SATO TG308, Руководство по обслуживанию

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Section 7: Replacement Procedures
Page 7-24
TG3 Series Service Manual
7.16 REPLACING GAP SENSOR
The Gap sensor assemblies may need replacement if cleaning does not improve their functionality.
1.
Before proceeding, switch off the printer and remove the main cover, left housing cover and the top left
housing cover to gain access to the internal (electrical and mechanism) hardware. Refer to
Section 7.1
Removal of Housing cover
for details.
2.
Unscrew five
screws
to detach the
Main (CONT) PCB bracket
from the printer frame. Refer to
Section
7.6 Replacing Torque Limiter (Ribbon Unwinder)
for details.
3.
From the mechanism side, remove
6 screws
(1) securing the
Print head assembly
(2) on the other side
of the printer frame. Disconnect the two
wiring harnesses
(Head cable and Power head cable) from the
Print head assembly and place them aside for later reassemble.
4.
Detach the
Cutter unit
.
Unscrew the
shaft
that holds the
cutter unit
in place, removed the
shaft
and set aside. Carefully lift and
pull out the
cutter unit
. Refer to
step 1
of
Section 6.10.1 To adjust Gap/ Center hole sensor
.
5.
Detach the
Operator Panel assembly
based on
step 2
and
step 3
of
Section 7.15 Replacing Operator
Panel PCB
.
6.
Remove the
Power route assembly
from the
printer frame
based on
step 3
to
step 7
of
Section 7.10
Replacing Stepper Motor
.
7.
Remove the
Media route frame assembly
(4) from the
base cover
(5).
Remove six
screws
(3) to detach the
base cover
(5)
from the
printer frame
and the
Media route frame
assembly
(4).
Two
screws
are on the front position where the
Cutter
unit
was installed, two
screws
are on the back position
where the
Media guide
is and two
screws
attached to
the
printer frame legs
on the mechanism side of the
printer.
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2
3
4
5