transmitted from each of the plurality of image forming apparatuses 10 are associated with each other. That is, the control unit 51 functions as a parameter management unit. Specifically, the control unit 51 updates the adjustment result management table 521 including the correspondence relationship between the paper type information, the paper feed parameter, and the conveyance result.

The control unit 51 calculates the jam ratio from the number of sheets and the number of jams transmitted from each of the plurality of image forming apparatuses 10. The jam ratio is calculated by (the number of jams generated in the sheet feeding using the sheet feeding parameter / the number of sheets fed by using the sheet feeding parameter) × 100 [%].
The control unit 51 stores the calculated jam ratio in the storage unit 52 as the conveyance result in association with the paper type information and the paper feed parameter transmitted together with the number of sheets and the number of jams.

  The control unit 51 compares the calculated jam rate with the jam rate of the sheet feeding parameter corresponding to the sheet type information of the sheet to be processed, which is originally stored in the adjustment result management table 521, and is calculated. When the jam ratio is lower, the paper feed parameter in the adjustment result management table 521 is replaced with the paper feed parameter received from the image forming apparatus 10. Specifically, the control unit 51 associates the paper type information of the paper to be processed, the newly obtained paper feed parameter, and the jam ratio calculated for the paper feed parameter with each other and associates them with the adjustment result management table. 521. In this way, the adjustment result management table 521 accumulates the paper feed parameter with the lowest jam ratio for each paper type information.

The control unit 51 refers to the adjustment result stored in the storage unit 52, and with respect to the image forming apparatus 10 to be processed among the plurality of image forming apparatuses 10, the paper type of the image forming apparatus 10 to be processed. The paper feed parameter corresponding to the paper type information acquired by the information detection sensor 35 is set based on the transport result corresponding to the paper feed parameter. That is, the control unit 51 functions as a setting unit.
The control unit 51 sets the paper feed parameter having the lowest jam ratio among the paper feed parameters corresponding to the paper type information acquired by the paper type information detection sensor 35 of the image forming apparatus 10 to be processed.

Next, the operation of the paper feed parameter management system 100 will be described.
FIG. 9 is a flowchart showing the paper feed parameter adjustment processing executed in the image forming apparatus 10. This processing is realized by software processing in cooperation with the CPU of the control unit 11 and the program stored in the ROM.

First, the control unit 11 determines whether there is a paper setting error or a side guide adjustment error (step S1).
Specifically, the control unit 11 refers to the paper setting information stored in the storage unit 15 and is associated with the paper feed tray 40 designated by the operation unit 13 (or via the communication unit 16). Reads the paper type information for the paper that is being used. Further, the control unit 11 acquires the paper type information of the paper actually stored in the designated paper feed tray 40 from the paper type information detection sensor 35 corresponding to the designated paper feed tray 40. The control unit 11 compares the paper type information read from the storage unit 15 with the paper type information acquired from the paper type information detection sensor 35, and determines whether the two match. The control unit 11 determines that there is a paper setting error when the two do not match, and determines that the paper setting is correct (there is no paper setting error) when the two match.

  Further, the control unit 11 acquires the position of the side guide detected by the side guide position detection sensor 38 corresponding to the paper feed tray 40 designated by the operation unit 13 (or via the communication unit 16), and feeds the paper. It is determined whether the position is within the reference range for the target paper size. The reference range means that the width of the side guide in the paper width direction is within a predetermined range with respect to the paper size (for example, paper size + 0.1 to 0.2 mm). When the position of the side guide is not within the reference range, the control unit 11 determines that there is an adjustment error in the side guide, and when the position of the side guide is within the reference range, the side guide is correctly adjusted. It has been judged that there is no mistake in adjusting the side guide.

  When setting the paper on the paper feed tray 40, when the paper size is detected by a sensor (encoder or the like) and the position of the side guide is automatically widened by about 0.1 to 0.2 mm from the detected width Therefore, it is not necessary to judge the side guide adjustment error.

