Section 6: Checks and Adjustment Procedures
Page 6-14
TG3 Series Service Manual
6.9 ADJUSTING AND CHECKING SENSORS (Cont’d)
3.
Press the
/ arrow
buttons to adjust the sensor level to
0.5V
or below and press the
FEED
button.
4.
Re-position the media, with the I-Mark of the media rests over the I-Mark sensor.
Note:
To stabilize the sensor level, make sure the print head assembly is locked and the media is threaded cor-
rectly.
5.
Confirm the new sensor level (I-Mark portion) to see if the difference between high level (I-Mark portion)
and low level (blank media) is
0.9V
or more.
6.
Press the /
arrow
buttons to switch to SLICE LEVEL adjustment screen. Press the
/ arrow
buttons
to adjust the slice level. Setting the slice level to
0.0V
enables automatic setting. The slice level can be set
within the range of
0.0V
to
3.2V
. Save changes by pressing the
FEED
button.
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.
These checking activities require the use of a multimeter and may be performed with or without the assistance
of the
SATO Test Module
.
1.
Remove the side cover to reveal the
Main PCB (CONT board)
. Please refer to
step 2
and
3
of
Section
6.2 Checking the Direct-Current Power Supply
.
2.
When using the optional Test Module for checking,
connect the optional
Test Module
to the
CHK
connector as shown. Set the digital multimeter to direct-current voltage mode. Connect
[+]
probe to “
SIG
”
and
[-]
probe to “
GND
” of
Test Module
. Turn the dial to “
4
”.
If Test Module is not available,
connect
[+]
probe of the multimeter to “
CH1B
” and
[-]
probe to “
CH1A
” of
the
CHK
connector as specified above.
3.
Disengage the
Head lock Lever
and the
Lid Latch
to allow media loading. Physically position the media,
with the blank media (label/tag) rests over the I-Mark sensor.
Note:
To stabilize the sensor level, make sure the print head assembly is locked and the media is threaded cor-
rectly.
4.
Use the microdriver to adjust the
IM
potentiometer (
VR5
) until the sensor level shows
+0.5V
or below on
the multimeter.
Connect [ - ]
probe here
0
1
2
3
4
5
6
7
8
GND
SIG
5B
4B
3B
2B
1B
6B
5A
4A
3A
2A
1A
6A
Connect [ + ]
probe here
Set Dial to 4
Test
Module
CONT PCB
VR5
CHK
(IM)
Top view of
CHK
Connector
Connect [ + ] to point 1B
Connect [ - ] to point 1A
Summary of Contents for TG308
Page 1: ...Service Manual For printer model TG3 Series www satoamerica com PN 9001226 A...
Page 6: ...Table of Contents Page iv TG3 Series Service Manual This page is intentionally left blank...
Page 7: ...Section 1 Introduction TG3 Series Service Manual Page 1 1 INTRODUCTION...
Page 251: ...Section 9 Sato Group of Companies TG3 Series Service Manual Page 9 1 SATO GROUP OF COMPANIES...
