JP4189118B2 - System that mediates printing on the network - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a technique for mediating between a client connected to a network and a printing apparatus and realizing printing between the two.
[0002]
[Prior art]
Conventionally, various printers are used as computer output devices. The printer is connected to the computer in a one-to-one relationship (hereinafter referred to as “local connection”), and receives data from the computer and performs printing. A mode in which a printer is connected to a LAN (Local Area Network) and shared by a plurality of computers connected to the same LAN is also widespread.
[0003]
Furthermore, it has become possible to perform printing between any client or printing apparatus connected to the Internet by using a protocol called IPP (Internet Printing Protocol). However, the output destination is limited to a printing apparatus with a known URI (Uniform Resource Indicator).
[0004]
In any of the above-described aspects, conventionally, the connection state between the printer and the computer is usually determined in advance. In other words, conventionally, printing is usually performed at a place determined for each owner of the computer.
[0005]
[Problems to be solved by the invention]
In recent years, the portability of terminals that access the Internet, such as notebook computers and mobile phones, has improved, and it has become possible to access information regardless of location. Based on this tendency, there has been a demand for a technique that can easily perform printing from a portable terminal regardless of location. For example, there has been a demand for a technique capable of performing printing using the nearest printing apparatus as soon as information is acquired. Since printing in which the output destination can be freely selected on the network in this way greatly improves the convenience of the printing apparatus, it has been desired to be realized without being limited to use from a portable terminal.
[0006]
In order to be able to freely select an output destination on the network, there are various practical problems. Usually, print data is converted into printer-specific print control data (hereinafter referred to as “row data”) by a printer driver and supplied to the printer. In order to increase the degree of freedom when selecting a printing apparatus, it is necessary to ensure the versatility of print data supplied to the printing apparatus.
[0007]
SUMMARY OF THE INVENTION An object of the present invention is to solve these problems and to provide a technique for realizing printing with a high degree of freedom regarding selection of print contents and output destination between a client and a printing apparatus connected to a network. .
[0008]
[Means for solving the problems and their functions and effects]
In the present invention, in a mediation server connected to a network, a printing mediation method for mediating between a plurality of clients and a plurality of printing devices connected to the network and realizing printing between the two,
From the client, the method comprising: a print request including the address of the print data unit is generated to hold the print data takes the print intermediation server receives through the network,
The print mediation server that has received the print request acquires print data via the network based on the address of the print data;
Prior to printing of instructions of the print data, the print data the acquired generate simple print prediction information including the number of printed pages and processes the print mediation server, the print prediction information, Ru is displayed on the client Graphics and steps,
After the display of the simplified print prediction information, the mediation server receives, from the client, a print condition including a print target content, the number of copies to be printed, and output destination designation information for designating an output destination printing apparatus and a print instruction. Steps,
Detailed print prediction information including a printing time when the mediation server specifies a printing device that prints the print data based on the output destination designation information, and printing by the printing device is performed under the received printing conditions Displaying on the client;
After the detailed print prediction information is displayed, when the mediation server receives an instruction to execute the print from the client, the print mediation server does not depend on the model of the printing apparatus. as print data converted into the general-purpose format, and intended to comprise a step of mediating said designated print apparatus. These steps are executed by a print mediation server connected to the network . Each printing apparatus can generate and print raw data unique to the printing apparatus based on the general-purpose format. Therefore, a wide variety of printing apparatuses can be included in selectable output destinations. Convenience can be improved because the client does not have to have the function of converting to raw data.
[0009]
As a general-purpose format, for example, a PDF format can be used. In addition, a page description language such as Postscript (registered trademark) can be used. If these formats are used, there is an advantage that the layout of the printed matter can be maintained relatively easily. In addition, since these formats can convert almost all print data, there is an advantage that the present invention can be applied to a wide range of print data.
[0010]
In the printing mediation method of the present invention, it is desirable to include a step of confirming the operating status of the printing apparatus designated via the network. When the printing apparatus is not operating, printing can be stopped or the use of another printing apparatus can be recommended.
