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Laser Beam Printer Technology
Oil-Less Fixing Engine Canon's new-concept S Toner initiated a revolution in full-color laser beam printer engine development. The greatest changes were seen in our fixing mechanism. Removing the need for oil simplified the structure of this device and allowed us to reduce its size. As a result, for the firs time users can change the fixing mechanism when required, removing the need for service visits. In addition, we selected a design and materials suited to the characteristics of S Toner. We installed heaters on both the upper and lower fixing rollers, and chose extremely soft silicon rubber, which is completely different from materials used previously, as the base material for the rollers. By applying sufficient heat and expanding the nip area between the upper and lower rollers, S Toner is fixed firmly on the page. Our oil-less fusing system was designed to bring out the best of S Toner. During development, we discovered that, in addition to removing the need for oil, the engine made possible output with low glossiness. The secret of this feature can be found in our soft silicon rubber. In the case of conventional rollers made from brittle materials, the process of applying strong pressure to apply the toner to paper raises the smoothness of fixed toner surface, with the result that output tends to appear glossy. With a much softer material, less pressure is required, and glossiness is reduced. The passion of the Canon engineers who tirelessly strove to improve soft silicon rubber, which originally had a low resistance to heat and lacked durability, brought about the completely unexpected low-glossiness feature of our oil~-less fusing system.  <<back
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