JP4155228B2 - Image processing device - Google Patents

Description

  The present invention relates to an image processing apparatus, and more particularly to an image processing apparatus capable of prohibiting image processing of a copy-prohibited document.

  In recent years, the performance of color copiers has improved dramatically, making it possible to copy at a level indistinguishable from original documents. For this reason, there is a possibility that a copy-prohibited manuscript that is prohibited from being copied, such as securities or banknotes, may be easily forged, which is a social problem.

  Patent Document 1 discloses an image processing apparatus that prevents counterfeiting of a special document by disabling a copying function when an anti-counterfeiting device is removed in an image forming apparatus provided with an anti-counterfeiting device. Yes.

In Patent Document 2, passwords are registered in the detachable developing unit and the control unit, respectively, compared with the input passwords, and the output device is used only when all the passwords match. An output device configured to permit is disclosed.
JP-A-6-54185 JP-A-11-78172

  However, in the above conventional device, the copy function is disabled by detecting the removal of the forgery prevention device, or the use of the output device is permitted only by entering a password. There is a problem that the output operation cannot be performed.

  The present invention has been made under the above background, and an object thereof is to provide an image processing apparatus capable of effectively preventing copying of a copy-prohibited document.

An image processing apparatus of the present invention includes a reading unit that reads a document and acquires image data;
All including partial operations including color scanning, full-color printing, and / or fine printing for performing copy processing of the original in the reading unit and the output unit. A normal mode in which the operation is possible, or a part of the operation is prohibited, and a low-resolution color scan, a monochrome scan, a monochrome print for performing a copy process of the document in the reading unit and the output unit, And / or an image processing device operating in a lock mode that is capable of only other operations including low resolution printing,
A detection unit that detects whether at least a part of the image data read by the reading unit is a copy-prohibited document;
A mode setting unit that shifts the operation mode from the normal mode to the lock mode when at least a part of the image data is detected by the detection unit as the copy-prohibited document;
An operation mode holding unit for holding the current operation mode;
A determination unit that determines the operation mode with reference to the operation mode holding unit;
An operation control unit for controlling operations of the reading unit and the output unit according to the operation mode determined by the determination unit;
Before reading the document by the reading unit or before outputting the image data by the output unit, a permission operation for permitting the reading unit or the output unit to perform the partial operation when not in the lock mode. An accepting operation accepting unit that accepts;
A confirmation unit that confirms the permission operation received by the permission operation reception unit and determines whether the permission operation matches a predetermined permission operation;
When the determination unit determines that the operation mode is the lock mode, a reception unit that receives a release operation for releasing the lock mode;
An authentication unit that performs authentication of the release operation received by the reception unit,
The content of the control of the operation control unit is
When the determination unit determines that the lock mode is not set,
When for the part of the operation in the reading section or the output section,
When it is determined that the permission operation received by the permission operation receiving unit matches the predetermined permission operation, the image data read by the reading unit is not the copy-inhibited document by the detection unit. Is detected,
Allowing the reading unit or the output unit to perform all the operations including the partial operation;
When it is determined that the permission operation received by the permission operation receiving unit matches the predetermined permission operation, and at least a part of the image data read by the reading unit is the copy-prohibited document. If it is detected by the detector,
In the mode setting unit, the operation mode is shifted from the normal mode to the lock mode,
When the determination unit determines that the lock mode is not set,
When causing the reading unit or the output unit to perform the partial operation,
If it is determined that the permission operation received by the permission operation reception unit does not match the predetermined permission operation, the reading unit or the output unit is not performed the part of the operation,
When the determination unit determines that the lock mode is not set,
When not the part of the operation in the reading portion and the output portion,
Let the reading unit or the output unit perform only the other operations,
When the determination unit determines that the lock mode is set,
Even if it is determined that the permission operation matches the predetermined permission operation, the reading unit or the output unit prohibits the part of the operation and allows only the other operation. ,
When the release operation is authenticated by the authentication unit, the mode setting unit, the lock mode is released to shift to the normal mode,
When the release operation is not authenticated by the authentication unit, the mode setting unit is not allowed to release the lock mode.

