FUJITSU DL3750+/3850+ - Manual (Page 28)

SETTING UP
2-8 User's Manual
CAUTION
Do not turn the ribbon feed knob in counterclockwise direction.
4. Verify that the power to the printer is off.
(Make sure that the circle mark on the power switch is pressed.).
Installing the ribbon cartridge
5. Move the paper thickness lever to the D position.
6. Open the front cover.
Turn the knob
clockwise.
3. Using the procedure below, release the roller from the LOCK position
and turn the ribbon feed knob clockwise to take up any ribbon slack.
Push in the gray ribbon release tabs on the side of the ribbon cartridge
to release them, and slide the roller from the LOCK position to the
FREE position.
Ribbon feed knob
Preparing the ribbon cartridge
Roller
Release
tabs