KR20240010867A - System for Generating Electronic Document Using Mobile Worksite - Google Patents

Abstract

The electronic documentation system according to the present invention includes a scanning module 11 for scanning the contents of a target document; a proofreading module 12 that generates meta information about the primary electronic document generated by the scanning and corrects errors in the image of the primary electronic document to generate a final electronic document; An electronic program unit 10 including an inspection module 13 that records predetermined inspection results for the final electronic document received from the proofreading module 12, and data generated by scanning the scan module 11. It includes an electronic document management unit 20 including a recognition engine module 32 that receives and recognizes information included in the document to generate the primary electronic document. And at least one of the electronic program unit 10 and the electronic document management unit 20 is provided on a movable workbench.

Description

System for Generating Electronic Document Using Mobile Worksite}

The present invention relates to a system that can perform electronic documentation using a mobile workplace. More specifically, the present invention relates to a system that can perform electronic documentation using a mobile workplace to meet the requirements stipulated by the Framework Act on Electronic Documents and Electronic Transactions (hereinafter referred to as the “Electronic Document Act”). It is about a system that can perform electronic documentation.

Converting paper documents to electronic documents for ease of storage is becoming common. Converting to an electronic document for personal use or in cases where reliability or integrity is not strictly required can be converted to an electronic document using a general scanner, but documents from public institutions or financial institutions have a high level of security. Reliability, integrity, and security requirements are required.

In line with such demands, the Electronic Documents Act and its subordinate notification, “Regulations on Preparation and Procedures for Electronic Documents,” stipulate requirements related to the identity, reliability, integrity, and readability of electronic documents, and electronic documents created in accordance with these requirements shall be It can be considered to meet the same requirements as paper documents, reliability, integrity, and readability.

According to the prior art, electronic document work is carried out in a fixed location (workplace), resulting in interference between electronic document workers and customer company executives and employees, use of double resources (scanners, multi-function printers, etc.), and additional costs and work time due to work inefficiency. A problem existed.

The purpose of the present invention is to provide a system that can perform electronic documentation work using a mobile workplace in order to solve the problems of the prior art.

The electronic documentation system according to the present invention includes a scanning module 11 for scanning the contents of a target document; a proofreading module 12 that generates meta information about the primary electronic document generated by the scanning and corrects errors in the image of the primary electronic document to generate a final electronic document; An electronic program unit 10 including an inspection module 13 that records predetermined inspection results for the final electronic document received from the proofreading module 12, and data generated by scanning the scan module 11. It includes an electronic document management unit 20 including a recognition engine module 32 that receives and recognizes information included in the document to generate the primary electronic document. And at least one of the electronic program unit 10 and the electronic document management unit 20 is provided on a movable workbench.

The image error corrected by the correction module 12 may be at least one of removal of a line existing at the border of the electronic document and correction of the tilt of the electronic document.

The scanning module 11 further performs a pre-inspection of the target document, and the pre-inspection may be an inspection of at least one of whether the target document is folded and wrinkled, whether the target document is bundled, and whether the target document is obscured.

The inspection results recorded in the inspection module 11 include inspection results for missing images of electronic documents; Test results for image duplication in electronic documents; Visual inspection results for resolution, saturation and density of electronic documents, and inspection results for readability; It may be at least one of an inspection result for whether the electronic document is slanted, folded, or has vertical lines.

The electronic document management unit 20 may further include a classification system management module 22 that manages a system for classifying electronic documents.

The classification system management module 22 is capable of managing an ontology-based classification system, where the number of occurrences of words appearing in a document is expressed as a vector, and the similarity between documents is based on the inner product between the vectors. It can be a system that judges and classifies.

The mobile workbench on which the electronic documentation system according to the present invention is installed includes a target document supply unit 150 that supplies target documents to the mobile workbench from the outside of the mobile workbench; a target document transfer unit 180 that transfers the target document inside a mobile worktable; a target document discharge unit 160 that discharges the digitized target document or its shredded materials to the outside of the mobile workbench; It includes a target document direction change unit 170 that changes the direction of the target document so that the digitized target document is transferred to the target document discharge unit 160.

The target document transfer unit 180 may be provided between the target document supply unit 150 and the target document discharge unit 160.

The target document direction change unit 170 may be provided between the target document supply unit 180 and the target document transfer unit 180 and between the target document transfer unit 180 and the target document discharge unit 160.

