JP2018005836A - Information processor, program, and control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a printer driver to be available, even when a protocol corresponding to a port determined to be used in the printer driver does not coincide with a protocol for which a printer has been found by search on a network.SOLUTION: Of the printers found by searching for printers on a network using a plurality of protocols, selection of a printer into which a printer driver is installed is received, and a port used by the printer driver is determined as a specific port. When a printer into which the printer driver is installed is not found by search using a specific protocol corresponding to the specific port, a screen for promoting change of setting about the specific protocol of the printer that has not been found by search is displayed.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a technique for installing a printer driver.

  Conventionally, there is a technique for installing a printer driver for a printer on a network. Patent Document 1 discloses a technique for installing a printer driver using an IP address.

JP2006-252095

  When there are a plurality of printers on the network, it is possible to reduce the trouble of selecting a printer by the user by searching the network and selecting a printer for which a printer driver is to be installed from the printers found by the search. At this time, the printers on the network may be set not to respond to searches using a specific protocol. Therefore, in this specification, the printers on the network are searched using multiple protocols in order to search for more printers. Consider doing it.

  Multiple protocols can be used to search for printers on the network, but the printer driver uses only one port. Therefore, depending on the printer, when the port of the printer driver is determined, the protocol corresponding to the determined port of the printer driver may not match the protocol that found the printer by searching on the network. If an attempt is made to use a printer driver with a port determined for such a printer, there is a possibility that the installation of the printer driver may fail, or the configuration information acquisition or the printing process may fail.

  In contrast, according to the present invention, the printer driver can be used even when the protocol corresponding to the port determined to be used by the printer driver does not match the protocol found by the search on the network. The purpose is to do.

In order to achieve the above object, an information processing apparatus according to the present invention provides:
Search means for searching for printers on the network using multiple protocols;
Among the printers found in the search, a reception means for accepting selection of a printer to install a printer driver;
Determining means for determining a port used by the printer driver;
A port used by the printer driver is determined to be a specific port by the determining unit, and the printer to install the printer driver is not found by the search unit by searching for a specific protocol corresponding to the specific port A display means for displaying a screen for prompting the user to change the setting related to the specific protocol of the printer.

  According to the present invention, the printer driver can be used even if the protocol corresponding to the port determined to be used by the printer driver does not match the protocol found by the search on the network.

1 is a block diagram showing a schematic configuration of a system. The block diagram which shows the hardware / software structure of a client. Printer driver installation process in the installer. Recommended port determination processing in the installer of the second embodiment. The figure which shows the screen transition of an installer. Table used in the recommended port judgment process of the installer. Screen shot of installer that switches search ports by tab. Recommended port determination processing in the installer of the first embodiment.

  A printer driver of Microsoft (registered trademark) Windows (registered trademark) has a function called Autoconfiguration as a mechanism for automatically acquiring device configuration information after being installed. With this function, for device functions that cannot be used with a standard configuration device but can be used when the paper output option is connected, whether or not the printer driver can display its function according to the configuration information acquired from the device is displayed. Since the automatic setting is performed, there is an advantage that the user does not need to set the printer driver manually in consideration of the device configuration.

  Incidentally, as a communication protocol for acquiring device configuration information, there is a printer driver that supports a plurality of types of communication protocols. Among Windows printer drivers, the V4 (Version 4) printer driver generally obtains configuration information through Microsoft recommended WSD communication, but some devices do not support WSD (Web Services for Devices) communication. Even if WSD communication is supported, responses of some items of configuration information are not supported. Therefore, SNMP (Simple Network Management Protocol) is used as a communication protocol different from WSD depending on the connection port at the time of installation. There is also a printer driver that acquires configuration information using / MIB (Management Information Base).

  In such a printer driver, the communication protocol for acquiring device configuration information is determined by the connection port selected by the user during installation, and the printer driver is automatically set according to the device information acquired using the determined communication protocol. It was. When selecting a connection port, the printer driver installer searches for a device for each communication protocol, and the user selects a connection port on a screen (for example, FIG. 7) on which a device name searched for for each communication protocol is displayed. It was.

