JP3874933B2 - Paper transport control system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates generally to image processing apparatuses having a function of conveying paper into apparatuses such as a copying apparatus, a facsimile apparatus, a scanner, and a printer, and more particularly to a paper conveyance control system of a paper conveyance apparatus in those image processing apparatuses.
[0002]
[Prior art]
In general, a paper transport control system of a paper transport device in an image processing apparatus such as a copying machine, a facsimile machine, a scanner, or a printer is used to accurately calculate the paper in order to obtain cooperation and harmony with the processing of other parts in the image processing apparatus. In order to control whether the paper is conveyed or to improve the processing speed of the image processing apparatus, how quickly the paper is conveyed is controlled. For example, Japanese Patent Laid-Open No. 6-16262 “Paper Conveyance Control Device and Method” achieves the above-described purpose of “how quickly paper is conveyed” or “how accurately paper is conveyed”. “Paper transport control device and control method” is shown.
By the way, in the paper transport control system of the paper transport device, as with other parts, cost reductions, efficiency improvements, changes to improve defects, new products with good performance, and new products (parts) with the same performance are cheap. Adoption and improved parts are constantly employed, and it is necessary to make changes to the paper conveyance control system of the paper conveyance device in order to cope with this.
In the paper transport control system of the conventional paper transport device described above, since the structure is not particularly adapted to the above-described change, the entire paper transport control system is reviewed every time a change is made. .
[0003]
[Problems to be solved by the invention]
However, in the conventional paper conveyance control system as described above, it is necessary to review the whole paper conveyance control system every time it is changed. Since each part of the paper conveyance control system is complicatedly related, the labor for the change is small. It is a great deal. In addition, by implementing the change, there was a disadvantage that the problem may occur up to the part where there was no problem in the past, or the change may be leaked even though the related part needs to be changed at the same time .
The present invention has been made to eliminate the above-mentioned conventional drawbacks, and requires fewer man-hours for the change, and even if a part of the paper transport control system is changed, the other parts are adversely affected. Therefore, an object of the present invention is to provide a paper transport control system with high reusability.
[0004]
[Means for Solving the Problems]
  In order to achieve the above-described object, the paper conveyance control system according to the first aspect of the present invention provides at least one conveyance route for a transfer material conveyed in an image processing apparatus capable of executing an image reading process or an image forming process. On the paper transport control system of the paper transport device having an actuator such as a roller for moving the transfer material and a sensor for confirming the passage of the paper,The transfer material transport method is planned based on the processing content determined by the system positioned above the paper transport control system.A transport planning subsystem;Based on the conveyance method planned by the conveyance planning subsystem, a conveyance route and a limited position are derived, and the transfer material is conveyed by controlling a conveyance mechanism.A transport execution subsystem;The transfer result of the transfer material executed by the transfer execution subsystem is verified.A transport verification subsystem;Whether or not the paper transport device can transport the transfer material.A device monitoring subsystem for monitoring,Each subsystem is configured as a separate subsystem that includes both software and hardware for each process.Since the paper conveyance control system is divided into a plurality of independent subsystems, it is possible to prevent the influence of changes in one subsystem from affecting other subsystems.
  According to a second aspect of the present invention, in the paper conveyance control system of the first aspect,The transport planning subsystem determines a plan for a paper transport route, determines a transport specification, and limits the selection and position of the paper transport route. For example, what processing is performed in a copier Depends on the host system, and only determines the route plan for how to transport the paper, in which the transport specification is determined, the route is selected, and the position is limited. That is, the control purpose (what to do) and the control method (how to do) are clearly separated.
  According to a third aspect of the present invention, there is provided the paper transport control system according to the first aspect.The transport verification subsystem verifies at least unreached jams and stagnant jams of the transfer material.For example, the control execution such as “rotate the roller to convey the paper to the stamping position” and “the roller for the time (or distance) required for the paper to reach the stamping position”. It is clearly separated from the control verification that the sensor at the stamp stamp position does not detect paper even though it is rotated.
  According to a fourth aspect of the present invention, in the paper conveyance control system according to the first aspect, the device monitoring subsystem is executed by the conveyance planning subsystem, the conveyance execution subsystem, and the conveyance verification subsystem. The paper conveyance device is monitored without being affected by the operation, and the control related to conveyance and the control related to the device are clearly separated.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on illustrated embodiments.
