JP2010277463A - Printing system and intermediating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase the speed of image output in a printing system which temporarily transmits print data generated by a user's terminal to an intermediating device, then selects a printer which actually makes printing, and prints an image of the print data with the selected printer. <P>SOLUTION: The intermediating device 3 in the printing system 1 constituted by connecting a terminal 2, a plurality of printers 4 having an image output part, and the intermediating device 3 receiving and storing the print data from the terminal 2 and transmitting the print data to the printers 4 obtains correction data according to the peripheral environment of the printer 4 from the printer 4 after receiving the print data, converts the print data using the obtained correction data, creates data for an image output part, and stores the created data for the image output part. According to the selection of the printer 4 by the terminal 2, the data for the image output part stored for the printer 4 is transmitted to the printer 4. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention temporarily transmits print data generated at a user terminal to an intermediary device connected to a plurality of printing devices, and then selects a printing device that actually performs printing. The present invention relates to a printing system and an intermediary device for printing an image.

  As a printing system, a user terminal that generates print data is connected to a plurality of printing apparatuses via a predetermined communication medium, and when printing data is output, the printing apparatus that causes the terminal to output the print data There is a system that directly transmits the printing system. Instead of this printing system, a printing system shown in FIG. 9 has been proposed.

9 includes a terminal 101, an intermediary device 102, and a plurality of printing devices 103 connected via a network N.
When a desired image is printed by the printing system 100, as shown in FIG. 10, the user uses the terminal 101 to select image data to be printed and set printing conditions, and to transmit to the mediation apparatus 102. An instruction is given (step S101). The terminal 101 converts the selected image data into PDL (Page Description Language) data by a printer driver, and transmits the PDL data and printing condition information to the mediation apparatus 102. The mediation apparatus 102 stores the received PDL data and printing condition information in a predetermined storage unit (step S102).

  Thereafter, when the user selects a printing device 103 that actually performs printing from among the plurality of printing devices 103 using the terminal 101 (step S103), the selected printing device 103 receives the PDL from the mediation device 102. Data and printing condition information are read out, PDL data is subjected to RIP (Raster Image Processor) processing based on the printing condition information (step S104), and the obtained raster image data (RGB data) is placed on a designated medium such as paper. An image is output (step S105).

  In this printing system 100, instead of the above-described method, for example, only the PDL data is first transmitted and stored in the mediation apparatus 102, and the printing conditions are selected later together with the printing destination at the terminal 101, and the selected printing is performed. The previous printing apparatus 103 can also output an image of PDL data. In any method, in the printing system 100, the RIP processing of the PDL data is performed by the selected printing apparatus 103 after selecting the printing destination.

  Since the output image of the printing apparatus changes with changes in the state of the printing apparatus (for example, temperature and humidity), correction is performed when PIP data is subjected to RIP processing in order to obtain a good quality output image. (For example, refer to Patent Document 1). In the printing apparatus of Patent Document 1, environmental data such as temperature and humidity when the correction information (calibration table) is created is stored, and when actual printing is performed, Humidity is compared with that at the time of creation of correction information, waiting for the periphery of the printing apparatus to be in the same environment, and printing is automatically executed when the environment is the same.

JP 2003-330648 A

In the printing system 100 described with reference to FIGS. 9 and 10, as described above, when printing, the PDL data output from the terminal 101 is stored as it is in the mediation device 102, and the actual printing destination printing device is selected. The selected printing apparatus 103 performs RIP processing, and then outputs an image. For this reason, it is necessary to wait at least the time for the RIP processing in the printing destination printer 103 until the image output is obtained after selecting the printing destination printing device. This is an obstacle especially when the user wants to obtain an image output immediately.
Patent Document 1 does not disclose or suggest this problem or technical means for solving the problem.

  The present invention has been made in view of the above situation, and once the print data generated at the user's terminal is transmitted to the intermediary device, the printing device that actually performs printing is selected and selected. An object of the present invention is to speed up image output in a printing system in which an image of print data is printed by a printing apparatus.

  In order to solve the above problems, a first technical means of the present invention includes a terminal for generating print data, a plurality of printing apparatuses having an image output unit, and receiving and storing print data from the terminal. An intermediary device in a printing system connected to an intermediary device that transmits to the printing device, and after receiving the print data, obtains correction data according to the surrounding environment of the printing device from the printing device, Using the acquired correction data, the print data is converted, and an acquisition conversion unit that generates image output unit data of the printing apparatus, and the image output unit data generated by the acquisition conversion unit are stored. An output data storage unit, and in response to the selection of the printing device by the terminal, the image output stored in the output data storage unit for the printing device. The parts data is obtained by and transmits to the printing apparatus.

