Thermal transfer ribbon shaft damping structure and printer

The thermal transfer ribbon shaft damping structure comprises a shaft body and an installation seat, the shaft body is rotatably installed in a shaft hole of the installation seat, a sleeve is detachably installed on the outer surface of the end portion of the shaft body in a transmission mode, a first torsion spring is tightly arranged on the outer surface of the sleeve in a sleeved mode, a support is further arranged on the outer surface of the sleeve, and the first torsion spring is arranged on the support. And the first torsional spring is positioned between the inner ring of the support and the sleeve. The utility model has the beneficial effects that the first torsion spring is tightly sleeved on the outer surface of the sleeve, and the two ends of the first torsion spring are clamped on the inner wall of the inner ring of the support, so that when the shaft body drives the sleeve to rotate, no matter whether the sleeve rotates forwards or reversely, the clamping jaw at one end of the first torsion spri