LINCOLNSHIRE, Ill.--(BUSINESS WIRE)--Quill.com, an online business and medical product marketplace for small- and medium-sized businesses and subsidiary of Staples Inc., announced today that it has recycled 4 million ink and toner cartridges since 2011. With Quill’s ink and toner cartridge recycling program, customers receive $2 back in QuillCashTM per recycled print cartridge, with a limit of $20 per month. Quill is the best choice for recycling print cartridges because cartridges can be retur