Is there any routine maintenance or cleaning I can perform to prevent print errors on my Casio HR-8TM?

To prevent print errors, routine cleaning is beneficial. Periodically, turn off the calculator and open the paper cover. Use a soft brush, cotton swab, or compressed air to gently remove any paper dust, lint, or debris from the print head area and the paper path. You can also gently wipe the platen roller (the rubber roller that grips the paper) with a slightly damp, lint-free cloth to ensure good paper traction. Avoid using harsh chemicals or excessive moisture.