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Electrostatographic apparatus having a transfer drum

  • US 4,712,906 A
  • Filed: 01/27/1987
  • Issued: 12/15/1987
  • Est. Priority Date: 01/27/1987
  • Status: Expired due to Term
First Claim
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1. In a transfer apparatus, for an electrostatographic copier, printer or the like, for transferring a plurality of toner images, electrostatically held to a moving image member, to copy sheets which copy sheets are moved to said transfer apparatus in timed relation with the arrival of the toner images to be transferred, said transfer apparatus including a transfer drum having means for securing a first copy sheet to the periphery of said drum and means for rotating the drum to bring the secured copy sheet into transfer relation with more than one of said images as said images are moved by the image member past the transfer apparatus, to transfer said more than one images in registration to the first copy sheet;

  • the improvement wherein said transfer drum includes means for securing a second copy sheet thereto to receive, in registration, its own set of toner images from the image member, during said rotation of the transfer drum.

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