JP7151355B2 - Printer and computer program for printer - Google Patents

Description

This specification discloses a printer that performs printing according to print data received from a terminal device.

Japanese Unexamined Patent Application Publication No. 2002-200001 discloses a technique for causing a screen forming apparatus to perform printing according to IPP (abbreviation of Internet Printing Protocol). When the image forming apparatus receives a request for transmission of capability information from the terminal, the image forming apparatus transmits capability information of the image forming apparatus to the terminal. Upon receiving the capability information from the image forming apparatus, the terminal displays the IPP setting screen. The user of the terminal makes print settings on the IPP setting screen and presses a print start button on the IPP setting screen to cause the image forming apparatus to execute printing.

JP 2016-126444 A

Capability information transmitted from the image forming apparatus to the terminal according to the IPP usually includes printing conditions available to the image forming apparatus. However, in the image forming apparatus, the printing conditions that the user is permitted to use can be set for each user. For example, a specific user may be permitted to use only some of the above printing conditions. In this case, when the capability information including the printing conditions is transmitted to the terminal of the specific user, the capability information including the printing conditions that the specific user is not permitted to use is transmitted to the terminal. Therefore, print settings including print conditions that are not permitted to be used by a specific user may be made.

This specification provides a technology that can prevent a user from selecting print settings that include print conditions that the user is not permitted to use.

The printer disclosed by this specification corresponds to a print execution unit, user information identifying each of a plurality of users, and printing condition information indicating printing conditions that the user is permitted to use. and a request receiving unit for receiving a capability information request according to a predetermined communication protocol from a terminal device, the capability information request requesting transmission of printing conditions that can be used by the printer. and from the memory, when the capability information request includes specific user information identifying a specific user, a specific print associated with the specific user information. an acquisition unit configured to acquire the specific printing condition information, which is condition information and indicates a specific printing condition that is a part of the printing conditions that can be used by the printer; a response transmission unit configured to transmit a capability information response including the capability information response to the terminal device; a print data receiving unit for receiving specific print data according to the selected print settings from the terminal device when selected by the specific user; and executing printing according to the specific print data. and a print control unit that causes the unit to execute.

According to the above configuration, the printer receives the capability information request from the terminal device, and when the capability information request includes the specific user information, the printer reads from the memory the specific printing condition information associated with the specific user information. to get Then, the printer transmits to the terminal device a capability information response including the acquired specific printing condition information. In this case, a specific user who uses the terminal device selects print settings that are part of the print conditions available to the printer and that conform to specific print conditions that the specific user is permitted to use. can be done. Then, the printer receives specific print data according to the selected print settings from the terminal device, and executes printing according to the specific print data. In this way, the printer can prevent a specific user from selecting print settings that include print conditions that the specific user is not permitted to use.

A control method for implementing the above printer, a computer program, and a computer-readable recording medium storing the computer program are also novel and useful. A communication system comprising the above printer and terminal device is also novel and useful.

1 shows the configuration of a communication system; 4 shows a flowchart of IPP processing. 4 shows a flow chart of restriction processing. FIG. 10 is a sequence diagram of case A in which printing is executed according to PDF data; FIG. 10 is a sequence diagram of case B in which printing according to web page data is restricted; FIG. 10 is a sequence diagram of case C in which printing according to web page data is executed; FIG. 10 is a sequence diagram of case D in which printing is executed according to PDF data; FIG. 11 shows a flow chart of IPP processing of the second embodiment. FIG. FIG. 10 is a sequence diagram of case D in which printing is executed according to PDF data; FIG. 10 is a sequence diagram of case E in which printing is executed according to PDF data; An example of each screen displayed on a PC is shown. FIG. 4 shows a sequence diagram of a comparative example;

(First embodiment)
(Configuration of communication system 2; Fig. 1)
As shown in FIG. 1, the communication system 2 includes a printer 10 and a plurality of PCs 100A-100D. The printer 10 and the PCs 100A to 100D belong to the same LAN (abbreviation for Local Area Network) 4, and can communicate with each other via the LAN 4. FIG.

(Configuration of Printer 10)
The printer 10 is a peripheral device (that is, a peripheral device of the PCs 100A to 100D) capable of executing printing functions. Note that the printer 10 may be a multi-function device capable of executing a scanning function, a FAX function, etc. in addition to the printing function. The printer 10 includes an operation unit 12 , a display unit 14 , a print execution unit 16 , a communication interface (hereinafter the interface will be referred to as “I/F”) 20 , and a control unit 30 .

The operation unit 12 has a plurality of keys. A user can input various instructions to the printer 10 by operating the operation unit 12 . The display unit 14 is a display for displaying various information. The display unit 14 also functions as a so-called touch panel (that is, an operation unit). The print execution unit 16 is a printing mechanism such as an inkjet method or a laser method. Communication I/F 20 is connected to LAN 4 . The communication I/F 20 may be a wireless I/F or a wired I/F.

The control unit 30 has a CPU 32 and a memory 34 . The CPU 32 executes various processes according to programs 36 stored in the memory 34 . The memory 34 is composed of a volatile memory, a nonvolatile memory, or the like. The memory 34 stores a printing condition table 38. FIG.

The printing condition table 38 stores a user ID, printing condition permission information, and extension restriction information (hereinafter referred to as “restriction information”) in association with each other. Each piece of information in the printing condition table 38 is registered in advance by the administrator of the printer 10 . A user ID is information for identifying a user. The user IDs "U1" and "U2" are user IDs for identifying individual users, and the user ID "Public" is an ID indicating general users who are all users other than individual users. .

The permission information of the printing conditions includes, for each of the printing conditions “double-sided” and “color” that can be used by the printer 10, “OK” indicating that the use of the printing conditions is permitted, and and "NG" indicating that it is not permitted. Here, "double-sided" means double-sided printing, and "color" means color printing. Although not shown, the printer 10 can also use the printing conditions "single-sided" and "monochrome." Here, "single-sided" means single-sided printing, and "monochrome" means monochrome printing. All users including general users are permitted to use the printing conditions "monochrome" and "single-sided".

The restriction information is set to either "Yes" indicating that the extension restriction function is set or "No" indicating that the extension restriction function is not set. The extension restriction function is used in communication with a terminal device (for example, PC 100A) using IPP (abbreviation of Internet Printing Protocol), if the Job name sent from the terminal device does not include an extension, This is a function that restricts execution of printing according to identified print data. That is, when the Job name sent from the user with the restriction information “Yes” does not include an extension, the execution of printing is restricted, and the Job name sent from the user with the restriction information “No” has the extension is not included, the execution of printing is not restricted.

(Configuration of PC100A to 100D)
The PCs 100A to 100C are used by users other than the administrator of the printer 10. FIG. User IDs "U1", "U2", and "U3" for identifying users who use the PCs are stored in the PCs 100A to 100C, respectively. The PC 100D is a PC used by an administrator of the printer 10. FIG. The PCs 100A-100D are equipped with an IPP program (not shown) installed from a server on the Internet. The IPP program is a program for generating an IPP command according to HTTP (abbreviation for Hyper Text Transfer Protocol) and transmitting the command to the printer 10 . The server described above is provided by a company different from the vendor of the printer 10, but may be provided by the vendor of the printer 10 in a modified example. PCs 100A-100D may support IPP without installing an IPP program from a server.