[0011]
The present invention provides a print mediation server computer (hereinafter simply referred to as a print mediation server) that implements the above-described print mediation method, a program that implements the print mediation method, or various signals that can be regarded as the same, and a recording medium that records the program It can be configured in various ways. Here, as a recording medium, a flexible disk, a CD-ROM, a magneto-optical disk, an IC card, a ROM cartridge, a punch card, a printed matter on which a code such as a barcode is printed, an internal storage device of a computer (RAM, ROM, etc. Various types of computer-readable media such as a memory) and an external storage device can be used.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
The embodiment of the present invention will be described in the following items based on examples.
A. System configuration:
B. Function block:
B1. Functional block variants:
C. Example of printing:
C1. Aspect 1: Printing email:
C2. Aspect 2: Printing a web page:
[0013]
A. System configuration:
FIG. 1 is an explanatory diagram schematically showing the configuration of a print mediation system. This is a system that performs printing by selecting an output destination flexibly via the Internet. Connected to the Internet INT are a server SVA that provides content such as Web pages, a server SV that constructs a print mediation system, printers PRT1 and PRT2, a client computer CC1, and the like. These devices can exchange information via a network. Here, for convenience of explanation and illustration, only a few devices are shown, but as is well known, countless servers, printers, and clients are connected to the Internet. The Internet INT can also be accessed from the mobile phone CP. The cellular phone CP that can access the Internet can perform almost the same function as the client computer.
[0014]
The server SV is configured to function as a print mediation system in the present embodiment. As shown below, the server SV manages client and printer information registered in advance, and performs printing by mediating print requests between them.
[0015]
When the user issues a print request by designating any one of the printers PRT1 and PRT2 on the network from the client computers CC1 and CC2 and the mobile phone CP, the print request is once transmitted to the server SV. The server SV confirms and sets the operating status of the designated printer, and confirms whether or not the user has authority to access the printer. The server SV converts the print data designated by the client into a general format that can be printed by any printer. In this embodiment, PDF is used as a general-purpose format. When PDF format data is transmitted from the server SV to the printer, the printer driver prepared on the printer side converts the data into printer-specific control data and performs printing.
[0016]
In the following embodiment, a case is shown in which most of the functions of the mediation system are basically provided by the server SV, but it may be constructed by a distributed processing system. The application of the embodiment is not limited to the Internet, but can be applied to a relatively limited network such as a LAN or so-called personal computer communication. From this point of view, in the following description, the Internet, LAN, and the like are collectively referred to as “network”.
[0017]
B. Function block:
FIG. 2 is an explanatory diagram showing functional blocks of the mediation system. The mediation system 200 is constructed in software in the server SV. FIG. 2 also shows the printer control unit 250 and the client 5. When the printer is directly connected to the network, the printer control unit 250 is a functional block configured by software in a microcomputer built in each printer. When a printer is locally connected to a computer connected to the network, the printer control unit 250 can be built in the computer by software.
[0018]
The printer control unit 250 includes a logical printer management unit 252, a physical printer management unit 254, a data conversion unit 256, and a security module 251. The logical printer management unit 252 is a printer as a unit that handles print jobs. For example, when one document is distributed and printed by two printers, the two printers are combined to form one logical printer.
[0019]
The physical printer management unit 254 has a function of managing the operation state of each printer, for example, the remaining amount of toner and paper. The physical printer management unit 254 is provided for each printer as a machine regardless of the configuration of the logical printer.
[0020]
The data conversion unit 256 corresponds to the function of the printer driver. There is a function of converting data received from the mediation system 200 into control data unique to the printer to be controlled, that is, data representing dot on / off for each pixel. The security module 251 has functions such as data encryption and transmission / reception authentication for avoiding unauthorized access to the printer control unit 250.
[0021]
The mediation system 200 is mainly composed of a standard function unit 210, an application unit 220, a charging unit 240, and a security module 201. The standard function unit 210 provides a main function for realizing printing via the mediation system 200. The standard function unit 210 includes a data conversion unit 212, a status management unit 214, a job control unit 216, a directory service 218, an API (Application Programming Interface) 211, and a security module 202. The functions of the security modules 201 and 202 are the same as the security module 251 of the printer control unit 250.
