Fujitsu DL9300 User Manual page 149

MAINTENANCE
6-4
3. Move the paper thickness indicator to position R to widen the
head gap if the indicator is not positioned at R.
Paper thickness indicator
4. To remove the ribbon cartridge, press the ribbon release levers
located on either side of the cartridge and carefully lift the
cartridge out of the printer.
Removing the ribbon cartridge
User's Manual