A system that allows everyone to readily enter a desired character into a machine with a limited character entry capability, such as a shop front printing service machine and the like. The system includes, for example, a shop front printing service machine, a cell phone, and a character entry server, which are connected with each other via the Internet. A character is entered into the cell phone by the user, which is transmitted to the shop front printing service machine through the character entry server, and received by the shop front printing service machine.