[0022]
The data conversion unit 212 has a function of converting print data designated by the client 5 into a general-purpose format independent of the printer model. In this embodiment, PDF is used. The general-purpose format is not limited to PDF, and any format that can be handled by all printers as output destinations may be used. Multiple types of general-purpose formats may be used in combination. However, PDF has the advantage that it is easy to maintain the page layout of the document, and the advantage that almost all documents can be changed to PDF.
[0023]
The status management unit 214 has a function of monitoring the operation state of the printer. The operation state refers to the state of each printer involved in printing such as the remaining amount of ink or toner and the remaining amount of printing paper. The management target is a physical printer. The status management unit 214 performs management by communication with the physical printer management unit 254.
[0024]
The job control unit 216 has a function of managing a print job output to the printer control unit 250. As described above, an output destination printer can be arbitrarily designated on the network. In accordance with this designation, the job control unit 216 transmits a print job to each output destination and manages its history. When an instruction such as canceling a print job or changing a print mode is issued during printing, the printer that has transmitted a job corresponding to the instruction is specified, and the instruction is output to the printer. Although it is common to the so-called spooler function in that it controls the execution of a print job, it differs from the spooler in that it does not control the print data being stored, but also controls the print data that has already been sent.
[0025]
The directory service 218 has a function of managing information that identifies a user who can use the mediation system 200 and a printer that can output the information. The information regarding the user includes an identification number uniquely assigned to the user, a use password, information regarding a billing destination, and the like. Information related to the printer includes information necessary for communication with the printer. For example, information specifying a printer on the network such as a URI or an IP address is included. It also includes information about the connection method between the printer and the network, such as a dedicated line and dial-up connection.
[0026]
The application unit 220 is a functional block for providing various functions that improve user convenience. For example, it provides a function for causing the client 5 to display a screen for designating the content to be printed and the output destination printer. The display screen differs depending on whether the client 5 is a computer or a mobile phone. The application unit 220 is a functional block prepared individually according to the type of client, content to be printed, and the like.
[0027]
An API (Application Programming Interface) 211 is an interface that mediates between the application unit 220 and the standard function unit 210. It plays a role of transferring data of the application unit 220 prepared individually to the standard function unit 210 in a predetermined format. By interposing the API 211, various application units 220 can be prepared for each mediation system while applying a common module to the standard function unit 210.
[0028]
The charging unit 240 performs a charging process during printing using the mediation system 200. It is a functional block prepared individually according to the type of the client 5 and the like.
[0029]
B1. Functional block variants:
The functional blocks of the mediation system are not limited to the configuration shown in FIG. FIG. 3 is an explanatory diagram showing a modification of the functional block of the mediation system 1.
[0030]
The mediation system 1 of the modified example is provided with functional blocks of a basic function block 10, a basic service block 20, a printing service 30, a relation service 50, a navigation service 40, a directory service block 60, an authentication service block 70, and a charging service block 80. It has been. “S” in the figure indicates a security system. The printing site control service 100 corresponds to the printer control unit 250 shown in FIG.
[0031]
The basic function block 10, the directory service block 60, and the authentication service block 70 correspond to the standard function unit 210 in FIG. The basic function block 10 includes modules that provide data conversion, status management, and job control functions. The authentication service block 70 has a function of determining whether or not there is an access right to each printer.
[0032]
The basic service block 20, the printing service 30, the relation service 50, and the navigation service 40 correspond to the application unit 220 in FIG. The basic service block 20 functions as an input / output interface when the client 5 accesses the mediation system 1, particularly the basic function block 10. Although not shown in the figure, the basic service block 20 is provided with three detailed function blocks: a registration service, a basic printing service, and a status service, and the above-described functions are realized by these detailed function blocks.
[0033]
A functional block called a registration service mainly registers and manages the printer 110 and content service involved in printing using the mediation system.
[0034]
The basic printing service is a part that performs a function corresponding to an interface for actually executing printing. The basic function block 10 has a function of executing printing by controlling each module of data conversion, status management, and job control.
[0035]
The status service acquires and manages status information for maintenance management of the printer 110 that is the output destination. For example, information on consumables such as toner and printing paper of the printer 110 and information on update of replacement parts such as drums are acquired and managed, and output as necessary.