According to the present invention, the digitization of paper documents can be performed on a mobile workbench, thereby eliminating the space and time constraints required for the digitization of documents, and in a space separate from the space of the customer company that is the owner of the target document. The ability to digitize documents improves work efficiency, and the availability of mobile workstations can be expanded, replacing existing document digitization workstations that require fixed space, further enhancing the efficiency of space operation and reducing costs. It can provide an effect.

1 is a block diagram of an electronic documentation system according to an embodiment of the present invention.
Figure 2 is a flow chart of the document digitization process according to the present invention.
3 to 5 are block diagrams of an electronic documentation system according to another embodiment of the present invention.
Figure 6 is a plan view of a mobile workshop according to an embodiment of the present invention.

Encryption/decryption may be applied to the information (data) transmission/reception process performed in this specification as necessary, and expressions describing the information (data) transmission process in this specification and patent claims are all encryption/decryption even if not separately mentioned. It should be interpreted to include cases of decoding. In this specification, expressions of the form “transmitted (transmitted) from A to B” or “received by A from B” also include transmission (transmission) or reception with another medium in between, and directly from A to B. It does not only express what is transmitted (delivered) or received. In the description of the present invention, the order of each step should be understood as non-limiting unless the preceding step must be performed logically and temporally prior to the subsequent step. In other words, except for the above exceptional cases, even if the process described as a subsequent step is performed before the process described as a preceding step, the essence of the invention is not affected, and the scope of rights must also be defined regardless of the order of the steps. And in this specification, “A or B” is defined to mean not only selectively indicating either A or B, but also including both A and B. In addition, the term "included" in this specification has the meaning of including additional components in addition to the elements listed as included.

In this specification, “module”, “unit” or “unit” means a logical combination of general-purpose hardware and software that performs its function.

In this specification, only the minimum components necessary for description of the present invention are described, and components that are not related to the essence of the present invention are not mentioned. And it should not be interpreted in an exclusive sense that includes only the mentioned components, but should be interpreted in a non-exclusive sense that may also include other components that are not mentioned.

As used herein, “first,” “second,” or similar expressions are used to separately express the same or similar components or to distinguish the names of steps constituting the present invention, and are used in order. It does not mean that it is meaningful or plural.

The method according to the present invention can be performed by electronic computing devices such as computers, tablet PCs, mobile phones, portable computing devices, and stationary computing devices. Additionally, it should be understood that one or more methods or aspects of the present invention may be implemented by at least one processor. The processor may be installed in a computer, tablet PC, mobile device, portable computing device, etc. A memory configured to store computer program instructions may be installed in such a device so that a processor is specifically programmed to execute the program instructions stored in the program to execute one or more processes as described herein. In addition, it should be understood that the information and methods described in this specification can be executed by a computer, tablet PC, mobile device, portable computing device, etc. that includes one or more additional components and a processor. Additionally, the control logic may be implemented as a non-volatile computer-readable medium containing program instructions executable by a processor, controller/control unit, etc. Examples of computer readable media include, but are not limited to, ROM, RAM, CD-ROM, magnetic tape, floppy disk, flash drive, smart card, optical data storage device, etc. Additionally, the computer-readable recording medium may be distributed to computers connected to a network, and the computer-readable medium may be stored and executed in a distributed manner, for example, by a remote server or CAN (Controller Area Network).

In this specification, obtaining a predetermined value by performing an operation such as encryption or hashing on a specific value means not only the specific value but also a modified value of the specific value (for example, additionally calculating a predetermined value on the specific value or It is defined to include operations such as encryption or hashing on other values (calculated through a process such as changing the specific value according to a predetermined rule).

The exemplary embodiments described herein provide a general understanding of the principles of the structure, function, fabrication and use of the devices and methods disclosed herein. One or more such embodiments are depicted in the accompanying drawings. Those skilled in the art will understand that the devices and methods specifically described herein and shown in the accompanying drawings are non-limiting illustrative embodiments and that the scope of the present invention is defined by the claims. Features shown and described in connection with one example embodiment may also be combined with features of other embodiments. Such modifications or variations are intended to be included within the scope of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 shows a block diagram of an electronic documentation system 1 according to an embodiment of the present invention, and Figure 2 shows a flow chart of the document digitization process according to the present invention. Hereinafter, the present invention will be described with reference to FIGS. 1 and 2.

