Kodak RP 30 Operator's Manual page 187

Correcting System Conditions
2. Turn the transport belt pulley of the stepper motor for the print drum.
3. Unlock (2) the bottom belt assembly (1) and fold it down.
4. Remove the paper from the print roller (3).
5. Verify that all belts of the lower belt assembly and the print drum sit correctly.
KODAK PROFESSIONAL RP 30 Laser Printer 7-17