| 摘要 |
PROBLEM TO BE SOLVED: To provide a developing device in which the friction torque of a developing sleeve is small, the property of assembling it is excellent, its length can be shortened and the miniaturization and the cost reduction of the device can be achieved. SOLUTION: A metal-made flange 4a is mounted on the driving side end of a developing sleeve 1, and a resin-made flange 4b is crimped to an undriven side end. Bearing members 5a, 5b are mounted on both flanges 4a, 4b respectively, and spacer rollers 8a, 8b are provided in the inner parts of the bearing members 5a, 5b respectively. A driving gear 10 is securely fixed to the metal- made flange 4a of the driving side end. |
