JPH10240460A - Service providing system, and server and printer for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a service providing system, and server and printer for the same with which any specified device is prevented from being eccentrically consumed because of a little functional difference. SOLUTION: Concerning a printer system 1, plural printers 4 respectively detect various kinds of function information concerning printing at the present machine, detect various functions concerning printing at the other printer, compare the detected various function information concerning printing at the present machine with the various function information concerning printing at the other printer, adjust the function information of the present machine and send adjusted printer function information showing a function superior to the real function of the present machine to a host computer 3, and the host computer 3 prepares a printer function list based on the adjusted printer function information respectively sent out of plural printers 4 and selects one printer suitable for executing a printing job out of the printer function list.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a service providing system, a server and a printer thereof, and more particularly, to a service providing system and a server and a printer in which a specific device is not consumed unevenly due to a slight difference in functions.

[0002]

2. Description of the Related Art In a network environment in which similar services are provided by a plurality of service providing apparatuses, it is necessary to select one service providing apparatus from a plurality of service providing apparatuses. A providing system has been conventionally proposed.

[0003] As one example of a service providing system, a print system including a plurality of printers has been conventionally known. Such a print system selects one printer from a plurality of printers and provides a print service. In this print service system, unlike a simple print system in which a single word processor or computer is connected to a printer device, a print data creation source is often arranged at a distance from each printer device.

For example, LAN printers are often arranged at one or more specific places such as a printing room in an office, and have a considerable distance from a print data generator such as a workstation arranged in a living room. Is normal. Also, in the case of a print system in which the print system is connected to another LAN via a network, it is natural that the distance between them is greatly widened.

[0005] For this reason, in a conventional print system, the print data creator rarely knows in detail the individual printers constituting the system. You only know two printers. Under these circumstances, those who created the print data specified a specific printer device they knew, designated a printer, and performed printout. Problems have arisen, such as concentration and the purchase of a new printer that is not being used efficiently.

Further, when print requests are concentrated on a specific printer, it takes a long time for the printer to perform a new print operation, so that not only can a desired printed matter not be obtained quickly, but also the individual printers cannot be obtained. The load varied. For this reason, there is a problem that not only the replenishment of paper but also the execution of maintenance cannot be performed in synchronization with other printers, and the printer operator itself cannot perform planned or efficient work.

In view of the above, there has been proposed a print system in which one printer suitable for executing a print job is selected from a plurality of printers, and print data is sent to the selected printer for printing. Hereinafter, various printing systems that have been conventionally proposed will be described.

First, Japanese Patent Application Laid-Open No. 06-183105 discloses a print system for selecting a printer having a function necessary for executing a print job.

Japanese Patent Application Laid-Open No. 06-183106 discloses a printing system in which an operator displays the operating status of a printer, and the operator views the operating status to select a device that can end a print job as soon as possible.

Further, Japanese Patent Application Laid-Open No. 06-183109 discloses a print system in which a print server selects a device which can end a print job as soon as possible.

[0011]

However, according to the above-described conventional printing system, only a specific printer, that is, a printer having the highest function, is preferentially selected and used. More specifically, for example, in an environment in which there are a plurality of printers capable of performing double-sided printing and their printing speeds are slightly different, a print job requiring double-sided printing is preferentially given to the fastest duplexable device. Other two-sided printers are used only when a faster two-sided printer is unavailable during execution of a print job or failure.

In this case, there is a problem that the use frequency of the apparatus is greatly changed by a slight difference in function, and only a high-performance printer is worn out quickly.

The present invention has been made in view of the above, and an object of the present invention is to provide a service providing system in which a specific device is not unevenly consumed due to a slight difference in function, and a server and a printer thereof.

[0014]

In order to achieve the above object, a service providing system according to claim 1 is connected to each other via a transmission line, and defines a service and a condition for executing the service. A service comprising: a client for sending designated service request information to the transmission path; a plurality of service providing apparatuses for executing a service; and a server for selecting one service providing apparatus from the plurality of service providing apparatuses. In the providing system, the plurality of service providing devices include a service providing unit for performing a service, an own device function detecting unit for detecting various function information relating to a service of the own device, and various function information relating to a service of the own device. It compares it with various types of function information on services of other service providing devices, adjusts its own function information, and And adjustment service function information sending means for sending adjustment service function information indicating a function superior to the above function to the transmission path, wherein the server is requested by the service request information received via the transmission path. Function and the adjusted service function information sent from each of the plurality of service providing devices, and selects one service providing device suitable for executing the service of the service request information sent from the client. Service providing device selecting means.

According to the above configuration, in the service providing system, each of the plurality of service providing devices detects various functional information related to the service of the own device, and detects various functional information related to the detected service of the own device and other information. Comparing the function information of the service providing apparatus with the various function information of the service providing apparatus, adjusting the function information of the own apparatus, and sending the adjusted service function information indicating a function superior to the actual function of the own apparatus to the server;
The server compares the function requested by the received service request information with the adjusted service function information sent from each of the plurality of service providing devices, and performs one service suitable for executing the service of the received service request information. Since the service provider is configured to select the service provider, the service provider can report its service-related functions to the server as being superior to the actual functions without significantly affecting the service results. As a result, it is possible to prevent a specific service providing device from being unevenly consumed due to a slight difference in function of the service providing device.

According to a second aspect of the present invention, the service providing system is connected to each other via a transmission path, and sends print data including print data and print conditions for printing the print data to the transmission path. In a service providing system including a client performing printing of print data, a plurality of printers capable of printing print data, and a server for selecting one of the plurality of printers, the plurality of printers perform printing of print data. A printing unit that performs printing, a function detection unit that detects various function information related to printing of the own device, and a comparison of various function information related to printing of the own device with various function information related to printing of another printer. Adjustment printer machine that adjusts its own function information and sends out adjustment printer function information indicating a function superior to its actual function to the transmission path. Information sending means, wherein the server checks a function required for a print job received via the transmission path with adjusted printer information sent from each of the plurality of printers, and determines the print job. Printer selection means for selecting one printer suitable for execution.

According to the above configuration, in the service providing system, each of the plurality of printers detects various types of function information related to printing of the own device, and detects the various types of function information related to printing of the own device and other printers. The function adjusts the function information of its own device by comparing it with the various types of function information related to printing, and sends to the server adjusted printer function information indicating functions superior to the actual functions of its own device. Is compared with the adjusted printer function information sent from each of the plurality of printers, and one printer suitable for executing the received print job is selected. It is possible to report the printing function of the machine to the server as being superior to the actual function without significantly affecting the result. The difference in the function of printer it is possible to prevent the specific printer is consumed unevenly.

According to a third aspect of the present invention, there is provided a service providing system, wherein each of the service providing systems is connected via a transmission path, and sends print data including print data and print conditions for printing the print data to the transmission path. In a service providing system including a client performing printing of print data, a plurality of printers capable of printing print data, and a server for selecting one of the plurality of printers, the plurality of printers perform printing of print data. Printing means for performing, self-function detection means for detecting various function information related to printing of the own apparatus, other function detection means for detecting various functions related to printing of another printer, and various functions related to printing of the self apparatus The information is compared with the various types of function information related to printing of the other printer, and the function information of the own device is adjusted to be superior to the actual function of the own device. And adjusting the printer function information sending means for sending an adjustment printer function information indicating a capability to the transmission path,
Wherein the server comprises: a printer function list creating means for creating a printer function list based on the adjusted printer function information sent from each of the plurality of printers;
Printer selection means for selecting one printer suitable for executing the print job from the printer function list based on a function requested by the print job received via the transmission path.