  If there is a paper setting error or a side guide adjustment error in step S1 (step S1; YES), the control unit 11 warns the user (step S2) and returns to step S1. Specifically, regarding the detected paper setting error or side guide adjustment error, the control unit 11 causes the display unit 14 to display a message indicating that the error has been detected.

  If there is no paper setting error or side guide adjustment error in step S1 (step S1; NO), the control unit 11 determines the paper type of the paper to be fed detected by the paper type information detection sensor 35. Information is acquired (step S3).

  Next, the control unit 11 transmits the paper type information acquired in step S3 to the management device 50 via the communication unit 16 (step S4), and the management device 50 receives the paper feed parameter corresponding to the paper type information. Request (step S5).

  Next, the control unit 11 determines whether or not the paper feed parameter is acquired from the management device 50 via the communication unit 16 in response to the paper feed parameter request to the management device 50 (step S6).

When the paper feed parameter is acquired from the management device 50 (step S6; YES), the control unit 11 sets the paper feed parameter acquired from the management device 50.
Then, the control unit 11 starts the sheet feeding by the sheet feeding unit 30 of the sheet feeding device 20 using the set sheet feeding parameter (step S7). The control unit 11 controls the image forming unit 12 as the paper is fed, and forms an image on the fed paper.

Next, the control unit 11 adjusts the paper feed parameter (step S8). For example, the control unit 11 adjusts the air volume of the tip fan 31, the air volume of the side fan 32, the air volume of the suction fan 33, the drive time of each fan 31 to 33, the control timing for each fan 31 to 33, and the like. Specifically, the control unit 11 measures the sheet distance from the image captured by the camera 37 while changing the air volume of the side fan 32, and the sheet next to the uppermost sheet overlaps with the uppermost sheet. Adjust the paper feed parameters so that the air volume is not fed. Further, the control unit 11 determines the occurrence of a jam from the detection result of the paper detection sensor 36, and obtains the range of the air volume in which the number of jams relative to the number of fed sheets is relatively small. The control unit 11 determines, as an optimum value, an air volume at which the number of jams relative to the number of fed sheets is relatively small while avoiding double feeding.

Further, it is also possible to change the setting values of various paper feed parameters adjusted by the user from the operation unit 13.
The control unit 11 registers the adjusted paper feed parameter in the paper feed parameter table 151 of the storage unit 15 in association with the paper type information.

  While executing the job, the control unit 11 counts the number of fed sheets by the sheet feeding number counter, and stores the occurrence of the jam determined from the detection result of the sheet detection sensor 36 in the storage unit 15.

  Next, the control unit 11 determines whether or not the job is completed (step S9). When the job is not completed (step S9; NO), the process returns to step S9.

  When the job is completed in step S9 (step S9; YES), the control unit 11 associates the number of sheets to be fed and the number of jams in the job with the previously registered sheet type information and sheet feeding parameter, It is stored in the paper feed parameter table 151 of the storage unit 15.

  Next, the control unit 11 transmits the adjusted sheet feeding parameters and the transportation result (the number of fed sheets and the number of jams) to the management device 50 via the communication unit 16 (step S10). When the paper type information transmitted in step S4 is included, the image forming apparatus 10 transmits the paper type information, the paper feed parameter, and the transportation result to the management device 50.

  In step S6, when the paper feed parameter is not acquired from the management device 50 (step S6; NO), or after step S10, the paper feed parameter adjustment processing ends.

  FIG. 10 is a flowchart showing the paper feed parameter management process executed by the management device 50. This processing is realized by software processing in cooperation with the CPU of the control unit 51 and the program stored in the ROM.

  First, the control unit 51 acquires the paper type information from any one of the image forming apparatuses 10 via the communication unit 53 (step S11), and determines whether the image forming apparatus 10 has requested a paper feeding parameter. Yes (step S12).