[0036]
The printing service block 30 has a function of providing advanced printing using the mediation system 1. For example, it provides advanced print control that is not realized by the basic function block 10 and the basic service block 20 such as outputting print data to a plurality of printers registered in advance at a fixed time.
[0037]
The relation service 50 has a function of acquiring and recording a printing status performed via the mediation system and providing usable statistical data. By using the statistical data obtained in this way, for example, the difference in operating rate for each printer can be grasped, and this can be used for printer maintenance management.
[0038]
The navigation service block 40 has a function of providing information that helps the user to use the mediation system 1. This corresponds to the help function in the mediation system 1. For example, it is possible to provide information regarding a printing execution method using the mediation system 1, a list of available printers and content services, and the like.
[0039]
C. Example of printing:
C1. Aspect 1: Printing email:
FIG. 4 is an explanatory diagram showing a state in which an electronic mail is printed using the mediation system. The case where the user prints an e-mail addressed to himself / herself by an operation from the mobile phone CP is illustrated. It is assumed that the printer is installed in a public place such as a store or a hotel. It is also possible to use a computer as a client.
[0040]
At the time of printing an electronic mail, a mobile phone CP, a printer PRT, a mediation system PS, a mail service RM, and a mail server MS are interposed. Each of these elements is connected to a network and can exchange data with each other.
[0041]
The printer PRT as the output destination is registered in advance in the mediation system PS, and a unique identification number is given by the mediation service. In the example of FIG. 4, the identification number of the printer PRT is “1111”. This identification number is a code set regardless of information specifying the printer PRT on the network, for example, an IP address, a URI, or the like. Since the IP address, URI, etc. of the printer PRT are kept secret from the user, unauthorized access can be avoided.
[0042]
The brokerage system PS and the mail service RM may be provided by different vendors. It suffices if both are associated in advance. The mail service RM provides functions necessary for printing using the mediation system PS as part of the provided service.
[0043]
An e-mail printing execution method will be described with reference to FIGS. 5 and 6 are explanatory views showing the first half of an e-mail print sequence. 7 and 8 are explanatory diagrams showing examples of interfaces.
[0044]
First, the user accesses the mail service RM from the mobile phone CP (communication Cm1 in FIG. 4). The mail service RM accesses the mail server MS that accumulates e-mails, and displays items such as a sender, a subject, etc. on the mobile phone regarding the e-mail addressed to the user (communication Cm2 in FIG. 4). The user selects an electronic mail to be printed from the displayed subject list and transmits it to the mail service RM (see step st1 in FIG. 5).
[0045]
The left side of FIG. 7 shows an example of an interface for selecting an e-mail. An e-mail list is displayed together with a check box on the display unit DISP of the mobile phone CP. In this example, it is displayed that four mails of Mail1 ·· Mail4 have arrived. The user operates the cursor key of the cellular phone CP and puts a check mark in the check box of the email requesting printing. Here, a case where a check mark is added to two of Mail 2 and Mail 4 is illustrated. In the e-mail list display, as shown in FIG. 7, a “print” button is also displayed. The user can send a mail selection result to the mail service RM by placing a check mark on an e-mail requesting printing and then moving the cursor to the “print” button and pressing this button. The interface is merely an example, and various interfaces that realize two functions, that is, a function of selecting an electronic mail to be printed and a function of determining a selection result and transmitting it to the mail service RM can be applied.
[0046]
As shown in FIG. 5, when the mail service RM receives the mail selection result, the mail service RM accesses the mail server MS by the communication Cm2 shown in FIG. 4 and acquires the text data of the selected electronic mail (in FIG. 5). Steps st2 and st3).
[0047]
Next, the mail service RM transfers the data of the electronic mail to be printed to the mediation system PS by the communication Cm3 in FIG. 4 (step st4 in FIG. 5). Based on information such as the amount of print data, the mediation system PS approximates the number of print pages, cost, required time, etc., and sends it back to the mail service RM as simple print prediction information (step st5 in FIG. 5).
[0048]
The mail service RM displays the simple print prediction information received from the mediation system PS on the mobile phone CP (step st6 in FIG. 5). A display example of the simple print prediction information is shown on the right side of FIG. Here, the case where the print page, the cost, and the required time are displayed for each electronic mail designated by the user is illustrated.
