JP2019083380A - Image forming system and image forming program - Google Patents

Abstract

To provide an image forming system and an image forming program that can facilitate deletion of print data stored in a storage device.SOLUTION: An image forming apparatus stores print data including a file to be printed received through a communication unit and print setting information in a storage unit, and causes a printer to execute printing based on the print data stored in the storage unit according to an operation input to an operation unit. When new print data as print data newly received by the communication unit and old print data as the print data already stored in the storage unit satisfy all of a plurality of specific conditions, the image forming apparatus deletes the old data (S207). The plurality of conditions include a condition where a user associated with the new print data and a user associated with the old print data are the same (S201), and a condition where a file included in the new print data and a file included in the old print data are the same (S205).SELECTED DRAWING: Figure 10

Description

  The present invention stores in a storage device a file to be printed and print data including print setting information received via a communication device, and printing based on print data stored in the storage device to an input device The present invention relates to an image forming system and an image forming program to be executed by a printing device according to an input operation.

  Conventionally, a print target file received via a communication device and print data including print setting information are stored in a storage device, and printing based on print data stored in the storage device is input to an input device. There is known an image forming system that causes a printing device to execute in response to an operation (see, for example, Patent Document 1).

JP 2000-276314 A

  However, in the image forming system described in Patent Document 1, after the print data is stored in the storage device, the user is caused by an error in the print setting indicated in the print setting information included in the print data stored in the storage device. If the user wishes to delete print data stored in the storage device, for example, the user must search for print data to be deleted from the print data stored in the storage device. There is a problem that it is time-consuming for the user.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an image forming system and an image forming program capable of facilitating deletion of print data stored in a storage device.

  The image forming system according to the present invention includes a communication device for communicating, a storage device for storing information, an input device for receiving an operation, a printing device for printing an image on a recording medium, and reception via the communication device. Print data storing means for storing print data including print target files and print setting information in the storage device, and inputting the print based on the print data stored in the storage device into the input device Print execution means to be executed by the printing device according to the executed operation, new print data as the print data newly received by the communication device, and the print data already stored in the storage device Print data for deleting the old print data when the old print data satisfies all of a plurality of specific conditions The plurality of conditions are included in the new print data under the condition that the user associated with the new print data and the user associated with the old print data are identical A condition is included that the file and the file included in the old print data are identical.

  According to this configuration, in the image forming system according to the present invention, a plurality of conditions in which new print data as print data newly received by the communication device and old print data as print data already stored in the storage device are specified. When all the above are satisfied, the old print data is deleted, so deletion of the print data stored in the storage device can be facilitated.

  In the image forming system of the present invention, the plurality of conditions may include a condition that a difference between a request time of the new print data and a request time of the old print data is within a specific time.

  According to this configuration, the image forming system of the present invention is characterized in that the user associated with the new print data and the user associated with the old print data are identical, a file included in the new print data, Even when all the conditions that the file included in the old print data is identical are satisfied, the difference between the request time of the new print data and the request time of the old print data is not within a specific time, Since old print data is not deleted, print data for multiple times can be stored in the storage device when print data for the same file is intentionally sent multiple times by the same user, improving convenience can do.

  In the image forming system of the present invention, when the print data deletion unit includes the request time of the print data in the name of the file included in the print data, the print data deletion unit uses the name of the file included in the new print data. It is included in the new print data when the value excluding the request time of the new print data is the same as the value excluding the request time of the old print data from the name of the file included in the old print data It may be determined that the file and the file included in the old print data are identical.

  With this configuration, when the file name included in the print data includes the print data request time, the image forming system according to the present invention excludes the new print data request time from the file name included in the new print data. And the file included in the new print data is the same as the file included in the old print data because the old print data is compared with the value obtained by excluding the request time of the old print data from the name of the file included in the old print data. It can be judged appropriately whether there is any.

  An image forming program according to the present invention comprises an image forming apparatus including a communication device for communicating, a storage device for storing information, an input device for receiving an operation, and a printing device for printing an image on a recording medium. Print data storage means for storing in the storage device a print target file received via a communication device and print data including print setting information, and printing based on the print data stored in the storage device Print execution means for causing the printing device to execute the command according to the operation input to the input device, new print data as the print data newly received by the communication device, and the storage device already stored When the old print data as the print data satisfies all of a plurality of specific conditions, the old print data Print data deleting means for deleting the print data, and the plurality of conditions include that the user associated with the new print data and the user associated with the old print data are the same; A condition is included that a file to be printed of the new print data and a file to be printed of the old print data are identical.

