As shown in FIG. 8, the printing management apparatus PK includes a communication section 21, an acceptance section 22, a calculation section 23, a comparison section 24, a confirmation/resetting section 25, a control section 26 and a storage section 27.

The relation between the hardware configuration (shown in FIG. 2) and the functional configuration (shown in FIG. 8) in the printing management apparatus PK is described as follows. That is, in the hardware respect, the CPU 12 executes the program PR stored in the storage medium 14 (implementing a portion of the function of the storage section 27) while using the memory 15 (implement another portion of the function of the storage section 27), and serves as the control section 26 to control operations of the input section 11 and the output section 13 in response to necessity. Thus, the CPU 12 implements the respective functions of the communication section 21, the acceptance section 22, the calculation section 23, the comparison section 24 and the confirmation/resetting section 25. The functions of the respective sections will be described later.

<Configuration of Terminal Apparatus of User>

FIG. 9 shows the configuration of the terminal apparatus TMu of the user according to Exemplary Embodiment 1.