[0049]
When executing printing, the user gives an instruction to start printing (step st7 in FIG. 5). As shown in FIG. 7, together with the simple print prediction information, an “execute” button is displayed on the display unit DISP, and an execution instruction can be given by moving the cursor here and pressing this button.
[0050]
The execution instruction made by the user is transmitted to the mediation system PS via the mail service RM by the communications Cm1 and Cm3 in FIG. 4 (step st7 in FIG. 5). At the same time, the print data, that is, the text of the electronic mail and the attached file are transmitted from the mail service RM to the mediation system PS. By this instruction, the mail service RM completes communication with the mobile phone CP. The subsequent communication is performed between the communication Cm4 in FIG. 4, that is, between the mobile phone CP and the mediation system PS.
[0051]
When receiving the print start instruction, the mediation system PS displays a standard menu related to printing on the mobile phone CP (step st8 in FIG. 5). An example of a standard menu is shown on the left side of FIG. In the standard menu, printing-related conditions such as content to be printed, the number of copies to be printed, and an output destination printer can be designated. When the “Printer No.” menu is selected, a box IP for inputting an identification number assigned to the output destination printer is displayed. In the box IP, an identification number “1111” assigned to the output printer PRT is input. When the user presses the “Send” button, the printer identification number is sent to the intermediary system PS by communication Cm4 in FIG. 4, and the output printer can be designated (step st9 in FIG. 5).
[0052]
In the mediation system PS, an identification number of the printer PRT and an IP address or URI are registered in association with each other. This attribute information is managed by the directory service 218 described above with reference to FIG. The mediation system PS obtains the operating state of the designated printer PRT and, when it determines that printing is possible, calculates detailed print prediction information when printing is performed under the designated printing conditions, as shown in FIG. The contents are displayed on the cellular phone CP using the communication Cm4 (step st10 in FIG. 5).
[0053]
After confirming the displayed print prediction information, the user instructs execution of printing (step st11 in FIG. 6). In this embodiment, execution of printing is instructed by inputting a user-specific password. An interface for inputting a password is illustrated in the center of FIG. As shown in the figure, after the cost and required time are displayed as detailed print prediction information, a box for inputting a password is displayed. The user inputs his / her password and presses a transmission button to transmit data to the mediation system PS.
[0054]
The user password is registered and managed in advance by the directory service 218. When the brokerage system PS refers to this information and confirms that the password is authentic and has the authority to access the designated printer PRT, it displays a print start screen on the mobile phone CP ( Step st12 in FIG. In parallel, the mediation system PS transmits predetermined banner data prepared in PDF format, that is, advertisement data, to the printer PRT designated as the output destination by communication Cm5 in FIG. On the printer PRT side, the advertisement data in PDF format is converted into raw data and printing is performed (step st13 in FIG. 6). At the same time, the mediation system PS displays a message prompting the mobile phone CP to confirm whether or not a banner page has been printed (step st14 in FIG. 6). A display example is shown on the right side of FIG.
[0055]
The user confirms that the banner has been printed, and presses the “OK” button shown in FIG. 8 (step st15). Upon confirming this input, the brokerage system PS converts the e-mail data received and stored from the mail service RM into the PDF format, which is a general-purpose format, and then uses the communication Cm5 in FIG. To the printer PRT (step st16 in FIG. 6). PDF format data is converted to raw data on the printer PRT side and printed. When the printing of the e-mail is completed, the mediation system PS outputs the fee data required for printing to the billing destination, and ends the series of processes (step st17 in FIG. 6).
[0056]
In the above-described sequence, display of print prediction information and banner printing may be omitted. The process of converting the e-mail into the PDF format may be executed at any timing from when the mediation system PS receives the data until it is output to the printer PRT.
[0057]
C2. Aspect 2: Printing a web page:
FIG. 9 is an explanatory diagram showing a state of printing a Web page. The case where a user prints a Web page being viewed on a portable computer PC has been illustrated. Assume that the output printer is installed in a public place.