  According to this configuration, in the image forming apparatus executing the image forming program of the present invention, the print data newly received by the communication device and the print data already stored in the storage device all satisfy a plurality of specific conditions. Since the print data already stored in the storage device is deleted, deletion of print data stored in the storage device can be facilitated.

  The image forming system and the image forming program of the present invention can facilitate deletion of print data stored in a storage device.

FIG. 1 is a block diagram of a system according to an embodiment of the present invention. FIG. 2 is a block diagram of the image forming apparatus shown in FIG. 1 in the case of an MFP. It is a block diagram of a computer shown in FIG. FIG. 6 is a sequence diagram of the operation of the system shown in FIG. 1 when the image forming apparatus executes normal printing based on print data transmitted by a computer. FIG. 6 is a sequence diagram of the operation of the system shown in FIG. 1 when the image forming apparatus stores print data transmitted by a computer. 3 is a flowchart of an operation of the image forming apparatus shown in FIG. 2 when printing is performed based on print data stored in a storage unit. FIG. 7 is a view showing an example of a print data management screen displayed in the operation shown in FIG. 6; FIG. 8 is a sequence diagram of the operation of the system shown in FIG. 1 when deleting print data stored in the image forming apparatus from a computer using a management program. FIG. 3 is a flowchart of an operation of the image forming apparatus shown in FIG. 2 in the case where print data stored in a storage unit is deleted according to an operation via an operation unit. 9 is a flowchart of the operation of the image forming apparatus shown in FIG. 2 in the case of deleting print data stored in the storage unit when print data is newly received. It is a flowchart of the file identification processing shown in FIG.

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

  First, the configuration of a system according to an embodiment of the present invention will be described.

  FIG. 1 is a block diagram of a system 10 according to the present embodiment.

  As shown in FIG. 1, the system 10 includes an image forming apparatus 20 as an image forming system and a network such as a LAN (Local Area Network) or the Internet, or directly via a wired or wireless network without a network. A computer 30 capable of communicating with the image forming apparatus 20 is provided.

  The system 10 can include at least one computer having the same configuration as the computer 30, in addition to the computer 30. Each of the computers included in system 10 is used by different users.

  The image forming apparatus 20 is, for example, an MFP (Multifunction Peripheral) or a printer dedicated machine. The image forming apparatus 20 is installed at a location away from at least one of the computers included in the system 10.

  The computer 30 may be configured by, for example, a PC (Personal Computer).

  FIG. 2 is a block diagram of the image forming apparatus 20 in the case of the MFP.

  The image forming apparatus 20 shown in FIG. 2 is a display such as an operation unit 21 which is an input device such as a button to which various operations are input, and a display device such as an LCD (Liquid Crystal Display) which displays various information. The communication unit 22 communicates with a printer 23, which is a printing device for printing an image on a recording medium such as paper, a scanner 24 which is a reading device for reading an image from a document, and an external facsimile machine (not shown) and a public telephone line. Fax communication unit 25, which is a fax device that performs fax communication via a line, and a communication device that communicates with an external device directly via a network such as a LAN or the Internet, or by wire or wirelessly without using a network. A certain communication unit 26 stores various information For example, a storage unit 27 that is a non-volatile storage device such as a semiconductor memory or a hard disk drive (HDD), and a control unit 28 that controls the entire image forming apparatus 20 are provided.

  The storage unit 27 stores an image forming program 27a. The image forming program 27a may be installed in the image forming apparatus 20 at the manufacturing stage of the image forming apparatus 20, for example, or may be added to the image forming apparatus 20 from an external storage medium such as a USB (Universal Serial Bus) memory. It may be installed, or may be additionally installed on the image forming apparatus 20 from the network.

  The storage unit 27 can store at least one print data 27 b. The print data 27 b includes a print target file 27 c and print setting information 27 d. Examples of print settings indicated in the print setting information 27 d include the size, number of copies, aggregation, and the like of a recording medium on which printing is to be performed.

  The control unit 28 includes, for example, a central processing unit (CPU), a read only memory (ROM) storing a program and various data, and a random access memory (RAM) used as a work area of the CPU. There is. The CPU executes a program stored in the ROM or the storage unit 27.

