Patent ID: 6648445
Filing Date: 2003-11-18
Classification: B41J,H05K

Abstract:
A circuit board having a storage device far storing data relating to a marking material for print, said circuit board comprising:at least two ground terminals arranged on said circuit board at two edges thereof that are located on one axis thereof; and a plurality of terminals arranged on said circuit board, for read/write operations on said data relating to a marking material for print, wherein said plurality of terminals are arranged to form a plurality of rows, with two of said at least two ground terminals being located at the outermost ends of one of said plurality of rows, wherein said plurality of terminals include a data I/O terminal, a power supply terminal, a select signal terminal, a read/write control signal terminal, and a clock signal terminal, and wherein said plurality of rows have a first row wherein said data I/O terminal and said select signal terminal are located to either side of said power supply terminal, and a second row wherein said read/write control signal terminal and said clock signal terminal are located between said two ground terminals, said first row being located closer to the center of said circuit board than is said second row, and with said terminals in said first row and said terminals in said second row arranged in alternating fashion.