Container for printing material, technique of detecting information on printing material in container, and technique of allowing for transmission of information between container and printing device

摘要

In an ink container 100 of the invention, an electric power generator 240 rectifies a carrier wave transmitted from a printer PT and thereby generates an electric power for driving a controller 210 and an RF circuit 200 . A program voltage generator 250 and a sensor driving voltage generator 260 are connected in series with the electric power generator 240 to individually generate a program voltage required for writing data into an EEPROM 220 and a voltage required for driving a sensor SS including a piezoelectric element. The arrangement of the invention efficiently generates electric powers, which are to be supplied to respective constituents of a container for a printing material, such as the ink container 100 , which establishes communication with a printing device, such as the printer PT, from a preset electric power generated by utilizing a radio wave.