Installation - Ricoh DD 4450 Service Manual

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Installation

1.
Insert the tabs (1) at the operation side and the middle.
2.
Turn the thermal head counterclockwise and insert the tab (2) at the front.
3.
Turn the thermal head clockwise and insert the tab (3) at the non-operation side.
Make sure to follow the above procedure or the thermal head will not be installed correctly.
Fit the base's springs [A] over the protrusions [B] on the underside of the thermal head (6
points).
While fitting the tops of the springs [A] over the protrusions on the underside of the
thermal head, make sure that all protrusions are properly fitted into the springs.
Adjust the thermal head voltage (
installing the new thermal head
C279
p.4-48 "Thermal Head Voltage Adjustment") after
4-40
SM

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