  FIG. 7 shows an example of an installer screen for the user to select an installation target device. The device search results are tab names “IPv4 device”, “IPv6 device”, and “WSD device” for each communication protocol at the time of the search. Is displayed. In the “IPv4 device” tab and the “IPv6 device” tab, devices found by searching for the IPv4 and IPv6 TCP / IP protocols are displayed, respectively. When a device is selected on these tabs, the TCP port is processed as a connection port at the time of installation. In the “WSD device” tab, devices found by searching the WSD protocol are displayed. When a device is selected in this tab, the WSD port is processed as a connection port at the time of installation.

Embodiment 1
In this embodiment, a method of actively installing a printer driver with a WSD port will be described for a printer in which WSD communication is valid as a factory default value of WSD communication setting.

  FIG. 1 is a block diagram showing a schematic configuration of a system according to the present invention.

  This system includes a client computer 100 and a printer A 200 and a printer B 201 that can receive print data in a page description language (hereinafter referred to as PDL) format and perform authentication printing (in the example shown in the figure, two printers). However, it may be one or more than three.) These can be connected and communicated via a network 300 represented by a local area network (LAN). The printer A 200 and the printer B 201 may be a single function printer having only a printing function, or a multi-function printer having a printing function, a scanning function, and a copying function. Reference numeral 400 denotes a printer server.

  FIG. 2 is a block diagram illustrating a hardware configuration and a software configuration of a client computer that is an example of an information processing apparatus.

  The client computer 100 is composed of the hardware shown in FIG. Detailed description is described below.

  The CPU 101 controls the entire apparatus according to a program stored in the ROM 1021, the RAM 1022, or the auxiliary storage device 105 of the main storage device 102. The RAM 1022 is also used as a work area when the CPU 101 performs various processes. The auxiliary storage device 105 records an operating system (OS) 1053, a printer driver 1052, application software 1051, and the like. In the following description, the main storage device 102 and the auxiliary storage device 105 are collectively referred to as a storage device.

  In addition, when the CPU 101 executes processing based on the program stored in the auxiliary storage device 105, the software configuration of the client computer 100 as shown in FIG. Realized.

  Input devices such as a pointing device 1032 and a keyboard 1031 typified by a mouse / touch panel are connected through the input I / F 103 and are devices for a user to give various instructions to the computer. The output I / F 104 is an interface for outputting data to the outside, and outputs data to an output device such as the monitor 1041. The communication I / F 106 is an interface for communicating with a printer (200, 201, etc.) through the network 300.

  A common data system bus 107 exchanges data between the I / F and modules.

  Further, in the client computer 100, the CPU 101 executes processing based on a program stored in the storage device, whereby processing of each step of the flowchart described later is realized with a software configuration as shown in FIG. The

  The printer driver 1052 is installed on the client computer 100 by a driver installer 10510 (hereinafter abbreviated as an installer).

  The installer 10510 is an application program, and includes a printer search unit 10511, a recommended port determination unit 10512, and the like. A printer search unit 10511 performs search processing for a connected printer. The recommended port determination unit 10512 determines the recommended port of the printer driver to be installed according to the flowchart of FIG.

  The driver installation processing unit 10530 performs an installation process of the printer driver 1052 based on an instruction of the installer 10510 in the process of the OS 1053.

  FIG. 3 is a flowchart showing the flow of printer driver installation processing in the installer 10510. This will be described below with reference to the screen example of the installer 10510 shown in FIG. Note that the installer 10510 according to this flow is recorded in the auxiliary storage device 105, loaded into the RAM 1022, and executed by the CPU 101.