  According to a second technical means of the present invention, the first technical means includes a usage history information storage unit that stores usage history information of the plurality of printing apparatuses, and the acquisition conversion unit is based on the usage history information. The order of conversion processing for the print data to be executed for the printing apparatus is determined.

  According to a third technical means of the present invention, in the second technical means, the acquisition conversion unit determines the order based on a use frequency of the printing apparatus indicated by the use history information. .

  According to a fourth technical means of the present invention, in the second technical means, the acquisition conversion unit determines the order based on the most recent use date and time of the printing apparatus indicated by the use history information. It is.

  According to a fifth technical means of the present invention, an intermediary device according to any one of the first to fourth technical means, a terminal for generating print data, and a printing apparatus having an image output unit are connected via a network. When the image output unit data is received from the intermediary device when the printing device is selected as a printing destination via the terminal, the image output unit data is received based on the received image output unit data. The image output is performed.

  According to a sixth technical means of the present invention, in the fifth technical means, the printing apparatus calculates a correction data calculation unit that calculates the correction data, an environment information acquisition unit acquires peripheral environment information of the printing apparatus, And an environment information storage unit for storing the surrounding environment information when the correction data is calculated, and the current surrounding environment information has changed from the surrounding environment information at the time of the previous correction data calculation. Sometimes, the correction data calculation unit recalculates the correction data, transmits recalculation information to the mediation device, and the mediation device uses the received recalculation information to obtain the correction data that has already been acquired. Updating, and the acquisition conversion unit performs the acquisition of the correction data and the conversion process again to re-create the image output unit data.

  According to the present invention, the intermediary device converts print data such as PDL data (for example, RIP processing) and develops it into image output unit data such as a raster image, so that the user selects the print destination print device. Since the time from image output to image output can be shortened, image output can be obtained quickly. Furthermore, since the correction data is acquired from the printing apparatus at the time of printing, the quality of the output image can be maintained regardless of the surrounding environment of the printing apparatus.

It is a figure which shows the example of 1 structure of the printing system of this invention. FIG. 2 is a block diagram illustrating a configuration example of an intermediary device that configures the printing system of FIG. 1. FIG. 2 is a block diagram illustrating a configuration example of a printing apparatus that configures the printing system of FIG. 1. It is a figure explaining an example of the correction data handled with the printing system of this invention. 3 is a flowchart for explaining processing on the mediating apparatus side when printing is performed in the printing system of FIG. 1. 3 is a flowchart for explaining processing on the printing apparatus side when printing is performed in the printing system of FIG. 1. An example of processing performed in the printing apparatus when the printing apparatus calculates correction data every time the surrounding environment of the apparatus changes will be described. An example of processing performed in the mediation device when the printing device calculates correction data every time the surrounding environment of the device changes will be described. It is a figure explaining the example of the conventional printing system. It is a flowchart explaining this process, if it prints with the conventional printing system.

  The printing system of the present invention will be described with reference to FIGS. FIG. 1 is a diagram illustrating a configuration example of the printing system of the present invention, FIG. 2 is a block diagram illustrating a configuration example of an intermediary device that configures the printing system of FIG. 1, and FIG. 3 is a block diagram illustrating the printing system of FIG. FIG. 4 is a block diagram illustrating a configuration example of the printing apparatus to be configured, and FIG. 4 is a diagram illustrating an example of correction data handled by the printing system of the present invention.

The printing system of the present invention comprises a terminal 2 used by a user, an intermediary device 3, and a plurality of printing devices 4 connected via a network N, as exemplified by reference numeral 1 in FIG. Note that the printing system of the present invention may include a plurality of terminals.
The terminal 2 is a personal computer having an output unit (not shown) such as a liquid crystal display, for example, and image data to be printed is selected via an input unit such as a keyboard or a mouse. The selected image data is converted into PDL data that can be printed by the printing apparatus 4 by the printer driver of the terminal 2.

