PureCircle Ltd. PureCircle Ltd. is a producer of high-purity stevia ingredients to the global food and beverage industry. The company focuses on encouraging healthier diets around the world through the supply of natural ingredients. Its vision to lead the global expansion of stevia as the next mass volume, natural-origin sweetener.
Per HP Manual: The life of the imaging drum depends on the number of black-only or color pages that print. jobs require. An HP color LaserJet 2550 series printer imaging drum could last an average of. 20,000 pages when printing black-only pages and 5,000 pages when printing color pages.
Manufacturer's Suggestion. The standard manufacturer's suggestion for replacing the blades on an electric razor is every 12 months. This recommendation is found on the instructions for Norelco, Braun and Panasonic.