  The control unit 28 executes the image forming program 27 a to thereby store print data storage means 28 a that stores print data received via the communication unit 26 in the storage unit 27, and print data 27 b stored in the storage unit 27. Print execution means 28 b that causes the printer 23 to execute printing based on the operation unit 21, new print data as print data newly received by the communication unit 26, and the storage unit 27. A print data deletion unit 28c that deletes old print data when the old print data as the stored print data 27b satisfies all of a plurality of specific conditions is realized.

  FIG. 3 is a block diagram of the computer 30. As shown in FIG.

  The computer 30 shown in FIG. 3 includes an operation unit 31 which is an input device such as a keyboard and a mouse to which various operations are input, a display unit 32 which is a display device such as an LCD to display various information, and a LAN. , A communication device 33 which is a communication device for communicating with an external device directly via a network such as the Internet or without a network by wire or wireless, and a semiconductor memory, HDD, etc. for storing various information A storage unit 34, which is a non-volatile storage device, and a control unit 35 that controls the entire computer 30.

  The storage unit 34 stores a printer driver 34a for transmitting print data to the image forming apparatus 20 (see FIG. 2) and a management program 34b for managing print data stored in the image forming apparatus 20. It is possible. The printer driver 34a and the management program 34b may be installed in the computer 30 at the manufacturing stage of the computer 30, respectively, or may be an external storage such as a USB memory, a CD (Compact Disk), a DVD (Digital Versatile Disk), etc. The program may be additionally installed from the medium to the computer 30, or may be additionally installed from the network to the computer 30.

  The control unit 35 includes, for example, a CPU, a ROM storing programs and various data, and a RAM used as a work area of the CPU. The CPU executes a program stored in the ROM or the storage unit 34.

  Next, the operation of the system 10 will be described.

  First, the operation of the system 10 in the case where the image forming apparatus 20 executes normal printing based on print data transmitted by the computer 30 will be described.

  FIG. 4 is a sequence diagram of the operation of the system 10 when the image forming apparatus 20 executes normal printing based on print data transmitted by the computer 30.

  The user causes the image forming apparatus 20 to execute normal printing with the print settings specified via the operation unit 31 and the file specified via the operation unit 31 of the computer 30 via the operation unit 31. The computer 30 can be instructed. Therefore, as shown in FIG. 4, the control unit 35 of the computer 30 executes the printer driver 34 a to print the file designated via the operation unit 31 with the print setting designated via the operation unit 31. Print data for causing the image forming apparatus 20 to execute printing is generated (S101), and a request for printing based on the print data generated in S101 is transmitted to the image forming apparatus 20 via the communication unit 33 (S102). ).

  When the printing execution unit 28b of the image forming apparatus 20 receives the request transmitted from the computer 30 in S102 via the communication unit 26, the printing based on the print data received via the communication unit 26 with the request is a printer 23 is executed (S103).

  Next, the operation of the system 10 when the image forming apparatus 20 stores the print data transmitted by the computer 30 will be described.

  FIG. 5 is a sequence diagram of the operation of the system 10 when the image forming apparatus 20 stores the print data transmitted by the computer 30.

  The user causes the image forming apparatus 20 to print data for causing the image forming apparatus 20 to execute printing with a file specified via the operation unit 31 of the computer 30 and print settings specified via the operation unit 31. The storage can be instructed to the computer 30 via the operation unit 31. Therefore, the control unit 35 of the computer 30 executes the printer driver 34a to print the file designated via the operation unit 31 with the print setting designated via the operation unit 31 as shown in FIG. The print data for causing the image forming apparatus 20 to execute printing is generated (S121), and a request for storing the print data generated in S121 is transmitted to the image forming apparatus 20 via the communication unit 33 (S122).

  When the print data storage unit 28a of the image forming apparatus 20 receives the request transmitted from the computer 30 in S122 via the communication unit 26, the print data received via the communication unit 26 with this request is used as the print data 27b. It memorize | stores in the memory | storage part 27 (S123). The print data storage unit 28a executes the process of S123 after the operation shown in FIG. 10 described later is completed.

  Note that the identification information of the user who has executed this request (hereinafter referred to as “user ID”) is one of the request sent from the computer 30 in S122 and the print data received with the request via the communication unit 26. "Is included. The print data storage means 28a is only for the request sent from the computer 30 at S122 among the request sent from the computer 30 at S122 and the print data received via the communication unit 26 together with this request. If the user ID of the user who has executed the request is included, the user ID is stored in association with the print data 27b stored in the storage unit 27 in S123.

