OKI C810n - A3 Printing at an A4 Cost!!! On a special deal NOW!!!- The C810 from OKI Printing Solutions. Small footprint. Giant step forward in business A3 printing. Never before has fast, A3 colour printing been so outstandingly affordable and remarkably small. Especially one that can be networked. It's a groundbreaking combination from the specialists in printed communications for business.