Copier for greater than standard length documents

In an electrostatic reproduction machine including a photoconductive member moveable past processing stations including means for charging said member, means for exposing said member to document information to produce latent electrostatic images thereof on said member, means for developing the electrostatic images on said member and a discharge lamp positioned upstream from said developing means at a predetermined position operative to discharge said photoconductive member for a predetermined period prior to its advancing to the development station, and the improvement wherein circuit means for providing control signals in a first mode of operation to activate said discharge lamp at a preset interval corresponding to a standard document dimension,

• said circuit means includes means for providing control signals in a second mode of operation to activate said discharge lamp at preset intervals which are delayed from a reference associated with the intervals of said standard document dimension to enable imaging from document information having a dimension greater than said standard document dimension, and
• switching means for selecting either said first or second mode of operation at the option of a machine operator.