[0058]
In the aspect 2, the computer PC, the printer PRT, the mediation system PS, and the web server WS that provides data of the web page being browsed are interposed. Each of these elements is connected to a network and can exchange data with each other.
[0059]
The user can download data from the Web server WS to the computer PC by communication Cm21 in FIG. 9 and browse the Web page with a browser. When the user desires to print a web page, the URL of the mediation system PS is input to the browser, and the web page of the mediation system is accessed.
[0060]
FIG. 10 is an explanatory diagram illustrating an example of a Web page provided by the mediation system. Corresponds to an interface for specifying printing conditions. The user specifies the content by inputting the URL of the Web page to be printed in the print data box.
[0061]
The “net printing mediation site” also has an input box for designating a printer as an output destination. Here, as in the case of aspect 1, the printer identification number is entered.
[0062]
When the “print start” button is clicked after designating the print condition including the output destination, the print condition designated by the user is transmitted to the intermediary system PS by communication Cm23 in FIG. Based on the URL included in the print data, the mediation system PS accesses the Web server WS by the communication Cm22 in FIG. 9 and acquires the data of the Web page to be printed. This function is provided by the application unit 220 of the mediation system. The subsequent sequence is the same as in the first aspect. In the second embodiment, the print instruction by the computer PC has been described as an example, but a mobile phone may be used as a client.
[0063]
According to the mediation system described above, printing between the client and the printer on the Internet can be realized without knowing the URI or IP address of the printer that is the output destination. By installing a large number of printers registered in the mediation system in a public place, it is possible to provide an environment in which printing can be performed regardless of the place. In this embodiment, print data is converted into a general-purpose format, that is, PDF, and then the print data is mediated. Therefore, mediation of printing can be easily realized without standardizing the printer models.
[0064]
As mentioned above, although the various Example of this invention was described, it cannot be overemphasized that this invention is not limited to these Examples, and can take a various structure in the range which does not deviate from the meaning. For example, the above control processing may be realized by hardware in addition to software.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram schematically showing a configuration of a print mediation system.
FIG. 2 is an explanatory diagram showing functional blocks of an intermediary system.
FIG. 3 is an explanatory diagram showing a modification of the functional block of the mediation system 1;
FIG. 4 is an explanatory diagram showing a state in which an e-mail is printed using a mediation system.
FIG. 5 is an explanatory diagram showing an e-mail print sequence;
FIG. 6 is an explanatory diagram showing an e-mail print sequence.
FIG. 7 is an explanatory diagram illustrating an example of an interface.
FIG. 8 is an explanatory diagram illustrating an example of an interface.
FIG. 9 is an explanatory diagram showing a state of printing a Web page.
FIG. 10 is an explanatory diagram illustrating an example of a Web page provided by the mediation system.
[Explanation of symbols]
5 ... Client 10 ... Basic function block 20 ... Basic service block 30 ... Printing service block 40 ... Navigation service block 50 ... Relation service 60 ... Directory service block 70 ... Authentication service block 80 ... Billing service block 100 ... Printing site block Control service 110 ... Printer 200 ... Mediation system 201, 202 ... Security module 210 ... Standard function unit 211 ... API
212 ... Data conversion unit 214 ... Status management unit 216 ... Job control unit 218 ... Directory service 220 ... Application unit 240 ... Billing unit 250 ... Printer control unit 251 ... Security module 252 ... Logical printer management unit 254 ... Physical printer management unit 256 ... Data converter

Claims (9)

In a print mediation server connected to a network, a print mediation method for mediating between a plurality of clients and a plurality of printing devices connected to the network and realizing printing between the two,
From the client, the method comprising: a print request including the address of the print data unit is generated to hold the print data takes the print intermediation server receives through the network,
The print mediation server that has received the print request acquires print data via the network based on the address of the print data;
Prior to printing of instructions of the print data, the print data the acquired generate simple print prediction information including the number of printed pages and processes the print mediation server, the print prediction information, Ru is displayed on the client Graphics and steps,
After the display of the simplified print prediction information, the mediation server receives, from the client, a print condition including a print target content, the number of copies to be printed, and output destination designation information for designating an output destination printing apparatus and a print instruction. Steps,
Detailed print prediction information including a printing time when the mediation server specifies a printing device that prints the print data based on the output destination designation information, and printing by the printing device is performed under the received printing conditions Displaying on the client;
After the detailed print prediction information is displayed, when the mediation server receives an instruction to execute the print from the client, the print mediation server does not depend on the model of the printing apparatus. A print mediation method comprising: mediating to the designated printing device as print data converted into a general-purpose format.   The print mediation method according to claim 1, wherein the general-purpose format is a PDF format. The printing mediation method according to claim 1,
