DEVICE AND METHOD FOR PRODUCT SALES DATA PROCESSING AND COMPUTER READABLE STORAGE MEDIUM FOR STORING PRODUCT SALES DATA PROCESSING PROGRAM

摘要

PROBLEM TO BE SOLVED: To simply increase or decrease the number of printers while attaining a miniaturization, light weight and low cost. SOLUTION: A printer 30R can obtain subordinate printer information on a subordinate printer 30J by way of a subordinate printer interface 36, and at the same time forms both printer information on its own machine and received subordinate printer information so that they can be transmitted to a device body 10 by way of a device body interface 35. The device is further formed so that a self machine printer information the device body 10 receives from the printer 30R or product sales data of the printer 30R selectively specified by using either the subordinate printer information or the subordinate printer 30J can be transmitted to the printer 30R, and that the product sales data addressed to its own machine, which the subordinate printer 30J receives from the printer 30R by way of a host printer interface 35, can be printed.