The manufacturing process for toner used in copying machines and printers can generate toner with nonstandard particle sizes which, depending on the type of toner, does not permit its reuse as toner, resulting in waste toner. Canon utilizes a waste toner solution solidification system to harden waste toner, modifying its properties to enable its reuse as material for factory pallets and other applications.
Waste Toner Reuse Process in Production Plants


