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CLEANING THE SENSORS
There are two sensors that are used to control the positioning of the label. One is a
transmissive see-thru sensor that detects the edge of the label by looking through the
backing paper which is translucent and detecting the presence of the opaque label.
The other is a reflective sensor that detects the light reflected from the bottom of the
label liner. When a printed black Eye-Mark passes through the beam, the light is no
longer reflected back to the sensor detector, indicating to the printer that it should
use this position as the start of a new label. When dust, dirt or other foreign matter
interferes with the light path of either of these sensors, the results is erratic label
positioning. These sensors should be cleaned regularly, at least every two rolls of
labels.
Supplies Needed: SATO SA070 Cleaning Kit
1. Turn the printer off and remove the power cable.
2. Open the Top Cover.
3. Open the Print Head Assembly by pushing the
Head Latch toward the rear of the printer. The
Print Head Assembly is spring-loaded and will
automatically open as soon as the Head Latch is
disengaged. The sensors are built into the left
hand Label Guide so that they move whenever
the Label Guides are adjusted for different
media widths.
4. Apply SATO Thermal Print Head Cleaner to
one of the cotton swabs.
5. Use the cotton swab to clean any foreign matter from the exposed surface of the
sensors by inserting the cotton tip in the paper slot and brisky cleaning it with a
back and forth motion.
Section 3: Cleaning and Maintenance
SATOCTSeriesPrinters9001069A Page3-5