According to the above configuration, in the service providing system, each of the plurality of printers detects various function information related to printing of its own device, and detects various functions related to printing of another printer. Adjusted printer function that compares the various types of function information related to printing of the own device with the various types of function information related to printing of other printers, adjusts the function information of the own device, and indicates a function superior to the actual function of the own device. The information is sent to the server, and the server creates a printer function list based on the adjusted printer function information sent from each of the plurality of printers, and creates a printer function list from the printer function list based on the function required in the received print job. Since the configuration is such that one printer suitable for executing the print job is selected, the own printer can be selected within a range that does not greatly affect the result of the print job. The functions related to printing can be reported to the server as being superior to the actual functions, so that it is possible to prevent a particular printer from being unevenly consumed due to a slight difference in the functions of the printer. Become.

According to a fourth aspect of the present invention, in the service providing system according to the third aspect, the other function detecting means sends a function inquiry request to another printer, and in response to the function inquiry request, sends the function inquiry request to the other printer. The printer receives a function inquiry response including various function information related to printing of another printer sent from the printer, and detects various functions related to printing of the other printer.

According to the above configuration, the printer sends a function inquiry request to another printer, and as a response,
The invention according to claim 3, wherein the function inquiry response including the various function information related to printing of another printer sent from the other printer is received to detect various functions related to printing of another printer. In addition to the effects, the printer can detect various functions related to printing of another printer by a simple method.

According to a fifth aspect of the present invention, there is provided the service providing system according to the third aspect, wherein the other function detecting means carries out carrier sense of the signal on the transmission line and outputs various kinds of function information relating to printing by another printer. Is received, and various functions related to printing by another printer are detected.

According to the above configuration, the printer carries out carrier sensing of the signal on the transmission path, receives a function inquiry response including various function information relating to printing of another printer, and detects various functions relating to printing of the other printer. Therefore, in addition to the effect of the invention described in claim 3, the printer can always detect various functions related to printing by another printer.

According to a sixth aspect of the present invention, in the service providing system according to the second or third aspect, the adjustment printer function information sending means includes a printing cost relating to printing of the own device and a printing cost of the other printer. Then, the adjusted printer function information including the information on the printing cost lower than the actual printing cost of the own device is adjusted, and the adjusted printer function information including the information of the printing cost lower than the actual printing cost of the own device is transmitted to the transmission path.

According to the above-described configuration, the printer compares the printing cost relating to the printing of its own device with the printing cost relating to the printing of the other printer, adjusts the printing cost of its own device, and adjusts the actual printing cost of its own device. It is a configuration that sends adjustment printer function information including information on the lower printing cost.
In addition to the effects of the second or third aspect of the present invention, the printing cost of the own device can be reported to the server lower than the actual printing cost. As a result, a specific printer can be notified by a slight difference in printing cost. It is possible to prevent uneven consumption.

According to a seventh aspect of the present invention, in the service providing system according to the second or third aspect, the adjustment printer function information sending means includes a print speed relating to the printing of the own device and a printing speed of the other printer. The print speed of the own device is compared with the print speed of the own device, and the adjusted printer function information including the information of the print speed better than the actual print speed of the own device is transmitted to the transmission path.

According to the above configuration, the printer compares the printing speed of its own device with the printing speed of the other printer, adjusts the printing speed of its own device, and adjusts the actual printing speed of its own device. Since the adjustment printer function information including better printing speed information is transmitted, in addition to the effect of the invention described in claim 2 or 3, the printing speed of the own device is superior to the actual printing speed. As a result, it is possible to prevent a particular printer from being consumed unevenly due to a slight difference in printing speed.

The service providing system according to claim 8 is the invention according to claim 2 or 3, wherein the adjustment printer function information sending means includes a printer related resolution and a printer related print. A configuration may be adopted in which the resolution is compared with the resolution, the adjusted printer function information including information of a resolution better than the actual resolution of the own apparatus is adjusted, and the adjusted printer function information is transmitted to the transmission path.

According to the above configuration, the printer compares the resolution of its own printing with the resolution of the other printer, and adjusts its own resolution to obtain a resolution better than the actual resolution of its own. 4. The apparatus according to claim 2, wherein the adjustment printer function information including the information of the adjustment printer is transmitted.
In addition to the effects of the described invention, the resolution of the own device can be reported to the server as being superior to the actual resolution.
As a result, it is possible to prevent a particular printer from being consumed unevenly due to a slight difference in resolution.

According to a ninth aspect of the present invention, the server sends a print job including print data and print conditions for printing the print data to the transmission path via a transmission path, and prints the print data. A server connected to a plurality of printers compares a function required in a print job received via the transmission path with adjusted printer information sent from each of the plurality of printers, and executes the print job. Printer selection means for selecting one printer suitable for the printer.

According to the above configuration, the server in the service providing system compares the function required in the received print job with the adjusted printer function information sent from each of the plurality of printers, and executes the received print job. And a server in a service providing system that can prevent a particular printer from being unevenly consumed due to a slight difference in the functions of the printer. Become.

Further, a printer according to a tenth aspect includes a client and a plurality of printers, which transmit print data including print data and print conditions for printing the print data to the transmission path via the transmission path. To select one printer from the printer connected to the server
Printing means for printing print data, self-function detecting means for detecting various function information relating to printing of the own apparatus, various function information relating to printing of the own apparatus, and various function information relating to printing of another printer Adjusting printer function information sending means for adjusting the function information of the own device and sending the adjusted printer function information indicating a function superior to the actual function of the own device to the transmission line. It is.

According to the above configuration, in the service providing system, each printer detects various function information relating to printing of its own device, and detects various function information relating to the detected printing of its own device and printing of other printers. It is configured to compare with the various function information related to the printer and adjust the function information of its own device, and send the adjusted printer function information indicating the function superior to the actual function of its own device to the server. It is possible to report the printing function of the printer to the server as being superior to the actual function without significantly affecting the result. As a result, even a slight difference in the function of the printer causes a particular printer to be biased. It is possible to provide a printer in a service providing system that can prevent the printer from being exhausted.

[0034]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS.
A preferred embodiment in which a service providing system according to the present invention is applied to a print system will be described in detail.

FIG. 1 is a diagram showing a schematic configuration example of a print system according to the present embodiment. A print system 1 shown in FIG. 1 includes a plurality of workstations (clients) 2 for sending print jobs including print data and print conditions for printing the print data, and a plurality of printers (service provision) for printing print data. (A device) 4 and a host computer (server) 3 for selecting one printer from the plurality of printers based on the transmitted print job. These workstation 2, host computer 3, and printer 4
It is connected to a communication line via a network (transmission path) 5.

The network 5 may use any of a LAN, a public line network, a dedicated line network, and the like. Also,
The communication system may be a wired system or a wireless system.

The workstation 2 includes print data corresponding to the created document and printing conditions set for printing the document (selection of an apparatus, selection of paper and a paper supply / output tray, setting of double-sided printing, number of copies, , Resolution setting, completion request time, etc.) as print jobs.
To send to.