  When the program is started by the user, the installer 10510 displays a screen (not shown) for selecting a printer driver setup method and waits for selection by the user (S101). The setup method includes “standard setup” described later, “custom setup” in which the user can arbitrarily select a device and set a port, and “USB connection setup” for installing the printer driver of the printer to which the client computer 100 is connected via USB. In step S101, each setup (installation) is executed according to the setup method selected by the user.

  If “standard setup” is selected in S101, the installer 10510 displays a standard setup screen (not shown) (S102), and waits for an instruction to add a new printer driver or update an existing printer driver. In step S <b> 105, the installer 10510 searches for printers in units of protocols using a plurality of protocols such as a TCP (IPv4 / IPv6) protocol and a WSD protocol in accordance with processing of the printer search unit 10511. When the search is completed, the installer 10510 displays a printer search result on a screen as shown in FIG. 5A (S106).

  In FIG. 5A, reference numeral 501 denotes an area for the user to specify a printer driver to be installed by the printer name. As a result of the search in S105, a printer found by either the TCP / IP or WSD protocol is selected. List by printer name. In the illustrated example, a printer name 502 corresponding to the printer A200 and a printer name 503 corresponding to the printer B201 are displayed. Reference numeral 504 denotes a button for performing the search in S105 again when the printer state changes due to, for example, a change in printer settings. The user can determine that a printer has been selected by selecting the printer driver to be installed by the printer name in the area 501 and then pressing the button 505 (S107), and can proceed to the next screen. As described above, the installer 10510 accepts selection of a printer in which a printer driver is to be installed among printers found by searching through the screen of FIG.

  After the printer name of the installation target printer driver is determined in S107, the installer 10510 performs recommended port determination processing for each of the installation target printer drivers by the recommended port determination unit 10512 (S108). Details will be described later with reference to FIG.

  In S109, the installer 10510 refers to the result of the recommended port determination process by the recommended port determination unit 10512 in S108. Then, for each printer driver to be installed, the installer 10510 determines the port used by the target printer driver as the TCP port if the TCP port is recommended (S110), and determines the port as the WSD port if the WSD port is recommended (S111). If the TCP port is determined, the installer 10510 follows the result of the search by the printer search unit 10511 in S105, and the printer of the printer driver to be installed among the printers found by searching with TCP / IP IPv4. If a printer with the same name exists, the IPv4 port is determined. Similarly, the installer 10510 determines an IPv6 port if a printer having the same printer name as that of the printer driver to be installed exists among printers found by searching with IPv6 of TCP / IP.

  When the installer 10510 determines the TCP port in S110, the installer 10510 displays an installation content confirmation screen before starting the installation process as shown in FIG. 5C in S112. The installation content confirmation screen includes a combination of a printer for installing the printer driver and a port used by the printer driver determined in S110 or S111. In the example of FIG. 5C, the installation contents are “printer A” as the printer name selected by the user as in 521, and “IPv4” as the port name determined by the installer 10510 according to the result of the recommended port determination unit 10512. Is displayed. Reference numeral 522 denotes a button used when the user determines to install by selecting another port with respect to the installation conditions displayed in 511. In S116, it is determined whether selection of another port is requested by pressing a button 522 or a button 512 described later. When the button 522 is pressed (Yes in S116), the installer 10510 jumps to S103 and transitions to an installation flow based on “custom setup”.

  On the other hand, when the installer 10510 determines the WSD port in S111, the installer 10510 displays an installation content confirmation screen before starting the installation process as shown in FIG. 5B in S112. In FIG. 5B, “printer A” is displayed as the printer name selected by the user as in 511, and “WSD” is displayed as the port name determined by the installer 10510 according to the result of the recommended port determination unit 10512. The 512 is the same button as 522, and when this button is pressed (Yes in S116), the installer 10510 jumps to S103 and transitions to an installation flow based on “custom setup”.

  In addition, you may comprise so that it may advance to S117 after S112, without providing the determination step of S116.

  In step S117, it is determined whether the port determined by the installer 10510 is a WSD port. If the determined port is a WSD port, the process proceeds to S113, and if the determined port is not a WSD port, the process proceeds to S114.

