Sales data processing apparatus, store printer system and computer program product

A store printer system, comprising:

• a plurality of sales data processing apparatuses installed in a store;
• and
• a plurality of printers connected to the sales data processing apparatuses via a communication network, printer identification information and address information on the communication network being set on each of the printers,
• wherein each of the sales data processing apparatuses comprises:
• a communication section to transmit and receives data to and from the printers and another one or more of the sales data processing apparatuses;
• a storage section to store a printer network table in which printer identification information and address information for each of the printers are associated with one another;
• an inquiry section to transmit inquiry data for requesting the printer identification information and address information set on each of the printers, to each of the printers through the communication section;
• and
• an update section to update the printer network table when the printer identification information and address information are received from each of the printers through the communication section in response to the inquiry data, the printer network table being updated based on the received printer identification information and address information,
• wherein each of the printers comprises:
• a communication section to transmit and receive data to and from the sales data processing apparatuses;
• and
• a response section to transmit the set printer Identification information and address information to one or more of the sales data processing apparatuses through the communication section in response to the inquiry data when the inquiry data is received from one of the sales data processing apparatuses through the communication section.

A computer program, product readable by a computer and encoding instructions for executing a computer process, the computer being used for a sales data processing apparatus which is connected to another one or more sales data processing apparatuses and a plurality of printers via a communication network, printer identification information and address information on the communication network being set on each of the printers, the computer process comprising:

• transmitting and receiving data, by a communication section, to and from the printers and another one or more sales data processing apparatuses;
• storing a printer network table in which printer identification information and address information for each of the printers are associated with one another, into a storage section;
• transmitting inquiry data for requesting the printer identification information and address information set on each of the printers, to each of the printers through the communication section;
• and
• updating the printer network table stored in the storage section when the printer identification information and address information are received from each of the printers through the communication section in response to the inquiry data, the printer network table being updated based on the received printer identification information and address information.