The electronic documentation system 1 includes an electronic program unit 10 and an electronic document management unit 20. Electronic documents created according to the present invention can be transmitted to the electronic document center 30 and stored. The electronic document center 30 is an organization that follows the requirements stipulated by the Electronic Document Act and stores electronic documents that meet the requirements stipulated by the Electronic Document Act.

According to one embodiment of the present invention, the electronic program unit 10 and the electronic document management unit 20 may be provided in a mobile workplace. The mobile workplace may be a vehicle, or it may be a movable workspace (eg, container, cart, etc.) connected to a vehicle.

In order to start document digitization according to the present invention, a request for digitization of the target document is received from the owner (customer company) of the target document (step 200).

Upon receiving this request, the type of document digitization processing is determined considering the type of target document, type of target document owner, and volume of target document (step 210). In other words, the type of processing is decided whether to use centralized work, distributed work, or whether to use a mobile workstation.

Then, authentication of digitization personnel is performed to determine whether the relevant workers are qualified to perform document digitization (step 220). Electronicization person authentication is performed by the electronicization person authentication unit 14.

The electronic program unit 10 includes a scan module 11, a calibration module 12, an inspection module 13, and an electronic user authentication module 14.

The scan module 11 is a module that scans paper documents, extracts integrity verification information, sets the scanning environment, and performs a preliminary inspection of documents to be digitized.

The integrity verification information may be, for example, a hash value for image data of an electronic document. When correcting the image of the first digital document created (compression, rotation, blemish removal, business card and brightness adjustment, resolution and color change, etc.), the hash value of the image of the digital document after correction is extracted and used as integrity verification information. You can.

Preliminary inspection of the document performed by the scanning module 11 includes, for example, whether there are folded or wrinkled parts in the document, whether the target document is clipped or bound, and whether part of the target document is covered by a post-it note, etc. , to check whether the target document contains sensitive personal or financial information.

If an abnormality is detected as a result of a preliminary inspection, corresponding measures can be taken. If there is a folded or wrinkled part, straighten the document. If it is clipped or bound, remove the clip and the ironed part. If a post-it, etc. is covering the target document, remove the post-it and scan the contents of the post-it as a separate page. , if personal or financial information exists, actions such as notifying the relevant person in charge can be taken.

When the scan module 11 scans in step 230, scan data corresponding to the target document is generated, and this data is transmitted to the recognition engine module 32 of the electronic document management unit 20, which will be described later, such as characters in the target document, etc. This is recognized.

The proofreading module 12 receives a primary electronic document in a state in which information included in the electronic document as described later has been recognized by the recognition engine module 32, and generates meta information of the primary electronic document, 1 Image quality is improved through proofreading of the electronic document to generate a final electronic document (step 250). Improving image quality includes tasks such as removing lines on document borders or correcting the tilt of the document.

The inspection module 13 stores the results of inspecting the content and quality of the final digitized document received from the proofreading module 12 (step 260). Inspection can be performed as a complete inspection or sample inspection.

The inspection can be performed by an electronic inspector, and the electronic inspector performs content inspection and quality inspection according to regulations on the electronic document created through scanning by the electronic creator, and the inspection results are stored in the inspection module 13. . It is desirable that the electronic version inspector be different from the electronic version creator.

<Content inspection>

go. Check the images of electronic documents and check for missing or duplicate images, etc.

me. If the test result is normal, it is judged as normal.

all. If the test result is an error, request a rescan or return to the correction step.

If the electronic inspection is performed asynchronously in a distributed manner, the inspection results and the date and time the electronic inspection was performed are recorded/stored.

<Quality inspection>

The electronics inspector checks the following items to confirm quality.

go. Whether electronic documents can be read with the naked eye, including resolution, saturation, and density.

me. Total readability

If an inspection program is not used, the electronic inspector performs quality inspection using the following methods and procedures.

go. The digital inspector checks the image of the digital document and inspects the quality (resolution, density, saturation, etc.) and shape (slant, folds, vertical lines, etc.)

me. If the test result is normal, it is judged normal.

all. Request a rescan if the test result is an error

When using an inspection program, the electronic inspector can perform quality inspection through the inspection program of the electronic system, and the methods and procedures are as follows.

go. Run the inspection program and log in

me. After automatically performing a quality inspection of all digitized documents using the method of comprehensive inspection in the electronic information system, a list of subjects that can be visually checked for quality is created as follows.