The host computer 3 acquires the adjusted printer function information of all the printers 4 managed by itself, and creates a printer function list (hereinafter, referred to as "printer function list creation processing"). Further, the host computer 3 checks the print job sent from the workstation 2, selects the most suitable one of the printers 4, and sends the print job to the selected printer 4 (hereinafter, referred to as “print job”).
This is referred to as “printer selection processing”).

The printer 4 prints print data in accordance with a print job sent from the host computer 3. More specifically, the printer 4 converts the print content defined by the print data included in the print job into paper or the like in accordance with the print conditions (paper size, paper supply / discharge tray, both sides, number of copies, etc.) included in the print job. Print on media. When the printer 4 receives the function inquiry request, the printer 4 acquires each function information in its own printer, and transmits the adjusted printer function information obtained by adjusting its own function information to the host computer 3 (hereinafter, referred to as “the host computer 3”). Printer function response process ").

FIG. 2 is a block diagram showing a schematic configuration of the workstation 2 shown in FIG. In FIG.
The workstation 2 has an input unit 21 for inputting a character string.
And a communication unit 22 for performing data communication, and a display unit 23
And the CP that controls the entire device of the workstation 2
U24, a hard disk 25 storing various control programs for operating the CPU 24, and the like.
Disk control device 2 for reading / writing data 5
6 and a RAM 27 used as a work area for various control programs.

The input unit 21 includes a keyboard having cursor keys, numeric input keys, various function keys, and the like.
A signal for pressing a key pressed by the keyboard is output to the CPU 24.

The communication unit 22 is connected to the network 5 and performs data communication with the host computer 3 and other workstations 2 via the network 5. The display unit 23 includes a CRT, an LCD, and the like.
Display according to the display data input from the CPU 24 is performed. The display unit 23 displays necessary data when creating print data or transferring a print job or the like to the host computer 4.

The CPU 24 is a central control unit for controlling the entire apparatus in accordance with various control programs stored in the hard disk 25. The CPU 24 has an input unit 21, a communication unit 22, a display unit 23, The device 26 and the RAM 27 are connected, and control data communication, reading of application programs by accessing the memory, reading / writing of various data, inputting of data / commands, color display, and the like. Also,
The CPU 24 sends the print data input from the input unit 21 and the printing conditions of the print data to the host computer 3 via the communication unit 22 as a print job.

The hard disk 25 stores various control programs for operating the CPU 24, parameters used for the processing, and the like. These various control programs are stored in the hard disk 25 in the form of program codes readable by the CPU 27. In addition,
The storage medium is not limited to the above-mentioned hard disk, and another storage medium such as a floppy disk or a CD-ROM may be used.

The RAM 27 has a work memory for storing designated control programs, input instructions, input data, processing results, and the like, and a display memory for temporarily storing display data to be displayed on the display screen of the display unit 22. ing.

FIG. 3 is a block diagram showing a schematic configuration of the host computer 3 shown in FIG. In FIG.
The host computer 3 has an input unit 31 for inputting a character string.
, A communication unit 32 for performing data communication, a display unit 33, and a CPU 34 for controlling the entire apparatus of the host computer 3.
A hard disk 35 storing various control programs for operating the CPU 34; a disk control device 36 for reading / writing data from and on the hard disk 35; and a RAM used as a work area for various programs.
37 and the like.

The input unit 31 includes a keyboard having cursor keys, numeric input keys, various function keys, and the like.
A signal for pressing a key pressed on the keyboard is output to the CPU 34.

The communication unit 32 is connected to the network 5 and performs data communication with the workstation 2 and the printer 4 via the network 5.

The display unit 33 is composed of a CRT, an LCD, or the like, and performs display according to display data input from the CPU 34. The display unit 33 displays necessary data when a print job sent from the workstation 2 or a print job to a selected printer is transferred.

The CPU 34 is a control unit that controls the entire device of the host computer 3 and manages the entire print system 1 according to various control programs stored in the hard disk 35. Also, the CPU 34
An input unit 31, a communication unit 32, a display unit 33, a disk control unit 36, and a RAM 37 are connected, and perform data communication, read application programs by accessing each memory, and read / write various data.
Controls data / command input, etc. The CPU 34
Has a function of executing a printer function list creation process (see FIG. 7 and the like) described later and a printer selection process (see FIG. 16 and the like).

The hard disk 35 stores various control programs for operating the CPU 35, parameters used for the processing, and the like.
Various control programs include, for example, the print system 1
A network OS for overall management, a printer function list creation processing program for executing each function of the printer function list creation processing shown in the flowchart of FIG. 7 and the like, and a printer selection processing program shown in the flowchart of FIG. 16 and the like. There is a printer selection processing program for executing each function. These various control programs are
It is stored in the hard disk 35 in the form of a program code readable by the PU 34.

The hard disk 35 also includes a printer list in which information on the printer 4 connected to the network 5 is described, a printer function list created in the printer function list creation processing, and a transmission from the workstation 2. The stored print job and the like are stored. Incidentally, the storage medium is not limited to the above-mentioned hard disk, but may be a floppy disk or a CD-RO.
Other storage media such as M may be used.

FIG. 4 shows an example of the data structure of the printer list. The printer list is composed of data such as a printer identifier, a connection type, a connection format, and an address name.

FIG. 5 shows an example of the data structure of the printer function list. The printer function list is composed of data such as a printer identifier, a connection type, a connection type, an address name, and adjustment printer function information. ing.

The RAM 37 has a work memory for storing various designated control programs, input instructions, input data, processing results, and the like.

FIG. 6 is a block diagram showing a schematic configuration of the printer 4 shown in FIG. In FIG. 6, the printer 4
Is a communication unit 42 for performing data communication, a CPU 42 for controlling the entire apparatus of the printer 4, a ROM 43 storing various control programs for operating the CPU 42, and an R used as a work area for various control programs.
It comprises an AM 44 and a printing section 45 having a printing mechanism.

The communication section 41 is connected to the network 5 and performs data communication with the host computer 3 and the workstation 2 via the network 5.

The CPU 42 is a central control unit that controls the entire apparatus according to various control programs stored in the ROM 43. The CPU 42 includes a communication unit 41
, A ROM 43, a RAM 44, and a printing unit 45, and control data communication and printing by the printing unit 45. Further, the CPU 42 has a function of executing a printer function response process described later (see FIG. 7 and the like).

The ROM 43 stores various control programs for operating the CPU 44, parameters used for the processing, and the like. The various control programs include, for example, a printer function response processing program for executing each function of the printer function response processing shown in the flowchart of FIG. 7 and the like. These various programs are
ROM 4 in the form of readable program code 2
3 is stored. Further, the ROM 43 stores a page description language (PDL) such as a bitmap table and Postscript.

The RAM 44 has a work memory for storing a designated control program, processing results, received print data, and the like.

The printing unit 45 is formed of, for example, a laser printer, and prints the received print data on paper or the like under the control of the CPU 42.

Next, the operation of the printing system 1 will be described.

The printer function list creation processing executed under the control of the CPU 34 of the host computer 3 and the printer function response processing executed under the control of the CPU 42 of the printer 4 will be described below with reference to FIGS.

