| 摘要 |
PROBLEM TO BE SOLVED: To securely and easily discriminate between adjacent binary signal marks by making the area of a binary signal mark less than the area of a small section and always forming a blank part at the peripheral part of the small section. SOLUTION: The area of the binary signal mark K recorded in each small section 3 is made less than the area of the small area 3 to form the blank part at the peripheral part of the small section 3 at all times. Thus, the blank part is always formed at the peripheral part of the small section 3 for the binary signal mark K recorded in the small section 3 in a display area, and then the blank part is always present between the binary signal marks K of adjacent small sections 3. Therefore, the respective small sections 3 where binary signal marks K are recorded can be discriminated in the display area and recording information can accurately be reproduced. Further, a general dot printer is usable and the binary signal marks K can be recorded on the identification code paper at low cost. |
