SATO 9001226(A) Service Manual page 159

6.9 ADJUSTING AND CHECKING 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.
These checking activities require the use of a multimeter and may be performed with or without the assistance
of the SATO Test Module .
CONT PCB
Remove the side cover to reveal the Main PCB (CONT board) . Please refer to step 2 and 3 of Section
1.
6.2 Checking the Direct-Current Power Supply .
When using the optional Test Module for checking, connect the optional Test Module to the CHK
2.
connector as shown above. Set the digital multimeter to direct-current voltage mode. Connect [+] probe to
"SIG" and [-] probe to "GND" of Test Module . Turn the dial to "8" .
If Test Module is not available, connect [+] probe of the multimeter to " CH5B " and [-] probe to " CH1A " of
the CHK connector as specified below.
To adjust low level (R-corner/ edge), ensure no tag is loaded onto the printer and then use the microdriver
3.
to adjust the KADO.R potentiometer ( VR9 ) until the sensor level shows +0.6V or below on the multimeter.
To adjust high level (tag), load the tag to the Edge sensor.
4.
Disengage the Head lock Lever and the Lid Latch to allow media loading. Then, physically position the
tag rests over the Edge sensor .
Use the microdriver to adjust the KADO.R potentiometer ( VR9 ) until the sensor level shows +2.3V or
5.
more.
Table of normal performance values:
Low level (without media/ R-corner/edge area):
High level (with tag/ print area):
If you are having difficulty adjusting the sensor properly, clean the sensor and check the connector connec-
6.
tion. If the problem persists, replace the sensor.
TG3 Series Service Manual
(KADO.R)
VR9
CHK
Connect [ + ] to point 5B
Top view of
CHK
Connector
Connect [ - ] to point 1A
Section 6: Checks and Adjustment Procedures
Set Dial to 8
Connect [ - ]
probe here
Connect [ + ]
probe here
+0.6V or below
+2.3V or above
Test
Module
1A
2A
3A
0
4A
8
1
5A
7
6A
2
1B
6
3
2B
5
3B
4
4B
5B
GND SIG
6B
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