| 摘要 |
Disclosed is a movable copy board for photographic reproduction apparatus, comprising a movable document supporting frame member, a transparent plate member mounted in the frame for the accommodation of originals, an adjustable auxiliary support element being arranged for movement laterally coplanar with respect to the frame member, and means for rigidly securing the auxiliary support member in either of at least two positions to support oversize or bound materials with respect to the frame and to isolate the documents to be copied from fixed adjacent structure of the reproduction apparatus. The securing means for the auxiliary surface comprise rigid, laterally extending rod elements that move in rod guides in the frame member relative to the frame member.
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