Patent ID: 8760689

Claim:
A non-transitory computer readable medium storing print control instructions, the print control instructions including: a port monitor configured to add a logical print port; and a common printer driver executable with a user authority, wherein the common printer driver, when executed by a computer with the user authority, causes the computer to: select a printer of a plurality of printers connected to the computer via a network; and write network location information of the selected printer on the network in setting information stored in a memory of the computer, wherein the print control instructions further include a monitoring program that is executable with a system authority, the monitoring program, when executed by the computer with the system authority, causes the computer to: monitor, at predetermined intervals, the setting information in the memory and detect whether the network location information is written in the setting information; read the network location information from the setting information in response to detecting that the network location information is written in the setting information; input a port adding command for adding a logical print port specified by the read network location information to the port monitor, wherein the port monitor is executed with the system authority; and set the logical print port designated by the read network location information read from the setting information and added based on the port adding command as a print port used via the common printer driver.