| 摘要 |
A system for duplicating images wherein a copy sheet is delivered to a first gripper of an impression cylinder. A first image is transferred to one side of each sheet, and each sheet is then released by the first gripper and delivered to a reversing means. A second gripper includes means for engaging the trailing edge of each sheet and the sheets are thus re-fed to the impression cylinder by this second gripper, trailing edge first. The re-feeding is in synchronism with the second image whereby this second image is transferred to the opposite side of each sheet. The second gripper is provided with inverting means to accommodate the re-feeding. In addition, separate gripper means are provided on the second gripper for engaging the trailing edge of a succeeding sheet whereby the second gripper simultaneously engages the trailing edge of one sheet and the formerly trailing edge of a previously introduced sheet.
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