  Also, which of the plurality of printing apparatuses 4 performs printing, that is, the printing destination printing apparatus 4 is selected via the terminal 2. In addition to the printing destination, printing conditions (color / monochrome, paper size, number of printed sheets, etc.) are also selected via the terminal 2.

  When printing is performed by the printing system 1, the terminal 2 transmits the PDL data obtained by converting the selected image data based on the user's instruction and the printing condition information indicating the printing condition via the network N 3. Send to. Thereafter, a print instruction for the transmitted PDL data is issued via the network N based on the selection of the print destination by the user.

The intermediary device 3 is constituted by, for example, a general-purpose computer, and as shown in FIG. 2, a print data input unit (reception unit) 31, a correction data acquisition unit 32, a RIP processing unit 33, and an image data transfer unit 34. And a storage unit 35.
The print data input unit 31 receives the PDL data and the print condition information from the terminal 2, and stores them in the PDL data storage unit 35a and the print condition information storage unit 35b of the storage unit 35, respectively.
The correction data acquisition unit 32 acquires correction data (correction parameters) used for the RIP processing in the RIP processing unit 33 from the printing apparatus 4. An example of the correction data will be described later.

The RIP processing unit 33 performs RIP processing on the PDL data based on the acquired correction data and printing condition information, and stores the PDL data as RIP processed data in the RIP processed data storage unit 35c.
The image data transfer unit 34 transmits the RIP processed data to the printing apparatus 4 that is the printing destination selected by the user. As will be described later, the image data transfer unit 34 can also transmit PDL data to the printing apparatus 4 that is the printing destination.
The storage unit 35 stores various data. The PDL data storage unit 35a that stores PDL data, the printing condition information storage unit 35b that stores printing condition information, and the RIP processed data that stores RIP processed data. It has a storage unit 35c and a user usage history storage unit 35d described later.

  When the intermediary device 3 receives the PDL data and the print condition information from the terminal 2 during printing in the printing system 1, the mediation device 3 uses the correction data acquisition unit 32 and the RIP processing unit 33 to acquire correction data for RIP processing. Then, RIP processing of PDL data based on the correction data is started. From which printing device 4 correction data acquisition and RIP processing are started, that is, the order in which correction data acquisition and RIP processing are performed is the usage history of the printing device of the user who sent the PDL data or the source of the PDL data It is preferable to determine according to the usage history of the printing device of the terminal.

  Thus, in order for the correction data acquisition unit 32 and the RIP processing unit 33 to determine the order, usage history information indicating the usage history of the user's printing apparatus is required. The usage history information is stored in the user usage history storage unit 35d of the storage unit 35, and is managed by, for example, a control unit that controls the entire mediating apparatus 3.

  The intermediary device 3 uses the image data transfer unit 34 in response to a transmission request from the printing device 4 selected as the printing destination after the acquisition of the correction data and the RIP process, and for the printing device. The RIP processed data is transmitted to the corresponding printing device 4. The RIP processing and the like are not performed for all the printing apparatuses at once, but are performed in order as described above. Therefore, when there is a transmission request from the printing apparatus 4, the RIP process for the printing apparatus 4 is performed. There may not be. In this case, the mediation device 3 uses the image data transfer unit 34 to transmit the PDL data to the printing device 4 instead of the RIP processed data.

  The printing apparatus 4 is constituted by, for example, a printer having an electrophotographic image forming (printing) function. As shown in FIG. 3, an image output unit 41, a correction data determination unit 42, an environment detection unit 43, A data discrimination unit 44 and a RIP processing unit 45 are included.

The image output unit 41 outputs an image on a designated medium such as paper based on input data (image output unit data) such as RIP processed data.
The correction data determination unit 42 determines correction data. The correction data is, for example, a gamma table used for gamma correction. When the RIP process is performed by the mediating apparatus 3 described above, a color that accurately corresponds to the input value to the image output unit 41 is reproduced on the image output by the image output unit 41 (linear as shown in FIG. 4A). In order to obtain gradation characteristics), gamma correction according to the actual gradation characteristics of the image output unit 41 of each printing device 4 is performed.

  In order to acquire the gamma table used for this gamma correction as correction data, the correction data determination unit 42 does not perform gamma correction (or performs gamma correction using a linear gamma table with γ = 1), for example. Image data is input to the image output unit 41 to output a test chart, and the output density corresponding to the input value is actually measured with a densitometer. With this measurement, for example, the gradation characteristics of the image output unit 41 when the gamma correction is not performed can be obtained as shown in FIG. 4B. A gamma table as shown in FIG. 4C, which is an inverse function of FIG. 4B, is calculated (determined) as correction data so as to be output with gradation characteristics. The calculated correction data is stored in a storage unit (not shown).

