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Section 2. Installation
SATO M-84PRO PN 9001105 Rev. A Page 2-13
SENSORS
The M-84PRO printers contain three sensing units; a Ribbon End motion sensor, a Head Open micro-
switch and a Label Indexing Sensor.
RIBBON END SENSOR Detect motion of the Ribbon Supply Spindle and signals the printer
when it is turning.
HEAD OPEN SENSOR A micro-switch that is activated when the head is unlatched.
LABEL INDEXING SENSOR The sensing assembly contains two types of sensors, one for label gap
and one for eye-mark sensing. The sensors are adjustable over a
limited range.
Label Gap Sensor
Reflective Sensor
Eye-Mark on
bottom of
liner.
Maximum number of
print head dots is
dependent upon the
model.
The range of sensor adjustment can be increased to allow
the Gap sensor to be positioned as close as 3 mm from the
inside label edge. Contact SATO for information on how to
make this modification.
14 mm
min
Reflective
Label Gap
7 mm to 54 mm