use this canon pg445 black ink cartridge to refill your canon inkjet printer for deep dark blacks and archival quality prints canon ink cartridges are produced with a fine print head technology which ensures consistent precise ink droplet placement less vulnerable to changes in temperature and airflow from print head movement this pigment black ink is used for printing documents on plain paper and ensures crisp sharp text with great longevity the 8ml cartridge allows you to print up to 180 pages of a4 documentscompatible withpixma mg2440pixma mg2540