  Here, the partial operation of the reading unit includes an operation for performing a copy process for a copy-prohibited document, such as a color scan. Other operations of the reading unit include low-resolution color scanning and monochrome scanning. The partial operation of the output unit includes an operation for performing copy processing of a copy-prohibited document, such as full-color printing and fine printing. Alternatively, some operations of the output unit include file output of image data, and writing to various recording media and data transmission. Other operations of the output unit include monochrome printing and low resolution printing. The release operation is, for example, a password input or a predetermined key operation known only by the administrator.

According to the present invention, when a copy-prohibited document is detected, some operations of the reading unit and the output unit are prohibited, and the prohibition is canceled when the release operation is authenticated. Copying can be prevented. For example, if only operations that lead to counterfeiting such as full-color printing are prohibited, even if a copy-prohibited image is detected by mistake, the entire output operation is not prohibited, and monochrome printing can be performed. Therefore, usability is improved.
In the lock mode, a release operation can be received and the release operation can be authenticated. Here, some operations such as color scanning and color printing are normally prohibited, and can be performed when a predetermined key operation or permission operation such as password input is confirmed. For example, the release operation in the lock mode is a special password known only by an administrator or the like, and the normal permission operation is a normal password known by a person concerned in the department. According to this configuration, it is possible to prevent an outsider who does not know a normal password from performing color scanning or color printing.

  In the image processing apparatus, the release operation is a predetermined key operation or a predetermined password input, and may include a registration unit that registers the key operation or the password, and the reception unit includes the key operation or The input of the password is received, and the authentication unit authenticates the release operation when the key operation or the password received by the reception unit matches the key operation or the password registered in the registration unit. Can do.

  Here, only the administrator can register the registration unit.

  According to this configuration, since the release operation is authenticated by the password registered by the administrator, the release operation cannot be performed by a person other than the administrator, so that the copy-prohibited document can be prevented from being counterfeited.

In the image processing apparatus, a resolution receiving unit that receives designation of the resolution for reading the document or the output resolution of the image data, and determines whether the resolution received by the resolution receiving unit is equal to or greater than a predetermined value. A resolution determination unit, wherein when the resolution is greater than or equal to the predetermined value, the detection unit detects the copy-prohibited document. When the resolution is less than the predetermined value, the detection unit detects the copy-prohibited document. Detection can be omitted .

According to this configuration, since a copy-prohibited document is detected when reading a high-resolution document or outputting image data, a copy-prohibited document detection process is performed when reading a low-resolution document or outputting image data. Can be omitted, and the processing speed can be increased.

  It should be noted that any combination of the above-described constituent elements and a conversion of the expression of the present invention between a method, an apparatus, a system, a recording medium, a computer program, etc. are also effective as an aspect of the present invention.

  As described above, according to the present invention, an image processing apparatus capable of effectively preventing duplication of a copy-prohibited document is provided.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a functional block diagram of an image processing apparatus including the image processing apparatus according to the present embodiment. The image processing apparatus 10 is, for example, a full color copying apparatus. In FIG. 1, the configuration of parts not related to the essence of the present invention is omitted.

  Each component of the image processing apparatus 10 includes an arbitrary computer CPU, memory, a program for realizing the components shown in the figure loaded in the memory, a storage unit such as a hard disk for storing the program, and a network connection interface. It is realized by any combination of hardware and software. It will be understood by those skilled in the art that there are various modifications to the implementation method and apparatus. Each drawing described below shows a functional unit block, not a hardware unit configuration.

  The image processing apparatus 10 includes a reading unit 11, an image data storage unit 13, an output unit 15, an instruction receiving unit 17, and a prohibited document copy preventing unit 20.

  The reading unit 11 reads a document in color or monochrome and acquires image data. The image data storage unit 13 stores the image data acquired by the reading unit 11. The output unit 15 outputs the image data stored in the image data storage unit 13 in color or monochrome.