Note that the paper or transfer material in the present specification is a concept including all sheet materials capable of image transfer and printing.
FIG. 1 is a diagram showing an example of the overall configuration of a system environment in which an image processing apparatus having a paper conveyance control system of the present invention is used.
As shown in FIG. 1, this system environment includes a network 1 such as a local area network (LAN), a network 2 such as a public communication network or a dedicated communication network, and various devices connected to the network 1. A user environment 3, a printer 4 that is an output device to a paper medium in the user environment 3, a copier 5 that can read an image from a document in the user environment 3 and output the image to a paper medium, and the like. Connected to the network 2 and the scanner 6 for reading the image of the original document, the personal computer 7 for inputting the instruction of the operator in the user environment 3, displaying it on the display, and performing various arithmetic processes and storage processes A service center 8 equipped with the above-mentioned devices, and instructions of operators in the service center 8 are input and displayed on the display. And a PC9 and a personal computer for processing and storage processing.
In the user environment 3, the printer 4, the copier 5, the scanner 6, and the image input / output device such as a facsimile machine (not shown) are conventionally stand-alone individually connected to each one such as a personal computer or a workstation. It was often used by one-to-one connection, but in recent years, it has been shared and increased in efficiency by increasing the number of personal computers installed, or used to connect to a network environment due to the widespread use of LANs such as network 1 Methods are also increasing.
In addition, each image input / output device in the user environment 3 often receives a check of the operation status and usage status of the device periodically from the vendor on the rental, lease, or maintenance contract. The vendor provides a remote operation (remote) inspection / confirmation service regarding the operation status and usage status of each user's device by the PC 9 of the service center 8 via the network 2 such as a public communication line network.
[0006]
Next, the paper conveyance control system of the paper conveyance device of the present invention in the user environment 3 of FIG. 1 is used for an image input / output device (printer, copying machine, scanner, etc.). As an example of an apparatus in which the paper conveyance control system of the paper conveyance apparatus of the present invention is used, FIG. 2 shows the overall configuration of a copying machine which is one of image input / output devices.
As shown in FIG. 2, the copying machine 5 guides the ADF 51, which is an automatic document conveying device that conveys a document (paper document), reads the document by the document reading unit, and discharges it, and reads the document read to the developing unit. An optical unit 52, a developing unit 53 that performs development processing with light guided from the original, a manual paper feeding unit 54 that conveys a manual paper original, and temporary storage of paper and double-sided printing when performing double-sided printing. A double-sided tray 55 used for reversing, a paper tray 56 storing paper, a paper feed bank 57 capable of storing various types of paper, and a paper developed and fixed by the developing unit 53 are discharged. A discharge tray 58, and a sorter 59 for sorting each page when a plurality of copies of the same document are to be copied.
The paper transport control system of the paper transport device of the present invention relates to the ADF 51, the manual paper feed unit 54, the double-sided tray 55, the paper tray 56, the paper feed bank 57, the discharge tray 58, and the sorter 59 in FIG. This will be described in more detail with reference to a configuration diagram of an example of the ADF in FIG.
[0007]
As illustrated in FIG. 3, the ADF 51 includes a document table 511 on which a plurality of documents before reading can be placed, a paper feed guide plate 512 that guides the document to the transport route, and a calling roller 513 that draws the document from the document table 511. A feeding belt 514 that further conveys (feeds) the drawn original, a separation roller 515 that separates the original one by one, a first conveyance roller 516 that conveys the original to a position of a registration sensor 517 described later, and detects the original Then, the registration sensor 517 for waiting at the standby position, the reflection guide plate 518 for reflecting the light from the optical unit 52 and guiding the original to the reading position, the light from the optical unit 52 and the slit glass 519 for transmitting the reflected light. The second conveyance roller 520 that sends out the read original and the paper discharge roller 521 that discharges the original.
In FIG. 3, a document on a document table 511 is drawn by a calling roller 513, fed by a sheet feeding belt 514, separated into one sheet by a separation roller 515, and conveyed to a registration sensor position by a first conveyance roller. Wait at the standby position. Note that the position of the registration sensor and the standby position may be different from the case where both positions are the same depending on the layout of each type of copying machine.
[0008]
As in the example of the ADF 51 shown in FIG. 3, the transport mechanism of the paper transport device basically transports paper by rotating several rollers (rollers) arranged on the transport route by a motor (not shown). To do.
