SATO CG408 Operator's Manual page 62

Section 5: Cleaning and Maintenance
5.4 EASY REPLACEMENT OF PARTS (cont'd)
7.
Insert the left shaft of the new print head assembly into
the hole on the left side of printer. (see circled area).
8.
Align the two circular recess of the print head bracket to
the two springs attached to the top cover frame. At the
same time, fix the fulcrum shaft of the print head bracket
to the hooks. While pressing the print head, slide the print
head release lever to lock the print head assembly in
place.
9.
Restore power, reload media and ribbon, reset the head
counter and perform a test print to ensure that the print
head is connected properly.
5.4.2 Releasing/ Replacing the Platen roller
1.
Make sure the printer is powered off and remove the power
cable.
2.
Lift the Top Cover.
3.
Locate the two platen bearings on each side of the platen
roller, and turn the handles in the direction as shown.
4.
Lift up the defective platen roller assembly with the
handles and replace it with a new one.
5.
Follow the above steps, in reverse sequence, to
reassemble the parts. Make sure that the platen bearing
snaps back in position.
Perform a label feed to ensure the platen roller is
assembled correctly.
Page 5-6
Hooks
Fulcrum shaft
Circular
recess
CG4 Series Operator Manual