  The instruction receiving unit 17 receives an operation instruction for specifying reading of a document and a copy start instruction. The reading of the original can be specified as color, monochrome, or automatic determination. When the instruction receiving unit 17 receives color designation, the instruction receiving unit 17 notifies the reading unit 11 to read the document in color. When the monochrome designation is received, the instruction receiving unit 17 notifies the reading unit 11 to read the document in monochrome. In addition, the instruction receiving unit 17 notifies the received instruction to a color detection unit described later.

  The prohibited document copy prevention unit 20 includes a detection unit 21, a lock / release unit 23, a release operation reception unit 25, an authentication unit 27, and a release operation storage unit 29.

  The detection unit 21 detects whether at least a part of the image data read in color is a copy-prohibited document. The detection unit 21 detects a copy-prohibited document using a known technique. The lock / release unit 23 prohibits some operations of the reading unit 11 and the output unit 15 when it is detected that the image data is a copy-prohibited document. Further, the lock / release unit 23 cancels the prohibition of the operation after authenticating the release operation described later. Here, the partial operation of the reading unit 11 includes an operation for performing copy processing of a copy-prohibited document, such as color scanning. Other operations of the reading unit 11 include low-resolution color scanning and monochrome scanning. A part of the operation of the output unit 15 includes an operation for performing a copy process of a copy-prohibited document, such as full-color printing and fine printing. Other operations of the output unit 15 include monochrome printing and low resolution printing.

  The release operation accepting unit 25 accepts a release operation after the lock / release unit 23 prohibits the operation. The release operation is, for example, input of a password known only by the administrator or predetermined key operation.

  The authentication unit 27 authenticates the release operation received by the release operation reception unit 25. The release operation storage unit 29 stores release operations registered in advance by an administrator or the like. The release operation storage unit 29 is referred to when the authentication unit 27 authenticates the release operation. The authentication unit 27 checks whether or not the release operation received by the release operation reception unit 25 matches the release operation registered in the release operation storage unit 29. When the release operation received by the release operation reception unit 25 matches the registered release operation, the authentication unit 27 authenticates the received release operation and notifies the lock / release unit 23 of the release of the prohibition.

  FIG. 2 is a detailed functional block diagram of the prohibited document copy prevention unit 20 which is a main configuration of the image processing apparatus 10 according to the present embodiment. The prohibited document copy prevention unit 20 includes a color detection unit 31 and a prohibited document in addition to the lock / release unit 23, the release operation reception unit 25, the authentication unit 27, and the release operation storage unit 29 shown in FIG. A detection unit 33, an operation mode holding unit 35, and an operation mode determination unit 37 are included.

  The color detection unit 31 detects whether the image data of the document is color and notifies the prohibited document detection unit 33. Specifically, the color detection unit 31 detects whether the instruction reception unit 17 has received a color designation. In addition, the color detection unit 31 detects whether or not the automatic determination designation is received by the instruction reception unit 17, and detects whether or not the image data read by the reading unit 11 is color when the automatic determination specification is detected. The prohibited document detection unit 33 detects whether at least a part of the image data read by the reading unit 11 is image data of a copy prohibited document. If it is image data of a copy-prohibited document, the lock / release unit 23 is notified.

  The lock / release unit 23 shifts the operation mode to the lock mode when the prohibited document detection unit 33 is notified of detection of image data of a copy prohibited document. The lock / release unit 23 shifts the operation mode from the lock mode to the normal mode when the authentication unit 27 authenticates the release operation. The operation mode holding unit 35 holds the current operation mode. The operation mode determination unit 37 refers to the operation mode holding unit 35 to determine the current operation mode and notifies the authentication unit 27, the reading unit 11, and the output unit 15. In the reading unit 11 and the output unit 15, when the operation mode determination unit 37 notifies that the normal mode is set, all operations can be performed. On the other hand, when it is notified from the operation mode determination unit 37 that the lock mode is set, the reading unit 11 and the output unit 15 are prohibited from performing a part of the operation, and only the other operations can be executed. That is, some operations such as color scanning, full-color printing, and fine printing are prohibited, and other operations such as low-resolution color scanning, monochrome scanning, monochrome printing, and low-resolution printing are permitted.

