SATO 9001226(A) Service Manual page 165

6.10 ADJUSTING CUTTER SENSORS (Cont'd)
To calibrate the I-Mark sensor level with the potentiometer
NOTE: Measure the sensor level directly in the Maintenance mode only. This is because the sensor
protection (measurement to prolong operating life) is enabled in the ONLINE mode.
SG
The potentiometer of cutter unit is used for adjusting the cutter sensor. Set the multimeter to direct-current
5.
voltage mode. Connect [+] probe to IM check pin on the cutter sensor PCB (upper) and [ - ] probe to SG
check pin.
To adjust high level (I-Mark area), ensure the I-Mark portion is set onto the cutter sensor and then use the
6.
microdriver to adjust the VR2 potentiometer until the sensor level shows +2.0V or more on the multimeter.
To adjust low level (media area), load the media (label or tag) to the I-Mark sensor.
7.
Use the microdriver to adjust the VR2 potentiometer until the sensor level is +0.5V or less.
8.
Table of normal performance values:
Low level (media area):
High level (I-Mark area):
If you are having difficulty adjusting the sensor properly, clean the sensor and check the connector connec-
9.
tion. If the problem persists, replace the sensor.
Turn off the power and install the cutter unit.
10.
TG3 Series Service Manual
VR2
IM
Section 6: Checks and Adjustment Procedures
+0.5V or below
+2.0V or more
Page 6-27