  Calculation of correction data by the correction data determination unit 42 is performed, for example, when the printing apparatus 4 is installed or activated. Further, it is preferable that the determination is made when it is determined that the surrounding environment of the printing apparatus 4 has changed since the previous correction data was calculated based on the detection result of the environment detection unit 43.

  The environment detection unit 43 is for acquiring information about the surrounding environment of the printing apparatus 4 (peripheral environment information) such as temperature information and humidity information used for determining whether or not the surrounding environment has changed. It corresponds to “environmental information acquisition means” and is constituted by, for example, a temperature sensor and a humidity sensor. The timing of acquiring the surrounding environment information is arbitrary, for example, every predetermined period. Further, in order to determine whether or not the surrounding environment of the printing apparatus 4 has changed since the previous correction data was calculated, it is acquired when the correction data is calculated out of the surrounding environment information acquired by the environment detection unit 43. Are stored in a predetermined storage unit (not shown). The criterion for determining whether or not the surrounding environment has changed is, for example, whether or not the temperature value around the printing apparatus 4 has become a predetermined value or less since the previous correction data was calculated.

  The data determination unit 44 determines whether the data received together with the printing condition information from the mediation device 3 is PDL data or RIP processed data. When the received data is not RIP processed data but PDL data, the RIP processing unit 45 performs RIP processing based on the printing condition information and the correction data received from the mediation device 3.

As described above, since the terminal 2 issues a print instruction to the print destination selected by the user via the network N, the corresponding printing apparatus 4 sends the print condition information from the mediation apparatus 3 together with the print condition information in response to the print instruction. Get the data to print. Then, the data determination unit 44 determines whether the acquired data is RIP processed data. If the acquired data is RIP processed data, the image output unit 41 outputs an image on a designated medium such as paper as it is.
As described above, in the printing system 1, since the RIP process of the PDL data is performed by the mediation apparatus 3, an image can be output without performing the RIP process on the printing apparatus 4 side after the user selects the printing destination. Therefore, the image output can be obtained quickly by the print destination instruction.

  In general, an output image of a printing apparatus changes with changes in the ambient temperature and humidity of the printing apparatus, and therefore, in order to maintain the quality of the output image, it is necessary to correct the output according to the change. There is. In this regard, in the printing apparatus 4 described above, the correction data determination unit 42 and the environment detection unit 43 can calculate correction data every time the surrounding environment changes, so that the quality of the output image can be maintained.

  An example of processing performed by the mediation apparatus and the printing apparatus when printing is performed by the printing system of FIG. 1 will be described with reference to FIGS. 5 and 6. 5 and 6 are flowcharts for explaining processing on the mediating apparatus side and the printing apparatus side, respectively. In the following description, it is assumed that there is one PDL data held by the mediation apparatus corresponding to the user.

When the user selects image data to be printed and selects (sets) the printing conditions via the terminal 2 (step S1), the PDL data obtained by converting the image data with the printer driver from the terminal 2, the printing condition information, Are transmitted to the mediation device 3, and the mediation device 3 that has received them stores them in the PDL data storage unit 35a and the printing condition information storage unit 35b, respectively (step S2).
Next, the intermediary device 3 reads out the usage history information indicating the usage history of the printing device from the user usage history storage unit 35d (step S3), and the usage history of the transmission source user such as PDL data is the above usage history. Based on whether it is described in the information, it is confirmed whether or not the user is a new user (step S4).

  If the user is not a new user (in the case of NO) described in the use history information for the user, the mediation device 3 has a plurality of printing devices that have a use history for the user based on the use history information. Whether or not (step S5). When there are not a plurality of printers, that is, when there is one printer (NO), the mediation device 3 acquires correction data from the only printing device that has the usage history (step S6), and advances the processing to step S8. On the other hand, when there are a plurality of printing apparatuses having usage histories (in the case of YES), correction data is acquired from the printing apparatus having the highest usage frequency among these (step S7), and the process proceeds to step 8. When correction data is acquired for a printing apparatus with a usage history, a correction data acquisition information storage unit (not shown) that correction data has been acquired for the printing apparatus is stored.