  When the operation unit determination unit 37 notifies the authentication unit 27 that the lock mode is set, the authentication unit 27 authenticates the release operation received by the release operation reception unit 25. The authentication unit 27 notifies the lock / release unit 23 when the release operation is authenticated.

  The operation of the image processing apparatus 10 configured as described above will be described below. FIG. 3 is a flowchart showing the operation of the image processing apparatus 10. Hereinafter, a description will be given with reference to FIGS. 1 to 3.

  In FIG. 3, first, when the instruction receiving unit 17 receives a copy start instruction, this processing starts, and the operation mode determination unit 37 determines whether or not the operation mode is a lock mode (S11). In the lock mode (YES in S11), the color detection unit 31 determines whether or not the operation instruction received by the instruction reception unit 17 is color designation (S13). In the case of color designation (YES in S13), the authentication unit 27 performs an authentication process described later (S15). That is, when color is designated in the lock mode, a copy start instruction is not accepted. On the other hand, if the color is not designated (NO in S13), and if it is determined in step S11 that the lock mode is not set, the reading unit 11 reads the document and acquires image data (S17). The image data is stored in the image data storage unit 13.

  Subsequently, the color detection unit 31 detects whether the image data stored in the image data storage unit 13 is color (S19). Alternatively, the color detection unit 31 detects whether the operation instruction received by the instruction reception unit 17 is color designation. When the image data is not in color or not in color designation, the output unit 15 outputs the image data (S21). In this case, since the image data is not color, the output unit 15 performs monochrome printing. On the other hand, when the image data is color or color designation (YES in S19), the prohibited document detection unit 33 detects whether at least a part of the image data is image data of a copy prohibited document (S23). If the document is not a copy-prohibited document (NO in S23), the process proceeds to step S21, and the output unit 15 outputs image data. In this case, since the image data is color, for example, the output unit 15 performs full color printing.

  On the other hand, in the case of a copy-prohibited document (YES in S23), the lock / release unit 23 is notified, and the lock / release unit 23 shifts the operation mode to the lock mode (S25). The operation mode is held in the operation mode holding unit 35.

  Note that the image data reading process in step S17 and the image data output process in step S21 are usually performed simultaneously in parallel. That is, the image data read by the reading unit 11 in step S17 and stored in the image data storage unit 13 is sequentially output by the output unit 15 reading the image data from the image data storage unit 13 in step S21. Accordingly, the determinations in step S19 and step S23 are made before being output by the output unit 15 every time image data is read from the image data storage unit 13 in step S21.

  When a copy-prohibited document is detected in step S23, output of image data that has already been stored in the image data storage unit 13 and has not been output is permitted if it is determined in step S19 and step S23 that it is not a copy-prohibited document. You may do it.

  FIG. 4 is a flowchart showing details of the authentication processing of FIG. Here, when full-color printing is performed, the cancellation operation accepting unit 25 accepts a normal password and permits full-color printing only when authenticated by the authentication unit 27.

  Here, the normal password is a password that is requested to be input when an operation such as color scanning or color printing is performed, and is a password that is known to the person concerned in the department. The cancel operation accepting unit 25 accepts a normal password as a permitting operation for permitting operations such as color scanning and color printing before reading the document by the reading unit 11 or outputting image data by the output unit 15. The permission operation may be a predetermined key operation. This process will be described later with reference to FIG. The password for the release operation is called a special password.

  This process is not only called from step S19 in FIG. 3, but is also called when the release operation receiving unit 25 receives an operation of the administrator's release request when the administrator tries to release the lock mode. It is.

  First, when the authentication process starts, the release operation reception unit 25 receives a release operation such as a password (S31). Subsequently, the authentication unit 27 determines whether or not the password matches the normal password (S33). If it matches the normal password (YES in S33), a message indicating that a copy-prohibited document has been detected is displayed on a display unit (not shown) (S35). On the other hand, when the password does not match the normal password (NO in S33), the authentication unit 27 determines whether or not the received password matches the special password (S37). When the password matches the special password (YES in S37), the authentication unit 27 notifies the lock / release unit 23 that the accepted password has been authenticated. Upon receiving the notification, the lock / release unit 23 releases the lock mode and shifts to the normal mode (S39). On the other hand, if it does not match the special password (NO in S37), a message indicating that the password does not match is displayed on the display unit (not shown) (S41).

