A printer controller includes a driver module which controls operation of a control subject printer to be controlled, and an application module. The driver module includes: a conversion table referencing section which refers to a conversion table that correlates, for a prescribed printer control item, a control parameter suitable for the control subject printer and a control parameter suitable for a conversion subject printer that is different from the control subject printer; a control parameter acquiring section which acquires the control parameter that is output from the application module, is corresponding to the printer control item, and is suitable for the conversion subject printer; and a control parameter converting section which converts the acquired control parameter into the control parameter suitable for the control subject printer according to the conversion table, and outputs the resulting control parameter.