Canon developed its Cleaner-Less/Toner-Reuse System to achieve a balance between low operating costs and consistent image quality in color network digital MFPs.

With MFPs, toner often remains on the photosensitive drum following the transfer of toner from the drum to the intermediate transfer belt. Earlier systems used a cleaner mechanism to recover this toner. Canon's Cleaner-Less/Toner-Reuse System replaces this mechanism with a charged brush, charging roller, and developing roller. Toner is recovered into the developing unit by the developing roller for later reuse. Once the remaining toner is recovered, the charged brush recharges toner particles charged at different potentials for reliable recovery and reuse.

This system ensures the most efficient use of toner possible by using toner that would otherwise be disposed of as waste. And removing the cleaner mechanism eliminates the need to scrape the photosensitive drum surface with a cleaning blade, facilitating prolonged drum life while maintaining high image quality.