| 摘要 |
The invention provides a toner transfer roller that secures sufficient density especially at an initial stage of printing, and an image forming apparatus using the same. The toner transfer roller has a shaft (1) and an electroconductive elastic layer (3) made of a urethane foam and supported on the circumference of the shaft (1) by means of an adhesive layer (2) in between. The resistance of the roller at an applied voltage of 100 V is 105&OHgr; or lower, preferably 104.5&OHgr; or lower, and the resistance of the roller at an applied voltage of 5 V is 106 to 108&OHgr;. The adhesive layer (2) contains a hot-melting polymeric adhesive and is formed preferably at a temperature not exceeding the melting point of the hot-melting polymeric adhesive.
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