(IPP treatment; Fig. 2)
Next, IPP processing executed by the CPU 32 of the printer 10 will be described with reference to FIG. When the power of the printer 10 is turned on by the user, the process of FIG. 2 is started. The IPP process is a process of executing printing in response to receiving a command according to IPP (hereinafter sometimes referred to as an "IPP command"). All the following communications performed by the printer 10 are performed via the communication I/F 20 . Therefore, the description of "via the communication I/F 20" will be omitted below.

In S10, the CPU 32 monitors reception of a capability information request from the PC. Capability information request is an IPP command for requesting transmission of a capability information response containing all printing conditions available to printer 10 (i.e., "single-sided", "duplex", "monochrome", and "color"). be. When the CPU 32 receives the capability information request from the PC (YES in S10), the process proceeds to S20. Hereinafter, the PC that is the transmission source of the capability information request will be referred to as the "target PC". The capability information request is a request according to IPP using HTTP, and includes an HTTP header and body. The body of the capability information request describes the user ID used to log in to the target PC.

At S<b>20 , the CPU 32 determines whether or not the user ID described in the body of the capability information request received at S<b>10 is registered in the printing condition table 38 in the memory 34 . If a user ID that matches the user ID described in the body part is registered in the printing condition table 38 (YES in S20), the CPU 32 advances to S22 to match the user ID described in the body part. If the user ID to be printed is not registered in the printing condition table 38 (NO in S20), the process proceeds to S30.

In S<b>30 , the CPU 32 determines whether or not the user ID “Public” is registered in the printing condition table 38 . The CPU 32 proceeds to S22 when the user ID "Public" is registered (YES in S30), and proceeds to S32 when the user ID "Public" is not registered (NO in S30).

In S32, the CPU 32 transmits an error notification to the target PC. The error notification includes a message indicating that printing using IPP is not permitted. When S32 ends, the process returns to S10.

In S22, the CPU 32 acquires printing condition information to be transmitted to the target PC. If the CPU 32 determines YES in S20, the CPU 32 uses the user ID described in the body of the capability information request received in S10 to acquire the printing condition information. Specifically, the CPU 32 identifies a printing condition indicating permission information “OK” associated with the user ID in the printing condition table 38 . Then, the CPU 32 acquires the specified printing conditions and the printing condition information indicating "single-sided" and "monochrome". If the CPU 32 determines YES in S30, the CPU 32 uses the user ID "Public" to acquire the printing condition information. Specifically, the CPU 32 identifies a printing condition indicating permission information “OK” associated with the user ID “Public” in the printing condition table 38 . Then, the CPU 32 acquires the specified printing conditions and the printing condition information indicating "single-sided" and "monochrome".

In S24, the CPU 32 transmits a capability information response including the printing condition information acquired in S22 to the target PC. As a result, the user of the target PC selects the print settings to be used for actual printing from among the print conditions indicated by the print condition information included in the capability information response.

In S40, the CPU 32 receives a Job verification request from the target PC. The job verification request is an IPP command that requests the printer 10 to execute printing. This command is for querying The job verification request is a request conforming to IPP using HTTP, and includes an HTTP header and body. The body of the job verification request describes the user ID used to log in to the target PC and print setting information indicating print settings selected by the user. First, the CPU 32 uses the user ID described in the body portion to identify the printing condition information, as in S22. Then, the CPU 32 determines that the print settings described in the body part match the specified print condition information, and proceeds to S42. In this embodiment, a capability information response including the printing condition information specified in S22 is transmitted to the target PC in S24, and the user selects print settings from the printing condition information. For this reason, the CPU 32 determines that the print settings described in the Job verification request match the print conditions available to the user (that is, determines that the verification according to the Job verification request has succeeded). . That is, in this embodiment, the verification in response to the Job verification request does not fail.

The body part of the job verification request further describes a job name that identifies the print data. For example, when PDF data having the file name "aaa.pdf" is selected as a print target on the target PC, the Job name is "aaa.pdf" that matches the file name. In addition, when a web page corresponding to the URL (Uniform Resource Locator) "http://aaa/bbb.co.jp" is selected as a print target on the target PC, the Job name is the page of the URL. It is "bbb" which matches the title. That is, when the user of the target PC desires to print the web page, the Job name does not include the extension. In S42, the CPU 32 transmits a Job verification response including the status "SUCCESS" to the target PC.

In S44, the CPU 32 receives a job generation request including print setting information from the target PC. A job generation request is an IPP command that requests the printer 10 to generate a job ID that identifies a print job.

In S46, the CPU 32 generates a JobID, which is a unique character string, and transmits a Job generation response including the JobID to the target PC. As a result, print data identified by the JobID is generated by the target PC. Here, the target PC generates print data according to the print settings selected by the user. Specifically, when the print setting indicates "color", the target PC generates print data representing a color image, and when the print setting indicates "monochrome", the target PC generates print data representing a monochrome image. be. Note that there is no difference in the image represented by the print data for "double-sided" and "single-sided".

In S48, the CPU 32 receives, from the target PC, the JobID that matches the JobID included in the Job generation response transmitted in S46, and the print data.

At S50, the CPU 32 determines whether or not the Job name described in the body of the Job verification request received at S40 includes an extension. If the Job name includes an extension (YES in S50), the CPU 32 proceeds to S52, and if the Job name does not include an extension (NO in S50), the CPU 32 proceeds to S60.

In S52, the CPU 32 supplies the print data received in S48 to the print execution unit 16, and causes the print execution unit 16 to execute printing according to the print data. If the print setting described in the body of the job verification request received in S44 indicates "single-sided", the CPU 32 instructs the print execution unit 16 to print on only one side of the print medium. , "double-sided", the print execution unit 16 is instructed to print on both sides of the print medium.

Also, in S60, the CPU 32 determines whether or not the extension restriction function is set for the user of the target PC. The CPU 32 identifies, from the printing condition table 38, restriction information associated with the user ID described in the body of the Job verification request received in S40, and determines if the identified restriction information is "present". determine whether there is. If the specified restriction information is "present", the CPU 32 determines YES in S60, and proceeds to S62. proceed to

In S62, the CPU 32 executes a restriction process (see FIG. 3). The restriction process is a process of restricting execution of printing according to the print data received in S48, specifically, a process of inquiring of the administrator whether or not to permit execution of printing.

In S70, the CPU 32 determines whether execution of printing is permitted in the restriction processing of S62. If the CPU 32 determines that the execution of printing is permitted in the restriction process (ie, "printing OK") (YES in S70), the CPU 32 proceeds to S52, and the execution of printing is not permitted in the restriction processing (ie, "printing is permitted"). NG") (NO in S70), the process proceeds to S72.

In S72, the CPU 32 transmits an error notification to the target PC without causing the print execution unit 16 to print according to the print data. The error notification is a notification containing a message indicating that printing according to web page data is prohibited.

