User manual Canon Pixma iP4850 (English - 468 pages)
Canon Pixma iP4850 - How to replace printer ink cartridges - YouTube
QY6-0080 Print Head for Canon iP4850 MG5250 MX892 iX6550 MG5320 MG5350 iX6500 US | eBay
Amazon.com: Limouyin QY6-0080 Printhead for Canon, Printer Print Head Replacement for Canon iP4850 MG5250 MX892 iX6550 MG5320 iX6500 : Office Products
Amazon.com: ASHATA QY6-0080 Printhead for Canon Replacement Printer Print Head for Canon iP4850 MG5250 MX892 iX6550 MG5320 iX6500 Printer, Single Black : Everything Else