GRAPHTEC FC2250 Series - Executing Registration Mark Detection

4-21
Chapter 4 REGISTRATION MARK SETTINGS AND DETECTION
4.12 Registration Mark Detection
When MARKS has been selected for the registration mark mode, the plotter detects the registration marks
printed on the medium and adjusts the angle of the coordinate axes (X-axis and Y-axis tilt) and the distance
(line segment length). Detection of the registration marks can be performed either automatically or manually.
•
2-point reading
•
3-point reading
•
4-point reading
Point 2
Point 1
Point 2
Point 3
Point 1
Point 2
Point 3
Point 1
Point 4
Y
X
Registration marks
Plotter’s effective
plotting area
Edges of
the medium
2-point reading
: The plotter reads two registration marks in the X-axis direction (points 1-2) and corrects the tilt in the
X-axis.
3-point reading
: The plotter reads the points at the right angles of three registration marks (points 1-2 and points 1-3),
corrects the tilt in both coordinate axes and then performs distance adjustment.
4-point reading
: The plotter reads the points at the right angles of three registration marks (points 1-2 and points 1-3),
corrects the tilt in both coordinate axes and then performs distance adjustment. The addition of the
coordinate values of point 4 enables even more precise axial tilt correction and distance adjustment.
(1) Select MARKS as the registration mark mode, and then select the number of points for reading. (See Section 4.2,
"Setting the Registration Mark Mode".)
(2) With the plotter in Ready status, press the
[ORIGIN] key to display the menu shown below.
FORCE OFFSET
SPEED QUALITY
1 3
2 MANUAL
The numbers 1, 2, and 3 displayed on this menu are the MARK MOVE No. settings. (See Section 4.2, "Setting the
Registration Mark Mode".)
(3) Use the
[ ] [ ] [ ] [ ] keys to move the pen carriage (the tip of the tool selected by the current setting) to the
point 1 area.
Registration mark pattern 1 Registration mark pattern 2 Registration mark pattern 3
Point 2
Point 3
Point 1
Point 1
Point 4
Point 2
Registration mark pattern Mirror 1
Point 1
Point 2
Point 3
Point 4
Registration mark pattern Mirror 2
Point 1
Point 3
Point 4
: Cutout area
Point 2
Point 2
Point 3
Point 1
Point 3 Point 4
Point 4
Move the tip of the tool selected by the
current setting within area.