A feeding device for feeding stacks of standing flat-folded cartons to a receiving station, comprising a conveyor track having a flat bearing plane adapted to support the stacks, where the conveyor track comprises at least two rows of teeth where each row of teeth comprises a plurality of spaced apart teeth adapted to support the stacks of flat-folded cartons, where the teeth can be positioned in either an erected position or in a folded position, and where the feeding device comprises a guide track arranged along the bearing plane adapted to hold the teeth in the selected position, and where the guide track ends at an end region of the conveyor track, such that the teeth are unsupported at the end region. The advantage of the invention is that stacks of flat-folded cartons can be merged continuously at an outfeed region.

Described embodiments include a system and method. A print sheet media management system includes a feeder apparatus configured to transfer a sheet from a stack of printable sheet media to a print engine. The system includes a weight sensor configured to sense a weight of the stack of printable sheet media. The system includes an evaluation circuit configured to estimate the number of sheets in the stack of printable sheet media in response to (i) a sensed weight of the stack of printable sheet media before a sheet of the stack of printable sheet media is transferred and (ii) a sensed weight of the stack of printable sheet media after the sheet of printable sheet media is transferred. The system includes a communications circuit configured to transmit data indicative of the estimated number of printable sheets in the stack of printable sheet media.

A feeding device for feeding stacks of standing flat-folded cartons to a receiving station, comprising a conveyor track having a flat bearing plane adapted to support the stacks, where the conveyor track comprises at least two rows of teeth where each row of teeth comprises a plurality of spaced apart teeth adapted to support the stacks of flat-folded cartons, where the teeth can be positioned in either an erected position or in a folded position, and where the feeding device comprises a guide track arranged along the bearing plane adapted to hold the teeth in the selected position, and where the guide track ends at an end region of the conveyor track, such that the teeth are unsupported at the end region. The advantage of the invention is that stacks of flat-folded cartons can be merged continuously at an outfeed region.

The plant comprises includes a visual inspection system provided with one or more vision units. The vision units detect and recognize, through adequate electronic processing, the images printed on at least one face of the corrugated board web. Based on the image recognition, the control system recovers, from a lookup table, information for setting the converting line to produce the subsequent order of sheets.