  The transmission time of the request, that is, the request time is included in any of the request transmitted from the computer 30 in S122 and the print data received via the communication unit 26 together with the request. The print data storage means 28a is only for the request sent from the computer 30 at S122 among the request sent from the computer 30 at S122 and the print data received via the communication unit 26 together with this request. If the transmission time of the request is included, the transmission time is stored in association with the print data 27b stored in the storage unit 27 in S123.

  Next, the operation of the image forming apparatus 20 when printing is performed based on the print data 27 b stored in the storage unit 27 will be described.

  FIG. 6 is a flowchart of the operation of the image forming apparatus 20 when printing is performed based on the print data 27 b stored in the storage unit 27.

  The user logs in to the image forming apparatus 20 via the operation unit 21 of the image forming apparatus 20, and then displays the print data 27b stored in the storage unit 27 on the image forming apparatus 20 via the operation unit 21. Can be instructed.

  As shown in FIG. 6, when an instruction to display the print data 27b is given, the print data storage means 28a of the image forming apparatus 20 can receive the login user from the print data 27b stored in the storage unit 27. A print data management screen 40 (see FIG. 7) including a list of print data 27b associated with the user ID is displayed on the display unit 22 (S141).

  FIG. 7 is a diagram showing an example of the print data management screen 40. As shown in FIG.

  The print data management screen 40 shown in FIG. 7 includes a list 41 of the print data 27 b associated with the user ID of the logged-in user among the print data 27 b stored in the storage unit 27 and the list 41. A print button 42 for instructing execution of printing based on the designated print data 27 b and a delete button 43 for deleting the print data 27 b designated in the list 41 are included. In the list 41, the request time associated with the print data 27b, the name of the file 27c to be printed, and the print setting indicated in the print setting information 27d are shown for each print data 27b.

  As shown in FIG. 6, when the print button 42 is pressed after the process of S141, the print execution unit 28b prints based on the print data 27b specified in the list 41 when the print button 42 is pressed. Are executed by the printer 23 (S142), and the operation shown in FIG. 6 is ended.

  Next, the operation of the system 10 when the print data 27b stored in the image forming apparatus 20 is deleted from the computer 30 using the management program 34b will be described.

  FIG. 8 is a sequence diagram of the operation of the system 10 when the print data 27b stored in the image forming apparatus 20 is deleted from the computer 30 using the management program 34b.

  The user can instruct the computer 30 via the operation unit 31 to display the print data 27 b stored in the image forming apparatus 20 on the display unit 32. Therefore, the control unit 35 of the computer 30 executes the operation shown in FIG. 8 by executing the management program 34b. That is, as shown in FIG. 8, the control unit 35 of the computer 30 requests the image forming apparatus 20 via the communication unit 33 for a list of print data associated with the logged-in user (S161). This request includes the user ID of the user who is logging in to the computer 30.

  When the print data storage unit 28 a of the image forming apparatus 20 receives the request of S 161, the print data 27 b associated with the user ID included in the request of S 161 among the print data 27 b stored in the storage unit 27. Are transmitted to the computer 30 via the communication unit 26 (S162). Similar to the list 41, this list shows the request time associated with the print data 27b, the name of the file 27c to be printed, and the print settings shown in the print setting information 27d for each print data 27b. There is.

  When the control unit 35 of the computer 30 receives the list transmitted in S162, the control unit 35 displays the received list on the display unit 32 (S163). The user can designate any print data in the list via the operation unit 31 and can instruct the computer 30 via the operation unit 31 to cause the image forming apparatus 20 to delete the designated print data. . Therefore, the control unit 35 of the computer 30 transmits a request for deletion of print data designated via the operation unit 31 to the image forming apparatus 20 via the communication unit 33 (S164).

  When the print data deletion means 28c of the image forming apparatus 20 receives the request transmitted from the computer 30 in S164 via the communication unit 26, the print data deletion means 28c deletes the print data 27b specified in the request from the storage unit 27 ( S165).

  Next, the operation of the image forming apparatus 20 in the case where the print data 27 b stored in the storage unit 27 is deleted according to the operation via the operation unit 21 will be described.

