PURPOSE: To shorten an input output cycle and to reduce the amount of energy consumed, by a method wherein the patterns of an empty space are set, and the pattern disturbed due to input and output is returned to a set pattern.
CONSTITUTION: A line direction drive device 9 and a row direction drive device 10 are connected to a microcomputer 20. The microcomputer 20 is provided with a memory means 21, storing at least one of preset empty space patterns, and a control means 22, outputting drive signals (a) and (b) to drive devices 9 and 10 to perform an input output motion. This constitution causes the micro computer 20 to drive the drive devices 9 and 10 in a line direction and a row direction to perform an input and output motion. When the input and output motion is completed, the drive devices 9 and 10 are controlled through the working of a control means 22 so that the pattern of an empty space, disturbed due to the input and the output motion, is returned to a set pattern stored in the memory means 21. This constitution shortens an input output cycle, and reduces the amount of energy consumed.
OZAKI KENJI
OTSUBO TOSHIYUKI
OKAJI YOSHIAKI