(Restriction processing; Fig. 3)
Next, with reference to FIG. 3, the limiting process executed in S62 of FIG. 2 will be described. In S90, the CPU 32 transmits an inquiry notification to the administrator PC with the IP address or mail address of the administrator PC (that is, the PC 100D) predetermined in the memory 34 as the destination. The inquiry notification is a notification indicating that execution of printing according to print data identified by a Job name without an extension is requested. The inquiry notification is a notification for inquiring of the administrator whether or not to permit execution of printing according to the print data identified by the Job name without the extension. The inquiry notification includes the user ID and Job name described in the body of the Job verification request received in S40.

At S100, the CPU 32 determines whether or not a PIN code has been received from the administrator's PC. When the PIN code is received from the administrator PC (YES in S100), the CPU 32 proceeds to S102, and when the restriction notification is received from the administrator PC (NO in S100), the CPU 32 proceeds to S110. The PIN code is information sent from the administrator's PC when printing is permitted by the administrator, and the restriction notification is sent from the administrator's PC when printing is not permitted by the administrator. information.

In S102, CPU 32 transmits input screen data for representing an input screen including a PIN code input field to the target PC. In a modified example, the CPU 32 may cause the display unit 14 to display an input screen including a PIN code input field.

In S104, the CPU 32 determines whether or not the PIN code has been received from the target PC. When the PIN code is received from the target PC (YES in S104), the CPU 32 proceeds to S106. On the other hand, when the predetermined time has elapsed since the input screen data was transmitted without the PIN code being received, the CPU 32 determines NO in S104 and proceeds to S110.

At S106, the CPU 32 determines whether or not the PIN code received at S100 and the PIN code received at S104 match. The CPU 32 proceeds to S108 if the two PIN codes match (YES in S106), and proceeds to S110 if the two PIN codes do not match (NO in S106).

In S108, the CPU 32 determines that execution of printing is permitted (that is, "printing OK"). When S108 ends, the process of FIG. 3 ends.

In S110, the CPU 32 determines that execution of printing is not permitted (that is, "printing NG"). When S110 ends, the process of FIG. 3 ends.

(Specific cases; Figures 4 to 6)
Next, with reference to FIGS. 4 to 6, specific cases A to C realized by the processes of FIGS. 2 and 3 will be described.

(Case A; Fig. 4)
Case A in which printing is performed according to PDF data will be described with reference to FIG. In the initial state of case A, the printing condition table 38 is in the state shown in FIG. The information "OK", the permission information "NG" for the print condition "color", and the restriction information "yes" are associated with each other. Further, in the initial state of case A, the PDF data "aaa.pdf" is displayed on the PC 100A.

When the PC 100A receives the instruction to display the print setting screen at T10, at T12, the PC 100A transmits to the printer 10 a capability information request in which the user ID "U1" is described in the body.

At T12, when the printer 10 receives the capability information request from the PC 100A (YES in S10 of FIG. 2), the user ID matching the user ID "U1" described in the body of the capability information request is registered in the printing conditions table. 38 (YES in S20), and obtains the printing condition information corresponding to the user ID "U1" (S22). The printer 10 identifies the printing condition "double-sided" indicating permission information "OK" associated with the user ID "U1" in the printing condition table 38, and selects "single-sided", "double-sided", and "monochrome". The indicated printing condition information is acquired (S22). That is, "color" is not included in the printing condition information. Then, at T14, the printer 10 transmits a capability information response including the acquired printing condition information to the PC 100A (S24).

Upon receiving the capability information response from the printer 10 at T14, the PC 100A displays the print setting screen D1 at T16. As shown in FIG. 11A, screen D1 includes a message for prompting print settings, three check boxes corresponding to "single-sided", "double-sided", and "monochrome", and an OK button. , and a cancel button. The check boxes corresponding to "single-sided" and "monochrome" are checked in advance. Also, the operation to the check box corresponding to "monochrome" is disabled. PC 100A accepts the addition of a check mark to the check box corresponding to "double-sided" at T18, and accepts the operation of the OK button at T20. “monochrome”) and the job name “aaa.pdf” in the body portion are sent to the printer 10 .

When the printer 10 receives the job verification request from the PC 100A at T30 (S40), the printer 10 changes the print settings "double-sided" and "monochrome" to the print conditions ("single-sided", "double-sided", and " Monochrome"), and at T32, a Job verification response including the status "SUCCESS" is sent to PC 100A (S42).

When the PC 100A receives the job verification response from the printer 10 at T32, it determines that the verification by the printer 10 is successful because the response includes the status "SUCCESS", and transmits a job generation request to the printer 10 at T40. .

When the printer 10 receives the Job generation request from the PC 100A at T40 (S44), at T42 it generates JobID "X1" which is a unique character string, and at T44 it generates a Job including the already generated JobID "X1". A response is sent to PC 100A (S46).

When PC 100A receives the Job generation response from printer 10 at T44, PC 100A extracts JobID "X1" from the response, converts PDF data "aaa.pdf" into print data representing a monochrome image, and extracts JobID “X1” and the converted print data are sent to the printer 10 .

When the printer 10 receives the JobID "X1" and the print data from the PC 100A at T50 (S48), the Job name "aaa.pdf" described in the body of the Job verification request received at T30 is It is determined that the extension "pdf" is included (YES in S50), and in T52 double-sided printing of the print data represented by the monochrome image is executed (S52).

The PC 100A transmits to the printer 10 a job status request including JobID "X1" at T60. A Job status request is an IPP command for confirming the printing status of the JobID in the request. The PC 100A periodically transmits a job status request after transmitting the print data until receiving a job status response including the status "printing completed".

When the printer 10 receives the job status request from the PC 100A at T60, the printer 10 is currently printing the print data corresponding to the JobID "X1". Send. When the printer 10 receives a job status request from the PC 100A at T70 after printing of the print data received at T50 is completed, the printer 10 transmits a job status response including the status "printing completed" to the PC 100A at T72. As a result, transmission of job status requests from the PC 100A to the printer 10 is stopped.

(Effect of case A)
Before describing the effects of case A, the operation of the printer 10A of the comparative example will be described with reference to FIG. In the printer 10A of the comparative example, the permission information for the printing conditions "double-sided" and "color" associated with the user ID "U1" are "OK" and "NG", respectively. T610 and T612 are the same as T10 and T12 in FIG. 4, respectively. When the printer 10A of the comparative example receives the capability information request from the PC 100A in T612, the printer 10A is capable of specifying all the print conditions available for the printer 10A (i.e., "single-sided", "double-sided", "monochrome", and "color"). Send an information response to PC 100A. That is, the printer 10A also transmits the printing condition (color) whose permission information of the printing condition associated with the user ID "U1" is "NG". In this case, the PC 100A displays the print setting screen D5 at T616. As shown in FIG. 11E, screen D5 is similar to screen D1 except that it has a check box corresponding to "color". In T618, the PC 100A accepts the addition of checks to the check boxes corresponding to "color" and "double-sided", and in T620, upon accepting the operation of the OK button, transmits a job verification request to the printer 10A. In the request, the user ID "U1", print setting information (print settings "color" and "double-sided"), and job name "aaa.pdf" are described in the body. When the printer 10A receives the job verification request from the PC 100A at T630, the print setting "color" described in the body of the request matches the print condition information corresponding to the user ID "U1". It determines not to, and at T632, it transmits a Job verification response including the status "ERROR" to PC 100A. That is, the printer 10A cannot print according to the print data.