  When the image forming apparatus 10 requests the sheet feeding parameter (step S12; YES), the control unit 51 refers to the adjustment result management table 521 stored in the storage unit 52, and refers to the image forming apparatus 10 It is determined whether or not there is data corresponding to the paper type information acquired from (step S13).

  If there is the corresponding data (step S13; YES), the control unit 51 acquires the paper feed parameter corresponding to the paper type information acquired from the image forming apparatus 10 from the adjustment result management table 521, and the communication unit 53. It is transmitted to the image forming apparatus 10 which has made a request via (step S14). Since the adjustment result management table 521 stores the paper feed parameter having the lowest jam ratio as the paper feed parameter corresponding to the same paper type information, the paper feed provided from the management device 50 to the image forming apparatus 10 is performed. The parameters are optimum values.

In step S13, when there is no corresponding data (step S13; NO),
The control unit 51 transmits the recommended value (default value) of the paper feed parameter corresponding to the paper type information acquired from the image forming apparatus 10 to the requested image forming apparatus 10 via the communication unit 53 (step S15). The recommended value of the paper feed parameter corresponding to each paper type information is a value determined by the developer and is stored in the storage unit 15 in advance.

  After step S14 or step S15, the control unit 51 determines whether the adjusted sheet feeding parameter and the transportation result are acquired from the image forming apparatus 10 via the communication unit 53 (step S16).

  When the adjusted paper feed parameters and the conveyance result are acquired from the image forming apparatus 10 (step S16; YES), the control unit 51 determines that the number of paper feed included in the conveyance result is a predetermined reference number (for example, (1,000 sheets, 3000 sheets, etc.) or more (step S17). Here, the number of fed sheets is compared with the reference number because it is not suitable for judging the quality of the conveyance result unless the number of fed sheets is a certain number.

  When the number of fed sheets is equal to or larger than the reference number (step S17; YES), the control unit 51 calculates the jam ratio from the number of fed sheets and the number of jams included in the conveyance result (step S18).

Next, the control unit 51 determines whether or not the calculated jam ratio is lower than the jam ratio corresponding to the original paper feed parameter stored in the adjustment result management table 521 (step S19).
When the calculated jam ratio is lower than the jam ratio corresponding to the original paper feed parameter (step S19; YES), the control unit 51 causes the paper type information acquired in step S11 and the paper feed information acquired in step S16. The adjustment result is updated by associating the paper parameter with the jam ratio calculated in step S18 (step S20). Specifically, the control unit 51 associates the paper type information, the paper feed parameter, and the jam ratio with each other, registers them in the adjustment result management table 521 of the storage unit 52, and replaces the original data regarding the paper feed parameters.

  For example, when the management apparatus 50 receives 3300 sheets and two jams in the conveyance result received from the image forming apparatus 10 (paper feeder 20) on the market, the jam ratio is 0.06%. Become. When the jam ratio of the paper feed parameters under the same condition (paper type information) managed in the management device 50 is 0.08%, the jam ratio of the paper feed parameter set this time is lower, so the jam ratio is 0. The paper feed parameter of 0.06% is determined to be the optimum value, and the paper feed parameter is updated.

  If there is no corresponding data in step S13 (step S13; NO), the original paper feed parameter to be compared in step S19 does not exist, so that the process proceeds to step S20 after step S18.

  In step S12, when there is no request for the paper feed parameter from the image forming apparatus 10 (step S12; NO), in step S16, when the adjusted paper feed parameter and the conveyance result are not acquired from the image forming apparatus 10 (step S16; If the number of fed sheets is less than the reference number in step S17 (step S17; NO), the jam ratio calculated in step S19 is equal to or larger than the value of the jam ratio corresponding to the original sheet feeding parameter. If (step S19; NO) or after step S20, the paper feed parameter management process ends.