  FIG. 5 is a flowchart showing the operation during color printing of the image processing apparatus 10 of FIG. After it is detected that the image data stored in the image data storage unit 13 is color in step S19 of FIG. 3 (YES in S19), the release operation reception unit 25 receives an input of a password (S51). The authentication unit 27 determines whether or not the input password matches the normal password (S53). If the password matches the normal password (YES in S53), the process proceeds to step S23 in FIG. That is, if the password matches the normal password (YES in S53), color printing is permitted. However, if a copy-prohibited document is detected in the subsequent step S23 of FIG. 3, color printing is prohibited.

  On the other hand, if the password does not match (NO in S53), a message indicating that the password does not match is displayed on the display unit (S55). In this case, the process ends without performing color printing.

  Thus, by providing a normal password, it is possible to prevent an outsider who does not know the normal password from performing color printing or the like.

  Next, an operation when the user tries to copy a copy-prohibited document in the normal mode in the image processing apparatus 10 according to the present embodiment will be described with reference to FIGS.

  In FIG. 3, first, when the instruction receiving unit 17 receives a copy start instruction, the operation mode determination unit 37 determines whether or not the operation mode is a lock mode (S11). It is determined that the lock mode is not set (NO in S11), and the reading unit 11 reads a copy-prohibited document, and image data is acquired (S17) and stored in the image data storage unit 13. Subsequently, the color detection unit 31 detects that the image data is color (YES in S19), and the prohibited document detection unit 33 detects that at least a part of the image data is image data of a copy prohibited document. (YES in S23).

  Detection of the image data of the copy-prohibited document is notified to the lock / release unit 23, and the lock / release unit 23 shifts the operation mode to the lock mode (S25). In this way, the image processing apparatus 10 enters the lock mode, and color printing and fine printing are prohibited.

  Next, the operation when the user who does not know the release operation tries to copy by color printing after shifting to the lock mode will be described with reference to FIGS.

  First, in FIG. 3, when the instruction receiving unit 17 receives a copy start instruction, the operation mode determination unit 37 determines whether or not the operation mode is a lock mode (S11). Since the lock mode is set (YES in S11), the color detection unit 31 determines whether or not the operation instruction received by the instruction reception unit 17 is color designation (S13). Since the color is designated (YES in S13), the process proceeds to the authentication process (S15).

  In the authentication process of FIG. 4, the release operation reception unit 25 requests the user to input a password and receives the input password (S31). However, since the user does not know the release operation, it is assumed that the user has appropriately input a password. Therefore, the authentication unit 27 determines that it does not match the normal password (NO in S33), and further determines that it does not match the special password (NO in S37). Accordingly, a message indicating that the passwords do not match is displayed (S41), and the output unit 15 ends the process without printing. In this manner, the image processing apparatus 10 is prohibited from color printing during the lock mode.

  On the other hand, in FIG. 3, when the user tries to perform monochrome printing, in step S13, the color detection unit 31 determines that the operation instruction received by the instruction reception unit 17 is monochrome designation (NO in S13), and step S13. In S17, the reading unit 11 reads a document and acquires image data (S17). The image data is stored in the image data storage unit 13. Subsequently, the color detection unit 31 detects that the operation instruction received by the instruction reception unit 17 is monochrome designation (NO in S19), and the output unit 15 performs monochrome printing (S21).

  Next, an operation when the administrator releases the lock mode will be described with reference to FIGS.

  First, when the release operation accepting unit 25 accepts the administrator's unlock operation, the authentication process of FIG. 4 is called. The release operation reception unit 25 requests the user to input a password and receives the input password (S31). Here, the administrator inputs a special password for the release operation.

