For owners of these models, the official Canon solution to a waste ink pad full error is to replace the absorber pads (a messy, difficult task) and pay a service center to reset the counter—often costing $50 to $100. The v4905 repack promises the same reset for free, at home, in under five minutes.
Allows technicians to view or print the exact history of the machine, including error logs and total page counts.