As described above, according to the first embodiment, the management device 50 transmits the paper type information, the paper feed parameter, and the jam ratio (conveyance result) transmitted from the plurality of image forming devices 10 (paper feed devices 20). By correlating and managing the above, it is possible to set the paper feed parameter suitable for the paper type of the paper used in each image forming apparatus 10 based on the conveyance result. Therefore, it is possible to reduce the problem of sheet conveyance in the image forming apparatus 10 (sheet feeding apparatus 20).

  Further, the management apparatus 50 calculates the jam ratio based on the number of fed sheets and the number of jams acquired from each image forming apparatus 10 (sheet feeding apparatus 20), and the sheet feeding parameter having the lowest jam rate is set to the image forming apparatus 10. Since the setting is made, each image forming apparatus 10 can reduce the jam at the time of feeding.

  Further, in each image forming apparatus 10 (paper feeding device 20), the paper distance between the uppermost paper to be fed and the next paper is measured by changing the air volume of the fan of the paper feeding unit 30, The paper feed parameters can be adjusted automatically.

  Further, in each image forming apparatus 10 (paper feeding device 20), when a paper setting error or a side guide adjustment error is detected, a warning is issued, so that a situation in which a jam is likely to occur can be avoided.

[Second Embodiment]
Next, a second embodiment to which the present invention is applied will be described.
The paper feed parameter management system according to the second embodiment has the same configuration as the paper feed parameter management system 100 according to the first embodiment. Therefore, FIGS. 1 to 3 and 7 are referred to. Illustration and description of the configuration are omitted. The configuration and processing characteristic of the second embodiment will be described below.

In the second embodiment, in the image forming apparatus 10 (paper feeding device 20), when adjusting the paper feeding parameters, the optimum value is obtained based on the feed amount.
The feeding is that when the uppermost sheet of the stacked sheet bundle is conveyed, the next sheet is conveyed and conveyed. The feed amount is the distance fed by suction and conveyance to the previous sheet.

  The control unit 11 measures the feed amount by which the uppermost sheet adsorbed by the sheet adsorbing unit 43 is conveyed and overlapped with the preceding sheet by the adsorption and conveyance of the uppermost sheet with respect to the preceding sheet. It functions as a feed amount measuring means. Specifically, the paper detection sensor 36B detects the paper conveyed by the conveyor belt 42 at a predetermined position (the position of the paper detection sensor 36B) on the paper conveyance path. The control unit 11 is based on the paper feed start time when the conveyance by the conveyance belt 42 is started from the state where the paper is adsorbed by the paper adsorption unit 43 and the paper detection time when the paper is detected by the paper detection sensor 36B. The transport time from the paper feed start time to the paper detection time is calculated, and the feed amount is calculated from the transport time.

It should be noted that the control unit 11 acquires the current time from the clock unit 18 when the conveyance of the paper by the conveyance belt 42 is started after the paper is detected by the paper detection sensor 36A, and sets it as the paper feed start time.
Further, when the paper is conveyed by the conveyor belt 42 and the paper is detected by the paper detection sensor 36B, the control unit 11 acquires the current time from the clock unit 18 and sets it as the paper detection time.

  The control unit 11 measures the feed amount while changing the air flow rate of the fan included in the feed unit 30, and adjusts the feed parameter so that the feed amount is equal to or less than a predetermined value.

FIG. 11 shows a state when the sheet feeding operation is started in the sheet feeding unit 30 when there is no feed. The sheet P11 is sucked onto the lower surface of the transport belt 42 by the sheet suction unit 43, and the leading end position of the sheet P11 in a state where the transport belt 42 is not rotated is defined as the paper feed start position X0. Further, the transport time from when the leading edge of the paper P11 reaches the paper detection sensor 36B from the paper feed start position X0 is T0. The transport time T0 in the state where there is no feed is stored in the storage unit 15 in advance.
The arrow connecting the paper feed start position X0 and the position of the paper detection sensor 36B shown in FIG. 11 is for explaining the carrying time T0 carried between them.

