| 摘要 |
Sheet processing apparatus are provided operating in a xerographic printing apparatus employing single-component magnetic toner. The inventive features of the sheet processing apparatus are directed toward smooth transportation and discharge of printing sheets sent through the printing apparatus (11), across a sheet transport guide (45), and through an image fixing and sheet transporting unit (16) which finally discharges the printing sheets. Conductivity of the transport guide (45) is selected by the material of which it is made, specified herein to have superficial resistivity in the range of ten thousand to one hundred million megohms. Charge applied to a printing sheet to electrostatically attract the magnetic toner during the xerographic printing is thus drained by the transport guide (45) gradually enough not to disturb the adhesion of the toner to the sheet, yet rapidly enough to prevent the sheet from being curled upward by electrostatic attraction toward a residual toner container (37) just over the downstream end of the guide, in the optimally compacted arrangement of the various components of the sheet processing and xerographic printing apparatus into a facsimile machine or the like. <IMAGE> |
