GRAPHTEC OPS675 User Manual page 27

Sensor Offset
Adjust the position of the sensor that scans registration marks.
5
Sensor Offset ADJ. (page 27)
ADJ.
6
OK Saves the settings and closes the [ARMS Setting] screen.
7
Cancel Cancels the settings and closes the [ARMS Setting] screen.
Axis Alignment
In Axis Alignment, you adjust the tilt of the Axis by using alignment marks (such as grits and registration marks)
for 2points, 3points, or 4points as references. In addition you can adjust the distance by entering the distance
between each points. Use the loupe or the light pointer for the tool to align the tool to the position of each point.
Use media that has drawings (alignment marks such as grits and registration marks) required to determine the X/Y
axes and the origin point.
For more information on the axis alignment procedure, see Chapter 6 "Manual Position Adjust" in User's Manual.
Sensor Adjust
Scan level (threshold value between the media background color and registration mark) of the sensor scanning the
registration mark is automatically adjusted. Sensor is adjusted to scan the registration mark written in black lines
on white background. Readjust the scan level of the sensor depending on the color and gloss of the media. If it is
hard to adjust the level automatically due to media characteristics, adjust the scan level of the sensor manually.
When you want to revert the sensor level back to the default, use the control panel of the plotter. For more
information on the sensor level adjustment procedure, see Chapter 5 "ARMS (Advanced Registration Mark Sensing
System)" in User's Manual.
Sensor Offset ADJ.
Sensor to scan the registration mark is positioned away from the tip of the tool (pen tip). Therefore, it is necessary
to adjust the coordinate values of the scanned registration mark so it will match with the cutting position.
Specify how much the cross shape, which was plotted after scanning, should be moved based on the cross shape
to be scanned.
•Plotting Registration Mark for Adjustment
When Registration Mark is not plotted on the media, fi rst plot the Registration Mark. Then proceed to the step of
"Detect the Registration Mark for Adjustment, and enter the Value".
1. Load white media.
2. Set the water-based fi ber-tip pen on the tool holder.
3. Open the [ARMS Setting] screen of controller.
4. Click [Position (use Keyboard)], and use the Keyboard of PC to move the Tool to the position at which you want
to cut the Registration Mark (test pattern).
5. Click [Test Pattern] of [Sensor Offset ADJ.], and plot the Adjustment Registration Mark.
•Detect the Registration Mark for Adjustment, and enter the Value
When the Registration Mark is already cut on the Media or when the Media where Adjustment Registration Mark is
cut is used using the [Test Pattern], take the following procedures.
1. Load the media with adjustment registration mark in the plotter.
2. Open [ARMS Setting] screen of controller.
3. Click [Position (use Keyboard)], and use the Keyboard of PC to move the Tool to the area at which you want to
start scanning the Registration Mark.
4. Click [Scan] of [Sensor Offset ADJ.] to scan the Registration Mark for Adjustment, and plot the Registration
Mark for comparison.
adjustment
5. Using the scanned Registration Mark for Adjustment, measure the distance of how much the comparison
registration mark needs to be moved so both will overlap, and record the value. As an example, in the fi gure
above, it needs to move in negative directions for both X and Y directions, so both of the adjustment values will
be negative values.
6. Enter the values, which were measured in the above 5, into each X/Y as the adjustment value.It is able to set
for both X and Y in the range from -3.0mm to +3.0mm.
2 7
7. A R MS Set t in g [A R M S]
X
Y
Align the tool to this area
Distance adjustment value Y
Distance
X
value X
Y
The cross shape plotted
after scanning