1）Severely tilted image

2）Folded image

3) Image with vertical lines

all. The electronic inspector checks the list of visual quality check targets, checks the image in question, and inspects the quality (resolution, density, saturation).

la. If the test result is normal, it is judged normal.

mind. Request a rescan if the test result is an error

The digitization person authentication module 14 performs the function of authenticating workers and work sessions who perform digitization of documents. In other words, the electronic personnel authentication module 14 performs worker login management, work session authentication management, work authority authentication management, and visual information correction.

Correction refers to editing within the scope that does not involve modification of the content and form in order to improve the readability of a digitized document. Visual information correction refers to editing in relation to the content and quality discovered during the digitization and inspection process of the scanned image. This refers to corrections made to improve readability.

The final digitized document generated after completing the inspection and correction of the inspection module 13 is transmitted to the digitized document management unit 20, and the document compression module 25 compresses the final digitized document (step 270), and is stored in the electronic document center ( 30). The electronic document center 30 creates a Session Initiation Protocol (SIP), receives the final digitized document from the digitized document management unit 20 (step 280), and stores it in the certified electronic document repository 35 (step 290 ).

The electronic document center 30 can electronically sign stored electronic documents and issue a time stamp.

The electronic document management unit 20 includes a session management module 21, a classification system management module 22, a process management module 23, a log management module 24, a document compression module 25, and a file A complete disposal module (26), an electronic person management module (27), an access control management module (28), a meta information management module (29), an integrity management module (31), and a recognition engine module (32). , includes a secure folder management module 33 and a program integrity verification and distribution management module 34.

The session management module 21 performs session management during document digitization. If multiple accesses are required, the session management module 21 can be configured in the form of session clustering and session storage separation and can perform session management accordingly.

The classification system management module 22 is a module that manages a classification system that classifies electronic documents. Generally, a classification system is adopted according to the requirements of the owner of the target document, but in other cases, an ontology-based classification system can be adopted. The ontology-based classification system according to the present invention can be classified based on the number of times a specific word appears in a document and the similarity measurement result according to the number of times.

Documents can be vectorized and expressed based on the number of times a specific word appears in the document, and in this case, the similarity between documents can be determined based on the inner product between document vectors. The dot product of a vector is also the product of the absolute value of each of the two vectors and the cosine of the angle formed by the two vectors. In particular, when the vector values of documents have different dimensions, calculation using the cosine value is advantageous.

The ontology-based classification according to the present invention will be described as an example below.

The number of times the words listed in the table above appear in electronic documents 1 to 4 is indicated by numbers. Based on the words shown in the table, the electronic document can be vectorized and expressed as follows.

Electronic document 1: (1,0,0,1,0,0,1,1,0,0,1,1,1,0)

Electronic document 2: (1,0,0,1,0,0,0,0,1,1,1,1,1,0)

Electronic document 3: (0,1,0,0,1,1,0,0,0,0,0,0,0,0)

Electronic document 4: (0,0,1,0,0,0,0,0,0,0,0,0,0,1)

After vectorization in this way, the vector inner product between each electronic document is calculated to determine the degree of similarity between the electronic documents and the electronic documents can be classified accordingly. The vector dot product of e-document 1 and e-document 2 is 5, and the dot product of e-document 1 and e-document 4 is 0, so the similarity between e-document 1 and e-document 2 is higher than the similarity between e-document 1 and e-document 4. The inner product value, which is the standard for classifying similar electronic documents, may be determined differently depending on the type of document.

The process management module 23 comprehensively controls the modules that generate, manage, control, and transmit electronic documents, and allows the system keeper to temporarily store and manage the electronic documents until they are transferred to the electronic document center 30. Make it possible to use the electronic document management department. Electronic documents temporarily stored before transfer can be copied to the business system of the owner of the target document only if they are to be used for normal work, and the process management module 23 performs this process.

The log management module 24 provides access information, work history information, work history information, forgery prevention and storage according to the standards of the target document owner (customer company), appliance equipment, and worm storage of those involved in document digitization work. Manage overall access control and history (log records, etc.).

