| 摘要 |
<p>A toner cartridge comprises a developing roller and a shaft sleeve (1) provided at the end of the developing roller. The shaft sleeve (1) comprises an outer circumferential surface (11), an inner circumferential surface (12) and two opposite end surfaces (13, 14). The end surfaces (13, 14) are provided with grooves (23, 24), and the grooves (23, 24) are symmetrically arranged along the axial bisecting surface of the shaft sleeve (1).</p> |