FIG. 7 shows the CPU 3 of the host computer 3.
4 is a flowchart for explaining a printer function list creation process executed under the control of the printer 4 and a printer function response process executed under the control of the CPU 42 of the printer 4. FIGS. 10 to 12 are flowcharts for explaining the contents of the competing printer function investigation process (step P3) in the printer function response process. FIG.
It is a flowchart for explaining self-function adjustment processing in the printer function response processing.

In FIG. 7, when the power supply of the host computer 3 is turned on, the printer list (see FIG. 4) stored in the hard disk 35 is referred to to obtain the adjusted printer function information of each printer 4. A function inquiry request is transmitted to each printer (step S1).

FIG. 8 shows an example of a data format of a function inquiry request. As shown in FIG. 8, the function inquiry request is in a text file format, and one line includes a parameter name and values of zero or more parameters. Parameter names and parameter values are separated by white space such as spaces and tabs. Lines beginning with “#” are comments and are ignored by the printing system.

In FIG. 7, when the printer 4 receives a function inquiry request from the host computer 3 (step P1), the printer 4 detects its own actual function information related to printing, creates a function list, and creates a function list. (Step P2). More specifically, the function information detected by the printer 4 includes a two-sided device, color ink,
The information includes whether or not an option such as an image improving circuit is provided, and the type of media set in the own paper feed tray.

Next, the printer 4 executes a function investigation process of the competing (other) printer (step P3). It should be noted that the specific processing contents of the function investigation processing of the competing printer will be described later.

The printer 4 creates a competing printer function list based on various types of function information relating to printing of the competing printer (other printers other than the printer connected to the network 5) obtained in the function investigation process of the competing printer. I do.
Then, from the competing printer function list, one or a plurality of printers having functions similar to the function of the selected printer are selected, and function information corresponding to the selected printer is extracted to create a counterpart printer group list (step P4). ).

Here, the basis for selecting a printer having a function close to its own function is the presence or absence of a double-sided function, the printing speed, the resolution, the presence or absence of color printing, the installed media (such as paper), and the support. Page description language (PDL). Specifically, for example, an apparatus having a double-sided function is compared as two kinds of apparatuses, that is, two-sided printing and one-sided printing. Also, the printing speed is ± 2 per minute.
0% of devices are compared. As for the resolution, an apparatus having ± 40% of the effective resolution is to be compared. This is because the effective resolution may be higher than the physical resolution due to high resolution processing or the like. In a device capable of black and white and color printing, a color printing device and a black and white printing device are compared for color printing and black and white printing, respectively. Media and page description languages are intended for devices equipped with equivalents. In addition,
Other criteria may be employed.

Subsequently, it is determined whether there are a plurality of competing printers described in the competing printer group list (step P).
5) If the result of the determination is that there is no plurality of competing printers, that is, if there is only one, the process proceeds to step P7. Select one of the best printers having the best functions from the list and select Step P
Move to 7. If a particularly excellent printer cannot be selected, an arbitrary printer is selected.

In step P7, the printer 4 executes a self-function adjustment process, compares the function information of the selected opposing printer with its own function information, and adjusts (corrects) its own function information. Adjusted printer function information indicating functions superior to its own actual functions and indicating functions equivalent to or higher than the selected counterpart printer is generated. The details of the self-function adjustment processing will be described later. Next, the printer 4 sends a print function inquiry response including the adjusted printer function information to the host computer 3 (Step P8).

FIG. 9 is a diagram showing an example of the data format of the print function inquiry response. As shown in FIG. 9, the printer function inquiry response is in a text file format, and one line includes a parameter name and values of zero or more parameters. Also, parameter names and parameter values are separated by white space such as spaces and tabs. Lines beginning with “#” are comments,
This is ignored in the print system 1. The adjusted printer function information included in the response to the printer function inquiry includes the presence / absence of the duplex function, the printing speed, the resolution, the presence / absence of color printing, the installed media (such as paper), and the supported page description language. Information is included.

Referring again to FIG. 7, when the host computer 3 receives the printer function inquiry response sent from the printer 4 (step S2), based on the adjusted printer function information included in the printer function inquiry response, the host computer 3 described above. A printer function list as shown in FIG. 5 is created (step S3). As shown in FIG. 5, this printer function list has a form in which adjusted printer function information is added to the printer list shown in FIG. That is, the host computer 3 creates the printer function list by sequentially adding the adjusted printer function information to the printer list.

As described above, the printer function list is created every time the power of the host computer 3 is turned on. In this case, the function information of the printer changed after the power is turned on is stored. Cannot be reflected in the printer function list. Therefore, when the function information of the printer is changed, the printer may automatically transmit the adjusted printer function information at that time.

In this example, when the printer 4 receives a function inquiry request from the host computer 3, it checks the function of another printer and adjusts its own function. The function may be checked periodically, when a function change of an existing printer is detected, or when a new printer is added to the network.

Next, in the printer function response processing shown in FIG.
3) will be described in more detail with reference to the flowchart of FIG.

First, in order to find another printer connected to the network 5, the printer 4 requests the host computer 3 to transmit the printer list shown in FIG. 4 and obtains the printer list. (Step P10).

Next, the printer 4 prepares to check the first printer in the printer list, reads the information of the printer described first in the printer list (step P11), and subsequently reaches the end of the pudding list. It is determined whether or not all the printers have been completed (step P12). If the result of the determination is that the end of the printer list has been reached, the routine is terminated and FIG.
The process moves to Step P4. If the end of the printer list has not been reached, the program shifts to Step P13.

In step P13, the printer 4 transmits a function inquiry request in a predetermined data format to the competing printer based on the printer information read from the printer list in order to acquire the function information related to printing of the competing printer. Upon receiving this function inquiry request, the competing printer detects various function information relating to its own printing, and transmits a function inquiry response including various function information relating to its own printing to the requesting printer 4. . The data format of the function inquiry response can be the same as the data format shown in FIG.

Next, after a predetermined time has passed after transmitting the function inquiry request, the printer 4 determines whether or not there has been a function inquiry response from the competing printer of the transmission destination in response to the function inquiry request (step P14). If the result of the determination is that there is a function inquiry response from the competing printer, the program shifts to Step P15. On the other hand, when there is no function inquiry response from the competing printer, after counting a predetermined time (for example, 3 seconds) and waiting for a predetermined time (step P17), it is determined again whether there is a function inquiry response (step P18). If there is a function inquiry response, the process proceeds to step P15. If there is no function inquiry response, it is determined that the competing printer is in a communication-disabled state, and the process proceeds to step P15 without waiting for the function inquiry response. Move to P16.

At step P15, the printer 4 analyzes the contents of the function inquiry response, and stores various types of function information relating to printing by the competing printer in the RAM 44. Subsequently, in step P16, preparations are made for checking the next printer, the information of the printer described next is read from the printer list, and the process proceeds to step P12 until all the printers in the printer list are completed. Repeat the same process.

In consideration of the case where there is another printer that transmits a function inquiry request, if the user receives a function inquiry request transmitted from another printer, the other printer will not receive the function inquiry request. Alternatively, the function inquiry request may not be transmitted. Further, instead of requesting the printer list from the host computer 3 in order to find another printer, a configuration may be adopted in which the printer list is obtained by using a directory service available on the network 5.

