Operator`s manual

Setup Sensor
The XL Series printers determine the location of the leading edge of the label or tag
by measuring the difference between light levels when it sees either a media edge or
a black I-Mark. This adjustment allows you to manually set the threshold voltage
level, between the maximum and minimum light levels. The type of sensor is
automatically selected by the MEDIA TYPE setting (Note: GAP is also used for tags).
The LCD will display either “GAP” or “I-Mark”on the top line along with the current
setting. If the value entered is “0.0V”, then the printer will automatically calculate the
setting when the first label is fed after the printer is powered on or the head is closed.
There are some instances where the automatically calculated value must be adjusted
to ensure reliable label feeding, such as when the backing opacity or the reflectance
of the I-Mark varies significantly within a roll of labels or between label rolls. In these
instances the value should be set using the following procedures.
GAP - When setting the “gap” threshold, the voltage must be measured with nothing
(or nothing but the backing if labels are used) in the sensor and then again with a
labels in the sensor. The smaller value is added to the larger and the result
multiplied by 0.5. This is the starting point to be used. The formula for this is:
(High Voltage Level + Low Voltage Level) x 0.5 = Start Value
1. Insert a tag/label into the sensor (see page 2-11 for location of the sensors) and close
the Media Hold Down. Record the voltage shown on the top line of the LCD panel.
This line should have the message “GAP” on the top line. Make sure the tag/label is
all the way under the sensor.
2. If labels are used, strip the label from the backing and insert the backing strip under the
sensor. If tags are used, remove the tag from the sensor. Close the Media Hold Down.
Record the voltage shown on the top line of the LCD panel. The voltage ranges
measured should be within the following ranges:
Tag or
Label with Backing
No Tag or Label
Backing Only
2.0V to 3.5V Less than 1.0V
If the measured values are outside this range, you may have trouble in finding a value
that will work properly under all conditions. If this is the case, a higher quality label
may be needed to get adequate performance.
SENSOR SETUP
SERVICE MODE
GAP (X.XV)
INPUT (X.
XV)
Section 3. Printer Configuration
Page 3-129001038 Rev. DSATOXL SeriesPrinters