| 摘要 |
<p>A cylindrical developer carrier which is provided with an alumite layer covering a uniformly-roughened conductive substrate surface, the alumite layer being uniformly provided with pores reaching the substrate, whereby allowing toner to be sufficiently friction-electrified on a developer sleeve and to be carried and conveyed as a deviation-free, uniform layer after repeated uses, and causing no difference in developing capability independently of a developing history.</p> |