The document compression module 25 compresses the final electronic document that has been inspected by the inspection module 13 according to a compression algorithm (eg, JPEG, G4, JPEG2000, JBIG, etc.).

The file complete disposal module 26 permanently deletes the electronic document and related files and folders so that they cannot be recovered in order to ensure that the final electronic document is transferred to the electronic document center 30 so that the document does not remain in the electronic document system. performs its function.

The digitization person management module 27 enables an electronic signature to be applied to the final digitization document by attaching the electronic signature of the custodian or the document digitization person at the end of the document digitization process. In this way, by implementing a digital signature on the final digitized document, the integrity and non-repudiation function of the final digitized document can be achieved.

The access control management module 28 performs the function of preventing changes to electronic documents through other external programs not included in the system according to the present invention. To this end, recording media such as USB connected to the server are controlled in real time, images are prevented from being leaked during document digitization work, and the existence and version of the original file are checked to verify application integrity. If the registered information does not match the information in the digitized document, that is, if the digitized document has been changed through correction (compression, rotation, blemish removal, contrast and brightness adjustment, resolution and color change, etc.), the digitization program unit is automatically Update.

To be more specific, when an electronic document is corrected, the image data area is damaged, so it is a process of extracting a hash value that is different from the hash value before correction and updating the electronic record to reflect this. This is to ensure the integrity of the electronic document. am.

The meta information management module 29 manages the attribute information and index information of the digitized document by converting them into meta attribute values such as the type of the target document owner (customer company), the type of the electronic document, and the time of digitization.

The integrity management module 31 is a module that manages the integrity of electronic documents. The server side verifies the integrity of the image by inserting a hash code generated based on the image file into the image file tag (e.g., TIFF tag). , On the client side, the integrity of the image can be verified based on the invisible watermark. Alternatively, the client side can also verify image integrity by inserting a hash code generated based on the image file into the image file tag.

The recognition engine module 32 receives data generated when the scan module 11 scans the target document, recognizes characters, etc. in the document to generate a primary electronic document, and performs OCR recognition, barcode recognition, and form (document It can be configured to enable various recognition such as (format) and ECC recognition. Such a recognition module can be implemented by applying various known technologies.

The recognition engine module 32 can use conventional recognition technology to solve the problem of incomplete recognition caused by shaking of the mobile workplace, for example, the technology disclosed in Patent No. 10-2149052.

The secure folder management module 33 is a module that manages files and folders required for document digitization and can encrypt/decrypt files and folders by applying an encryption algorithm. The encryption algorithm can be an international standard encryption algorithm such as SEED or 3DES.

The program integrity verification and distribution management module 34 verifies the integrity of the electronic program unit and manages the quality, distribution results, and distribution process of the electronic document.

The information collected and processed by each module of the electronic document management unit 20, i.e., electronic document history, document electronic work history, integrity verification information, electronic document, etc., is transferred to the database of the electronic document management unit 20 and stored in the database. It is recorded.

In the embodiment shown in FIG. 1, the electronic programming unit 10 and the electronic document management unit 20 are shown as being provided in one single mobile workplace, but only the electronic programming unit 10 is provided in the mobile workplace; The electronic document management unit 20 may be provided in a location other than a mobile workplace as shown in FIG. 3. In this embodiment, wired and wireless data communication can be implemented between the electronic program unit 10 and the electronic document management unit 20 of the mobile workplace.

According to another embodiment, as shown in FIG. 4, the electronic program unit 10 is provided not in a vehicle but in a simplified mobile equipment 110 (e.g., cart, wagon, etc.) and the electronic document management unit 20. may also be provided in a mobile workshop. In this case, the scan module 11, the calibration module 12, the inspection module 13, and the electronic person authentication unit 14 of the electronic program unit 10 are used by the mobile equipment 110 on which the electronic program unit 10 is installed. It can be implemented to perform a function and enable wired and wireless data communication between the electronic program unit 10 and the electronic document management unit 20 of the mobile workplace.

According to another embodiment of the present invention, as shown in FIG. 5, the electronic program unit 10 may be installed in a plurality of mobile workshops 100 or mobile equipment 110. According to the digitization program unit 10 installed in a plurality of mobile workplaces or mobile equipment, faster document digitization may be possible.

Figure 6 shows an example of a plan view of a mobile workshop 100 according to the present invention.

