JP6451682B2 - Image forming apparatus and image forming program - Google Patents

Description

  The present invention relates to an image forming apparatus and an image forming program suitable for maintaining confidentiality in image reading and copying.

  Conventionally, for example, when a user is cautioned about handling a printed material, the printed material may be provided with a visible watermark such as a logo-type mark or a character for handling caution. In general, the visible watermark is often printed thinly enough not to interfere with the discrimination of the printed image.

  By the way, even if a visible watermark is attached to the printed material, it is possible to copy the printed material. For this reason, it is necessary to give restrictions to copying or the like for highly confidential printed matter from the viewpoint of security of information leakage.

  In this case, it is conceivable to apply a technique using the fluorescent ink disclosed in Patent Document 1. That is, in Patent Document 1, document information including phosphor marking information specifying a document reading region is read by using normal light from an illumination lamp and near ultraviolet light from a near ultraviolet light illumination lamp, thereby reading a document reading region. Has proposed an image recognition apparatus that reduces false detection of markings that specify the.

  Here, when the information of the phosphor marking is read, it is considered that the security of information leakage with respect to a highly confidential printed matter can be improved by restricting the printed matter from being copied.

JP 2009-021979 A

  As described above, when the technique using the fluorescent ink disclosed in Patent Document 1 is applied, it is considered that the security of information leakage with respect to highly confidential printed matter is enhanced.

  However, if the information on the phosphor marking is read, it is restricted that the printed material is not copied. Even if the user has authority to handle highly confidential printed material, There is a problem that copying is not possible.

  The present invention has been made in view of such a situation, and an object thereof is to provide an image forming apparatus and an image forming program capable of solving the above problems.

The image forming apparatus of the present invention includes a panel unit, a scanner unit that reads an image, a UV light that emits fluorescent information, an authentication management unit that manages a security code,
An image processing unit that performs image processing on an image read by irradiation of visible light by the scanner unit and detection of fluorescence information included in the image, and the image processing unit detects the fluorescence information The display prompts the panel unit to input the security code, and the authentication management unit confirms that the security code input via the panel unit matches the managed security code. A system control unit that executes processing associated with the reading operation of the scanner unit and a printer unit that performs printing only when the processing associated with the reading operation of the scanner unit is performed. The scanner unit synthesizes fluorescence information with the image read by irradiating the visible light, and the printer unit Wherein the printing the image.
An image forming apparatus according to the present invention includes a panel unit, a scanner unit that reads an image, a UV light that emits fluorescent information including authentication information, an authentication management unit that manages the authentication information necessary for login, and the scanner unit An image processing unit that performs image processing on an image read by irradiating visible light and detection of fluorescence information included in the image, an image processing unit that detects optical information, and the authentication management A system control unit that executes a process associated with a reading operation of the scanner unit only when the unit confirms a match between the authentication information included in the detected fluorescence information and the managed authentication information ; and a printer unit that performs, when the image processing unit determines that the information includes authentication information in the fluorescence information, performs processing in response to a read operation of the scanner unit The image processing unit combines a specific watermark with the image read by the scanner unit, the printer unit prints the combined image, and the image processing unit includes authentication information in the fluorescence information. If the image processing unit performs processing associated with the reading operation of the scanner unit, the image processing unit synthesizes fluorescence information with the image read by irradiating the visible light with the scanner unit, The printer unit prints the synthesized image .
The image forming program of the present invention includes a step of reading an image by a scanner unit, a step of emitting fluorescent information by UV light, a step of managing a security code by an authentication management unit, and an image processing unit. The image processing unit detects the fluorescence information by a step of performing image processing on the image read by the unit irradiating visible light and detecting fluorescence information included in the image, and a system control unit. In this case, the content prompting the panel unit to input the security code is displayed, and the authentication management unit confirms the match between the security code input via the panel unit and the managed security code. only if, a step of executing processing in response to a read operation of the scanner unit, printer unit And a step of performing printing is executed on a computer for controlling an image forming apparatus, when performing processing in response to a read operation of the scanner unit, wherein the image processing unit, read by the scanner unit irradiates the visible light Fluorescence information is synthesized with the printed image, and the printer unit prints the synthesized image .
The image forming program of the present invention includes a step of reading an image by a scanner unit, a step of emitting fluorescent information including authentication information by a UV light, and a step of managing the authentication information necessary at the time of login by an authentication management unit. And a step of performing image processing on an image read by the scanner unit by irradiating visible light and detecting fluorescence information included in the image by an image processing unit, and the authentication by a system control unit. A process in which the management unit executes a process associated with the reading operation of the scanner unit only when the authentication information included in the detected fluorescence information matches the authentication information managed, and the printer unit; Accordingly, a step of performing printing is executed on a computer for controlling an image forming apparatus, said image processing unit is the authentication information to the fluorescence information If the image processing unit performs processing associated with the reading operation of the scanner unit, the image processing unit combines a specific watermark with the image read by the scanner unit, and the printer unit combines the image. When the image processing unit prints the image and the image processing unit determines that the authentication information is not included in the fluorescence information, the image processing unit Fluorescent information is synthesized with an image read by irradiating the visible light, and the printer unit prints the synthesized image .
In the image forming apparatus and the image forming program of the present invention, the system control unit prompts the panel unit to input a security code when the image processing unit detects fluorescent information included in the image read by the scanner unit. Is displayed, and the process associated with the reading operation of the scanner unit is executed only when the authentication management unit confirms that the security code input via the panel unit matches the managed security code.
Thereby, the user who has the authority of handling a highly confidential printed matter can be identified by giving fluorescent information to the highly confidential printed matter.

