The invention relates to a device for feeding products in sheets into an insertion device before a digital printer, including a lifting system for a stack of laminar elements, which in turn includes an extraction mechanism for the last board, an insertion system with an advance mechanism, a rotation system for the stack(s), a positioning stop, connected to an advance and reverse mechanism, a squaring and scaling station, able to create a loading and accumulating hopper, and a telescopically-adjustable transportation system, with the capacity to move the previously-scaled sheets until the insertion device is fed.

An image forming apparatus includes a stacking tray, a control unit, an alignment member and a supporting mechanism. The control unit performs a rotational sorting. An alignment member includes a leading end wall coming into contact with a leading edge of a portrait sheet stack, a pair of first side walls coming into contact with both side edges of the portrait sheet stack and a leading edge of a landscape sheet stack, and a pair of second side walls coming into contact with both side edges of the landscape sheet stack and aligning the portrait sheet stack and the landscape sheet stack. The supporting mechanism supports the alignment member so as to be movable in an alignment position where the alignment member protrudes from an upper face of the stacking tray and in a retracting position where the alignment member retracts from the upper face of the stacking tray.

An example system includes an advancement mechanism to drive print medium into a stacking region, a clamping mechanism, and a controller. The clamping mechanism includes a trailing edge clamping arrangement in a trailing edge portion of the stacking region and at least one downstream clamping arrangement in a downstream portion of the stacking region, the downstream portion being downstream of the trailing edge portion. The controller is to sequentially actuate the trailing edge clamping arrangement and the at least one downstream clamping arrangement when the advancement mechanism transports a print medium into the stacking region.

According to one embodiment, there is provided an information generating device which generates information to be used in an image forming apparatus that performs continuous printing by binding a plurality of sheets on which an image is formed among the plurality of sheets using a sheet binding mechanism, and includes a blank determination unit. The blank determination unit determines blanks of the sheets in a case of forming the image that shows characters on the plurality of sheets based on the number of the characters formed on the sheets, the types of the characters, the sizes of the characters, and a sheet binding position.