  Subsequently, the authentication unit 27 determines that the password does not match the normal password (NO in S33), and further determines that the password matches the special password (YES in S37). The authentication unit 27 notifies the lock / release unit 23 that the accepted password has been authenticated. Upon receiving the notification, the lock / release unit 23 releases the lock mode and shifts to the normal mode (S39). In this way, the lock mode is released and color printing is possible.

  As described above, according to the present embodiment, when a copy-prohibited document is detected, some operations of the reading unit and the output unit are prohibited, and the prohibition is canceled when the release operation is authenticated. Therefore, it is possible to reliably prevent copying of copy-prohibited documents.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and it goes without saying that those skilled in the art can modify the above-described embodiments within the scope of the present invention.

  In the above embodiment, the network facsimile apparatus and the MFP have been described as the image processing apparatus 10, but the present invention is not limited to this. For example, the image processing apparatus 10 includes a personal computer and a workstation provided with the image processing apparatus of the present invention.

  In the above embodiment, when image data of a copy-prohibited document is detected, the mode is shifted to the lock mode, and color printing, fine printing, etc. are prohibited. It is good also as a structure which prints by switching to.

  In the above embodiment, the normal password input confirmation in the flowchart of FIG. 5 is performed before color printing, but may be performed before color scanning. For example, when the operation mode determination unit 37 determines that the operation mode is not the lock mode (NO in S11 of FIG. 3), the color detection unit 31 determines whether or not the operation instruction received by the instruction reception unit 17 is color designation. In the case of color designation, the normal password input confirmation in FIG. 5 may be performed. If the normal password is confirmed, the process proceeds to step S17 in FIG. 3, and the reading unit 11 can read the document and acquire image data.

  According to this configuration, it is possible to prevent an outsider who does not normally know the password from performing color scanning.

  In the above embodiment, the case where the output unit 15 prints out the image data read by the reading unit 11 and stored in the image data storage unit 13 has been described, but the present invention is not limited to this. For example, the output unit 15 can include a writing unit that writes a file of image data stored in the image data storage unit 13 to various recording media, or a transmission unit that transmits the file to the outside.

  In this case, the output destination from which the output unit 15 outputs the image data in step 21 of FIG. 3 is the writing unit or the transmission unit, respectively. According to this configuration, it is possible to prevent the image data of a copy-prohibited document from being taken outside.

  Further, the instruction receiving unit 17 may receive an operation instruction for designating a resolution for reading a document or a resolution for outputting image data. The instruction receiving unit 17 notifies the reading unit 11 and the output unit 15 of the received designation. In this case, the image processing apparatus 10 further includes a determination unit that determines whether the designation of the resolution received by the instruction receiving unit 17 is greater than or equal to a predetermined value, that is, whether the resolution is fine.

  If it is determined in step S19 in FIG. 3 that the image data is in color (YES in S19), whether or not the resolution designation received by the instruction receiving unit 17 is equal to or greater than a predetermined value. If it is greater than or equal to the predetermined value, the process proceeds to step S23, where the prohibited document detection unit 33 detects a copy prohibited document. On the other hand, if it is less than the predetermined value, the process proceeds to step S 21, and the output unit 15 performs color printing at the resolution specified by the instruction receiving unit 17.

  According to this configuration, since a copy-prohibited document is detected when reading a high-resolution document or outputting image data, a copy-prohibited document detection process is performed when reading a low-resolution document or outputting image data. Can be omitted, and the processing speed can be increased.

  The image processing apparatus according to the present invention has an effect of being able to effectively prevent duplication of a copy-prohibited original, and is useful as an image processing apparatus capable of prohibiting image processing of a copy-prohibited original.