  In step S113, the installer 10510 displays the search result by the printer search unit 10511 in step S105 in order to check whether communication with the printer that is the output destination of the installation target printer driver is possible using the communication protocol corresponding to the determined port. Check. If there is a printer having the same name as the printer driver to be installed among the printers found by searching with WSD, the installer 10510 proceeds to S114 and starts the installation process according to the content of S112. If it does not exist, the process proceeds to S115.

  In step S115, the installer 10510 requests the user to change the setting related to the WSD protocol (WSD setting) for the printer body that is the output destination of the printer driver to be installed, by displaying the screen as shown in FIG. In 531 of FIG. 5D, since the installation process cannot be continued, a message for confirming that the WSD setting of the target printer main body is valid is displayed. This message is displayed when the WSD port is determined as the installation condition, but the search result in the WSD does not include the same printer name as the installation target. In this case, the target printer cannot be recognized by the WSD communication as the OS 1053, and the WSD setting of the target printer main body needs to be changed so that the target printer can be recognized. The user can start again from step S105 by pressing the button 532 after changing the WSD setting of the target printer body. Conversely, in a case where the WSD setting of the target printer main body cannot be changed, the user can switch to the “custom setup” installation flow of S103 by pressing the button 533. In this way, on the screen of FIG. 5D, an instruction to re-search the printer after changing the WSD setting of the printer body or change the WSD port to another port is accepted.

  In this way, when the installer uses the WSD port as the port to be used by the printer driver, and the printer for installing the printer driver has not been found by searching for the WSD protocol corresponding to the WSD port, the installer sets the WSD protocol. Display a screen prompting changes.

  Note that a button “Enable WSD setting” (not shown) is displayed in the screen of FIG. 5D so that the user does not have to go to the front of the target printer to change the setting of the target printer. There may be. When the user presses the button, the installer 10510 transmits a setting change command for enabling the WSD setting to the target printer. If the setting change of the target printer main body is successful, the process returns to S114. The error is displayed and the screen of FIG. 5D is continuously displayed.

  FIG. 8 is a flowchart showing the flow of recommended port determination processing by the recommended port determination unit 10512 in the installer 10510.

  In step S211, the recommended port determination unit 10512 determines whether the target printer is a WSD recommended machine. As a result of the determination, the recommended port determination unit 10512 proceeds to S212 if it is a WSD recommended machine, or proceeds to S215 if it is not a WSD recommended machine. A WSD recommended machine is a printer whose factory default value of the WSD communication setting of the target printer is a valid setting value for WSD communication, and in the case of a printer whose factory default value of the WSD communication setting is invalid Is not determined as a WSD recommended machine. As a method for determining whether or not the target printer is a WSD recommended machine, a determination is made from a list stored in advance in the installer 10510 indicating whether or not the target printer is a WSD recommended machine for each model of the target printer.

  If the factory default value of the WSD communication setting of the target printer is valid, the recommended port determination unit 10512 determines the WSD port that is the port that uses it as the recommended port as the communication protocol for acquiring device information (S216). . If the factory shipment value of the WSD communication setting of the target printer is invalid, the recommended port determination unit 10512 determines a TCP port that is a port using the recommended port as a recommended protocol as a communication protocol for acquiring device information (S215). .

  Through the above processing, the installer determines whether the printer model is a model that determines the port used by the printer driver as the WSD port based on the list. When it is determined that the model is determined to be the WSD port, the port used by the printer driver is determined as the WSD port.

[Embodiment 2]
In the first embodiment, the port used by the printer driver is positively determined as the WSD port. However, depending on the printer, the MIB may be more advantageous in acquiring configuration information than the WSD. The following is a specific example of the number of configuration information items that can be acquired by acquiring configuration information of WSD and MIB.

