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feeding, such as when the backing opacity or the reflectance of the EYE 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 shown on the top line of the
display must be measured with nothing but the backing in the sensor and then again
with a label still attached to the backing. The formula to be used for setting the
threshold is:
(High Voltage Level + Low Voltage Level) x 0.5 = Start Value
1. Insert a label still attached to the backing into the sensor (see page 2-14 for
location of the sensors) and close the Label 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 (DIP switch DSW2-2 = OFF). Make sure the label is all the way
under the sensor.
2. Strip the label from the backing and insert the backing strip under the sensor and
close the Label Hold-Down. Record the voltage shown on the top line of the LCD
panel. The voltage ranges measured should be within the following ranges:
Backing with Label 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 material may be needed to get adequate performance.
3. Calculate the starting point voltage using the formula shown above.
4. Use the LINE key to step the counter to the desired setting. The display will
increment one step for each time the LINE key is pressed. If the LINE key is held
pressed for more than two seconds, it will automatically go into the fast scroll
mode. The reading will advance to a setting of 4.9 (the maximum voltage) after
which it will automatically wrap and start at “0.0” again. If a value of “0.0” is set,
the printer will automatically set the level half way between the two measured
voltages each time the printer is powered on with labels loaded.
5. Once the setting is correct, pressing the FEED key will accept the setting and
advance to the Calendar Set display.
6. Repeat this procedure using values slightly higher or lower until the optimum
performance is obtained. If you cannot find a setting between the high and low
readings that gives adequate performance, then the label stock has too much
variation in its opacity and a better quality stock should be used.
GAP (X.XV)
INPUT (X.
XV)
Section 2. Installation and Configuration
SATOM-8400RV9001041 Rev. DPage 2-27