On the other hand, as shown in case A, the printer 10 receives a capability information request from the PC 100A (T12). Using the printing condition table 38, the printing condition information (“single-sided”, “double-sided”, and “monochrome”) associated with the user ID “U1” is acquired. The printer 10 then transmits a capability information response including the acquired printing condition information to the PC 100A (T14). In this case, the user using the PC 100A can perform printing that conforms to the printing conditions (“single-sided”, “double-sided”, “monochrome”) that the user is permitted to use among all the printing conditions available to the printer 10. You can choose your settings. Then, the printer 10 receives the print setting information (“double-sided”, “monochrome”) selected by the user from the PC 100A (T32), receives the print data (T50), and follows the received print data. Print is executed (T52). Therefore, the printer 10 can prevent the user from selecting print settings including print conditions that the user is not permitted to use. That is, the printer 10A can appropriately execute printing according to the print data.

(Case B; Fig. 5)
Next, with reference to FIG. 5, case B in which printing according to web page data is restricted will be described. The initial state of case B is similar to the initial state of case A. In addition, in the initial state of case B, the web page "http://aaa/bbb.co.jp" is displayed on PC 100A.

T110 to T150 are the same as T10 to T50 in FIG. 4 except that the Job name described in the body of the Job verification request is "bbb" and the JobID is "X2". . PC 100A converts the web page “http://aaa/bbb.co.jp” into print data representing a monochrome image, and transmits the print data to printer 10 at T150.

When the printer 10 receives the JobID "X2" and the print data from the PC 100A at T150 (S48 in FIG. 2), the job name "bbb" described in the body of the Job verification request received at T130 is expanded. It is determined that the child is not included (NO at S50), it is determined that the restriction information associated with the user ID "U1" is "present" in the printing condition table 38 (YES at S60), and at T160, An inquiry notification including the user ID "U1" and the job name "bbb" described in the body of the job verification request received at T130 is sent to the PC 100D (S90). This allows the administrator to know that the user of PC 100A desires to print the web page.

When PC 100D receives an operation for permitting printing of web page data, PC 100D generates a PIN code, and at T162, transmits the PIN code to PC 100A.

Upon receiving the PIN code from PC 100D at T162, PC 100A displays the PIN code at T164. This allows the user of PC 100A to know the PIN code transmitted from PC 100D. T166 is the same as T162 except that the communication target is the printer 10 .

When the printer 10 receives the PIN code from the PC 100D at T166 (YES at S100), it stores the PIN code at T168 and transmits the input screen data to the PC 100A at T170 (S102).

Upon receiving the input screen data from the printer 10 at T170, the PC 100A displays the input screen at T172. When the PC 100A accepts the input of the PIN code at T174, the PC 100A transmits the input PIN code to the printer 10 at T176.

When the printer 10 receives the PIN code from the PC 100A at T176 (YES at S104), the printer 10 determines that the PIN code stored at T168 matches the PIN code received at T176 (YES at S106), and prints. is permitted (YES in S108 and S70), and in T180, double-sided printing of the print data represented by the monochrome image is executed (S52). T190 and T192 are the same as T70 and T72 in FIG. 4, respectively.

(Effect of case B)
As shown in case A, when the Job name "aaa.pdf" described in the body of the Job verification request received from PC 100A includes an extension (T30 in FIG. 4), printer 10 Printing is executed according to the print data received from PC 100A (T52). Further, as shown in case B, the printer 10 outputs the print data received from PC 100A when the Job name "bbb" in the Job verification request received from PC 100A does not include an extension (T130 in FIG. 5). Restrict execution of printing according to data. Therefore, the printer 10 can switch between executing printing and restricting printing depending on whether the job name includes an extension in consideration of the situation where the job name that identifies the print data does not include the extension. can.

Also, when the job name "bbb" described in the body of the job verification request received from PC 100A does not include an extension (T130 in FIG. 5), printer 10 transmits an inquiry notification to PC 100D. (T160). When the PIN code is received from PC 100D (T166), printer 10 executes printing according to the print data received at T150 (T180). Therefore, the printer 10 is permitted to print the print data by the administrator of the printer 10 even in a situation where the user of the PC 100A is restricted from printing according to the print data identified by the Job name that does not include the extension. If so, printing can be executed according to the print data.

(Case C; Fig. 6)
Next, case C in which printing is executed according to web page data will be described. The initial state of case C is similar to the initial state of case A. That is, the user ID "U2" is registered in the printing condition table 38, and the user ID includes permission information "NG" for the printing condition "double-sided" and permission information "OK" for the printing condition "color". , and restriction information “no” are associated with each other.

T210 and T212 are the same as T10 and T12 in FIG. 4 except that the communication target is the PC 100B. At T212, when the printer 10 receives the capability information request from the PC 100B (YES in S10 of FIG. 2), the printer 10 receives the user ID "U2" described in the body of the capability information request, (YES at S20), and obtains the printing condition information corresponding to the user ID "U2" (S22). The printer 10 identifies "color" indicating the permission condition "OK" associated with the user ID "U2" in the printing condition table 38, and performs printing indicating "single-sided", "monochrome", and "color". Get condition information. That is, "double-sided" is not included in the printing condition information. Then, in T214, the printer 10 transmits a capability information response including the acquired printing condition information to the PC 100B (S24).

Upon receiving the capability information response from the printer 10 at T214, the PC 100B displays the print setting screen D2 at T216. As shown in FIG. 11B, screen D2 includes a message for prompting print settings, three check boxes corresponding to "single-sided", "monochrome", and "color", and an OK button. , and a cancel button. The check boxes corresponding to "single-sided" and "monochrome" are checked in advance. Also, the operation to the check box corresponding to "single-sided" is disabled. At T218, the PC 100B accepts the addition of a check mark to the check box corresponding to "color", and at T220 accepts the operation of the OK button. T230 to T250 are the same as T130 to T150 in FIG. 5 except that the communication target is the PC 100B, the print settings are "single-sided" and "color", and the JobID is "X3". be. PC 100B transmits Job ID “X3” and print data representing a color image to printer 10 at T250.

When the printer 10 receives the Job ID "X3" and the print data from the PC 100B at T250 (S48 in FIG. 2), the Job name "bbb" described in the body part of the Job verification request received at T230 is It determines that the extension is not included (NO at S50), and determines that the restriction information associated with the user ID "U2" in the printing condition table 38 is "None" (NO at S60). At T260, the printer 10 executes single-sided printing of the print data representing the color image (S52). T270 and T272 are the same as T70 and T72 in FIG. 4, respectively.

(Effect of case C)
When the restriction information associated with the user ID "U2" for identifying the user of PC 100B is "no", the printer 10 receives the job name "bbb" described in the body of the job verification request from PC 100B. ” does not include an extension, printing is executed according to the print data identified by the Job name (T260). Therefore, the printer 10 can switch whether to execute print data identified by a Job name without an extension or restrict it for each user.

(Case D; Fig. 7)
Next, with reference to FIG. 7, case D in which printing according to PDF data is executed will be described. The initial state of case D is similar to the initial state of case A. That is, the user ID "U3" is not registered in the printing condition table 38, but the user ID "Public" is registered. Permission information “NG” for the print condition “color” is associated with restriction information “yes”.