Printer A:
When the MIB version supported as a printer is 2.80 and the WSD version is 2.00, the number of configuration information items that can be acquired is larger in the WSD than in the MIB. If a TCP port is selected and installed, the following items that can be acquired by WSD cannot be acquired by MIB.
・ Discharge option type (necessary for displaying finishing functions such as folding)
-Paper type (required to display only paper types that can be processed by the printer)
As a result, the finishing function and paper type options cannot be displayed correctly in the driver's print settings.

Printer B:
When the MIB version supported as a printer is 2.80 and the WSD version is 1.00, the number of configuration information items that can be acquired is larger for the MIB than for the WSD. If the WSD port is selected and installed, the following items that can be acquired by the MIB cannot be acquired by the WSD.
・ Presence / absence of paper feed option device (number of paper feed stages)
As a result, the paper feed option cannot be displayed normally in the driver print settings.

  Therefore, in this embodiment, a method for determining whether to use a WSD port or a TCP port using a plurality of steps will be described.

  FIG. 4 shows recommended port determination processing performed in place of FIG. Note that the same processing as the steps already described is assigned the same number as that of the steps already described.

  In FIG. 4, the recommended port determination processing by the recommended port determination unit 10512 is stored in advance in the processing parts S <b> 201 to S <b> 210 determined from information obtained by communication with the printer that is the output destination of the printer driver to be installed, and in the installer 10510. It comprises processing parts S211 to S213 that are determined from the information being processed. Further, the processing parts S201 to S210 include processing parts S201 to S203 that are determined from information obtained only through MIB communication, and processing parts S204 to S210 that are determined from information obtained through both MIB and WSD communication. . Note that, as in processing parts S201 to S210, priority is given to the step of determining from information obtained by communication with the target printer, so that the target printer used in the determination process described later by updating the firmware version of the target printer or the like. Even if the ability information changes, it can be determined accurately.

  First, processing parts S201 to S203 determined from information obtained only by MIB communication will be described.

  In S201, a recommended protocol inquiry command is transmitted to the target printer in the MIB format. The recommended protocol inquiry command indicates which MIB or WSD communication protocol is recommended as a communication protocol that enables the printer to notify more types of device information attribute items in response to various device information acquisition commands from the outside. This is a command for inquiring. The device information attribute items are, for example, attribute items of device configuration information such as presence / absence of a paper feed option device, presence / absence of a paper discharge option device, paper feed option device type, paper discharge option device type, etc. The printer driver can be automatically set more accurately if you can get more items.

  As a result of the transmission, if a response indicating that the command is not supported is returned from the destination printer in S202, the recommended port determination unit 10512 moves to the processing part after S204.

  In S203, the inquiry result for the inquiry of the recommended protocol is determined. If there is a response from the destination printer to recommend MIB in response to the recommended protocol inquiry in S203, the recommended port determination unit 10512 uses a port that uses it as a communication protocol for acquiring device information. A certain TCP port is determined as a recommended port (S215). As described above, the installer 10510 determines a port to be used by the printer driver based on a response to the recommended protocol inquiry command. The device information acquisition is executed in the Autoconfiguration process performed by the driver installation processing unit 10530 at the end of the installation process, and the printer driver is automatically set by this process. Therefore, when there is a device information attribute item that cannot be acquired, it is not reflected in the function display on the printer driver that is switched by referring to the attribute item.

  On the other hand, if there is a response from the destination printer to recommend WSD in response to the recommended protocol inquiry in S203, the recommended port determination unit 10512 uses it as a communication protocol for acquiring device information. The WSD port which is a port is determined as a recommended port (S216).

  Next, processing parts S204 to S210 that are determined from information obtained by both MIB and WSD communications will be described.

  In S204, the recommended port determination unit 10512 searches for the printer found by WSD as a search result by the printer search unit 10511 of S105 described above with reference to FIG. 3 in order to determine whether WSD communication with the target printer is possible. Check if a printer with the same name as that of the printer driver to be installed exists. As a result of the confirmation, if the same printer name as that of the printer driver to be installed does not exist, that is, if WSD communication with the target printer is not possible, the recommended port determination unit 10512 moves to the processing part after S211.

