发明名称 Image forming apparatus with interchangeable developing devices
摘要 The image forming apparatus is equipped with a first photosensitive member, a plurality of first developing devices, a second photosensitive member, and a second developing device. In the image forming apparatus, toner images on the first photosensitive member and the second photosensitive member are transferred onto a transfer medium while one is superimposed on the other, whereby it is possible to form a high quality image using deep-color and light-color toners of the same hue and to prevent a deterioration in gradation property.
申请公布号 US6819902(B2) 申请公布日期 2004.11.16
申请号 US20030396515 申请日期 2003.03.26
申请人 CANON KABUSHIKI KAISHA 发明人 TOYOHARA YUICHIRO;TANAKA AKINORI
分类号 G03G15/01;(IPC1-7):G03G15/01 主分类号 G03G15/01
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