T310 and T312 are the same as T10 and T12 in FIG. 4 except that the communication target is the PC 100C. At T312, when the printer 10 receives the capability information request including the user ID "U3" from the PC 100C (YES in S10), the user ID "U3" described in the body part of the capability information request is registered in the printing condition table. 38 (NO in S20), and determines that the user ID "Public" is registered in the printing condition table 38 (YES in S30). The printer 10 identifies that there is no permission information associated with the user ID "Public" in the printing condition table 38, and acquires printing condition information indicating "single-sided" and "monochrome" (S22). . That is, "double-sided" and "color" are not included in the printing condition information. Then, in T214, the printer 10 transmits a capability information response including the acquired printing condition information to the PC 100C.

Upon receiving the capability information response from the printer 10 at T316, the PC 100C displays the print setting screen D3 at T316. As shown in FIG. 11C, screen D3 includes a message indicating print settings, two check boxes corresponding to "single-sided" and "monochrome", an OK button, and a cancel button. The check boxes corresponding to "single-sided" and "monochrome" are checked in advance, and operations on the check boxes are disabled. Therefore, the user can operate only the OK button and the cancel button. T320 to T352, T370, and T372 are the same as in FIG. It is the same as T20 to T52, T70 and T72.

(Effect of this embodiment)
The printer 10 receives the capability information request from the target PC (YES in S20 of FIG. 2), and if the capability information request includes the user ID, the printer 10 uses the printing condition table 38 in the memory 34 to obtain the user information. Acquire the associated printing condition information (S22). The printer 10 then transmits a capability information response including the acquired printing condition information to the terminal device (S24). In this case, the user who uses the target PC can select print settings that are part of the print conditions available to the printer 10 and that match the print conditions that the user is permitted to use. Then, the printer 10 receives print data according to the selected print settings from the target PC (S48), and executes printing according to the print data (S52). In this way, the printer 10 can prevent the user of the target PC from selecting print settings that include print conditions that the user is not permitted to use.

(correspondence relationship)
The PCs 100A and 100B are examples of "terminal devices." A user ID described in the body part of the capability information request is an example of "user information". The user of PC 100A and the user of PC 100B are examples of "specific users." The printing conditions “double-sided”, “single-sided”, “monochrome”, and “color” are examples of “printing conditions available for the printer”. The printing condition information indicating the printing conditions ``double-sided'', ``single-sided'' and ``monochrome'', and the printing condition information indicating the printing conditions ````single-sided'', ``monochrome'' and ``color'' are included in the ``specific printing condition information is an example of An extension is an example of a 'predetermined data format'.

S10, S22, and S24 in FIG. 2 are examples of processing executed by the 'request receiving unit', the 'acquisition unit', and the 'response transmitting unit', respectively. S52 in FIG. 2 is an example of processing executed by the "print control unit".

(Second embodiment)
As shown in FIG. 1, in this embodiment, the printing condition table 38 of the printer 10 stores user IDs, passwords, permission information of printing conditions, and restriction information in association with each other. A password is information used for user authentication. Also, the CPU 32 of the printer 10 executes the IPP process of FIG. 8 instead of the IPP process of FIG. In addition, below, a user ID and a password may be generically described as "user information."

(IPP treatment; Fig. 8)
The IPP process executed by the CPU 32 of the printer 10 will be described with reference to FIG. S210 is the same as S10 in FIG. As described above, the capability information request is a request according to IPP using HTTP, and includes an HTTP header and body. A user ID and a password can be described in the header of the capability information request. The user ID and password are described only when the user of the target PC has set the user ID and password to be described in the HTTP header of the IPP command.

At S220, the CPU 32 determines whether or not all the print condition information in the memory 34 are the same. The CPU 32 determines that all permission information corresponding to the printing condition "double-sided" is "OK" or "NG" and all permission information corresponding to the printing condition "color" is "OK" or "NG". If so, it is determined that the printing condition information is the same (YES in S220), skips S222 and S224, and proceeds to S226. On the other hand, if even one print condition permission information in the print condition table 38 is different, the CPU 32 determines that all the print condition information is not the same (NO in S220), and proceeds to S222.

At S222, the CPU 32 determines whether user information (that is, user ID and password) is described in the header portion of the capability information request received at S210. The CPU 32 proceeds to S224 if user information is described in the header portion (YES in S222), and proceeds to S230 if user information is not described in the header portion (NO in S222).

At S224, the CPU 32 executes user authentication using the user information described in the header portion of the capability information request. Specifically, the CPU 32 determines whether user information that matches the user information described in the header is registered in the printing condition table 38 . When the user information matching the user information in the header is registered in the printing condition table 38, the CPU 32 determines that the user authentication has succeeded (YES in S224), proceeds to S226, and determines that the user information described in the header is successful. If user information that matches the existing user information is not registered in the printing condition table 38, it is determined that user authentication has failed (NO in S224), and the process proceeds to S230.

In S230, the CPU 32 transmits the user information request to the PC that transmitted the capability information request. A user information request is a signal for requesting transmission of user information, and includes user information input screen data. As a result, the user information input screen D4 is displayed on the target PC. As shown in FIG. 11D, the screen D4 includes a message prompting user information input, a user name input field, a password input field, an OK button, and a cancel button. Therefore, the user of the target PC can enter the user ID and password in each input field even if the user ID and password to be described in the HTTP header of the IPP command are not set in the target PC. , the target PC can be made to transmit a capability information request in which the user ID and password are described in the header.

Also, in S226, the CPU 32 acquires printing condition information to be transmitted to the target PC. If the CPU 32 determines YES in S224, the CPU 32 uses the user information described in the header portion of the capability information request received in S210 to acquire the printing condition information. Specifically, the CPU 32 identifies a printing condition indicating permission information “OK” associated with the user information in the printing condition table 38 . Then, the CPU 32 acquires the specified printing conditions and the printing condition information indicating "single-sided" and "monochrome". Further, when the CPU 32 determines YES in S220, the CPU 32 acquires the printing condition information without using the user information. For example, the CPU 32 identifies a printing condition whose permission information is “OK” in the printing condition table 38 . Then, the CPU 32 acquires the specified printing conditions and the printing condition information indicating "single-sided" and "monochrome". S228 and S240 are the same as S24 and S40 in FIG. 2, respectively. S242, S244, and S250 are the same as S222, S224, and S230, respectively. S246 is the same as S42 in FIG. After that, when the same processes as S44 to S72 in FIG. 2 are executed, the process returns to S210.

(Specific cases; Figures 9 and 10)
Next, with reference to FIGS. 9 and 10, specific cases E and F realized by the processes of FIGS. 3 and 8 will be described.

(Case E; Fig. 9)
Case E in which printing is executed according to PDF data will be described with reference to FIG. In the initial state of case E, the printing condition table 38 is in the state shown in FIG. ”, permission information “NG” of the print condition “color”, and restriction information “present” are associated with each other. Also, in the PC 100A, a user ID "U1" and a "password" have already been set as user information to be described in the HTTP header of the IPP command. Further, in the initial state of case E, the PDF data "aaa.pdf" is displayed on the PC 100A.

