Oki PM4410 - Manual (Page 16)

E-14 Pacemark 4410 Setup Guide
3. Feed the ribbon behind the printhead (1), threading it around the
black guides (2) on either side of the printhead.
Be careful not to twist the ribbon: this can cause jams.
4. Turn the blue knob counter clockwise (in the direction of the
molded-on arrows) to take up any slack in the ribbon.
Caution! Do NOT turn the knob clockwise: this can cause
the ribbon to jam.
5. Close the printhead access cover.
2
1