Printer developing roller capable of rotating stably

The utility model provides a printer developing roller capable of rotating stably, which comprises a casing, a rotating groove is arranged on the side surface of the casing, a support shaft is arranged in the rotating groove, one side of the support shaft far away from the rotating groove is fixedly connected with a roller body, a detection sleeve is arranged on the outer side of the support shaft, and the roller body is fixedly connected with the detection sleeve. And a detection mechanism is arranged in the detection sleeve. According to the printer developing roller capable of rotating stably, when the developing roller body works, the supporting shaft can drive the developing roller body to rotate, one end of the supporting shaft is located in the rotating groove to rotate, after carbon powder in a printer enters the rotating groove, the supporting shaft rotates abnormally, non-circumferential rotation occurs, and the roller body is driven to rotate abnormally and synchronously; at the moment, the detecti