  If WSD communication with the target printer is possible, the recommended port determination unit 10512 transmits a command for acquiring the MIB and WSD specification versions to the target printer (S205, S207). The command format may be either MIB format or WSD format. If the specification version cannot be acquired for each command transmission, the recommended port determination unit 10512 moves to the processing part after S211 (S206, S208). The specification version is a value for determining the number of device information attribute items that the printer can respond with valid values for various device information acquisition commands. If the specification version value is large, the number of attribute items is increased. It corresponds to the response of.

  In step S209, the recommended port determination unit 10512 determines which protocol can acquire more types of device information attribute items from the target printer from the acquired MIB specification version and WSD specification version. Specifically, the determination is made with reference to a table as shown in FIG. In FIG. 6, there is a column 601 of WSD specification version and a column 602 of the maximum value of MIB specification version in which “the number of items that can be acquired in WSD> the number of items that can be acquired in MIB” regarding the number of items that can be acquired. For example, when the WSD specification version is 1.00 and the MIB version is 2.80, it can be determined that the number of items that can be acquired is larger in the MIB than in the WSD. Further, when the WSD specification version is 2.00 and the MIB version is 2.80, it can be determined that the number of items that can be acquired is greater for the WSD than for the MIB.

  In S210, according to the determination result in S209, the recommended port determination unit 10512 determines in S215 that there are more items that can be acquired by the MIB, and in S216 if it determines that there are more items that can be acquired by the WSD. Proceed to

  Finally, processing parts S211 to S213 determined from information stored in advance in the installer 10510 will be described.

  In S211, it is determined whether or not the factory shipment value of the WSD communication setting of the target printer is valid based on local information. Note that the processing is switched based on the determination in S211 so that the user can complete the installation with a single search as much as possible for a printer having a setting value for which the factory shipment value of the WSD communication setting is invalid in the standard setup. is there. If it is assumed that the frequency with which the user changes the setting value of the printer from the factory shipment value is low, the printer search unit 10511 of S105 determines that the printer whose factory shipment value of the WSD communication setting is invalid is the WSD communication setting unless the determination in S211 is made. It is hard to be caught in search by. As a result, it is determined No in S113, and the user is forced to change the setting on the printer side in S115. Since the search in S105 is required again after the setting on the printer side in S115 is changed, the user cannot complete the installation with a single search. Therefore, the recommended port is set as the TCP port for the printer that cannot perform WSD communication at present (No in S204) and the factory shipment value of the WSD communication setting is invalid (No in S211) (S215).

  In step S212, the recommended port determination unit 10512 determines whether the target printer supports device information notification using WSD. As a result of the determination, the recommended port determination unit 10512 proceeds to S213 if it is determined that it is supported, and proceeds to S215 if it is not determined that it is supported. As a method of determining whether or not the target printer supports device information notification using WSD, it is stored in advance in the installer 10510 that indicates whether or not device information notification using WSD is supported for each target printer name. Judgment from information. Note that the process is switched according to the determination in S212 because device information notification is available for printers that have been commercialized in an era when WSD is not yet widespread, even if the print control system of the WSD protocol is supported. This is because some printers do not support the system, and such printers cannot obtain device information using WSD.

  In step S213, the recommended port determination unit 10512 determines, based on the target printer name, which protocol, MIB or WSD, can acquire more types of device information attribute items from the target printer. As a specific determination method, information stored in advance in the installer 10510 that indicates either MIB or WSD as a protocol of a method having a large number of device information attribute items that can be acquired from the target printer for each target printer name. Judgment from. In S214, the recommended port determination unit 10512 proceeds to S215 if the determination result in S213 is MIB, and proceeds to S216 if it is WSD.

  As described above, by determining the communication protocol with the higher device information attribute item notification capability for the printer that is the output destination of the printer driver to be installed, and determining the corresponding installation port according to the result It is possible to provide an installation flow in which automatic setting of the printer driver is optimized for the target printer.

