Printing apparatus, printing material cartridge, adaptor for printing material container, and circuit board

摘要

A printing material cartridge comprises: a memory device; a plurality of first terminals through which a power source voltage and signals for operating the memory device are supplied from a printing apparatus; and a plurality of second terminals to be used for detecting attachment conditions of the printing material cartridge in a cartridge attachment unit. The plurality of first terminals have a plurality of first contact portions that get in contact with corresponding apparatus-side terminals when the printing material container is properly attached to the cartridge attachment unit. The plurality of second terminals have a plurality of second contact portions that get in contact with corresponding apparatus-side terminals when the printing material container is properly attached to the cartridge attachment unit. The plurality of first and second contact portions are arranged so as to form a first row and a second row. Four contact portions among the plurality of second contact portions are placed at both ends of the first and second rows, respectively.

主权项

1. A circuit board electrically connectable to a plurality of apparatus-side terminals of a cartridge attachment unit of a printing apparatus, comprising:
a plurality of first terminals through which a power source voltage and signals for operating a memory device are supplied from the printing apparatus; and a plurality of second terminals to be used for detecting connection conditions between the plurality of apparatus-side terminals and the circuit board, wherein the plurality of first terminals have a plurality of first contact portions that get in contact with corresponding apparatus-side terminals, the plurality of second terminals have a plurality of second contact portions that get in contact with corresponding apparatus-side terminals, the plurality of first and second contact portions are arranged so as to form a first row and a second row, and four contact portions among the plurality of second contact portions are placed at both ends of the first and second rows, respectively.