Specifically, the original is transported to the standby position by the calling roller 513, the paper feed belt 514, and the first transport roller 516, and when the copying machine 5 is processing the copy application, after waiting for a predetermined pulse, Alternatively, in the case of a scanner application, after a Read command is issued, a conveyance motor (not shown) is turned on by an arbitrary pulse, and reading and conveyance are performed by the first conveyance roller 516 and the second conveyance roller 520, and the discharge roller. The paper is discharged by 521.
A stepping motor is used as a conveyance motor (not shown) as power, and each roller and belt are operated. The power transmission to the calling roller, the paper feeding belt, and the separation roller is turned on / off by turning on / off a paper feeding clutch (not shown). When the paper feed clutch is OFF, the original paper and the roller are in contact with each other, but the roller is in a neutral state where no power is applied.
[0009]
Next, the paper transport control system in the paper transport device will be described with reference to a block diagram of an example of the entire control system of the image input / output device in FIG.
In FIG. 4, an image input / output device 60, which is a paper conveyance control system, uses a CPU 61 that controls the entire device. Under the control of the CPU 61, program codes, fonts, and other static data are used. ROM 62 which is a read-only storage device in which is stored, RAM 63 which is a read / write storage device used as a temporary storage location, and NVRAM 3 which is a RAM for storing nonvolatile data, An image data input / output unit that controls an operation panel and a panel control unit 4, which is an interface that can be input and displayed by an operator, and controls a scanner unit and a printing unit, and reads a paper document and prints on a transfer sheet A large amount of image data such as image data is stored with the scan / print engine and control unit 5 Or a storage device used as a storage location of the database, a disk driver 67, a communication control unit 7 connected to the network 1 such as Ethernet and enabling communication with an external device, a public line, and an external A modem 8 is connected to enable communication with other devices.
In addition, the network 1 maintains function information and management information necessary for an input / output device connected to the network, and establishes a connection between a client (here, a PC) and a server (here, an image input / output device). The broker 10, which is middleware having a CPU, ROM, RAM, communication control unit, and database, and a personal computer PC7 are connected. The broker 10 as middleware may be built in either the PC 7 or the image input / output device 60, and may be present in either one of the devices.
[0010]
Next, software incorporated in the ROM 62, NVRAM 64, and storage device 67 of the image input / output device 60 of FIG. 4 will be described with reference to FIG. 5 which is an example of a software configuration block diagram.
As shown in FIG. 5, the software incorporated in the image input / output device is roughly divided into a four-layer structure including an application layer 20, a kernel layer 21, a driver layer 22, and a hardware layer 23.
The application layer 20 is a layer (application layer) that forms applications such as copying, facsimile, and printer.
In the application layer 20, the operation manager 201 controls an operation panel attached to the copying machine, and performs button display, button operation notification, alert notification, and the like. The document manager 202 is a functional block that is central to an application that handles documents according to scenarios such as copying, faxing, and printing. The service manager 203 is a functional block that is commonly required for document handling, and manages and executes various services. The device manager 204 is a functional block that determines operations of physical devices such as a scanner, a plotter, and an image bus, and manages and executes various devices. A paper transport manager that controls the number of transported sheets is included in the managers such as the scanner and plotter in the device manager 204. The database manager 205 maintains and manages permanent data such as fonts, fixed forms, fax reception histories, device usage histories, and accounting data.
[0011]
The kernel layer 21 is normally incorporated as an OS kernel and abstracts various devices to provide services to applications. The application layer 20 operates by making system calls to the kernel layer 21. For example, the device manager 204 operates when a system call is made to the virtual machine 211.
The driver layer 22 is a collection of functional blocks that execute control for driving various types of hardware. A roller driver or a motor driver of the paper conveying device corresponds to the integrated copy driver 222, the blocking device driver 223, and the page device driver 224 of this layer.
The hardware layer 23 is a set of controllable resources existing in the copying machine. Actuators and sensors such as rollers and motors of the paper conveying device correspond to the scanner 231 and the plotter 232 of this layer.
The paper transport control system according to the present invention in the example of FIG. 5 includes a device manager 204 in the application layer 20 and a scanner 231 and a plotter 232 in the hardware layer 23, which are related to a paper transport device such as a scanner and a plotter. It consists of parts related to sensors for detecting position, passage / stop, etc.
