Is it possible to drain the waste ink from the Canon G2010 into an external container instead of cleaning/replacing the pads?

Yes, modifying the printer to drain waste ink into an external container is possible, but it's an advanced modification. It involves attaching a tube to the printer's waste ink outlet and directing it to a container. This prevents the ink absorber from filling up. However, it requires careful execution and carries the risk of damaging the printer if not done correctly. Make sure you understand the process thoroughly before attempting it.