A refrigeration system both cools and heats frozen dessert mix in at least two hoppers and at least two freezing cylinders. A voltage regulator, either external to the integrated circuit or designed as part of the integrated circuit, generates the two voltages. If the characteristics of the photosensitive mediums depending on the attribute information are stored in the database, then the characteristics of the photosensitive mediums are downloaded from the database via the local area network into the certain image forming apparatus. Finally, the present invention relates to a kit comprising the device of the present invention.