  In step S8, the mediation apparatus 3 performs RIP processing on the PDL data in the RIP processing unit 33 based on the acquired correction data and the printing condition information stored in the printing condition information storage unit 35b (step S8), and the RIP processed data. And stored in the RIP processed data storage unit 35c (step S9).

  In subsequent step S10, the intermediary device 3 refers to the correction data acquired information storage unit based on the usage history information, and whether there is a printer that has a usage history and has not acquired the correction data. (Step S10). When there is a printer that has not acquired correction data (in the case of YES), referring to the correction data acquired information storage unit based on the usage history information, the printing device 4 that has a usage history and has not acquired correction parameters. Then, correction data is acquired from the one with the highest use frequency (step S11), and the process returns to step S8. By repeating steps S8 to S11 after step S7, correction parameters are acquired in order from the printing device 4 with the higher usage frequency, and RIP processing based on the correction parameters and the like is performed on the printing device.

  In step S4, a user who is a transmission source of PDL data or the like is a new user who is not described in the usage history information about the user (in the case of YES). If there is no data for which correction data has not been acquired (in the case of NO), the printer waits in that state until there is a request for transmission of printing data from the printing apparatus 4 selected as the printing destination by the user (step S12). .

If there is a transmission request in the standby state, the image data for printing (RIPed data or PDL data) and printing condition information for the printing apparatus 4 and printing condition information are immediately transmitted to the printing apparatus 4 that is the printing destination accordingly. . On the other hand, when there is a transmission request when not in the standby state, transmission is performed in accordance with the transmission request after the step currently being executed is interrupted or after the processing of the step is completed.
When there is a transmission request, the intermediary device 3 stores in the user usage history storage unit 35d so that the usage history of the printing device of the user who has selected the printing device that is the transmission source of the transmission request is changed. Update the memory usage history information.

  In the above-described example, as a method for determining the order in which correction parameters are acquired for the printing apparatus and the order in which RIP processing is performed based on the usage history of the printing apparatus, a method of determining based on the usage frequency of the printing apparatus is employed. However, the determination method is not limited to this, and for example, a determination method based on the most recent use date and time of the printing apparatus may be used.

  While the mediating apparatus 3 operates as described above, the printing apparatus 4 first determines whether the user has selected the printing destination based on the presence / absence of a printing instruction from the terminal 2, as shown in FIG. (Step S21). If it is not selected (in the case of NO), the process returns to step S21. If the print instruction is given and the print destination is selected (YES), the data and print for the printing device 4 are sent to the intermediary device 3. A request for transmitting condition information is made and received (step S22).

  Subsequently, it is determined whether or not the received data is RIP-completed data (step S23). If the received data is RIP-completed data (in the case of YES), the image output unit 41 is used and the medium specified by the printing condition information is used. An image of RIPed data is output to (step S24). On the other hand, if the data is not RIP-completed data but PDL data (in the case of NO), the PDL data is subjected to RIP processing based on the received printing condition information and the stored correction data, and then in step S24 described above. Output on specified media.

  Hereinafter, with reference to FIGS. 7 and 8, the printing apparatus 4 includes the environment detection unit 43, and correction data is calculated every time the surrounding environment of the apparatus 4 changes. An example of processing will be described. 7 and 8 are flowcharts for explaining processing of the printing device 4 and the mediation device 3, respectively.

  For example, as illustrated in FIG. 7, when the printing apparatus 4 is activated, the environment detection unit 43 acquires the surrounding environment information of the apparatus 4 and the correction data determination unit 42 calculates correction data (step S <b> 31). The ambient environment information and the correction data are stored in a predetermined storage unit (step S32). Thereafter, the environment detection unit 43 acquires the current surrounding environment information of the printing apparatus 4 at a predetermined timing (step S33), and the acquired surrounding environment information and the surrounding environment information stored in the predetermined storage unit Based on the above, it is determined whether or not the surrounding environment of the printing apparatus 4 has changed since the correction data stored in the same manner was calculated (step S34).

  If not changed (NO), the process returns to step S33. If changed (YES), the correction data determining unit 42 recalculates correction data (step S35). Then, the recalculated correction data and the acquired ambient environment information stored in the predetermined storage unit are rewritten (step S36), and recalculation information indicating that the correction data has been recalculated is stored in the intermediary device 3. Then, return to step S33.

