SATO TG308, Service Manual

Page: 188 / 252

Section 7: Replacement Procedures
Page 7-4
TG3 Series Service Manual
7.2 REPLACING PRINT HEAD (cont’d)
6.
Reconnect two
wiring harnesses
(2, 3) to replacement
print head
(4).
Note:
Each of the printer’s wiring harness connectors are different to ensure proper matching.
7.
Position the
print head
(4) so that the center screw hole is aligned and the alignment pins are aligned with
the alignment holes on top of the print head.
Keep the cables inside the head bracket not to block ribbon and paper routes.
8.
Latch the head, fasten the
center screw
(1) that you have removed on step 3 and tighten securely. Close
the top cover.
9.
Reload the ribbon to the printer and restore power.
Perform the following procedure after replacement of print head:
• Clear the head counter, see
Section 6.3 Counter Clear Mode
for details.
• Print a test pattern to ensure proper function.
• Adjust the print head position if necessary, see
Section 6.16 Adjusting Print Head Position
for
details.
• Adjust the print darkness if necessary, see
Section 6.12 Adjusting Print Darkness
for details.
CAUTION:
EXCERCISE CARE WHEN INSTALLING THE PRINT HEAD TO ENSURE
THAT ITS ELEMENTS ARE NOT DAMAGED DURING INSTALLATION.