This is the most common reason people search for this tool. Inside your printer is a porous pad that catches excess ink. When the counter hits a limit, the printer locks up. V4905 allows you to reset this counter (Main and Platen) to zero, getting you back to printing in seconds.
The Service Tool v4905 supports numerous series within the Canon Pixma lineup, though compatibility varies significantly by model. : G Series : Go to product viewer dialog for this item. MG Series : , and others. MX Series : Go to product viewer dialog for this item. Go to product viewer dialog for this item. IP Series : Go to product viewer dialog for this item. MP Series : Go to product viewer dialog for this item. Go to product viewer dialog for this item. Go to product viewer dialog for this item. IX Series : Go to product viewer dialog for this item. download canon service tool v4905
Using the tool on an unsupported model can corrupt EEPROM data, permanently damaging the printer. This is the most common reason people search for this tool