Abstract

A printer operatively associated with an electronic weigher includes an input unit having numeric keys or format keys, a memory device storing a plurality of programs for controlling positions at which data are to be printed on a label as well as the size of the printed data, each program corresponding to a different label format, reading means for reading out of the memory device a program corresponding to a format designated by operating the keys of the input unit, and a printing mechanism for printing predetermined data on a label at a predetermined position of the label on the basis of the program read out of the memory device. A journal printer for printing out data from a plurality of electronic weighers having different printing formats includes a memory device storing a plurality of different printing formats, weigher discrimination means for discriminating from which of the plurality of electronic weighers data is received, mode discrimination means for discriminating the mode of the data, reading means for reading a printing format out of the memory device in accordance with the results of the discrimination operations performed by these discrimination means, and for delivering the printing format to the printing means.