  FIG. 9 is a flowchart of the operation of the image forming apparatus 20 in the case where the print data 27 b stored in the storage unit 27 is deleted according to the operation via the operation unit 21.

  The user logs in to the image forming apparatus 20 via the operation unit 21 of the image forming apparatus 20, and then displays the print data 27b stored in the storage unit 27 on the image forming apparatus 20 via the operation unit 21. Can be instructed.

  As shown in FIG. 9, when the print data storage means 28a of the image forming apparatus 20 is instructed to display the print data 27b, the print data 27b stored in the storage unit 27 is the same as the process of S141. A print data management screen 40 including a list of print data 27b associated with the user ID of the logged-in user is displayed on the display unit 22 (S181).

  Next, when the delete button 43 is pressed, the print data deleter 28c deletes the print data 27b specified in the list 41 when the delete button 43 is pressed from the storage unit 27 (S182). End the operation shown in.

  Next, the operation of the image forming apparatus 20 in the case of deleting the print data 27 b stored in the storage unit 27 when the print data is newly received, that is, the old print data will be described.

  FIG. 10 is a flowchart of the operation of the image forming apparatus 20 when the print data 27b stored in the storage unit 27 is deleted when the print data is newly received.

  When the request transmitted from the computer 30 in S122 is received through the communication unit 26, the print data deletion means 28c of the image forming apparatus 20 executes the operation shown in FIG.

  As shown in FIG. 10, the print data deletion unit 28c receives the print data received via the communication unit 26 together with the request transmitted from the computer 30 in S122, that is, the user ID associated with the new print data. Only all old print data associated with the same user ID are considered as deletion candidates (S201). Here, the user ID associated with the print data received through the communication unit 26 together with the request transmitted from the computer 30 in S122 is the request transmitted from the computer 30 in S122 and the communication with this request It is included in any of the print data received via the unit 26.

  After the process of S201, the print data deleting unit 28c determines whether there is the old print data of the deletion candidate (S202).

  If the print data deletion means 28c determines that there is a deletion candidate old print data in S202, the request time is the difference between the request time of the new print data and the request time of the new print data among the current deletion candidate old print data. Only all old print data are left as deletion candidates (S203). Here, the request time of the print data received through the communication unit 26 together with the request transmitted from the computer 30 in S122 corresponds to the request transmitted from the computer 30 in S122 and through the communication unit 26 with this request. It is included in any of the received print data.

  After the processing of S203, the print data deletion unit 28c determines whether there is the old print data of the deletion candidate (S204).

  If the print data deletion means 28c determines that there is a deletion candidate old print data in S204, all the old print data including the same file as the file included in the new print data among the current deletion candidate old print data A file identification process (see FIG. 11) for leaving only as a deletion candidate is executed (S205).

  FIG. 11 is a flowchart of the file identity determination process shown in FIG.

  As shown in FIG. 11, the print data deleting unit 28c targets only one old print data not yet targeted among the current print candidate deletion candidates (S221).

  Next, the print data deletion unit 28c determines whether the name of the file included in the new print data is the same as the name of the file included in the current target old print data (S222).

  If the print data deletion unit 28c determines that the print data deletion unit 28c is not the same in S222, both the name of the file included in the new print data and the name of the file included in the old print data of the current target Is judged whether it is a numerical value (S223).

  If the print data deleting means 28c determines that the last eight digits or more are a numerical value in S223, the name of the file included in the new print data is the value excluding the request time of the new print data, and is included in the old print data It is determined whether the file name is the same as the value obtained by excluding the request time of the old print data (S224).

  If the print data deletion unit 28c determines that the print data deletion unit 28c is the same in S222 or determines that the print data deletion unit 28c is the same in S224, the current target old print data is left as a deletion candidate (S225).

  If the print data deleting unit 28c determines in S223 that the last eight digits or more are not numerical values or does not determine that they are not the same in S224, the current target old print data is excluded from deletion candidates (S226).

  After the process of S225 or S226, the print data deleting unit 28c determines whether there is any old print data not yet targeted among the old print data of the current deletion candidate (S227).

  If it is determined in S227 that there is old print data not yet targeted among the old print data of the current deletion candidate, the print data deletion means 28c executes the processing of S221.

  If the print data deletion unit 28c determines in S227 that there is no old print data not yet targeted among the current print candidate deletion candidates, the file identification processing shown in FIG. 11 ends.

