| 摘要 |
A developing roller in a one-component developer type image recorder and held in contact with an image carrier for developing a latent image in the form of an electrostatic charge provided on the image carrier, has a metal core, an elastic layer provided on the core and constituted by rubber and a softener, and a toner retaining layer provided on the elastic layer for retaining toner thereon. The toner retaining layer covers all of the surfaces of the elastic layer, i.e. the peripheral surface and opposite ends. The toner retaining layer is implemented by a resin or rubber which is oil-resistant and does not show affinity to the softener.
|