  According to the image forming apparatus and the image forming program of the present invention, it is possible to identify a user who has the authority to handle highly confidential printed matter, so that the security of information leakage with respect to highly confidential printed matter is lowered. Therefore, only a user who has the authority to handle printed matter with high confidentiality can execute processing associated with the reading operation of the scanner unit.

It is a figure for demonstrating one Embodiment of the image forming system of this invention. FIG. 2 is a diagram illustrating an example of an internal configuration of the MFP in FIG. 1. FIG. 3A illustrates an example of a sheet read by the scanner unit of FIG. 2, FIG. 3A illustrates a sheet with a watermark and fluorescent information, and FIG. 3B illustrates a watermark and a user ID. It is a figure which shows the paper to which the fluorescence information containing is attached | subjected. 3 is a flowchart for explaining an image forming method by the MFP of FIG. 1.

  Hereinafter, an image forming apparatus according to an embodiment of the present invention will be described with reference to FIGS. An example of the image forming apparatus in the following description is, for example, an MFP (Multifunction Peripheral) which is a complex peripheral device equipped with a print function, a copy function, a FAX function, a data transmission / reception function via a network, and the like. Shall.

  First, as illustrated in FIG. 1, the MFP 100 is connected to a network 300 such as a LAN (Local Area Network). Although FIG. 1 shows a case where a plurality of MFPs 100 are connected to the network 300, one MFP 100 may be connected to the network 300.

  The MFP 100 is connected to user terminals 200a and 200b such as a PC (Personal Computer). The user terminal 200a is used by, for example, a system administrator. The user terminal 200b is used by employees. Note that the MFP 100 in this embodiment can also perform private printing. That is, for example, a print job is registered in advance with any of the MFPs 100 from the user terminals 200a and 200b using a user ID and password that are authentication information, and an input of the user ID and password registered on the MFP 100 side is accepted. When the authentication necessary for the login process is performed by comparing the input user ID and password with the registered user ID and password, the printing process of the selected print job is executed. In addition, in the registration and authentication of a print job, only a password may be input.

  Next, an example of the configuration of the MFP 100 will be described with reference to FIG. The MFP 100 includes a control unit 110 that controls operations of the scanner unit 101, UV (Ultra Violet) light 102, printer unit 103, FAX unit 104, I / F (interface) 105, panel unit 106, and HDD 107.

  The scanner unit 101 is read by an image sensor (not shown) (At this time, the paper 400 is irradiated with visible light from a visible light lamp such as an LED (Light Emitting Diode) lamp (not shown)). This is a device that converts the above image into digital image data and inputs it to the control unit 110. In addition, when a later-described watermark 401 is added to the paper 400, the scanner unit 101 converts an image of the watermark 401 into digital image data and inputs the digital image data to the control unit 110. In addition, when fluorescent information 402 (described later) is attached to the paper 400, the scanner unit 101 converts an image of the fluorescent information 402 emitted by irradiation of ultraviolet rays (ultraviolet light) by the UV light 102 into digital image data. , Input to the control unit 110. The UV light 102 moves in synchronization with the reading operation of the image sensor of the scanner unit 101 and irradiates the sheet 400 with ultraviolet rays. Note that the UV light 102 may be provided integrally with the image sensor of the scanner unit 101 or may be separate from the image sensor of the scanner unit 101.

