A supporting program stores, in a memory, a parameter list in which identification information of a print queue implemented in an OS and print parameters are associated with each other. In the OS, a plurality of print queues for a single printer can be implemented. When one of the plurality of print queues is selected and a general-use printing program receives a printing instruction to cause the printer to perform printing, the supporting program is activated. When a printing instruction is received while one of the plurality of print queues being selected, the supporting program reads out a print parameter corresponding to the selected print queue and sets the read out print parameter as a print parameter used for printing in accordance with the printing instruction.

The printing device registers setting information pertaining to printing and sends identification information of the registered setting information registered to an information processing device in response to an obtainment request from the information processing device. When a print job including the identification information is received from the information processing device, the printing device executes the print job having applied the setting information corresponding to the identification information to print settings of the print job.

A printer driver communicates with a printer using a predetermined print protocol to obtain first attribute information related to printing from the printer. The print driver generates a print job conforming to the predetermined print protocol based on data received from an application and transmits the generated print job to the extension application (S606). The extension application obtains attribute information in a different form from the first attribute information (S611). The extension application displays a user interface (UI) for print settings based on at least the second attribute information (S613). The extension application generates a print job to be transmitted to the printer based on settings made via the UI and the print job received from the printer driver.

An information processing apparatus communicating with a server system capable of converting received print data into print data conforming to a print apparatus used for printing the received print data and transmits the converted print data to the printing apparatus, the information processing apparatus includes a generation unit configured to generate print data conforming to the print apparatus used for printing, a transmission unit configured to transmit the print data generated by the generation unit to the server system, and an instruction unit configured to instruct the server system to transmit the received print data to the print apparatus without converting the received print data.

An information processing apparatus includes a processor and a memory storing instructions. Executing the instructions by the processor causes the processor to perform operations. A virtual device on the information processing apparatus to transmit a print job to an image forming apparatus is selected. A user interface is displayed that is for activating, in accordance with the selected virtual device and among one or more applications to provide an additional function to the image forming apparatus, an application that corresponds to a model of the image forming apparatus to which the selected virtual device transmits the print job.

An information processing device is configured to execute a management program and a print server program. The management program determines whether a non-compliant printer is connected to the information processing device, determines whether a print server program is running when the non-compliant printer is connected, starts up the print server program when the print server program is not running, and registers a print server configured by the print server program with an operating system. The print server program receives a print job designating the print server as an output destination, obtains individual print data which is printable by the non-compliant printer, and transmits the obtained individual print data to the non-compliant printer.

A non-transitory computer-readable medium storing a support program readable by a computer of an information processing device, the support program corresponding to a printer connected to the information processing device and supporting a general-purpose print program pre-installed in an operating system of the information processing device, the support program, when executed by the computer, causes the computer to perform: based on a print instruction being output from an application program installed in the information processing device and transferred to the general-purpose print program to cause the printer to perform printing, receiving intermediate image data according to the print instruction from the operating system; generating rasterized raster data based on the received intermediate image data; compressing the generated raster data; and transmitting print data based on the compressed raster data to the printer.

A supporting program according to aspects of the present disclosures can be executed by a CPU of a PC and corresponds to a printer connected to the PC. When the PC receives a print instruction to cause the printer to perform printing through a general-use printing program implemented in the OS of the PC, in advance, the supporting program causes the PC to output a preceding operation command to cause the printer to perform a preceding operation before starting printing. The printer performs a preceding operation corresponding to the preceding operation command

A non-transitory computer-readable medium storing a support program readable by a computer of an information processing device, the support program corresponding to a printer connected to the information processing device and supporting a general-purpose print program pre-installed in an operating system of the information processing device, the support program, when executed by the computer, causes the computer to perform: when a print instruction is output from an application program installed in the information processing device and transferred to the general-purpose print program to perform printing, receiving intermediate image data according to the print instruction from the operating system; determining whether a conversion is required; and when the conversion is required, causing the printer to print a converted image obtained by converting an image indicated by the received intermediate image data from color to monochrome.

An information apparatus comprises a controller including a processor and a memory, and the controller is configured to: obtain information of a printer; search, using the obtained information, for extension software for extending functions of a printer driver that generates a print command to be sent to the printer; install extension software found by the searching; and activate the installed extension software so that print options to be used for the printer driver to generate a print job to be sent to the printer are displayed.