A client computer of the invention utilizes a printer driver for a distribution source printer to send a print job to the distribution source printer. The distribution source printer distributes each print job sent with setting of a preset second port number to multiple distribution destination printers. The client computer includes: a storage unit that stores a first printer driver with property information including specification of a port number, which is specified and used for transmission of each print job and is currently set to a preset first port number, as one printer driver for the distribution source printer; and a printer driver generation module that, in response to an externally given instruction, duplicates the property information of the first printer driver read from the storage unit and changes the port number included in the duplicated property information of the first printer driver to the preset second port number, which is different from the preset first port number, so as to generate a second printer driver as another printer driver for the distribution source printer. This arrangement enables the first printer driver and the second printer driver having the different settings of the port number included in the property information to be readily provided in the client computer as multiple different printer drivers for the distribution source printer.