0345 365 3605
Mon-Thurs 8 - 5:30 & Fri 10 - 5
Hi there Amanda, you can find the cartridges and drums for the Canon IRC5255i on this page: https://www.tonergiant.co.uk/model/Canon-iRC5255i-toner-cartridges/
The drums are at the bottom of the page under the maintenance section.