  The printer unit 103 is a device that prints an image on a sheet (not shown) based on print data output from the control unit 110. The FAX unit 104 is a device that transmits data output from the control unit 110 to a counterpart facsimile via a telephone line, and receives data from the counterpart facsimile and inputs the data to the control unit 110.

  The I / F 105 is responsible for communication with other MFPs 100 and user terminals 200a and 200b via the network 300. Note that the I / F 105 may be responsible for communication with a content server, a web server, or the like (not shown). The panel unit 106 is a device such as a touch panel that performs a print function, a copy function, a FAX function, a data transmission / reception function via a network, and various settings. In addition, the panel unit 106 displays contents prompting the user to input a user ID and a password that are authentication information necessary for the login process. Although details will be described later, the panel unit 106 displays contents prompting the user to input a security code different from the authentication information.

  The HDD 107 is a storage device that stores application programs for providing various functions of the MFP 100. Further, the HDD 107 has a user box for storing a print job registered from the user terminals 200a and 200b, for example. Note that an image forming program described later is one of application programs.

  Control unit 110 is a processor that controls the overall operation of MFP 100 by executing an application program, an image forming program, a control program, and the like. The control unit 110 includes a scanner control unit 111, a UV light control unit 112, a printer control unit 113, a FAX (Facsimile) control unit 114, a communication control unit 115, a RAM (Random Access Memory) 116, and a ROM (Read-Only Memory) 117. An image processing unit 118, an authentication management unit 119, a panel operation control unit 120, an HDD control unit 121, and a system control unit 122. These are connected to the data bus 123.

  The scanner control unit 111 controls the reading operation of the scanner unit 101. The UV light control unit 112 controls the ultraviolet light irradiation operation of the UV light 102. The printer control unit 113 controls the printing operation of the printer unit 103. The FAX control unit 114 controls data transmission / reception operations by the FAX unit 104. The communication control unit 115 controls transmission / reception of data and the like via the network 300 via the I / F 105. The RAM 116 is a work memory for executing a program. The RAM 116 also stores print data that has been subjected to image processing by the image processing unit 118. The ROM 117 stores a control program for checking the operation of each unit.

  The image processing unit 118 performs image processing (rasterization) on the image data read by the scanner unit 101. The image processing unit 118 performs image processing (rasterization) on a print job registered in the user box of the HDD 107. Note that the system control unit 122 temporarily stores the print data image-processed by the image processing unit 118 in the RAM 116. In addition, the image processing unit 118 detects the fluorescence information 402 from the difference in luminance of an image on a sheet 400 (described later) read by the scanner unit 101 and notifies the system control unit 122 of it. Incidentally, since the fluorescence information 402 has a higher brightness than the printed characters and the watermark 401, identification is easy. It should be noted that a certain level may be set in advance for identifying whether or not the fluorescence information 402 is present. In this case, the image processing unit 118 can identify the fluorescence information 402 when the luminance of the image read by the scanner unit 101 exceeds a certain level. Here, the “certain level” may be the luminance of the ground of the paper 400. This is to prevent erroneous recognition of the brightness of the background of the paper 400 as the fluorescent information 402 because the paper may contain a fluorescent agent.

  The authentication management unit 119 manages registered authentication information and security codes. Also, the authentication management unit 119 checks whether or not the authentication information input via the panel unit 106 matches the registered authentication information at the time of login. In addition, the authentication management unit 119 checks whether the security code input via the panel unit 106 matches the registered security code when copying or reading the paper 400. Here, the authentication information includes, for example, a user ID and a password used when registering a print job in the user box of the HDD 107. Note that the authentication information may be only a password. Further, the security code can be known only by a user who has the authority to handle highly confidential printed matter, and is associated with authentication information. The security code may be issued by a system administrator, for example. In this case, the system administrator may issue a security code for each highly confidential printed matter, or may issue it to a user who has authority to handle highly confidential printed matter.

  The panel operation control unit 120 controls the display operation of the panel unit 106. Further, the panel operation control unit 120 accepts the start of printing, copying, FAX, data transmission / reception via the network 300, input of authentication information, input of a security code, and the like via the panel unit 106. The HDD control unit 121 controls reading and writing of data with respect to the HDD 107.

  The system control unit 122 controls the cooperative operation of each unit. Further, the system control unit 122 causes the panel operation control unit 120 to accept an input of a security code when an image read by the scanner unit 101 includes fluorescent information 402 described later.