Next, another example of the function investigating process of the competing printer will be described in detail with reference to the flowchart of FIG. The method shown in FIG. 11 is to constantly monitor (carrier sense) a signal on the network 5 and collect function information on printing by a competing printer. In this process, the printer always monitors the communication on the network when it is not operating itself (such as printing operation).
It is assumed that a conflict printer list is created based on the received function information on printing of the conflict printer.

When the printer 4 is not operating, the printer 4 always monitors communication (signal) on the network 5 and determines whether or not communication on the network 5 has been received (step P20). When the communication on the network 5 is received, it is determined whether or not the communication content is a printer function inquiry request (step P21). If the request is not a printer function inquiry request, step P
The process proceeds to step 20 to monitor the communication. On the other hand, if the request is a printer function inquiry request, a function inquiry response to the function inquiry request is received (step P22).

Next, a search is made as to whether the printer which has transmitted the function inquiry response has an entry (registered) in the conflicting printer list (step P23), and it is determined whether there is an entry corresponding to the conflicting printer list (step P23). P24) If the result of the determination is that there is an entry in the conflicting printer list, the operation proceeds to step P25, whereas if not, the operation proceeds to step P26 in which a function inquiry is made to the printer list. The printer that has sent the response is registered, and the routine goes to Step P25.

At step P25, the function inquiry request response is analyzed, the function information of the printer is stored in the conflict printer list, and the routine goes to step P20.

That is, according to the above processing, when the printer is not operating, the communication on the network is always monitored, and the function inquiry request transmitted to the competing printer by another printer or the host computer 3 is transmitted. By detecting and receiving a function inquiry response to this, the function information of the competing printer can be collected before a function inquiry request is received from the host computer 3. Therefore, when the function inquiry request is actually received from the host computer 3 and the collected function information on the printing of the competing printer is new, the function information on its own printing is adjusted using only the collected function information. Thus, the adjusted printer function information can be generated. This makes it possible to quickly respond to a function inquiry request from the host computer 3.

Next, the function investigating process of the competing printer combining the methods shown in FIGS. 10 and 11 will be described in detail with reference to the flowchart of FIG.

In the method shown in FIG. 12, when the printer is not operating, although not shown, the printer 4 constantly monitors signals on the network 5 (carrier sense), and The function information related to printing of the competing printer is collected by monitoring, and the printer list transmitted from the host computer 4 is acquired. A function inquiry request is transmitted to a printer other than the printer that has acquired the information, and a function inquiry response to the request is received.

First, in order to find another printer connected to the network 5, the printer 4 requests the host computer 3 to transmit the printer list shown in FIG. 4 and obtains the printer list. (Step P30).

Next, the printer 4 prepares to check the first printer in the printer list, reads the information of the printer described first in the printer list (step P31), and subsequently reaches the end of the pudding list. It is determined whether or not all the printers have been completed (step P32). If the result of the determination is that the end of the printer list has been reached, the routine is terminated and FIG.
The process moves to Step P4. If the end of the printer list has not been reached, the program shifts to Step P33.

At step P33, it is determined whether or not the function information relating to the printing of the prepared printer has already been acquired by the network monitor. As a result of the judgment,
If the function information relating to the printing of the printer has already been acquired, the program shifts to Step P34. On the other hand, if the function information regarding the printing of the printer has not been obtained,
The program shifts to Step P35.

In step P35, the printer 4 transmits a function inquiry request in a predetermined data format to the competing printer based on the printer information read from the printer list in order to obtain the function information on printing of the competing printer. Upon receiving this function inquiry request, the competing printer detects various function information relating to its own printing, and transmits a function inquiry response including various function information relating to its own printing to the requesting printer 4. .

Next, after a predetermined time has passed after transmitting the function inquiry request, the printer 4 judges whether or not there has been a function inquiry response from the competing printer of the transmission destination in response to the function inquiry request (step P36). If the result of the determination is that there is a function inquiry response from the competing printer, the program shifts to Step P38. On the other hand, when there is no function inquiry response from the competing printer, after counting a predetermined time (for example, 3 seconds) and waiting for a predetermined time (step P37), it is determined again whether there is a function inquiry response (step P39). If there is a function inquiry response, the process proceeds to step P38. If there is no function inquiry response, it is determined that the competing printer is in a communication impossible state, and the process proceeds to step P38 without waiting for the function inquiry response. Move to P34.

In step P38, the printer 4 analyzes the contents of the function inquiry response, and stores various types of function information on printing by the competing printer in the RAM 44. Subsequently, in step P34, preparations for checking the next printer are made, the information of the printer described next is read from the printer list, and the process proceeds to step P32 until all the printers in the printer list are completed. Repeat the same process.

Next, the self-function adjustment processing in step P7 in the linter function response processing shown in FIG.
This will be described in detail with reference to the flowchart of FIG.

The self-function adjustment processing includes the function information on printing of the competing printer selected in steps P5 and P6 of FIG. 7 and the function information of the printer on self-printing obtained by the self-function check in step P2 of FIG. The adjustment printer function that adjusts (corrects) the function information of its own machine by comparing with the above, shows a function superior to the actual function of its own machine, and shows a function equal to or more than that of the selected counter printer. It generates information. In the following flowchart, the adjustment items of the printer function are
Printing speed, resolution, and printing cost (including double-sided function)
The following three items will be described as examples.

In FIG. 13, the printer 4 first determines whether or not the printing speed of the competing printer is faster than that of the printer itself (step P40). If the printer 4 is faster, the printer 4 proceeds to step P43. On the other hand, if the counterpart printer is earlier, the process shifts to Step P41 to determine whether the difference in printing speed is small (for example, within 5 ppm). As a result of the judgment, the difference is large (greater than 5 ppm)
In this case, the process shifts to step P43, while if the difference is small, the process shifts to step P42 to adjust (correct) the printing speed of the own printer function information to a value equivalent to that of the counterpart printer, and then to step P43. Move to

Specifically, for example, when the printing speed of the competing printer is 55 ppm and the printing speed of the own device is 50 ppm, the printing speed data of the own device is set to 55 ppm, which is more apparent than the actual printing speed. Excellent functions. This is because there is not much difference in the time required to execute a print job with a difference of about 5 ppm.

Subsequently, in step P43, it is determined whether or not the resolution of the competing printer is higher than that of the own printer. If the resolution of the own printer is higher, the process proceeds to step P46, while the resolution of the competing printer is determined. Is higher than step P
44, the difference in resolution is small (for example, 2
00dpi or less). If the result of the determination is that the difference is large (greater than 200 dpi), the flow shifts to step P46. If the difference is small, the flow shifts to step P45, where the resolution of the printer function information of the printer is equal to that of the counterpart printer. Is adjusted (corrected) to the value of, and the routine goes to Step P46.

Specifically, for example, when the resolution of the competing printer is 1000 dpi and the resolution of the own device is 800 dpi, the data of the resolution of the own device is set to 1000 dpi, and the function which is apparently superior to the actual resolution is set. And This is because a difference in resolution of about 200 dpi can hardly be recognized by the naked eye.