In the above software, for example, in order to prevent the change of one part from affecting the other part, it is divided into subsystems including both software and hardware for each processing, It is necessary to make parts after processing. In the present invention, subsystems are created for each processing and each purpose.
[0012]
Next, the paper conveyance control system of the present invention will be described with reference to FIG. 6 which is an example of an object diagram based on the structure of the subsystem described above.
As shown in FIG. 6, the paper conveyance control system of the present invention is configured by four subsystems: a conveyance planning subsystem 30, a conveyance execution subsystem 31, a conveyance verification subsystem 32, and an apparatus monitoring subsystem 33.
The conveyance plan subsystem 30 conveys the paper according to the notification of the determination that the system positioned above the paper conveyance control system has determined what processing is to be performed in the copying machine. Responsible for planning what to do. Here, what kind of processing is performed in the copier depends on the host system, and only the route plan for how to transport the paper is determined. Among them, the transport specification is determined, and the route is determined. Select and limit the position.
Specifically, the transportation plan subsystem 30 determines the following plan.
1. During transport, a transport plan is determined for processing to be performed on the paper.
The above processing includes reading processing, writing processing, stamp stamping processing, and the like.
2. Decide whether to transport to read one side of the paper or to read both sides of the paper.
3. Decide whether to carry one side of the paper for writing or to carry both sides of the paper for writing.
The conveyance execution subsystem 31 derives a conveyance route plan and a limited position from the conveyance plan subsystem 30 and controls the conveyance mechanism to convey the document (paper).
According to the route plan, the conveyance mechanism basically conveys paper by rotating several rollers (rollers) arranged on the conveyance route by a motor or the like via a clutch.
Further, the transport mechanism is controlled so that the leading edge and the trailing edge of the document pass through the passage position or stop at the stop position by the limited position. Further, the distance meter knows the distance of the document being conveyed and causes the distance counter to count the distance from the document edge.
The conveyance verification subsystem 32 verifies conveyance by the conveyance execution system 31. The main verification is jam detection.
[0013]
In general, there are two types of jam detection: (1) unreached jam detection and (2) stagnant jam detection.
(1) The phenomenon of unreasonable jam is the starting point where the roller in contact with the leading edge of the document starts to rotate, or the document that has passed a monitoring point such as a sensor is subjected to some obstacle on the transport route and This phenomenon does not reach the sensor. FIG. 7 shows a detection method when the unreached jam occurs.
FIG. 7 shows the process from when the document (shaded portion) passes the sensor at the starting point or the monitoring point until it reaches the next sensor as the target position.
The starting point in FIG. 7 corresponds to the position where the calling roller 513 contacts the leading edge of the document in the description of FIG. 3, and the target position corresponds to the registration sensor 517.
Since the distance between the starting position or the monitoring point on the transport route and the target position is known in advance as described above, the moving distance until the original (original end) from the starting position reaches the target position, Alternatively, after counting the estimated movement distance (the distance driven by the roller or the rotation of the roller by the rotation of the roller or the motor) until the document that has passed a certain monitoring point reaches the target position, the sensor response of the destination Therefore, it is determined that the document has not reached the target position, and is detected as “unachieved jam”.
However, in actual conveyance, the movement does not occur at a completely estimated distance, and a slight error occurs. Therefore, this is realized by giving a distance obtained by adding an error to the movement distance estimated in advance. In addition, this error increases as the roller deteriorates.
(2) The phenomenon of stagnant jam is a phenomenon in which a moving document reaches a monitoring point such as a sensor but does not pass through it, or the actual document length when the document is transported twice. This is a phenomenon of “multifeed” that becomes longer. FIG. 8 shows a detection method when the stay jam occurs.
[0014]
FIG. 8 shows a process from when a leading edge of a document passes a certain monitoring point until a trailing edge of the same document passes the monitoring point.
The monitoring point in FIG. 8 corresponds to the registration sensor 517 in the description of FIG.
Here, if the size of the document is known in advance, the distance between the leading edge and the trailing edge of the document is known. Therefore, after counting the estimated movement distance (the distance driven by the roller or motor rotation of the roller circumference) from the passage of the leading edge of the document to the passage of the trailing edge, the sensor reaction at the monitoring point If there is no error, it is determined that the trailing edge of the document does not pass through the monitoring point, and “stay jam” is detected.