It is a functional block diagram of the image processing apparatus of this Embodiment. FIG. 2 is a functional block diagram of a prohibited document copy prevention unit that is a main configuration of the image processing apparatus of FIG. 1. 2 is a flowchart illustrating an operation of the image processing apparatus in FIG. 1. It is a flowchart of the authentication process of FIG. 2 is a flowchart illustrating an operation during color printing of the image processing apparatus of FIG. 1.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Image processing apparatus 11 Reading part 13 Image data memory | storage part 15 Output part 17 Instruction reception part 20 Prohibited copy prevention part 21 Detection part 23 Lock / release part 25 Release operation reception part 27 Authentication part 29 Release operation storage part 31 Color detection part 33 Prohibited Document Detection Unit 35 Operation Mode Holding Unit 37 Operation Mode Determination Unit

Claims (3)

A reading unit that reads a document and acquires image data;
All including partial operations including color scanning, full-color printing, and / or fine printing for performing copy processing of the original in the reading unit and the output unit. A normal mode in which the operation is possible, or a part of the operation is prohibited, and a low-resolution color scan, a monochrome scan, a monochrome print for performing a copy process of the document in the reading unit and the output unit, And / or an image processing device operating in a lock mode that is capable of only other operations including low resolution printing,
A detection unit that detects whether at least a part of the image data read by the reading unit is a copy-prohibited document;
A mode setting unit that shifts the operation mode from the normal mode to the lock mode when at least a part of the image data is detected by the detection unit as the copy-prohibited document;
An operation mode holding unit for holding the current operation mode;
A determination unit that determines the operation mode with reference to the operation mode holding unit;
An operation control unit for controlling operations of the reading unit and the output unit according to the operation mode determined by the determination unit;
Before reading the document by the reading unit or before outputting the image data by the output unit, a permission operation for permitting the reading unit or the output unit to perform the partial operation when not in the lock mode. An accepting operation accepting unit that accepts;
A confirmation unit that confirms the permission operation received by the permission operation reception unit and determines whether the permission operation matches a predetermined permission operation;
When the determination unit determines that the operation mode is the lock mode, a reception unit that receives a release operation for releasing the lock mode;
An authentication unit that performs authentication of the release operation received by the reception unit,
The content of the control of the operation control unit is
When the determination unit determines that the lock mode is not set,
When for the part of the operation in the reading section or the output section,
When it is determined that the permission operation received by the permission operation receiving unit matches the predetermined permission operation, the image data read by the reading unit is not the copy-inhibited document by the detection unit. Is detected,
Allowing the reading unit or the output unit to perform all the operations including the partial operation;
When it is determined that the permission operation received by the permission operation receiving unit matches the predetermined permission operation, and at least a part of the image data read by the reading unit is the copy-prohibited document. If it is detected by the detector,
In the mode setting unit, the operation mode is shifted from the normal mode to the lock mode,
When the determination unit determines that the lock mode is not set,
When causing the reading unit or the output unit to perform the partial operation,
If it is determined that the permission operation received by the permission operation reception unit does not match the predetermined permission operation, the reading unit or the output unit is not performed the part of the operation,
When the determination unit determines that the lock mode is not set,
When not the part of the operation in the reading portion and the output portion,
Let the reading unit or the output unit perform only the other operations,
When the determination unit determines that the lock mode is set,
Even if it is determined that the permission operation matches the predetermined permission operation, the reading unit or the output unit prohibits the part of the operation and allows only the other operation. ,
When the release operation is authenticated by the authentication unit, the mode setting unit, the lock mode is released to shift to the normal mode,
The image processing apparatus, wherein when the release operation is not authenticated by the authentication unit, the mode setting unit does not release the lock mode. The image processing apparatus according to claim 1.
The release operation is a predetermined key operation or a predetermined password input,
A registration unit for registering the key operation or the password;
The reception unit receives the key operation or the input of the password,
The authentication unit authenticates the release operation when the key operation or the password received by the receiving unit matches the key operation or the password registered in the registration unit. . The image processing apparatus according to claim 1 or 2,
A resolution accepting unit for accepting designation of a resolution for reading the original document or a resolution for outputting the image data;
A resolution determination unit that determines whether or not the resolution received by the resolution reception unit is a predetermined value or more,
When the resolution is equal to or higher than the predetermined value, the detection unit detects the copy-inhibited original, and when the resolution is lower than the predetermined value, the detection unit detects the copy-inhibited original. An image processing apparatus.

Images