T410 and T412 are the same as T10 and T12 in FIG. 4, respectively. In addition, in the capability information request of T412, the header part describes the user ID "U1" and the password "P1", and the body part describes the user ID "U1".

When the printer 10 receives the capability information request from the PC 100A in T412 (YES in S210 of FIG. 8), it determines that all the printing condition information in the memory 34 is not the same (NO in S220), and issues the capability information request. It is determined that the user ID "U1" and password "P1" are described in the header (YES in S222). Then, in T413, the printer 10 executes user authentication using the user ID "U1" and password "P1" (YES in S224), and prints the printing condition information indicating "single-sided", "double-sided", and "monochrome". (S226). T414 to T420 are the same as T14 to T20 in FIG.

When the PC 100A accepts the operation of the OK button at T420, it transmits a Job verification request to the printer 10 at T430. In the job verification request, the header part describes the user ID "U1" and the password "P1", and the body part describes the user ID "U1" and print setting information ("double-sided" and "monochrome"). and the Job name “aaa.pdf” are described.

Upon receiving the Job verification request from the PC 100A at T430, the printer 10 determines that the user ID "U1" and the password "P1" are described in the header part of the Job verification request (YES at S242), and at T431 , user authentication is executed using the user ID “U1” and password “P1” (YES in S244), and the print settings “double-sided” and “monochrome” are set to print conditions available to the user (“single-sided”, “ "Double-Sided" and "Monochrome"). Then, in T432, the printer 10 transmits a Job verification response including the status "SUCCESS" to the PC 100A (S246). Subsequent T440-T472 are similar to T40-T72, except that the JobID generated by the printer 10 is "X5".

(Case F; Fig. 10)
Next, with reference to FIG. 10, case F in which printing according to PDF data is executed will be described. In the initial state of case F, a user ID "U1" and a password "P1" are registered in the printing condition table 38, and the user ID includes permission information "OK" for the printing condition "double-sided" and printing condition " Permission information “NG” and restriction information “Yes” are associated with “Color”. A user ID "U2" and a password "P2" are registered in the printing condition table 38, and the user ID includes permission information "OK" for the printing condition "double-sided" and permission information for the printing condition "color". "NG" and restriction information "no" are associated. User information to be described in the HTTP header of the IPP command is not set in the PC 100A. Further, in the initial state of case F, the PDF data "aaa.pdf" is displayed on the PC 100A.

T510 and T512 are the same as T10 and T12 in FIG. 4, respectively. In addition, in the capability information request of T412, no user information is described in the header part, and the user ID "U1" is described in the body part.

When the printer 10 receives the capability information request from the PC 100A in T512 (YES in S210 of FIG. 8), it determines that all the printing condition information in the memory 34 is the same (YES in S220), and is "OK", and print condition information indicating "single-sided", "double-sided", and "monochrome" is acquired (S226). T514-T520 are the same as T14-T20 in FIG.

When the PC 100A accepts the operation of the OK button at T520, it transmits a Job verification request to the printer 10 at T530. In the job verification request, no user information is described in the header section, and the body section includes user ID "U1", print setting information ("double-sided" and "monochrome"), and job name "aaa. pdf” is described.

When the printer 10 receives the Job verification request from the PC 100A at T530 (S240), it determines that the user information is not described in the header part of the Job verification request (NO at S242), and at T532, the user input screen data to the PC 100A.

Upon receiving the user information request from the printer 10 at T532, the PC 100A displays the user information input screen D4 (see FIG. 11E) at T534. The PC 100A inputs the user ID "U1" and the password "P1" to the screen D4 in T536, and when the OK button in the screen D4 is operated in T538, the PC 100A transmits a job verification request to the printer 10 in T540. . In the request, the header part describes the user ID "U1" and the password "P1", and the body part describes the user ID "U1", print setting information ("double-sided" and "monochrome"), Job name "aaa.pdf" is described.

When the printer 10 receives the job verification request from the PC 100A at T540 (S240), the printer 10 determines that user information is described in the header portion of the job verification request (YES at S242). T541 and T542 are the same as T431 and T432 in FIG. 9, respectively. After that, the same processes as T40 to T72 in FIG. 4 are executed between the PC 100A and the printer 10. FIG.

(Effect of case F)
Printer 10 transmits a user information request to PC 100A when no user information is described in the header portion of the capability information request received from PC 100A in a situation where all print condition information in memory 34 is the same. Without doing so, it acquires the printing condition information, and transmits a capability information response including the specified printing condition information to the PC 100A (T514). Therefore, when all of the printing condition information is the same, the printer 10 can set the printing conditions (“single-sided”, “double-sided”, and , “monochrome”) can be transmitted to the PC 100A. Therefore, user convenience is improved. Also, when the printer 10 receives the capability information request from the PC 100A (T510), the user has input an instruction to display the print setting screen, but the instruction to cause the printer 10 to execute printing has not yet been entered. not entered. Inputting an instruction for causing the printer 10 to execute printing means operating an OK button on the print setting screen D1. After the print setting screen D1 is displayed on the PC 100A, the user may input an instruction to cancel execution of printing, that is, operate the cancel button on the print setting screen D1. Even in such a case, if all the print condition information is the same, the printer 10 can display a print setting screen suitable for the print conditions that can be used by the user without requiring the user of the PC 100A to input user information. Since data can be transmitted to the PC 100A, user convenience is improved.

If no user information is described in the header portion of the Job verification request received from PC 100A (NO in S242 of FIG. 7), printer 10 transmits a user information request to PC 100A (S250). When a Job verification request in which user information is described is received from PC 100A in response to the transmission of the user information request (YES in S242), printer 10 sets the restriction information associated with the user information. Based on this, it is determined whether or not to execute printing. The job verification request is a request sent from PC 100A to printer 10 when an instruction for causing printer 10 to execute printing is input to PC 100A. Therefore, in a situation where all the printing condition information in the memory 34 is the same, the printer 10 does not send a user information request to the PC 100A, and even if the capability information response is sent to the PC 100A, the user information A user information request can be transmitted to PC 100A in response to receiving a Job verification request in which is not described.

(Effect of this embodiment)
The same effects as those of the first embodiment can also be obtained in the second embodiment.

(correspondence relationship)
The user ID and password described in the header section within the capability information request are an example of "user information." The user information request of S230 and the user information request of S250 in FIG. 8 are examples of the "first user information request" and the "second user information request", respectively. A Job verification request is an example of a "predetermined signal".

S210, S226, and S228 in FIG. 8 are examples of processing executed by the 'request receiving unit', the 'acquisition unit', and the 'response transmitting unit', respectively. S52 in FIG. 2 is an example of processing executed by the "print control unit".

Although specific examples of the present invention have been described in detail above, these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above. Modifications of the above embodiment are listed below.

(Modification 1) In FIG. 2, S50 and S60 to S70 may be executed between S42 to S48. Also, S50 may be executed after S60. Also, S60 to S70 may be omitted. In this modified example, printing of print data identified by a Job name that does not include an extension may not be executed without notifying the administrator.

(Modification 2) S50 and S60 to S72 in FIG. 2 may be omitted. In this modification, the printer 10 does not have to store restriction information.