In this case as well, it is necessary to provide an estimated movement distance considering the movement distance error, and the error increases as the roller deteriorates.
The device monitoring subsystem 33 monitors the paper transport device.
In general, it is monitored whether or not the paper conveying device of the copying machine can carry. This monitoring must be monitored no matter what the system is.
Taking the paper transport device of ADF51 in FIG. 3 as an example, a copying machine (1) with the cover covering the transport path open (cover open), or (2) the transport device itself being lifted (lift up) This is to monitor that the paper conveyance device) is in a state of hindering the conveyance of the original.
[0015]
Next, each operation at the time of normal operation of each of the above subsystems, at the time of conveyance abnormality, and at the time of apparatus abnormality will be described with reference to FIGS.
FIG. 9 is an operation diagram showing in what sequence the four subsystems of transfer plan, transfer execution, transfer verification, and apparatus monitoring operate during normal operation.
(1) The device monitoring subsystem notifies the transfer execution subsystem that the device is normal.
(2) The transfer execution subsystem refers to the transfer plan when the device is normal, and guides the transfer execution plan.
(3) The transfer execution subsystem notifies the transfer verification that the transfer is to be executed, and proceeds to execution.
(4) The transfer operation of the transfer execution subsystem ends and the system stops.
FIG. 10 is an operation diagram showing the sequence in which the four subsystems of transfer planning, transfer execution, transfer verification, and apparatus monitoring operate when transfer is abnormal.
(1) The device monitoring subsystem notifies the transfer execution subsystem that the device is normal.
[0016]
(2) The transfer execution subsystem refers to the transfer plan when the device is normal, and guides the transfer execution plan.
(3) The transfer execution subsystem notifies the transfer verification that the transfer is to be executed, and proceeds to execution.
(4) The transport verification subsystem notifies the transport execution subsystem that an abnormality has occurred in the transport operation.
(5) The transfer execution subsystem stops the transfer operation.
(6) The transport execution subsystem performs post-processing for abnormal operations.
[0017]
FIG. 11 is an operation diagram showing the sequence in which the four subsystems of transfer plan, transfer execution, transfer verification, and apparatus monitoring operate when the apparatus is abnormal.
(1) The device monitoring subsystem notifies the transfer execution subsystem that the device is normal.
(2) The transfer execution subsystem notifies the transfer verification that the transfer is to be executed, and proceeds to execution.
(3) The device monitoring subsystem notifies the transfer execution subsystem that an abnormality has occurred in the device.
(4) The transfer execution subsystem stops the transfer operation.
(5) The transport execution subsystem performs post-processing for abnormal operations.
Using the above four subsystem configurations, for example, when the transport planning subsystem makes a transport plan of “perform stamp stamping”, the transport execution subsystem transports the paper to the stamp stamp position. The stamp stamping process is performed.
Here, if the layout of the stamp stamp position is changed, the entire control specification for transporting the paper to the stamp stamp position is changed in the conventional configuration. Concealed in the transport execution subsystem. Therefore, there is no influence on the plan of “stamping processing” of the transport planning subsystem.
As described above, the internal structure of the paper conveyance control system is divided into four subsystems of “conveyance plan”, “conveyance execution”, “conveyance verification”, and “apparatus monitoring”. It is possible to prevent the effect of the change in in other subsystems.
[0018]
【The invention's effect】
  As described above, according to the first aspect of the present invention, the inside of each subsystem can be changed without changing the interface between the subsystems, so that it is possible to construct a paper conveyance control system that is resistant to specification changes. The reusability and maintainability of the paper transport control system are improved.
  According to the second aspect of the present invention, since the change in the paper conveyance path is hidden in the conveyance planning subsystem, it is not necessary to recreate all the systems, that is, subsystems other than the conveyance planning subsystem can be reused as they are. It becomes.
  According to the third aspect of the present invention, as described in the above “problem to be solved by the invention”, if control execution and control verification are separated, an actuator such as a roller and a motor, and a transport mechanism including a sensor are included. Even if the control verification changes due to accuracy, the changed part is hidden in the control verification part, i.e., the transport verification subsystem, so it is not necessary to recreate all the systems, and the control execution part, i.e., the transport execution subsystem is re- It can be used.
