Knife Pressure and Stretch Factor settings can
be found in Primera Print Hub on the Printer Settings Tab for the LX610. Click
the Advanced Settings button to view these settings.
Knife Pressure affects how deep into the media the knife
will cut. Ideally you want to cut deep
enough to cut through the label layer on the top but not so deep that you cut
through the backing paper (liner). When
you cut through the backing paper your label will not peel cleaning off the
backing paper. You will also score the wear strip under the cutting knife which
can cause the knife tip to break. You
will also need to replace the wear strip more often if you cut too deep.
By default, the cutter is calibrated to work with High Gloss Paper Media. However, other media types will need more or less cut pressure to cut properly.
Each roll of
media will have a recommended value to add
or subtract from the default baseline values used for Knife Pressure and Knife
Stretch Factor. These values are listed
below and printed on a label attached to the inside of the core.
|
|
Knife Pressure |
Stretch Factor |
|
High Gloss Paper |
0 |
0 |
|
High Gloss BOPP |
4 |
0 |
|
Magnetic |
22 |
32 |
Knife Stretch Factor can be increased or decreased to compensate
for different feed thicknesses and textures of media. Thickness and texture can affect the feed
speed of the media usually causing it to feed more slowly than the baseline
media (High Gloss Paper). This will cause the height/length of your cut to be
shorter. If you find that your cut
height/length is longer or shorter than the height specified in the PTCreate software,
you may need to increase or decrease the stretch factor. Increasing this value with create a longer
cut. Decreasing it will create a shorter
cut.
Adjusting Knife Pressure over time.
Eventually, the knife blade will begin to wear and require more cut pressure to
cut at the same depth as when it was brand new and sharper. Therefore, you may need to add cut pressure
when cutting any media even the High Gloss Paper.
To determine if cut pressure needs to be
increased or decreased, follow these steps.
1. Print and Cut 1 copy and then attempt to peel the label from the liner.
2. Check for tear. If the label tears when you remove it, you will need to increase the cut pressure. Increase pressure in small increments to avoid over compensating and cutting through the liner.
3. Check the liner. Once you peel up the label, check the liner. If it has been cut through, decrease pressure.
Continue increasing or decreasing pressure until the label no longer tears when removed or the liner is not cut through.