FIG. 12 shows a state at the time of starting the sheet feeding operation in the sheet feeding unit 30 when the feeding is generated. When the sheet P12 is attracted to the lower surface of the transport belt 42 by the sheet suction unit 43, the sheet feeding start position X1, which is the leading end position of the sheet P12, is located downstream of X0 in the sheet transport direction. Therefore, the transport time T1 from when the paper P12 reaches the paper detection sensor 36B from the paper feed start position X1 is shorter than T0. The difference ΔT between the transport times T1 and T0 is calculated.
ΔT = T0-T1
It should be noted that the arrow connecting the paper feed start position X1 and the position of the paper detection sensor 36B and the arrow connecting the paper feed start position X0 and the paper feed start position X1 shown in FIG. 12 respectively describe the transport time T1 and the difference ΔT. It is for doing.

  Since the shift feed amount is calculated from (ΔT × conveyance speed of the transport belt 42), the larger the ΔT, the larger the shift feed amount of the paper. In FIG. 12, the shift feed amount is the distance between the sheet feed start position X1 and the sheet feed start position X0 when there is no shift feed.

  The control unit 11 measures the feed amount while changing the air flow amount for every several tens of sheets, and obtains the relationship between the feed amount and the air feed amount. Here, the case where the air volume of the side fan 32 is changed as the air volume of the air will be described as an example, but the air volumes of the tip fan 31 and the suction fan 33 may be changed.

FIG. 13 is a graph showing the relationship between the air flow rate and the feed amount.
The control unit 11 obtains an air volume range in which the feed amount is small (less than or equal to a predetermined value). Further, when determining the air volume of the air, the control unit 11 sets the number of jams relative to the number of fed sheets to be relatively small (compared to the front and rear air volumes). The control unit 11 sets the air volume that satisfies the above conditions as the optimum value.
Note that the jams handled here are only those that have occurred in the paper feeding device 20.

Regarding the operation of the paper feed parameter management system of the second embodiment, the paper feed parameter adjustment processing executed by the image forming apparatus 10 (see FIG. 9) and the paper feed parameter management processing executed by the management apparatus 50 (see FIG. 9). 10)).
However, in step S8 of the paper feed parameter adjustment processing, the paper feed parameter adjustment is based on the feed amount.

According to the second embodiment, similar to the first embodiment, the paper feeding parameters suitable for the paper type of the paper used in each image forming apparatus 10 (paper feeding device 20) are determined based on the transportation result. It is possible to reduce the trouble of sheet conveyance in the image forming apparatus 10 (sheet feeding apparatus 20).
Specifically, since the management device 50 sets the paper feed parameter having the lowest jam rate in the image forming device 10, each image forming device 10 can reduce the jam at the time of paper feeding.

  Further, in each image forming apparatus 10 (sheet feeding apparatus 20), the sheet feeding parameter is automatically measured by measuring the amount of paper feeding of the sheet to be fed while changing the air volume of the fan of the sheet feeding unit 30. Can be adjusted.

In addition, in the second embodiment, the case where the feed amount is calculated from the transport time from the paper feed start position to the paper detection sensor 36B has been described. However, from the image obtained by photographing the paper with the camera, The feed amount may be measured.
The first method using a camera is to mark in advance the paper feed start position when the feed amount is 0, and take a picture with the camera so that the current paper feed start position and the mark are within the image. , The feed amount is directly measured by detecting the current feeding start position and the mark from the photographed image. The current paper feed start position is obtained by detecting the leading edge position of the paper from an image taken while the paper is detected by the paper detection sensor 36A and the transport belt 42 is not rotating.
A second method using a camera is to detect that the leading edge of the paper reaches a predetermined position from the moving image data obtained by photographing the conveyed paper with the camera, thereby detecting the paper detection sensor 36B. As in the case of using, the feed amount is calculated from the transport time from the paper feed start time to the paper detection time.

