Photobase paper should be handled with care before and after printing to prevent surface contamination that may spoil the print. The paper should be processed in an environment of 65°-85° F (18°-30°C) and 40-70% relative humidity (non-condensing) that is clean and relatively dust-free. Also, some media are affixed strongly to the core and care should be taken to avoid machine issues due to the non-release of media at the end of the roll. Store this product in its original packaging in a cool dry area until ready for processing. If storage conditions are outside the recommended operating ranges, allow the paper to acclimate in the specified range for at least 24-48 hours before use. A heat assist of 30-35° C (86-95° F) is helpful with this product, but care should be taken not to heat the paper too  aggressively.