Abstract: A sheet collecting device for collecting sheets leaving the printing device, which includes a delivery rack for collecting sheets, a front edge stopper for collecting the front edge of a sheet in a first position of the sheet collecting device in which the sheet is deposited on the delivery rack, and wherein the sheet collecting device can be placed in a second position in which the sheets can be deposited on the delivery rack without the intervention of the front edge stopper.

Abstract: A nozzle cleaning device for an ink jet printer containing a plurality of ink reservoirs, the cleaning device including a pressure source and a valve mechanism for selectively coupling the pressure source to the ink reservoirs, wherein the valve mechanism comprises a valve housing, and a piston movable within the valve housing and defining therewith a first pressure chamber and a second pressure chamber, said first and second pressure chamber being connected to the pressure source such that during idle conditions, the pressure source is in communication with the ink reservoirs through said first pressure chamber, and during cleaning conditions and through the movement of the piston, the pressure source is in selective communication with individual ink reservoirs through said second pressure chamber.