Check out the full list of what staples accepts now part of their expanded recycling programs.
https://www.staples.com/stores/recycling#workingtowardsabrightertomorrow
More companies should start to follow staples lead and offer return points for packaging and products that reach their end of life.
I worked for Staples in my college years. They used to throw away bales upon bales of recyclable products every day while pumping up their image as a green place to shop or whatever. Maybe it was just the management of that specific store. Anyway, good on Staples for offering recycling services.
Unfortunately this could be the case and the cynic in me feels this could be a green washing scheme like you said.
But hopefully with what some cities are doing now with charging the full economic and social cost of blue & black bin programs to companies and manufactures this could start having a real good impact.
Specially since most manufactures shift the cost of recycling and trash to communities and tax payers. Instead this cost should be internalised by the manufacturer and retailer.
Hopefully this kind of shift promotes better sustainable packaging, and prevents things like planed obsolescence and fast fashion.