Compact fast and affordable a3 colour printers to enhance your business documents the c831 is the ideal a3a4 colour printer for small to medium businesses or workgroups looking for fast high quality high volume print on demand capabilities in house with fast print speeds and high capacity toners you can rely on this device to deliver on your day to day business printing needs fast robust and superb colour print quality the c831 is built on tried and tested led technology that your bus