Your cartridge isn't recycled it's refilled big difference.
The printer calculates ink level from the data ( chip) integrated on the ink cartridge and page count. When you install new ink cartridge printer reads data from the cartridge and the ink level is 100% full, but when you get your cartridge refilled ( or buy previously refilled cartridge) the printer gets confused and wrongly calculates ink level or in some cases, it can even know ink level and shows empty. Reprograming refilled cartridge to read 100% on your cartridge model is very hard, and not something a local refill shop can do. If it works you are fine, and you saved some money with a refill.