  As shown in FIG. 10, after the file identification process in S205, the print data deletion unit 28c determines whether there is old print data as a deletion candidate (S206).

  If it is determined in S202, S204 or S206 that the old print data of the deletion candidate does not exist, the print data deletion means 28c ends the operation shown in FIG.

  If the print data deletion means 28c judges that the old print data of deletion candidate exists in S206, after deleting the old print data of the current deletion candidate from the storage unit 27 (S207), deletion of the print data 27b is sent to the computer 30. After notification (S208), the operation shown in FIG. 10 is ended.

  Preferably, the notification in S208 includes information for identifying the print data 27b deleted in S207. For example, the print data deletion unit 28c sends the name of the file included in the print data 27b deleted in S207, the print setting information included in the print data 27b, and the request time of the print data 27b to the notification in S208. May be included.

  As described above, the image forming apparatus 20 specifies the new print data as the print data newly received by the communication unit 26 and the old print data as the print data 27 b already stored in the storage unit 27. When all the plurality of conditions are satisfied (S201 to S206), the old print data is deleted (S207), so deletion of the print data 27b stored in the storage unit 27 can be facilitated.

  Image forming apparatus 20 includes the condition that the user associated with the new print data and the user associated with the old print data are identical, the file included in the new print data, and the old print data. Even if all the conditions that the file is identical are satisfied, the difference between the request time of the new print data and the request time of the old print data is not within a specific time (NO in S204), the old Since the print data is not deleted, the print data 27b for a plurality of times can be stored in the storage unit 27 when the print data of the same file is intentionally sent a plurality of times by the same user, which is convenient. It can be improved.

  When the file name included in the print data includes the request time of the print data, the image forming apparatus 20 removes the request time of the new print data from the file name included in the new print data, and the old print Because the file name included in the data is compared with the value obtained by removing the request time of the old print data from the file name (S224), it is determined whether the file included in the new print data and the file included in the old print data are identical. It is possible to judge appropriately.

  The image forming system of the present invention is configured by an image forming apparatus in the present embodiment. However, the image forming system of the present invention may be configured by the image forming apparatus and at least one other electronic device. For example, the image forming system of the present invention may be configured by an image forming apparatus and a server computer provided with a storage device for storing print data.

20 Image forming apparatus (image forming system)
21 Operation unit (input device)
23 Printer (Printing Device)
26 Communication unit (communication device)
27 Storage unit (storage device)
27a image forming program 27b print data 27c file 27d print setting information 28a print data storage means 28b print execution means 28c print data deletion means

Claims (4)

A communication device for communicating,
A storage device for storing information;
An input device to which an operation is input;
A printing device for printing an image on a recording medium;
Print data storage means for storing print target files received via the communication device and print data including print setting information in the storage device;
Print execution means for causing the printing device to execute printing based on the print data stored in the storage device according to an operation input to the input device;
The new print data as the print data newly received by the communication device, and the old print data as the print data already stored in the storage device satisfy all of a plurality of specific conditions. And print data deletion means for deleting data,
The plurality of conditions are
A condition that the user associated with the new print data and the user associated with the old print data are identical;
An image forming system, comprising: a condition that the file included in the new print data and the file included in the old print data are identical.   The image forming system according to claim 1, wherein the plurality of conditions include a condition that a difference between a request time of the new print data and a request time of the old print data is within a specific time. .   The print data deletion unit determines the request time of the new print data from the name of the file included in the new print data when the request time of the print data is included in the name of the file included in the print data. When the excluded value and the value obtained by excluding the request time of the old print data from the name of the file included in the old print data are the same, the file included in the new print data, and the old print data 3. The image forming system according to claim 1, wherein it is determined that the file included in the file is the same. A communication device for communicating,
A storage device for storing information;
An input device to which an operation is input;
An image forming apparatus comprising: a printing device for printing an image on a recording medium;
Print data storage means for storing print target files received via the communication device and print data including print setting information in the storage device;
Print execution means for causing the printing device to execute printing based on the print data stored in the storage device according to an operation input to the input device;
The new print data as the print data newly received by the communication device, and the old print data as the print data already stored in the storage device satisfy all of a plurality of specific conditions. Implement a print data deletion method to delete data,
The plurality of conditions are
A condition that the user associated with the new print data and the user associated with the old print data are identical;
An image forming program comprising a condition that a file to be printed of the new print data and a file to be printed of the old print data are identical.

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