(Modification 3) The "predetermined data format" may be a specific extension such as "pdf" or "doc".

(Modification 4) In S230 of FIG. 8, the CPU 32 may transmit an error notification to the target PC instead of the user information request. In this modified example, the "first request transmission unit" can be omitted.

(Modification 5) S220 in FIG. 8 may be omitted.

(Modification 6) In S250 of FIG. 8, the CPU 32 may transmit an error notification to the target PC instead of the user information request. In this modified example, the “second request transmission unit” can be omitted. The "predetermined signal" may be a job generation request or print data. The predetermined signal may be any signal related to execution of printing.

(Modification 7) The "predetermined communication protocol" is not limited to IPP, and is communication used when executing printing using a GCP (abbreviation for Google Cloud Print) server provided by Google (registered trademark). It can be a protocol.

(Modification 8) In the above embodiment, each process executed by the control unit 30 is implemented by software (that is, the program 36), but at least one of these processes is implemented by hardware such as a logic circuit. may be implemented.

In addition, the technical elements described in this specification or in the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the techniques exemplified in this specification or drawings achieve multiple purposes at the same time, and achieving one of them has technical utility in itself.
The following is a description corresponding to the claims as filed.
(Item 1)
a printer,
a print execution unit;
a memory that associates and stores, for each of a plurality of users, user information that identifies the user and printing condition information that indicates printing conditions that the user is permitted to use;
a request receiving unit for receiving a capability information request according to a predetermined communication protocol from a terminal device, wherein the capability information request is a command for requesting transmission of printing conditions that can be used by the printer; a request receiver;
When the capability information request includes specific user information that identifies a specific user, specific printing condition information associated with the specific user information, which is available to the printer, is retrieved from the memory. an acquisition unit that acquires the specific printing condition information indicating a specific printing condition that is part of the printing conditions;
a response transmission unit configured to transmit a capability information response including the acquired specific printing condition information to the terminal device;
After the capability information response is transmitted to the terminal device, if the specific user selects print settings that match the specific printing conditions indicated by the specific printing condition information, select from the terminal device. a print data receiving unit that receives specific print data according to the print settings that have already been made;
a print control unit that causes the print execution unit to execute printing according to the specific print data;
printer with
(Item 2)
The memory associates and stores, for each of the plurality of users, user information that identifies the user, printing condition information that indicates printing conditions that the user is permitted to use, and restriction information of the user. death,
The restriction information is information indicating whether or not printing according to print data having a predetermined data format is permitted,
The print control unit
causing the print executing unit to print according to the specific print data having the predetermined data format when the specific restriction information associated with the specific user information indicates that printing is permitted; ,
The printer according to item 1, wherein printing according to the specific print data having the predetermined data format is restricted when the specific restriction information indicates that printing is not permitted.
(Item 3)
The printer further
A first request transmission unit configured to transmit a first user information request to the terminal device when the capability information request does not include user information, wherein the first user information request includes user information. 3. The printer according to item 1 or 2, comprising the first request transmission unit, which is a signal for requesting transmission of a capability information request.
(Item 4)
The obtaining unit obtains the first user information request even if the capability information request does not include user information when each piece of all the printing condition information in the memory is the specific printing condition information. 4. The printer according to item 3, wherein the specific printing condition information is obtained from the memory without transmitting to the terminal device.
(Item 5)
The printer further
a predetermined signal receiving unit that receives a predetermined signal from the terminal device in response to the transmission of the capability information response to the terminal device;
the print control unit causes the print execution unit to execute printing according to the specific print data when the predetermined signal includes the specific user information that identifies the specific user;
The printer further
A second request transmission unit configured to transmit a second user information request to the terminal device when the predetermined signal does not contain user information, wherein the second user information request is a new user information containing user information. 5. The printer according to any one of items 1 to 4, comprising the second request transmission section, which is a signal for requesting transmission of a predetermined signal.
(Item 6)
The capability information request is a request according to the predetermined communication protocol using HTTP (abbreviation for Hyper Text Transfer Protocol),
3. The printer according to item 1 or 2, wherein the user information is a user ID described in the body of the capability information request.
(Item 7)
The capability information request is a request according to the predetermined communication protocol using HTTP (abbreviation for Hyper Text Transfer Protocol),
6. The printer according to any one of items 1 to 5, wherein the user information is a combination of a user ID and password described in a header portion of the capability information request.
(Item 8)
A printer according to any one of items 1 to 7, wherein the predetermined protocol is IPP (short for Internet Printing Protocol).
(Item 9)
A computer program for a printer, comprising:
The printer is
a print execution unit;
a memory that associates and stores, for each of a plurality of users, user information that identifies the user and printing condition information that indicates printing conditions that the user is permitted to use;
a computer;
The computer program causes the computer to:
a request receiving unit for receiving a capability information request according to a predetermined communication protocol from a terminal device, wherein the capability information request is a command for requesting transmission of printing conditions that can be used by the printer; a request receiver;
When the capability information request includes specific user information that identifies a specific user, specific printing condition information associated with the specific user information, which is available to the printer, is retrieved from the memory. an acquisition unit that acquires the specific printing condition information indicating a specific printing condition that is part of the printing conditions;
a response transmission unit configured to transmit a capability information response including the acquired specific printing condition information to the terminal device;
After the capability information response is transmitted to the terminal device, if the specific user selects print settings that match the specific printing conditions indicated by the specific printing condition information, select from the terminal device. a print data receiving unit that receives specific print data according to the print settings that have already been made;
a print control unit that causes the print execution unit to execute printing according to the specific print data;
A computer program that acts as a

2: communication system, 10: printer, 12: operation unit, 14: display unit, 16: print execution unit, 20: communication I/F, 30: control unit, 32: CPU, 34: memory, 36: program, 38 : printing condition table, 100A to 100D: PC

Claims (9)

