User`s manual

EC-520 User’s Manual
- 35 -
position offset from the beginning print-position is same with the inherent mechanical
value Q
0
of the printer (shown as figure 7-2) , all the offset value set by “GS （ F”
command is 0.
2. (1) When the distance L of the tearing/cutting position offset from the black mark is less than
the inherent mechanical value L
0
of the printer (shown as figure 7-3), the calculation of
tearing/cutting position offset is shown as follows:
tearing/cutting position offset =（L
0
-L）/0.176 （dots number）
(2) When the distance L of the tearing/cutting position offset from the black mark is greater
than the inherent mechanical value L
0
of the printer (shown as figure 4), the calculation of
tearing/cutting position offset is shown as follows:
tearing/cutting position offset =（L
0
+ distance of adjacent two black mark -L）/0.176（dots
number）
Note: When the tearing/cutting position offset is being set, the parameter “a” of “GS （ F”
command should be “2”.
3. When the tearing/cutting position offset is not zero, or the distance Q of the tearing/cutting position
offset from the beginning print-position is greater than the inherent mechanical value Q
0
of the
printer(shown as figure 7-5), the calculation of the beginning print-position offset by “GS （ F”
command is shown as follows:
the beginning print-position offset =（Q- Q
0
）/0.176+ tearing/cutting position offset
Note: When setting the beginning print-position offset, the parameter “a” of “GS （ F” command
should be “1”.
4. The inherent mechanical value
of the printer: L
0
=A (mm) Q
0
=C (mm) (shown as figure 7-1).
Figure 7-2
Figure 7-3
Figure 7-5
Figure 7-4