| 摘要 |
<p>An electrostatic type copier or reproduction machine having one or more magnetic brush devices for developing the latent electrostatic images formed on the copier photoconductive member, such magnetic brush devices being grounded to permit use of uncoated developer carrier without shorting the magnetic brush or brushes. To suppress image background and enhance image development in the absence of bias on the magnetic brushes, a pre-development corotron is used to place a charge of opposite polarity on the latent electrostatic images to reduce background charge.</p> |