  On the other hand, the intermediary device 3 receives the correction data from the printing device 4 as shown in FIG. 8, for example, after step S9 in FIG. 5 or while waiting for a transmission request from the printing device 4 in step S12. It is determined whether recalculation information has been received (step S41). When the recalculation information is received (in the case of YES), it is determined whether or not the RIP processing has already been performed for the printing apparatus 4 that has transmitted the recalculation information with reference to the correction data acquired information storage unit. (Step S42). If already performed (in the case of YES), the correction data updated from the transmission source printing device 4 is acquired, the RIP process is performed again (step S43), and then the process proceeds to step S10. The process returns to the state waiting for the transmission request in step S12.

If recalculation information has not been received (NO in step S41), or if recalculation information has been received, the printing apparatus 4 that has transmitted the recalculation information has not been subjected to RIP processing. In the case of (NO in step S42), the process proceeds to step S10 as it is or returns to the state of waiting for the transmission request in step S12.
By doing so, the quality of the output image can be maintained regardless of the surrounding environment of the printing apparatus 4.

  In order to select the printing destination printing device 4 via the terminal 2, all the printing devices 4 connected to the network N may be displayed as selection targets on a display unit (not shown), or the above printing conditions Only the printing apparatus 4 having a function matching the above may be displayed on the display unit as a selection target. For this display, information of all the printing apparatuses 4 connected to the network N (which printing apparatus has which function, etc.) is required. This information is held by the terminal 2. Alternatively, the information stored in the mediation device 3 may be transmitted to the terminal 2 after the selection of the printing condition, and information on the printing device 4 that matches the printing condition.

DESCRIPTION OF SYMBOLS 1 ... Printing system, 2 ... Terminal, 3 ... Mediation apparatus, 4 ... Printing apparatus, 31 ... Print data input part, 32 ... Correction data acquisition part, 33 ... RIP processing part, 34 ... Image data transfer part, 35 ... Storage part 35a ... PDL data storage unit, 35b ... printing condition information storage unit, 35c ... RIP processed data storage unit, 35d ... user usage history storage unit, 41 ... image output unit, 42 ... correction data determination unit, 43 ... environment detection 44, data discrimination unit, 44 ... image data discrimination unit, 45 ... RIP processing unit.

Claims (6)

A printing system in which a terminal that generates print data, a plurality of printing apparatuses having an image output unit, and an intermediary apparatus that receives and stores print data from the terminal and transmits the print data to the printing apparatus are connected to each other. An intermediary device,
After receiving the print data, the correction data corresponding to the surrounding environment of the printing apparatus is acquired from the printing apparatus, the print data is converted using the acquired correction data, and the image output unit of the printing apparatus An acquisition conversion unit for creating data,
An output data storage unit for storing the image output unit data created by the acquisition conversion unit;
In accordance with selection of the printing device by the terminal, the mediating device transmits image output unit data stored in the output data storage unit for the printing device to the printing device.   A usage history information storage unit configured to store usage history information of the plurality of printing apparatuses, and the acquisition conversion unit determines an order of conversion processing for the print data to be executed for the printing apparatus based on the usage history information; The mediating apparatus according to claim 1, wherein:   The mediation apparatus according to claim 2, wherein the acquisition conversion unit determines the order based on a use frequency of the printing apparatus indicated by the use history information.   The intermediary device according to claim 2, wherein the acquisition conversion unit determines the order based on the most recent use date and time of the printing device indicated by the use history information.   An intermediary device according to any one of claims 1 to 4, a terminal that generates print data, and a printing device that includes an image output unit are connected via a network, and the printing device includes: When the image output unit data is received from the mediation apparatus when selected as a printing destination via a terminal, an image is output based on the received image output data. The printing apparatus includes:
A correction data calculation unit for calculating the correction data;
An environment information acquisition unit for acquiring the surrounding environment information of the printing apparatus;
An environment information storage unit that stores surrounding environment information when the correction data is calculated;
When the current surrounding environment information has changed from the surrounding environment information at the time of the previous calculation of the correction data, the correction data calculation unit recalculates the correction data, and sends the recalculation information to the mediation device,
The intermediary device is:
According to the received recalculation information, the already acquired correction data is updated, and the acquisition conversion unit performs the acquisition of the correction data and the conversion process again to recreate the image output unit data. The printing system according to claim 5.

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