FUJITSU DL3750+/3850+ - Manual (Page 142)

User's Manual 6-2
MAINTENANCE
3. Use a soft, damp cloth to wipe the exterior of the printer, including
the covers and separator. A mild detergent may be used.
CAUTION
Do not use solvents, kerosene, or abrasive cleaning materials that
may damage the printer.
4. Open the front cover of the printer and remove the ribbon cartridge.
Using a soft vacuum brush, gently vacuum the platen, print head
carriage, and surrounding areas. You can easily slide the print head to
the left or right when the power is off. Be careful not to press too hard
on the flat ribbon cable that extends from the print head carriage.
Flat cable
Printer interior
5. Re-install the ribbon cartridge. Close the front cover.
6. Open the ejection cover. Vacuum the rollers, paper entry slot, and
surrounding areas.
7. Raise the cut sheet stand and the back cover. Vacuum the forms
tractors and surrounding areas.