Next, in step P46, it is determined whether or not the printing cost of the competing printer is lower. If the own printer is lower, the process proceeds to step P49, while the printing cost of the competing printer is lower. If the print cost is low, the process shifts to Step P47 to determine whether the difference in print cost is small. As a result of the determination, when the difference in printing cost is large, the process proceeds to Step P49. On the other hand, when the difference in printing cost is small, the process proceeds to Step P48.
After adjusting (correcting) the printing cost of its own printer function information to a value equivalent to the printing cost of the competing printer, the program shifts to Step P49.

The comparison with the printing cost of the rival printer may be made by comparing with the minimum printing cost or the standard printing cost of the rival printer.

In step P49, it is determined whether or not the opposing printer has a duplex function. If the opposing printer does not have a duplex function, the process is terminated. On the other hand, if the competing printer has a duplex function, the process shifts to step P50 to determine whether the cost of the duplex printing is lower for the competing printer. If the result of the determination is that the own machine has lower duplex printing cost, the process is terminated. On the other hand, if the cost of duplex printing is better for the opposing printer, the process shifts to step P51. Then, it is determined whether the difference in the cost of double-sided printing is small or not. If it is determined that the difference between the two-sided printing costs is large, the process is terminated. On the other hand, if the difference between the two-sided printing costs is small, the process shifts to step P52 to perform the two-sided printing of the own printer function information. Is adjusted (corrected) to a value equivalent to the cost of double-sided printing of the opposing printer, and the process is terminated.

If only the own printer is provided with the duplex function and other printers for printing on one side are cheaper than the cost of one-side printing of the own machine, the cost of one-side printing is reduced to the same cost as the competing printer. The configuration may be modified so that the double-sided printing cost is set as the standard printing cost. In this case, the printing unit price reported at the time of charging report may be changed to adjust the actual amount charged to the user.

Also, the functions to be adjusted are as follows.
Not only printing speed, resolution, and printing cost, but also font functions can be adjusted if you have equivalent fonts, and electronic sorting even if the number of output trays is not enough. If the same output result can be obtained depending on the function or the like, the function can be adjusted so as to match the function with the counterpart printer.

Next, the printing operation of the printing system 1 will be described with reference to FIGS.

FIG. 14 is a flowchart for explaining the main processing of the printing operation of the printing system. FIG. 16 is a flowchart illustrating a printer selection process executed by the printer manager. FIG. 17 shows step S in the printer selection process of FIG.
21 is a flowchart for describing the processing of No. 21 in detail.

In FIG. 14, first, at the workstation 2, a print document is created by the input operation of the input unit by the operator (step T 1). Then, the job settings are made so that the created print document is printed on the printer 4. Perform (Step T2). Here, as the job, selection of a printing device, selection of paper and a paper supply / discharge tray, setting of double-sided printing, setting of the number of copies, resolution, completion request time, and the like are set. The print data corresponding to the set job and the print document is sent to the host computer 3 as a print job (step T3).

FIG. 15 shows an example of the data format of a print job. The print job is in a text file format as shown in FIG. 15, and includes print data and print condition data for printing the print data. One line includes a parameter name and zero or more parameter values, and the parameter name and the parameter value are separated by a white space such as a space or a tab. The line starting with “#” is a comment and is ignored in the print system 1.

When the host computer 3 receives the print job transmitted from the workstation 2 (step S10), it executes a printer selection process, which will be described in detail later, and executes this print job based on the print job. (Step S)
11).

Next, the host computer 3 determines whether or not the selected printer is available (the next print job is ready for printing) (step S12).
If the result of the determination is that the selected printer is available, a print job is sent to the selected printer (step S14). If the selected printer is not available, it waits until it becomes available (step S13), and sends a print job to the selected printer (step S1).
4). Here, the print job transmitted from the host computer 3 to the selected printer is based on the print job received from the work station 2 under the conditions used only for the selection of the device (printer) (that is, the device specification, the completion request time specification). Etc.), that is, print condition data and print data such as selection of paper and a paper supply / discharge tray, setting of double-sided printing, number of copies, and the like. This is because, since the printer has been selected, data for selecting these devices is not necessary.

When the printer 4 receives a print job from the host computer 3 (step P60), it changes the settings of its own device in accordance with the settings of the received print job. Send

Subsequently, the printer 4 performs print processing of the print data (step P61), and every time one sheet of paper is discharged, the PDL (Page
-Description Language) and the number of copies specified in the print job settings are notified to the printer manager one by one as the print job progress status. At the time of double-sided printing, information indicating whether printing has been completed on the front side or the back side is also notified at the same time. When all the print data processing is completed, the host computer notifies the host computer of the completion of the printing (step P62), and ends the print job.

Next, the printer selection process executed by the host computer in step S11 in FIG. 14 will be described with reference to the flowchart shown in FIG.

In FIG. 16, first, the host computer 4 determines whether or not a specific printer is designated in the setting of the received print job (step S2).
0). If the result of the determination is that a particular printer has been designated, the flow proceeds to step S25, where this printer is selected as the printer to which the print job is to be sent, and the printer selection processing ends, and the process proceeds to step S12 in FIG. Move to On the other hand, if a specific printer has not been specified in the print job in step S20, the process proceeds to step S21, and the print job is executed with reference to the printer function list created in step S3 in FIG. Select one or more printers that have the function. The details of the processing in step S21 will be described later (see FIG. 17).

Next, the host computer 3 determines whether or not a plurality of printers have been selected as printers capable of executing a print job (step S22). If one printer has been selected, the printer selection processing is performed. Ends, and the routine goes to Step S12 in FIG. On the other hand, if a plurality of printers are selected, step S24
Then, the fastest printer is selected from the plurality of printers, and the printer selection process is completed.
The process proceeds to Step S12 of Step 4.

Next, the processing in step S21 is described in FIG.
A description will be given based on the flowchart of FIG.

In FIG. 17, first, the host computer 3 prepares to check the first printer in the printer function list (see FIG. 5) created in step S3 in FIG. 7 (step S30). Is reached (whether or not all printers have been completed) (step S31). If the result of the determination is that the end of the printer function list has been reached, the routine ends, and the routine proceeds to step S22 in FIG. On the other hand, if the end of the printer function list has not been reached, the process proceeds to step S32.

In step S32, it is determined with reference to the printer function list whether a necessary medium specified by the print job (for example, paper of the size specified by the print job) is provided. If the result of the determination is that the required medium is not provided, the flow proceeds to step S38, while if the required medium is provided, the flow proceeds to step S33.

In step S33, referring to the printer function list, it is determined whether or not the printer supports the double-sided mechanism when the double-sided mechanism is specified in the print job. As a result of the determination, if the two-sided mechanism is specified in the print job and the printer does not support the two-sided mechanism, the process proceeds to step S38. On the other hand, if the two-sided mechanism is not specified in the print job, If the mechanism is specified and the printer does not support the duplex mechanism, the process proceeds to step S34.

In step S34, referring to the printer function list, if color printing is specified in the print job, it is determined whether the printer supports color printing. If it is determined that color printing is specified in the print job and the printer does not support color printing, the process proceeds to step S38. If color printing is not specified in the print job, If color printing has been designated and the printer does not support color printing, the process moves to step S35.

In step S35, by referring to the printer function list, if multiple copies are specified in the print job, it is determined whether the printer supports multiple copies. If the result of the determination is that multiple copies have been specified in the print job and the printer does not support multiple copies, the process proceeds to step S38, while if multiple copies have not been specified in the print job, If a plurality of copies is designated by the user and the printer does not support the plurality of copies, the process proceeds to step S36.