[Third Embodiment]
Next, a third embodiment to which the present invention is applied will be described.
The paper feed parameter management system according to the third embodiment has the same configuration as the paper feed parameter management system 100 according to the first embodiment, and therefore FIGS. 1 to 3 and 7 are referred to. Illustration and description of the configuration are omitted. The configuration and processing characteristic of the third embodiment will be described below.

  In the third embodiment, in the image forming apparatus 10 (paper feeding device 20), when adjusting the paper feeding parameters, the distance between the uppermost paper to be fed and the next paper, and the previous paper. The optimum value is obtained based on the feed amount due to the suction and the conveyance. That is, in the automatic adjustment of the paper feed parameters, the method described in the first embodiment and the method described in the second embodiment are combined.

  The image forming apparatus 10 (sheet feeding apparatus 20) acquires the optimal sheet feeding parameters at the present time from the management apparatus 50 before starting sheet feeding, and starts sheet feeding operation. The control unit 11 measures the sheet distance between the uppermost sheet and the next sheet from the image captured by the camera 37, and determines the conveyance time from the sheet feeding start time to the sheet detection time by the sheet detection sensor 36B. The measurement is performed, and the feed amount is calculated from the transportation time. The control unit 11 measures the sheet distance and the shift feed amount while changing the air flow rate for every tens of sheets, and obtains the relationship between the sheet distance and the shift feed amount. The method for measuring the sheet distance and the shift feed amount is the same as those in the first and second embodiments. Here, the case where the air volume of the side fan 32 is changed as the air volume is taken as an example. As described, the air volumes of the tip fan 31 and the suction fan 33 may be changed.

FIG. 14 is a graph showing the relationship between the paper distance and the feed amount.
The control unit 11 obtains the range of the paper distance where the feed amount is equal to or less than the predetermined value.

FIG. 15 is a graph showing the relationship between the paper distance and the air volume.
The control unit 11 obtains the range of the air volume with respect to the range of the paper distance where the feed amount is equal to or less than the predetermined value. At this time, if the air volume of the air is too small, the paper does not float up to the conveyor belt 42, and if the air volume of the air is too large, a plurality of sheets of paper is floated. Therefore, the air volume during that time is set as an optimum value.

Regarding the operation of the paper feed parameter management system according to the third embodiment, the paper feed parameter adjustment processing executed by the image forming apparatus 10 (see FIG. 9) and the paper feed parameter management processing executed by the management apparatus 50 (see FIG. 10)).
However, in step S8 of the paper feed parameter adjustment processing, the paper feed parameter adjustment is based on the paper distance and the shift feed amount.

According to the third embodiment, similar to the first embodiment, sheet feeding parameters suitable for the paper type of the sheet used in each image forming apparatus 10 (sheet feeding apparatus 20) are determined based on the conveyance result. It is possible to reduce the trouble of sheet conveyance in the image forming apparatus 10 (sheet feeding apparatus 20).
Specifically, since the management device 50 sets the paper feed parameter having the lowest jam rate in the image forming device 10, each image forming device 10 can reduce the jam at the time of paper feeding.

  Further, in each image forming apparatus 10 (paper feeding device 20), while changing the air volume of the fan of the paper feeding unit 30, the paper distance between the uppermost paper to be fed and the next paper is fed. By measuring the paper feed amount, the paper feed parameters can be automatically adjusted.

  The description in each of the above embodiments is an example of the paper feed parameter management system according to the present invention, and the present invention is not limited to this. The detailed configuration and detailed operation of each device constituting the system can be appropriately changed without departing from the spirit of the present invention.