[Embodiment 3]
In the first embodiment, the MIB specification version and WSD specification version values are acquired from the target printer in S209 of FIG. 4, and the protocol with the larger number of device information attribute items that can be acquired is determined according to the table shown in FIG. It was something to do. However, various commands for acquiring device information in MIB and WSD were actually sent to the target printer, and as a result of the response, which protocol was able to acquire more effective device information attribute items It may be determined by comparing these. According to this method, in the determination process of S108 in FIG. 3, the determination is delayed by waiting for responses to various commands in each protocol transmitted to the target printer, but the table as shown in FIG. There is no need to hold it.

(Other examples)
The present invention supplies a program that realizes one or more functions of the above-described embodiments to a system or apparatus via a network or a storage medium, and one or more processors in a computer of the system or apparatus read and execute the program This process can be realized. It can also be realized by a circuit (for example, ASIC) that realizes one or more functions.

Claims (11)

Search means for searching for printers on the network using multiple protocols;
Among the printers found in the search, a reception means for accepting selection of a printer to install a printer driver;
Determining means for determining a port used by the printer driver;
A port used by the printer driver is determined to be a specific port by the determining unit, and the printer to install the printer driver is not found by the search unit by searching for a specific protocol corresponding to the specific port An information processing apparatus comprising: a display unit configured to display a screen that prompts the user to change a setting related to the specific protocol.   The determination unit determines whether the model of the printer in which the printer driver is installed is a model that determines the port used by the printer driver as the specific port, and determines that the model is determined as the specific port The information processing apparatus according to claim 1, wherein a port used by the printer driver is determined as the specific port.   The information according to claim 1, wherein the display unit displays a confirmation screen including a combination of the printer in which the printer driver is installed and the port used in the determined printer driver. Processing equipment.   The display means is a screen for prompting the setting change regarding the specific protocol of the printer, and accepts an instruction to search again for the printer by the search means or to change the specific port to another port. The information processing apparatus according to any one of claims 1 to 3, wherein the information processing apparatus is characterized in that: Transmitting means for transmitting a command for inquiring a recommended protocol to the printer,
The information processing apparatus according to claim 1, wherein the determination unit determines a port to be used by the printer driver based on a response to the command. On the computer,
A search process for searching for printers on the network using multiple protocols;
Among the printers found in the search, a reception process for accepting selection of a printer to install a printer driver;
A determination step of determining a port to be used by the printer driver;
The port used by the printer driver is determined to be a specific port by the determining step, and the printer to install the printer driver is not found by searching for a specific protocol corresponding to the specific port by the searching step A display step of displaying a screen for prompting a change of settings related to the specific protocol of the printer.   The determining step determines whether the model of the printer in which the printer driver is installed is a model that determines the port used by the printer driver as the specific port, and determines that the model is determined as the specific port The program according to claim 6, wherein when the printer driver is used, a port used by the printer driver is determined as the specific port.   8. The program according to claim 6, wherein the display step displays a confirmation screen including a combination of the printer to install the printer driver and the port used by the determined printer driver. .   The display step is a screen prompting the setting change regarding the specific protocol of the printer, and the search step re-searches the printer or accepts an instruction to change the specific port to another port. The program according to any one of claims 6 to 8, characterized in that: In the computer,
Sending a command for inquiring a recommended protocol to the printer, and
The program according to claim 6, wherein the determining step determines a port to be used by the printer driver based on a response to the command. A search process for searching for printers on the network using multiple protocols;
Among the printers found in the search, a reception process for accepting selection of a printer to install a printer driver;
A determination step of determining a port to be used by the printer driver;
The port used by the printer driver is determined to be a specific port by the determining step, and the printer to install the printer driver is not found by searching for a specific protocol corresponding to the specific port by the searching step A display step of displaying a screen for prompting a change of settings related to the specific protocol of the printer.

Images