Water Resource Conservation
Sustainable Use of Water Resources at Production Sites
Water Recycling at Production Sites
Canon promotes the recycling of water resources. For example, taking into consideration its impact on the marine ecosystem of nearby Beppu Bay, which abounds with precious natural resources and habitats, the Kitsuki Plant of Oita Canon employs a fully closed wastewater system that discharges only rainwater. At Canon Ecology Industry, wastewater from equipment used in air conditioning and other infrastructure is treated and recycled for reuse in the production process of toner and ink cartridges. Canon Inc., Taiwan’s production site re-uses the wastewater from the cleaning equipment in the polishing process. We are also working to keep water consumption at our marketing sites to an appropriate level by measuring and monitoring the amount of water used at main sites. Canon Marketing Japan is reducing water consumption at its head office building by using recycled water supplied by the Tokyo Sewerage Bureau for flush toilets and other purposes. Although there was a larger volume of cooling water used for facility maintenance and due to high prevailing temperatures, total water consumption was down by 3.3% in 2025 from the previous year to 8,405,000 m3, as various Canon sites are making ongoing efforts to reduce water usage.