For example, in the management device 50, instead of storing only the optimum value in the adjustment result management table 521, data collected from the image forming device 10 and data obtained therefrom (paper type information, paper feed parameters, transport results ( All the combinations of (jam rate) are left, and the sheet feeding parameter having the lowest jam rate is extracted from the sheet feeding parameters corresponding to the sheet type information when providing the sheet feeding parameter to the image forming apparatus 10. May be
Further, in the management device 50, in addition to the jam rate or in place of the jam rate, the number of fed sheets and the number of jams are stored in the adjustment result management table 521 in association with the sheet type information and the sheet feeding parameters. May be

  Further, in steps S1 and S2 of the paper feed parameter adjustment processing (see FIG. 9) executed by the image forming apparatus 10, if there is a paper setting error or side guide adjustment error, the paper is fed until it is eliminated. Although it is assumed that the paper is not started, a jam that occurs when there is a paper setting error or a side guide adjustment error may be excluded from the data when calculating the jam ratio.

  Further, in the first embodiment and the third embodiment, the case where the paper distance between the uppermost paper and the next paper is measured using the camera 37 (image) has been described, but the paper distance is measured. A sensor for doing so may be used.

  Further, in each of the above embodiments, the paper type information detection sensor 35 is used to acquire the paper type information of the paper to be fed, but the control unit 11 of the image forming apparatus 10 is input by the user from the operation unit 13. It is also possible to acquire the paper type information obtained.

  In each of the above-described embodiments, the image forming apparatus 10 is configured to include the sheet feeding device 20, and the control unit 11 also serves as the control unit that controls the sheet feeding device 20. A control unit other than 11 and a communication unit that performs data communication with the image forming apparatus 10 or the management apparatus 50 may be provided.

In addition, when the management device 50 collects the paper type information, the paper feed parameters, and the transportation result from each image forming device 10 (paper feed device 20), the management device 50 acquires disturbance information such as environmental information (temperature, humidity, etc.). May be In this case, the control unit 51 of the management apparatus 50 may set the paper feed parameter corresponding to the paper type information and the disturbance information acquired by the image forming apparatus 10 for the image forming apparatus 10 to be processed. it can.

  In addition, when the management apparatus 50 collects the paper type information, the paper feeding parameters, and the transportation result from each image forming apparatus 10 (paper feeding apparatus 20), the model information of the image forming apparatus 10 or the paper feeding apparatus 20 of the transmission source is displayed. It may be acquired. In this case, the control unit 51 of the management device 50 may set the paper feed parameter corresponding to the paper type information and the model information acquired by the image forming apparatus 10 for the image forming apparatus 10 to be processed. it can.

10 image forming apparatus 10A, 10B, 10C, 10D image forming apparatus 11 control section 12 image forming section 13 operation section 14 display section 15 storage section 16 communication section 20 sheet feeding apparatus 20A, 20B, 20C, 20D sheet feeding apparatus 30 sheet feeding Part 31 Tip fan 32 Side fan 33 Adsorption fan 35 Paper type information detection sensor 36 Paper detection sensor 36A, 36B, 36C Paper detection sensor 37 Camera 38 Side guide position detection sensor 40 Paper feed tray 42 Conveyor belt 43 Paper suction part 50 Management device 51 control unit 52 storage unit 53 communication unit 100 paper feed parameter management system 151 paper feed parameter table 521 adjustment result management table N communication network

Claims (10)

