Abstract: The invention is directed to a device for removing water from the solvent recovery system of a fast printer. Water recovered in the solvent recovery system from solvent vapor and water vapor is passed into the open air outside of the printer frame without generating damage due to water corrosion within the printer. Recovered water is passed from a discharge pipe to an evaporation chamber containing either a heated evaporator container or to a unheated trough containing upstanding absorbent mats which suck the recovered water up into an open air space above the trough. A stream of dry warm air is generated by blowers within the printer and passes through the evaporation chamber picking up water vapor. The vapor-air mixture produced in the evaporation chamber then passes through slots formed in the printer assembly frame directly into the open air.

Abstract: A stacking device for a prefolded endless paper-web in a paper stacker, in which the paper-web is stacked on a paper support which is designed to move downward in accordance with the stack height, a compensating element being provided which moves downward with the paper support and is adapted to elevate the central portion of the stack, with respect to the folded edges thereof, to reduce the formation of a depression in such central portion resulting from the transversely folded edge portions, means being provided for varying the elevation height of the compensating element as a function of the stack height.