Detailed print prediction information including a printing time when the mediation server specifies a printing device that prints the print data based on the output destination designation information, and printing by the printing device is performed under the received printing conditions Is displayed on the client,
Checking the operating status of the designated printing device via the network,
In the step of mediating the print data converted into the general-purpose format to the printing device, a print mediation method of mediating the print data to the printing device when it is determined that printing is possible from the confirmed operating state. A print mediation server computer that mediates between a plurality of clients and a plurality of printing apparatuses connected to a network and realizes printing between the two,
An input unit for inputting a print request including an address of the print data generated by the apparatus holding the print data from the client via the network;
Obtaining means for obtaining print data via the network based on an address of the print data;
Prior to printing of instructions of the print data, processes the print data the acquired generate simple print prediction information including the number of printed pages, and hand stage the print prediction information, Ru is displayed on the client,
Means for receiving, after the display of the simplified print prediction information, a print condition and a print instruction including output destination designation information for designating a content to be printed, the number of copies, and an output destination printing apparatus from the client;
Based on the output destination designation information, a printing device that prints the print data is specified, and detailed print prediction information including a printing time when printing by the printing device is performed under the received printing conditions is sent to the client. Means for displaying;
After the display of the detailed print prediction information, when receiving the print instruction execution from the client, as the print data by converting the print data to which the acquired general-purpose format which does not depend on the model of the printing apparatus, the designated A print mediation server computer comprising: a job management unit that mediates to a printed printing apparatus.   5. The print mediation server computer according to claim 4, wherein the general-purpose format is a PDF format. The print mediation server computer according to claim 4,
Detailed print prediction information including a printing time when the mediation server specifies a printing device that prints the print data based on the output destination designation information, and printing by the printing device is performed under the received printing conditions A status monitoring unit for confirming the operating status of the designated printing apparatus via the network when the client is displayed on the client ,
A print mediation server computer that mediates the print data to the printing device when the job management unit determines that printing is possible from the confirmed operating state. A recording medium in which a program for causing a server computer to realize a function of mediating between a plurality of clients and a plurality of printing apparatuses connected to a network is recorded in a computer-readable manner,
From the client, a function of the print request including the address of the print data unit is generated to hold the print data the server computer takes received via the network,
A function of acquiring print data via the network based on an address of the print data by a server computer that has received the print request ;
Wherein prior to the instruction of the indicia data printing, the server computer generates a simple print prediction information including the number of printed pages by processing the print data said acquired, the print prediction information, Ru machine is displayed on the client Noh and
A function in which the server computer receives, from the client, printing conditions and printing instructions including output destination designation information for designating a content to be printed, the number of copies, and an output destination printing apparatus after the simple print prediction information is displayed. When,
Detailed print prediction information including a printing time when the server computer specifies a printing apparatus that prints the print data based on the output destination designation information, and printing is performed by the printing apparatus under the received printing conditions. A function of displaying the client on the client,
After the display of the detailed print prediction information, the server computer does not depend upon instructions received for the execution of printing from the client, the print data to which the print intermediation server has the acquired model of the printing device universal as print data converted into the format, a recording medium recording a program for Ru to realize a function to mediate the designated printing device.   The recording medium according to claim 7, wherein the general-purpose format is a PDF format. Further , based on the output destination designation information, the mediation server specifies a printing device that prints the print data, and includes detailed print prediction including a printing time when printing by the printing device is performed under the received printing conditions When displaying information on the client, record a program that realizes a function of confirming the operating status of the designated printing device via the network;
The recording medium according to claim 7, wherein the function of mediating to the printing apparatus has a function of mediating the print data to the printing apparatus when it is determined that printing is possible from the confirmed operating state.

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