| 摘要 |
<p>DEVELOPER SEAL A developer housing seal for electrophotographic apparatus in which an image developer material comprising magnetic particles is applied to a photoreceptor surface inside a developer housing held adjacent the photoreceptor. A magnetic seal is provided for retaining the developer in the developer housing, utilizing the magnetic particles, which are magnetically attracted by the magnetic fields of the seal. The seal is Ushaped, having a channel with two parallel spaced thin magnetic pole edge seal areas and a much wider recess therebetween to contain captured magnetic material. A seal is formed which reduces the likelihood of photoreceptor damage. A thin nonmagnetic overlying protective shield slides off for cleaning of the seal.</p> |