  Next, an example of a sheet read by the image sensor of the scanner unit 101 will be described with reference to FIG. First, although not shown in the figure, the paper 400 shown in FIG. 3A is printed with characters and images based on the print data. In addition, a watermark 401 and fluorescent information 402 are attached to the sheet 400. The watermark 401 is represented by, for example, characters that are classified as confidential documents, and is printed as thin as not interfering with the discrimination of characters and images based on print data. The watermark 401 is not limited to characters but may be a logo mark. The fluorescent information 402 is expressed by, for example, characters that are classified as confidential documents, and is printed using fluorescent ink. The fluorescent information 402 is not limited to characters but may be a logo mark. The fluorescence information 402 is not visible with normal light, but emits light when the UV light 102 is irradiated with ultraviolet rays. Further, the application position of the watermark 401 and / or the fluorescence information 402 is not particularly limited. That is, it may be the four corners of the paper 400, and may be the left and right and up and down of the paper 400. Further, the size of the watermark 401 and / or the fluorescence information 402 is not particularly limited. In particular, the fluorescence information 402 may be of a size that allows confirmation of light emission by the UV light 102.

  Further, as shown in FIG. 3B, the fluorescence information 402 may include authentication information indicating a user ID necessary for login. Here, the user ID included in the fluorescent information 402 is authentication information of a user who has the authority to handle highly confidential printed matter. As described above, by including the user ID in the fluorescence information 402, when it matches the user ID of the authentication information received in the login process, the security code input process can be omitted. In this case, the application position and size of the watermark 401 and / or the fluorescence information 402 are not particularly limited as described above. However, the fluorescence information 402 may be of a size that allows the user ID to be confirmed.

  Next, an image forming method of the MFP 100 will be described with reference to FIG. In the following description, it is assumed that a copy of the sheet 400 is set.

(Step S101)
First, the system control unit 122 determines whether the login process has been completed. In this case, the system control unit 122 completes the login process unless the authentication management unit 119 confirms that the user ID and password input via the panel unit 106 match the authentication information already managed. It is determined that it is not present (step S101: No).
On the other hand, if the system control unit 122 confirms that the user ID and password input by the authentication management unit 119 via the panel unit 106 match the authentication information already managed, the login process is completed. (Step S101: Yes), the process proceeds to Step S102.
If the authentication management unit 119 confirms that the user ID and password input via the panel unit 106 do not match the authentication information already managed, the system control unit 122 does not match the panel unit 106. An error may be displayed.

(Step S102)
The system control unit 122 determines whether copying has been set.
In this case, the system control unit 122 determines that the copy is not set if there is no notification from the panel operation control unit 120 via the panel unit 106 that the copy is set (step S102: No).
On the other hand, the system control unit 122 determines that the copy has been set if there is a notification from the panel operation control unit 120 that the copy has been set via the panel unit 106 (step S102: Yes). The process proceeds to step S103.

(Step S103)
The system control unit 122 determines whether the fluorescence information 402 has been detected.
In this case, the system control unit 122 instructs the scanner control unit 111 to irradiate the sheet 400 with ultraviolet rays and read the fluorescence information 402 of the sheet 400 by the scanner unit 101. The system control unit 122 determines that the fluorescence information 402 is not detected if there is no notification from the image processing unit 118 indicating that the fluorescence information 402 has been detected (step S103: No), and proceeds to step S104.
On the other hand, the system control unit 122 determines that the fluorescence information 402 has been detected if there is a notification from the image processing unit 118 indicating that the fluorescence information 402 has been detected (step S103: Yes), and proceeds to step S105. To do.

(Step S104)
The system control unit 122 executes copy processing.
In this case, the system control unit 122 instructs the scanner control unit 111 to irradiate the sheet 400 with visible light and to read an image on the sheet 400. In addition, the system control unit 122 instructs the image processing unit 118 to perform image processing on the image read by the scanner unit 101. In addition, the system control unit 122 instructs the printer control unit 113 to print based on the print data processed by the image processing unit 118 by the printer unit 103.

(Step S105)
The system control unit 122 causes the panel operation control unit 120 to accept a security code.
In this case, the system control unit 122 instructs the panel operation control unit 120 to display content that prompts the panel unit 106 to input a security code.

(Step S106)
The system control unit 122 determines whether the security code has been authenticated.
In this case, the system control unit 122 determines that the authentication cannot be performed without a notification from the authentication management unit 119 indicating a match with the registered security code (step S106: No), and proceeds to step S107.
On the other hand, the system control unit 122 determines that the authentication is successful if there is a notification from the authentication management unit 119 indicating a match with the registered security code (step S106: Yes), and proceeds to step S108.

