SATO 9001226(A) Service Manual page 167

6.10 ADJUSTING CUTTER SENSORS (Cont'd)
To calibrate the Edge 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.
EDGE
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 EDGE check pin on the cutter sensor PCB (upper) and [ - ] probe to
SG check pin.
To adjust low level (R-corner/ without tag), ensure no tag is loaded onto the cutter sensor and then use the
6.
microdriver to adjust the VR3 potentiometer until the sensor level is less than or same as +0.5V on the
multimeter.
To adjust high level (tag area), load the tag to the Edge sensor.
7.
Use the microdriver to adjust the VR3 potentiometer until the sensor level is within the range of more than
8.
or same as +2.0V and less than or same as +5.0V .
Table of normal performance values:
Low level (without media/ R-corner area):
High level (tag 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
VR3
Section 6: Checks and Adjustment Procedures
+0.5V or below
+2.0V >= tag area <= +5.0V
Page 6-29