In step S36, it is determined whether or not the printer supports the print data format by referring to the printer function list. As a result of the determination, if the printer does not support the print data format, the process proceeds to step S38, while if the printer supports the print data format, the process proceeds to step S37.

In step S37, the current printer is added to the job executable printer list, and preparations are made for checking the next printer in the printer function list (step S38). The same processing is repeated until all the printers in the function list are completed.

The printer selected as a printer capable of executing a print job is a group of printers having the minimum necessary functions as described above. The conditions at this time include having a required medium and having a mechanism (such as a double-sided mechanism) required to realize the required item. Furthermore, one is selected from this set under some conditions. This condition is selected by the administrator of the print system, and in the printer selection process shown in FIG. 16 described above, an example in which “the printer that can print the fastest” is selected in S24 has been described. "Printer" may be selected.

More specifically, printers A, B,
In the print system having the configuration C, a job requiring double-sided printing is first executed by the printer A, and is selected by the printer B only when the printer A cannot be used. In the case of a job requiring one-sided printing, the printer A is given priority, followed by the printer C, and the printer C is selected only when it cannot be used.

Printer A: Both sides possible, 20 ppm (one side), 18 ppm (both sides), 1200 dpi 3 yen / sheet, 8 yen / sides Printer B: Both sides possible, 17 ppm (one side), 16 ppm (both sides), 800 dpi 3 yen / sheet , 8 yen / both sides Printer C: Both sides impossible, 19ppm (one side), 600dpi, 2 yen / sheet

As described above, in the present embodiment, in the service providing system, each of the plurality of printers 4 detects various types of function information relating to printing of its own device, and further relates to printing of other printers. Detects various functions, compares the detected various types of function information related to printing of the own device with various types of function information related to printing of other printers, adjusts the function information of the own device, and compares the function information of the own device with the actual function of the own device. Adjusted printer function information indicating excellent functions is sent to the host computer 3, and the host computer 3 creates a printer function list based on the adjusted printer function information sent from each of the plurality of printers 4. In this configuration, one printer suitable for executing a print job is selected from a printer function list based on a required function.

Accordingly, the printer reports to the host computer a function relating to its own printing that is superior to the actual function within a range that does not significantly affect the result of the print job, so that other printers on the network can communicate with each other. By pretending to provide a function related to printing that is equal to or more than that of a specific printer, it is possible to prevent a specific printer from being unevenly consumed due to a slight difference in the functions of the printer.

In the above embodiment, the print system is described as an example of the service providing system. However, the present invention is not limited to this.
The present invention is also applicable to other service providing systems such as an AX system and a scanner system.

[0133]

As described above, according to the first aspect of the present invention, in the service providing system, each of the plurality of service providing devices detects various types of functional information relating to the service of the own device, and performs the detection. Adjustment that compares various function information related to the service of the own device with various function information related to the service of another service providing device, adjusts the function information of the own device, and indicates a function superior to the actual function of the own device. The service function information is sent to the server, and the server compares the function requested in the received service request information with the adjusted service function information sent from each of the plurality of service providing devices, and determines the service of the received service request information. Since the configuration is such that one service providing device suitable for execution is selected, the service providing device can be used within a range that does not significantly affect the service result. The service-related functions of the machine can be reported to the server as being superior to the actual functions. As a result, it is possible to prevent a slight difference in the functions of the service-providing devices from being consumed in a particular service-providing device. This can be prevented.

According to the second aspect of the present invention, in the service providing system, the plurality of printers each
Detects various types of function information related to printing of the own device, compares the detected various types of function information related to printing of the own device with various types of function information related to printing of another printer, adjusts the function information of the own device, and adjusts the function information of the own device. Sends adjusted printer function information indicating functions superior to the actual functions of the machine to the server, and the server compares the functions required in the received print job with the adjusted printer function information sent from each of the multiple printers. In addition, since the configuration is such that one printer suitable for executing the received print job is selected, the printer can perform its own printing-related functions better than the actual functions without significantly affecting the results of the print job. As a result, it is possible to prevent a particular printer from being consumed unevenly due to a slight difference in the functions of the printer. .

According to the third aspect of the present invention, in the service providing system, the plurality of printers each
Detects various function information related to printing of own device, detects various functions related to printing of another printer, detects various function information related to printing of own device and various function information related to printing of another printer , And adjusts the function information of its own device to send adjusted printer function information indicating a function superior to the actual function of its own device to the server. The server sends the adjusted printer function information sent from each of the plurality of printers to the server. The printer function list is created based on the function information, and one printer suitable for executing the print job is selected from the printer function list based on the function requested by the received print job. It is possible to report the printing function of the local machine to the server as being superior to the actual function without significantly affecting the print job result. The difference of only a few of the printer function and it is possible to prevent the specific printer is consumed unevenly.

According to the fourth aspect of the invention, the printer sends a function inquiry request to another printer.
As a response, a function inquiry response including various function information related to printing of another printer sent from the other printer is received, and various functions related to printing of another printer are detected. In addition to the effects of the described invention, the printer can detect various functions related to printing by another printer by a simple method.

According to the fifth aspect of the present invention, a printer carries out carrier sense of a signal on a transmission path, receives a function inquiry response including various function information relating to printing of another printer, and receives a response from the other printer. Since the configuration is such that various functions relating to printing are detected, in addition to the effect of the invention described in claim 3, the printer can always detect various functions relating to printing of another printer.

According to the invention of claim 6, the printer compares the printing cost of its own printing with the printing cost of the other printer, adjusts its own printing cost, and adjusts its own printing cost. Since the adjustment printer function information including the information on the printing cost better than the actual printing cost of the machine is transmitted, in addition to the effect of the invention described in claim 2 or 3, the printing cost of the machine itself is reduced. The server can be reported to be superior to the printing cost, and as a result, it is possible to prevent a particular printer from being consumed unevenly due to a slight difference in printing cost.

According to the seventh aspect of the invention, the printer compares the printing speed of its own printer with the printing speed of the other printer, and adjusts its own printing speed to adjust its own printing speed. Since the adjustment printer function information including the information of the printing speed better than the actual printing speed of the machine is transmitted, in addition to the effect of the invention according to the second or third aspect, the printing speed of the own machine is set to the actual printing speed. It is possible to report to the server that the printing speed is superior to the printing speed. As a result, it is possible to prevent a particular printer from being consumed unevenly due to a slight difference in printing speed.

According to the invention of claim 8, the printer compares the resolution of its own printer with the print of the other printer, adjusts its own resolution, and adjusts its own actual resolution. Since the adjustment printer function information including information of a resolution better than the resolution of the present invention is transmitted, in addition to the effect of the invention described in the second or third aspect, the resolution of the own device may be superior to the actual resolution. To the server, and as a result, it is possible to prevent a particular printer from being consumed unevenly due to a slight difference in resolution.

According to the ninth aspect of the present invention, the server in the service providing system collates the function requested in the received print job with the adjusted printer function information sent from each of the plurality of printers. Since the configuration is such that one printer suitable for executing the selected print job is selected, a server in a service providing system capable of preventing a specific printer from being unevenly consumed due to a slight difference in printer functions is provided. Can be provided.