  According to the present invention of claim 4, as described in the above “problem to be solved by the invention”, if the control related to the conveyance and the control related to the apparatus are separated, each change part is concealed by itself. It becomes possible.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating an example of an overall configuration of a system environment in which an image processing apparatus having a paper conveyance control system of the present invention is used.
FIG. 2 is a diagram illustrating an overall configuration of a copying machine as one of image input / output devices as an example of an apparatus in which a paper transport control system of a paper transport apparatus according to the present invention is used.
FIG. 3 is a diagram illustrating a configuration of an example of an ADF.
FIG. 4 is a block diagram showing an example of the entire control system of the image input / output device.
FIG. 5 is a configuration block diagram of an example of software.
FIG. 6 is an object diagram showing an example of the structure of a subsystem in the paper transport control system (paper transport manager) of the present invention.
FIG. 7 is a diagram illustrating a detection method when an unreached jam occurs.
FIG. 8 is a diagram illustrating a detection method when a stay jam occurs.
FIG. 9 is an operation diagram showing in what sequence the four subsystems of transfer planning, transfer execution, transfer verification, and apparatus monitoring operate during normal operation.
FIG. 10 is an operation diagram showing in what sequence the four subsystems of transfer planning, transfer execution, transfer verification, and apparatus monitoring operate when transfer is abnormal.
FIG. 11 is an operation diagram showing what sequence the four subsystems of transfer planning, transfer execution, transfer verification, and apparatus monitoring operate when the apparatus is abnormal.
[Explanation of symbols]
1, 2 ... Network, 3 ... User environment, 4 ... Printer, 5 ... Copier, 6 ... Scanner, 7, 9 ... PC (Personal Computer), 8 ... Service center, 10 ... Broker, 20 ... Application part, 21 ... Kernel part, 22 ... Driver part, 23 ... Hardware part, 30 ... Transport planning subsystem, 31 ...・ Transport execution subsystem, 32... Transport verification subsystem, 33 ..Device monitoring subsystem, 51... ADF, 52 ..Optical unit, 53 .. Development unit, 54. Paper section, 55... Double-sided tray, 56... Paper feed tray, 57... Paper feed bank, 58. ... CPU, 62 ... ROM 63... RAM, 64... NVRAM, 65... Operation panel and panel controller, 66... Scan / print engine and engine controller, 67... Storage device and disk driver, 68. Communication control unit 69 ... modem 201 ... operation manager 202 ... document manager 203 ... service manager 204 ... device manager 205 ... database manager 211 ... virtual Machine, 222 ... Integral copy driver, 223 ... Blocking device driver, 224 ... Page device driver, 231 ... Scanner, 232 ... Plotter, 511 ... Document table, 512 ... Paper feed guide plate, 513... Calling roller, 514. Separation roller, 516 ... first conveying roller, 517 ... registration sensor, 518 ... reflective guide plate, 519 ... slit glass, 520 ... second transport roller, 521 ... sheet discharge roller

Claims (4)

To confirm the passage of an actuator such as a roller for moving the transfer material and the paper on at least one conveyance route of the transfer material conveyed in the image processing apparatus capable of executing image reading processing or image formation processing In the paper transport control system of the paper transport device having the sensor,
A transport planning subsystem that plans the transfer material transport method based on the processing content determined by the system positioned above the paper transport control system ;
A transport execution subsystem for deriving a transport route and a limited position based on a transport method planned by the transport planning subsystem and controlling the transport mechanism to transport the transfer material ; and
A transport verification subsystem that verifies the transport result of the transfer material executed by the transport execution subsystem ;
An apparatus monitoring subsystem for monitoring whether the paper conveying apparatus is capable of conveying the transfer material ;
Each of the subsystems is configured as a separate subsystem that includes both software and hardware for each process . 2. The paper transport control system according to claim 1, wherein the transport planning subsystem determines a plan for a paper transport route, determines a transport specification, and limits selection and position of the paper transport route. . The paper conveyance control system according to claim 1, wherein the conveyance verification subsystem verifies at least an unreached jam and a stay jam of the transfer material .   The apparatus monitoring subsystem monitors the paper conveyance apparatus without being affected by operations performed by the conveyance planning subsystem, the conveyance execution subsystem, and the conveyance verification subsystem. Item 2. The paper conveyance control system according to Item 1.

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