| 摘要 |
An electrophotographic copier having a recirculating automatic document feeder whereby a stack of original documents are top-fed, one at a time, to the copier's platen for copying, and after such copying, rejoin the stack by operation of means which cyclically lift the stack to enable the returning document to be deposited below the stack, and then lowers the stack to cause such a returned document to become the lowermost document of the stack.
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