A plurality of air-feeding devices, each having an air-feeding device that feeds the paper by blowing and sucking the paper, are capable of switching the paper-feeding parameters in the air-feeding device, and the plurality of air-feeding devices and a communication network. A paper feed parameter management system including a management device connected via
Each of the plurality of air feeding devices,
Paper type information acquisition means for acquiring the paper type information of the paper to be fed,
Adjusting means for adjusting the paper feeding parameters in the air feeding means,
The paper type information acquired by the paper type information acquiring unit, the paper feeding parameter adjusted by the adjusting unit, and the transportation result of feeding the paper to be fed using the paper feeding parameter are transmitted to the management device. Transmission means to
Equipped with
The management device is
Parameter management means for storing in the storage means the adjustment result in which the paper type information transmitted from each of the plurality of air paper feeding devices, the paper feeding parameter, and the transportation result are associated with each other,
By referring to the adjustment result stored in the storage means, for the air feeding device to be processed among the plurality of air feeding devices, the paper type information acquisition means of the air feeding device to be processed Setting means for setting the paper feed parameter corresponding to the acquired paper type information based on the transport result corresponding to the paper feed parameter,
Paper feed parameter management system equipped with.   The conveyance result includes information on the number of sheets of the sheet to be fed using the sheet feeding parameter adjusted by the adjusting unit, and information on a jam generated in sheet feeding using the sheet feeding parameter. The paper feed parameter management system according to Item 1. At the end of the job, the transmission unit uses the paper feed parameters adjusted by the adjustment unit to feed the number of sheets of paper to be fed, and a jam generated during paper feed using the paper feed parameters. The number is transmitted to the management device as the transportation result,
The parameter management unit calculates a jam rate from the transmitted number of sheets and the number of jams, and the calculated jam rate in association with the sheet type information and the sheet feeding parameter transmitted together with the number of sheets and the number of jams. Is stored in the storage means as the transportation result,
2. The setting unit sets a paper feed parameter having the lowest jam ratio among the paper feed parameters corresponding to the paper type information acquired by the paper type information acquisition unit of the air-feeding device to be processed. The paper feed parameter management system described in 2. The air feeding unit includes a sheet suction unit that sucks the uppermost sheet that is floated by blowing air on the stacked sheets,
The adjusting unit includes a sheet distance measuring unit that measures a sheet distance between the uppermost sheet adsorbed by the sheet adsorbing unit and a sheet next to the uppermost sheet, and a fan included in the air feeding unit. The paper feed parameter is adjusted such that the paper distance is measured by the paper distance measuring means while changing the air flow, and the air flow is such that the next paper does not overlap with the uppermost paper and is not fed. The sheet feeding parameter management system according to any one of 1 to 3.   The sheet feeding parameter management system according to claim 4, wherein the sheet distance measuring unit measures the sheet distance from an image captured by a camera. The air feeding unit includes a sheet suction unit that sucks the uppermost sheet that has been floated by the air blown on the stacked sheets, and a transport unit that transports the sheet suctioned by the sheet suction unit.
The adjusting unit measures the feed amount by which the uppermost sheet adsorbed by the sheet adsorbing section is superposed on the preceding sheet by the adsorption and conveyance of the uppermost sheet with respect to the preceding sheet. The feed amount measuring means is provided, and the feed amount is measured by the feed amount measuring means while changing the air flow rate of the fan provided in the air feeding means, and the feed amount is adjusted so that the feed amount becomes a predetermined value or less. The sheet feeding parameter management system according to claim 1, wherein a parameter is adjusted. The air feeding unit includes a sensor that detects a sheet conveyed by the conveying unit at a predetermined position on a sheet conveying path,
The feed amount measuring means is based on a paper feed start time when the conveyance is started by the conveyance unit from a state where the paper is adsorbed by the paper adsorption unit, and a paper detection time when the paper is detected by the sensor. 7. The paper feed parameter management system according to claim 6, wherein a paper feed time from the paper feed start time to the paper detection time is calculated, and the feed amount is calculated from the paper feed time. Each of the plurality of air feeding devices,
Detection means for detecting a paper setting error with respect to the paper feed tray or a side guide adjustment error for adjusting the length of the paper feed tray in the paper width direction;
By the detection means, a warning means for giving a warning when the paper setting error or the side guide adjustment error is detected,
The sheet feeding parameter management system according to claim 1, further comprising: The paper type information includes the surface property, basis weight, rigidity or size of the paper,
9. The paper type information acquisition means is a means for detecting paper type information from the paper to be fed or a means for acquiring the paper type information input by a user. Paper feed parameter management system described.   10. The sheet feeding parameter includes at least one of an air volume of a fan used for air blowing, an air volume of a fan used for suction, a drive time of a fan used for air blowing or suction, and a control timing for a fan used for air blowing or suction. The sheet feeding parameter management system according to any one of 1.

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