After time or long periods of disuse, poor quality ink, mixing of inks, used cartridges, exposure to air and many other possible reasons your Canon Pixma TS9050 print heads can become blocked by
Printer Cleaning Kit for Canon Pixma printers - Printhead Hospital
User manual Canon Pixma TS9050 (English - 511 pages)
for Canon QY6-0090 Printhead, Replacement Black Print Head Printhead for Canon iP7210, for PIXMA, for TS8020, for Canon TS9020, for TS8040, TS8050, TS8070, TS8080, TS9050, TS9080, etc : : Computers & Accessories
Replacement Printhead QY6-0090 Printhead Print Head/Fit for - Canon/PIXMA TS8020 TS9020 TS8040 TS8050 TS8070 TS8080 TS9050 TS9080 Printer Heads Nozzles : Office Products
6-colors PGI-580 CLI-581 CISS Compatible For Canon PIXMA TS8350/TS8250/TS8150/TS9150 Printers
Black printhead cleaning cartridge for Canon Pixma IP7250 printer
TCT - How to remove and clean Canon Printhead
Ink Pump Cleaning Station Components fits for Canon PIXMA TS9550 TS6250 TS6151
Canon Pixma MP270 Ink Cartridges
Printhead Printer Printhead Parts Printer Print Head Suitable for Canon Printers ts9120 ts8020 ts9020 ts8050 ts8070 Printhead Replacement : Office Products