As shown in FIG. 6, the mobile workplace 100 according to the present invention includes a scanning workbench 120, a mobile generator 130, an inspection and calibration workbench 140, a target document supply unit 150, and a target document feeder 150. It includes a document ejection unit 160, a target document direction change unit 170, and a target document transfer unit 180. The target document supply unit 150, the target document discharge unit 160, and the target document transfer unit 180 may be configured as a conveyor belt. Although not shown in FIG. 6, the mobile workshop 100 may further include a shredding unit that shreds the digitized target document.

Documents to be digitized are supplied to the mobile workplace 100 through the target document supply unit 150. The supplied target document is scanned at the scanning workstation 120 and converted into an electronic document through the above-described process. The target document or its shredded material for which the digitization process has been completed may be discharged to the target document discharge unit 160.

The target document direction change unit 170 serves to change the direction of the target document on which work has been completed so that it is transferred to the target document discharge unit 160, and the target document transfer unit 180 facilitates the digitization of the target document. It serves to transport the target document to the work location so that progress can be made.

According to the present invention, the target document can be digitized quickly and flexibly by the digitization program unit provided in the mobile workplace, thereby enabling the target document to be digitized at a third party's location other than the target document owner's workspace, and also the target document The advantage is that there is no need to transport the product to a separately provided fixed workshop.

Although the present invention has been described above with reference to the accompanying drawings, the scope of the present invention is determined by the scope of the patent claims described later and should not be construed as being limited to the above-described embodiments and/or drawings. In addition, it should be clearly understood that improvements, changes and modifications of the invention described in the patent claims, which are obvious to those skilled in the art, are also included in the scope of rights of the present invention.

Claims (9)

In the electronic documentation system,
A scanning module 11 that scans the contents of the target document, and a proofreading module that generates meta information about the primary electronic document generated by the scanning and corrects errors in the image of the primary electronic document to generate a final electronic document. (12) and an electronic program unit 10 including an inspection module 13 in which predetermined inspection results for the final electronic document received from the proofreading module 12 are recorded;
An electronic document management unit 20 including a recognition engine module 32 that receives data generated by scanning by the scan module 11 and recognizes information contained in the document to generate the primary electronic document,
Includes,
At least one of the electronic program unit 10 and the electronic document management unit 20 is provided on a movable workbench,
Electronic documentation system.
In claim 1,
The image error corrected by the correction module 12 is at least one of removal of a line existing on the border of the electronic document and correction of the tilt of the electronic document.
Electronic documentation system.
In claim 1,
The scanning module 11 further performs a preliminary inspection of the target document, and the preliminary inspection is an inspection of at least one of whether the target document is folded and wrinkled, whether the target document is bundled, and whether the target document is obscured.
Electronic documentation system.
In claim 1,
The test results recorded in the test module 11 are:
Test results for missing images in electronic documents; Test results for image duplication in electronic documents; Visual inspection results for resolution, saturation and density of electronic documents, and inspection results for readability; and at least one of the test result values for slant, folding, and vertical lines in the electronic document,
Electronic documentation system.
In claim 1,
The electronic document management unit 20 further includes a classification system management module 22 that manages a system for classifying electronic documents.
Electronic documentation system.
In claim 5,
The classification system management module 22 manages the ontology-based classification system,
The classification system is,
A system that expresses the number of appearances of words in a document as a vector, and determines and classifies the similarity between documents based on the inner product between the vectors.
Electronic documentation system.
In the mobile workbench on which the electronic documentation system of claim 1 is installed,
a target document supply unit 150 that supplies target documents to the mobile worktable from the outside of the mobile worktable;
a target document transfer unit 180 that transfers the target document inside a mobile worktable;
a target document discharge unit 160 that discharges the digitized target document or its shredded materials to the outside of the mobile workbench;
Comprising a target document direction change unit 170 that changes the direction of the target document so that the digitized target document is transferred toward the target document discharge unit 160,
Mobile workbench.
In claim 7,
The target document transfer unit 180 is provided between the target document supply unit 150 and the target document discharge unit 160.
Mobile workbench.
In claim 8,
The target document direction change unit 170 is provided between the target document supply unit 180 and the target document transfer unit 180 and between the target document transfer unit 180 and the target document discharge unit 160.
Mobile workbench.