a printer,
a print execution unit;
A memory that associates and stores, for each of a plurality of users, user information that identifies the user, printing condition information that indicates printing conditions that the user is permitted to use, and restriction information of the user. , the memory, wherein the restriction information is information indicating whether or not printing according to print data having a predetermined data format is permitted ;
a request receiving unit for receiving a capability information request according to a predetermined communication protocol from a terminal device, wherein the capability information request is a command for requesting transmission of printing conditions that can be used by the printer; a request receiver;
When the capability information request includes specific user information that identifies a specific user, specific printing condition information associated with the specific user information, which is available to the printer, is retrieved from the memory. an acquisition unit that acquires the specific printing condition information indicating a specific printing condition that is part of the printing conditions;
a response transmission unit configured to transmit a capability information response including the acquired specific printing condition information to the terminal device;
After the capability information response is transmitted to the terminal device, if the specific user selects print settings that match the specific printing conditions indicated by the specific printing condition information, select from the terminal device. a print data receiving unit that receives specific print data according to the print settings that have already been made;
a print control unit that causes the print execution unit to execute printing according to the specific print data;
with
The print control unit
causing the print executing unit to print according to the specific print data having the predetermined data format when the specific restriction information associated with the specific user information indicates that printing is permitted; ,
A printer that restricts printing according to the specific print data having the predetermined data format when the specific restriction information indicates that printing is not permitted . The printer further
A first request transmission unit configured to transmit a first user information request to the terminal device when the capability information request does not include user information, wherein the first user information request includes user information. 2. The printer according to claim 1 , comprising said first request transmission section, which is a signal for requesting transmission of a capability information request. a printer,
a print execution unit;
a memory that associates and stores, for each of a plurality of users, user information that identifies the user and printing condition information that indicates printing conditions that the user is permitted to use;
a request receiving unit for receiving a capability information request according to a predetermined communication protocol from a terminal device, wherein the capability information request is a command for requesting transmission of printing conditions that can be used by the printer; a request receiver;
When the capability information request includes specific user information that identifies a specific user, specific printing condition information associated with the specific user information, which is available to the printer, is retrieved from the memory. an acquisition unit that acquires the specific printing condition information indicating a specific printing condition that is part of the printing conditions;
a response transmission unit configured to transmit a capability information response including the acquired specific printing condition information to the terminal device;
After the capability information response is transmitted to the terminal device, if the specific user selects print settings that match the specific printing conditions indicated by the specific printing condition information, select from the terminal device. a print data receiving unit that receives specific print data according to the print settings that have already been made;
a print control unit that causes the print execution unit to execute printing according to the specific print data;
A first request transmission unit configured to transmit a first user information request to the terminal device when the capability information request does not include user information, wherein the first user information request includes user information. the first request transmission unit, which is a signal for requesting transmission of a capability information request;
with
The obtaining unit obtains the first user information request even if the capability information request does not include user information when each piece of all the printing condition information in the memory is the specific printing condition information. to the terminal device, the printer acquires the specific printing condition information from the memory . The printer further
a predetermined signal receiving unit that receives a predetermined signal from the terminal device in response to the transmission of the capability information response to the terminal device;
the print control unit causes the print execution unit to execute printing according to the specific print data when the predetermined signal includes the specific user information that identifies the specific user;
The printer further
A second request transmission unit configured to transmit a second user information request to the terminal device when the predetermined signal does not contain user information, wherein the second user information request is a new user information containing user information. 4. The printer according to any one of claims 1 to 3 , comprising said second request transmission section, which is a signal for requesting transmission of a predetermined signal. a printer,
a print execution unit;
a memory that associates and stores, for each of a plurality of users, user information that identifies the user and printing condition information that indicates printing conditions that the user is permitted to use;
a request receiving unit for receiving a capability information request according to a predetermined communication protocol from a terminal device, wherein the capability information request is a command for requesting transmission of printing conditions that can be used by the printer; a request receiver;
When the capability information request includes specific user information that identifies a specific user, specific printing condition information associated with the specific user information, which is available to the printer, is retrieved from the memory. an acquisition unit that acquires the specific printing condition information indicating a specific printing condition that is part of the printing conditions;
a response transmission unit configured to transmit a capability information response including the acquired specific printing condition information to the terminal device;
After the capability information response is transmitted to the terminal device, if the specific user selects print settings that match the specific printing conditions indicated by the specific printing condition information, select from the terminal device. a print data receiving unit that receives specific print data according to the print settings that have already been made;
a print control unit that causes the print execution unit to execute printing according to the specific print data;
with
The capability information request is a request according to the predetermined communication protocol using HTTP (abbreviation for Hyper Text Transfer Protocol),
The printer , wherein the user information is a user ID described in the body of the capability information request . a printer,
a print execution unit;
a memory that associates and stores, for each of a plurality of users, user information that identifies the user and printing condition information that indicates printing conditions that the user is permitted to use;
a request receiving unit for receiving a capability information request according to a predetermined communication protocol from a terminal device, wherein the capability information request is a command for requesting transmission of printing conditions that can be used by the printer; a request receiver;
When the capability information request includes specific user information that identifies a specific user, specific printing condition information associated with the specific user information, which is available to the printer, is retrieved from the memory. an acquisition unit that acquires the specific printing condition information indicating a specific printing condition that is part of the printing conditions;
a response transmission unit configured to transmit a capability information response including the acquired specific printing condition information to the terminal device;
After the capability information response is transmitted to the terminal device, if the specific user selects print settings that match the specific printing conditions indicated by the specific printing condition information, select from the terminal device. a print data receiving unit that receives specific print data according to the print settings that have already been made;
a print control unit that causes the print execution unit to execute printing according to the specific print data;
with
The capability information request is a request according to the predetermined communication protocol using HTTP (abbreviation for Hyper Text Transfer Protocol),
The printer , wherein the user information is a combination of a user ID and a password described in a header portion of the capability information request . The printer according to any one of claims 1 to 6 , wherein said predetermined communication protocol is IPP (abbreviation for Internet Printing Protocol). A computer program for a printer, comprising:
The printer is
a print execution unit;
a memory that associates and stores, for each of a plurality of users, user information that identifies the user and printing condition information that indicates printing conditions that the user is permitted to use;
a computer;
The computer program causes the computer to:
a request receiving unit for receiving a capability information request according to a predetermined communication protocol from a terminal device, wherein the capability information request is a command for requesting transmission of printing conditions that can be used by the printer; a request receiver;
When the capability information request includes specific user information that identifies a specific user, specific printing condition information associated with the specific user information, which is available to the printer, is retrieved from the memory. an acquisition unit that acquires the specific printing condition information indicating a specific printing condition that is part of the printing conditions;
a response transmission unit configured to transmit a capability information response including the acquired specific printing condition information to the terminal device;
After the capability information response is transmitted to the terminal device, if the specific user selects print settings that match the specific printing conditions indicated by the specific printing condition information, select from the terminal device. a print data receiving unit that receives specific print data according to the print settings that have already been made;
a print control unit that causes the print execution unit to execute printing according to the specific print data;
function as
The capability information request is a request according to the predetermined communication protocol using HTTP (abbreviation for Hyper Text Transfer Protocol),
The computer program , wherein the user information is a user ID described in a body part of the capability information request . A computer program for a printer, comprising:
The printer is
a print execution unit;
a memory that associates and stores, for each of a plurality of users, user information that identifies the user and printing condition information that indicates printing conditions that the user is permitted to use;
a computer;
The computer program causes the computer to:
a request receiving unit for receiving a capability information request according to a predetermined communication protocol from a terminal device, wherein the capability information request is a command for requesting transmission of printing conditions that can be used by the printer; a request receiver;
When the capability information request includes specific user information that identifies a specific user, specific printing condition information associated with the specific user information, which is available to the printer, is retrieved from the memory. an acquisition unit that acquires the specific printing condition information indicating a specific printing condition that is part of the printing conditions;
a response transmission unit configured to transmit a capability information response including the acquired specific printing condition information to the terminal device;
After the capability information response is transmitted to the terminal device, if the specific user selects print settings that match the specific printing conditions indicated by the specific printing condition information, select from the terminal device. a print data receiving unit that receives specific print data according to the print settings that have already been made;
a print control unit that causes the print execution unit to execute printing according to the specific print data;
function as
The capability information request is a request according to the predetermined communication protocol using HTTP (abbreviation for Hyper Text Transfer Protocol),
The computer program , wherein the user information is a combination of a user ID and a password described in a header of the capability information request .

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