DMP 440 (260-2808) Ribbons Faxback Doc. # 4455 Fabric Cartridge (26-2809) Refill (26-2827) If the ribbon is already installed, simply check to see that it is properly threaded between the paper and print head. If the ribbon cassette is not installed, or if you need to replace it due to excessive wear, faint printing, etc., follow this procedure: 1. Set the power switch to OFF. NOTE: When you turn off the power, any information stored in the printer's buffer is automatically lost. 2. Remove the printer cover. 3. To replace the ribbon cassette, grasp the fin on the old ribbon cassette and gently pull it upward. 4. Unwrap the new cassette. Before inserting the new cassette, tighten the ribbon by turning the ribbon feed knob in the direction of the arrow. 5. Gently slide the ribbon between the ribbon mask and the print head. Press down on the left side of the cassette until you hear a click. While rotating the ribbon feed knob in the direction of the arrow, press down the right side of the cassette. 6. If the ribbon feed knob does not match up with the ribbon drive mechan- ism, the cassette will not fall into place. Do not force the cassette into place. Instead, fit it into place gradually while turning the ribbon feed knob. 7. Once the new cassette is installed, tighten thee ribbon by turning the ribbon feed knob in the indicated direction. 8. Replace the printer cover. CAUTION: Printing without paper or ribbon can damage the print head or platen. (abo-07/27/93)