(Step S107)
The system control unit 122 restricts copy processing.
In this case, the system control unit 122 does not issue an instruction to the scanner control unit 111, the image processing unit 118, and the printer control unit 113, and the panel operation control unit 120 cannot perform copy processing on the panel unit 106. An error display indicating that

(Step S108)
The system control unit 122 executes copy processing.
In this case, the system control unit 122 instructs the scanner control unit 111 to irradiate the sheet 400 with visible light and to read an image on the sheet 400. In addition, the system control unit 122 instructs the image processing unit 118 to perform image processing on the image read by the scanner unit 101. In addition, the system control unit 122 instructs the printer control unit 113 to print based on the print data processed by the image processing unit 118 by the printer unit 103.

(Step S109)
The system control unit 122 determines whether the copy process is completed.
In this case, the system control unit 122 notifies the end of image reading from the scanner control unit 111, the notification indicating the end of image processing from the image processing unit 118, and the end of printing from the printer control unit 113. If there is no notification to indicate, it is determined that the copy process has not been completed (step S109: No).
On the other hand, the system control unit 122 notifies the end of image reading from the scanner control unit 111, the notification indicating the end of image processing from the image processing unit 118, and the end of printing from the printer control unit 113. Is received, it is determined that the copy process has been completed (step S109: Yes), and the process ends.

  As described above, in the present embodiment, when the image processing unit 118 detects the fluorescence information 402 included in the image read by the scanner unit 101 by the system control unit 122, the security code is input to the panel unit 106. Only when the authentication management unit 119 confirms that the security code input via the panel unit 106 matches the managed security code, the reading operation of the scanner unit 101 is executed. Thereby, by giving the fluorescent information 402 to a highly confidential printed matter, it is possible to identify a user who has the authority to handle the highly confidential printed matter, and security of information leakage to the highly confidential printed matter. Only the user who has the authority to handle highly confidential printed material can perform the process associated with the reading operation of the scanner unit without lowering the image quality.

  In this embodiment, the authentication control unit 119 uses the user ID (authentication information) included in the fluorescence information 402 detected by the image processing unit 118 and the user managed by the authentication management unit 119 by the system control unit 122. Only when the coincidence with the ID (authentication information) is confirmed, the reading operation of the scanner unit 101 is executed. In this case, only when the user ID of the authentication information received in the login process matches the user ID included in the fluorescence information 402 detected by the image processing unit 118, the security code input process is omitted and the scanner unit is omitted. Processing associated with the reading operation 101 can be executed.

  If fluorescent information 402 including a user ID is detected in step S103 of FIG. 4, the user ID included in the detected fluorescent information 402 may be used in place of the registered security code in step S106. . Here, when the image processing unit 118 detects a character string indicating “user ID” in the fluorescence information 402 (“user ID” in the example of FIG. 3B), the user ID is included in the fluorescence information 402. Judge that

  In addition, the watermark 401 does not have to be attached to the paper 400 shown in FIG. In this case, the fluorescence information 402 can be printed as a watermark. Specifically, in step 103 in FIG. 4, the system control unit 122 instructs the image processing unit 118 to perform image processing on the detected fluorescence information 402. The image processing unit 118 performs image processing (rasterization and color inversion processing) on the fluorescence information 402. In step S <b> 108, the system control unit 122 instructs the image processing unit 118 to perform image processing on the image read by the scanner unit 101. Next, the system control unit 122 instructs the image processing unit 118 to synthesize the image based on the fluorescence information 402 subjected to the image processing in step S103 with the image processed in step S105 to generate print data. Then, the system control unit 122 instructs the printer control unit 113 to print based on the print data processed by the image processing unit 118 by the printer unit 103.

  Further, the watermark 401 does not have to be attached to the paper 400 shown in FIG. In this case, a watermark registered in advance can be printed. Specifically, when the fluorescence information 402 including the user ID is detected in step 103 in FIG. 4, in step S108, the system control unit 122 instructs the image processing unit 118 to read the image read by the scanner unit 101. Instructs image processing. Next, the system control unit 122 instructs the image processing unit 118 to generate print data by synthesizing the watermark registered in the image processed in step S105. Then, the system control unit 122 instructs the printer control unit 113 to print based on the print data processed by the image processing unit 118 by the printer unit 103.