According to the tenth aspect of the present invention, in the service providing system, each of the printers detects various types of function information relating to the printing of its own device, and detects the various types of function information relating to the detected printing of its own device. Is compared with various function information related to printing of other printers, adjusts the function information of the own device, and sends the adjusted printer function information indicating a function superior to the actual function of the own device to the server. ,
A printer can report its printing capabilities to the server as better than the actual capabilities to the extent that it does not significantly affect the results of the print job, and as a result, only slight differences in printer capabilities It is possible to provide a printer in a service providing system that can prevent a specific printer from being consumed unevenly.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a schematic configuration example of a print system according to an embodiment;

FIG. 2 is a block diagram illustrating a schematic configuration of a workstation illustrated in FIG. 1;

FIG. 3 is a block diagram illustrating a schematic configuration of a host computer illustrated in FIG. 1;

FIG. 4 is a diagram illustrating a data configuration example of a printer list.

FIG. 5 is a diagram illustrating a data configuration example of a printer function list.

FIG. 6 is a block diagram showing a schematic configuration of the printer shown in FIG.

FIG. 7 shows a printer function table creation process executed under the control of the CPU of the host computer and C of the printer.
9 is a flowchart for explaining a printer function response process executed by control of a PU.

FIG. 8 is an example of a data format of a function inquiry request.

FIG. 9 is a diagram illustrating an example of a data format of a print function inquiry response.

FIG. 10 is a flowchart for explaining a competing printer function investigation process in the printer function response process of FIG. 7;

FIG. 11 is a flowchart for explaining a competing printer function investigation process in the printer function response process of FIG. 7;

FIG. 12 is a flowchart illustrating a conflicting printer function investigation process in the printer function response process of FIG. 7;

FIG. 13 is a flowchart illustrating a self-function adjustment process in the printer function response process of FIG. 7;

FIG. 14 is a flowchart illustrating a main process of a print operation of the print system.

FIG. 15 is an example of a data format of a print job.

FIG. 16 is a flowchart illustrating a printer selection process executed by a printer manager in the main process of FIG. 14;

FIG. 17 is a flowchart for explaining in detail a process of step S21 in the printer selection process of FIG. 16;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 print system 2 workstation 3 host computer 4 printer 5 network 21 input unit 22 communication unit 23 display unit 24 CPU 25 hard disk 26 disk control unit 27 RAM 31 input unit 32 communication unit 33 display unit 34 CPU 35 hard disk 36 disk control unit 37 RAM 41 communication unit 42 CPU 43 ROM 44 RAM 45 printing unit

Claims (10)

[Claims] 1. Each is connected via a transmission line,
A client for transmitting a service and service request information specifying conditions for executing the service to the transmission line, a plurality of service providing apparatuses for executing the service, and one of the plurality of service providing apparatuses; In a service providing system including a server for selecting a service providing device, the plurality of service providing devices include a service providing unit for performing a service, a self-function detecting unit for detecting various function information related to a service of the own device, The function information of the own device is compared with the various function information of the service of another service providing device, and the function information of the own device is adjusted to indicate a function superior to the actual function of the own device. Adjusting service function information sending means for sending adjustment service function information to the transmission path, the server comprising: The function requested by the service request information received via the transmission path is checked against the adjusted service function information transmitted from each of the plurality of service providing apparatuses, and the service of the service request information transmitted from the client is checked. Service providing device selecting means for selecting one service providing device suitable for execution. 2. Each of them is connected via a transmission line,
A client for sending print data and a print job including print conditions for printing the print data to the transmission path; a plurality of printers capable of printing print data; and one of the plurality of printers A plurality of printers, the plurality of printers includes a printing unit that prints print data, an own device function detecting unit that detects various types of function information related to printing of the own device, Comparing the various types of function information related to the printing of the printer with the various types of function information related to the printing of other printers, and adjusting the function information of the own device to obtain the adjusted printer function information indicating a function superior to the actual function of the own device. And an adjustment printer function information sending unit for sending to the transmission path, wherein the server is a device requested by a print job received via the transmission path. Service providing system characterized in that it comprises a printer selection means for collating the adjustment printer information are respectively sent out to select one of the printer suitable for executing the print job from the plurality of printers and. 3. Each is connected via a transmission line,
A client for sending print data and a print job including print conditions for printing the print data to the transmission path; a plurality of printers capable of printing print data; and one of the plurality of printers A plurality of printers, the plurality of printers include a printing unit for printing print data, a self-function detection unit for detecting various function information related to printing of the self-device, and another printer. The other function detecting means for detecting various functions relating to printing of the printer, and comparing various function information relating to printing of the own apparatus with various function information relating to printing of the other printer, and adjusting the function information of the own apparatus. Adjusting printer function information transmitting means for transmitting, to the transmission path, adjusted printer function information indicating a function superior to the actual function of the own device. The server includes a printer function list creating unit that creates a printer function list based on the adjusted printer function information sent from each of the plurality of printers, and a server based on a function requested by a print job received via the transmission path. A printer selection unit for selecting one printer suitable for executing the print job from the printer function list. 4. The other function detecting means sends a function inquiry request to another printer, and in response to the function inquiry request, sends a function inquiry response including various function information relating to printing of another printer sent from the other printer. 4. The service providing system according to claim 3, wherein the service receiving system detects various functions related to printing of another printer. 5. The other function detecting means carries out carrier sense of the signal of the transmission path, receives a function inquiry response including various function information relating to printing of another printer, and executes various functions relating to printing of another printer. The service providing system according to claim 3, wherein the service is detected. 6. The adjustment printer function information sending means,
An adjustment printer that compares the printing cost related to the printing of the own device with the printing cost related to printing of the other printer, adjusts the printing cost of the own device, and includes information of a printing cost lower than the actual printing cost of the own device. 4. The service providing apparatus according to claim 2, wherein function information is transmitted to the transmission path. 7. The adjustment printer function information sending means,
An adjustment printer that compares the print speed of the own device with the print speed of the other printer, adjusts the print speed of the own device, and includes information of a print speed better than the actual print speed of the own device. 4. The service providing apparatus according to claim 2, wherein function information is transmitted to the transmission path. 8. The adjustment printer function information sending means,
The resolution of the printing of the own device is compared with the resolution of the printing of the other printer, and the resolution of the own printer is adjusted to transmit the adjusted printer function information including information of a resolution better than the actual resolution of the own printer. 4. The service providing apparatus according to claim 2, wherein the service is provided to a road. 9. A client that sends print data including print data and print conditions for printing the print data to the transmission path, and a plurality of printers that can print the print data via a transmission path. On the server,
A printer for comparing a function required for a print job received via the transmission path with adjusted printer information sent from each of the plurality of printers, and selecting one printer suitable for executing the print job A server comprising selection means. 10. A client that sends print data including print data and print conditions for printing the print data to the transmission path via a transmission path, and a server that selects one printer from a plurality of printers. Printing means for printing print data, self-function detecting means for detecting various function information relating to printing of the own apparatus, various function information relating to printing of the self apparatus, and other printers. And sending the adjusted printer function information indicating the function superior to the actual function of the own apparatus to the transmission path by comparing the function information of the own apparatus with the various function information relating to the printing of the printer. And a printer.