5-8
Example of cause of wrong detection3:
The distance between register marks(TP2&TP1, TP4&TP2) is smaller than the mark lengt.
The size of, and the distance between, square marks
The size (B) of a register mark suited for the distance (A) between the mark is as shown below.
If the mark size (B) is too small relative to the distance (A), the marks may not be detected correctly.
Be sure to prepare the register marks with an appropriate size.
(mm)
A less than200 500 1000 1500and more
B 10152030
No plotting area
No plotting area
Space larger
than the mark
length
Space larger than the
mark length