  Further, in step S103 of FIG. 4, the system control unit 122 may instruct the image processing unit 118 to determine whether or not the detected fluorescent information 402 includes a user ID. If the user information is included in the fluorescence information 402, in step S108, a watermark registered in advance with the image read by the scanner unit 101 may be combined and printed in the same manner as described above. If the user ID is not included in the fluorescence information 402, in step S108, the fluorescence information 402 may be combined with the image read by the scanner unit 101 and printed in the same manner as described above.

100 MFP
101 Scanner unit 102 UV light 103 Printer unit 104 FAX unit 105 I / F
106 Panel 107 HDD
110 Control Unit 111 Scanner Control Unit 112 UV Light Control Unit 113 Printer Control Unit 114 FAX Control Unit 115 Communication Control Unit 116 RAM
117 ROM
118 Image processing unit 119 Authentication management unit 120 Panel operation control unit 121 HDD control unit 122 System control unit 123 Data bus 200a, 200b User terminal 300 Network 400 Paper 401 Watermark 402 Fluorescence information

Claims (4)

A panel section;
A scanner unit for reading an image;
UV light that emits fluorescence information;
An authentication manager that manages security codes;
An image processing unit that performs image processing on an image read by irradiation of visible light by the scanner unit and detection of fluorescence information included in the image;
If the image processing unit detects the fluorescence information, the panel unit displays a message prompting the input of the security code, and the authentication management unit manages the security code input via the panel unit. A system control unit that executes processing associated with the reading operation of the scanner unit only when it is confirmed that the security code matches the security code ;
A printer unit for printing ,
When performing processing associated with the reading operation of the scanner unit, the image processing unit synthesizes fluorescence information with the image read by the scanner unit irradiating the visible light,
The image forming apparatus , wherein the printer unit prints a synthesized image. A panel section;
A scanner unit for reading an image;
UV light that emits fluorescence information including authentication information;
An authentication management unit for managing the authentication information necessary for login;
An image processing unit that performs image processing on an image read by irradiation of visible light by the scanner unit and detection of fluorescence information included in the image;
An image processing unit for detecting optical information;
Only when the authentication management unit confirms that the authentication information included in the detected fluorescence information matches the managed authentication information, a system control unit that executes processing associated with the reading operation of the scanner unit and,
A printer unit for printing ,
When the image processing unit determines that authentication information is included in the fluorescence information,
When performing processing associated with the reading operation of the scanner unit, the image processing unit combines a specific watermark with the image read by the scanner unit,
The printer unit prints the synthesized image,
When the image processing unit determines that authentication information is not included in the fluorescence information,
When performing processing associated with the reading operation of the scanner unit, the image processing unit synthesizes fluorescence information with the image read by the scanner unit irradiating the visible light,
The image forming apparatus , wherein the printer unit prints a synthesized image. A process of reading an image by the scanner unit;
A step of emitting fluorescence information with UV light;
A process of managing the security code by the authentication management unit;
An image processing unit that performs image processing on an image read by irradiation of visible light by the scanner unit and detection of fluorescence information included in the image;
When the image processing unit detects the fluorescence information by the system control unit, the panel control unit displays a content prompting the input of the security code, and the authentication management unit is input via the panel unit. Only when it is confirmed that the security code matches the security code being managed, a step of executing processing associated with the reading operation of the scanner unit;
The printer unit causes the computer that controls the image forming apparatus to execute a process of performing printing ,
When performing processing associated with the reading operation of the scanner unit, the image processing unit synthesizes fluorescence information with the image read by the scanner unit irradiating the visible light,
An image forming program , wherein the printer unit prints a synthesized image. A process of reading an image by the scanner unit;
A step of emitting fluorescence information including authentication information by UV light;
A step of managing the authentication information required at the time of login by an authentication management unit;
An image processing unit that performs image processing on an image read by irradiation of visible light by the scanner unit and detection of fluorescence information included in the image;
Only when the authentication management unit confirms that the authentication information included in the detected fluorescence information matches the managed authentication information by the system control unit, the process associated with the reading operation of the scanner unit is performed. A process to be executed;
The printer unit causes the computer that controls the image forming apparatus to execute a process of performing printing ,
When the image processing unit determines that authentication information is included in the fluorescence information,
When performing processing associated with the reading operation of the scanner unit, the image processing unit combines a specific watermark with the image read by the scanner unit,
The printer unit prints the synthesized image,
When the image processing unit determines that authentication information is not included in the fluorescence information,
When performing processing associated with the reading operation of the scanner unit, the image processing unit synthesizes fluorescence information with the image read by the scanner unit irradiating the visible light,
An image forming program , wherein the printer unit prints a synthesized image.

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