Hi,
My experience is with Office Depot. They pay $3 for each printer cartridge and they have a limit of 5 per day.The money is credited to the school within 3 months. I developed a Recycling Program in my son's school last year and I had included this material as part of our program.
Good luck!
we use cartridges for kids ... you can enlist local businesses too to recycle their cartridges and have your school as beneficiary too as well as send your own in and get $$.
We have used Funding Factory to recycle printer cartridges, but I don't know how the Funding Factory program compares with other companies. We have been happy with using Funding Factory and have used them for several years. It does not generate a huge amount of income, but every little bit counts!