Methods and apparatus, including computer program products, are described for controlling web tensioning in a food packaging machine comprising a plurality of sub-systems. One or more local variable value are received, which indicate measurements by the food packaging machine of one or more physical parameters for a web tensioning sub-system. One or more remote variable values are received, which indicate measurements by the food packaging machine of one or more physical parameters for one or remote sub-systems. One or more control parameter values are determined for the web tensioning sub-system, by processing the remote and the local variable values using a reinforcement learning model and a local control model. One or more control parameters of the web tensioning sub-system are adjusted in accordance with the determined control parameter values.

A medium processing apparatus includes a liquid applier to apply liquid to a medium, a post-processing device to perform post-processing on a plurality of media including the medium to which the liquid is applied by the liquid applier, a movement assembly to move the liquid applier and the post-processing device in a width direction of the medium, a first liquid storage on the liquid applier to store the liquid applied to the medium, a second liquid storage to store the liquid supplied to the first liquid storage, a liquid supply passage through which the liquid is supplied from the second liquid storage to the first liquid storage; and processing circuitry to control the movement assembly. The processing circuitry stops the movement assembly when a load of a driving source of the movement assembly exceeds a threshold.

A medium processing apparatus includes a housing, a binder, first and second sensors, and circuitry. The housing has a space in a part. The binder is disposed in the space to perform a binding operation on a sheet bundle. The first sensor is in the space to detect a first side of the sheet bundle in a first direction, and output a first detection signal. The second sensor is adjacent to the first sensor in the space to detect a second side of the sheet bundle adjacent to the first side in a second direction, and output a second detection signal. The circuitry is to input the first and second detection signals, output a notification that the binding operation is executable by the binder, and cause the binder to perform the binding operation in response to receiving an instruction to start the binding operation.

An apparatus for processing sheets includes a conveyor that conveys a sheet on which a plurality of fold lines are set, a folder that folds the sheet conveyed by the conveyor along the fold lines, an applicator that applies an adhesive to the sheet and a controller configured to control the conveyor, the folder, and the applicator. The controller includes an acquirer configured to acquire processing information of the sheet, a fold line determinator configured to determine, based on the processing information acquired by the acquirer, which one of the plurality of fold lines along which the sheet is to be folded by the folder and a folding controller configured to control the folder to fold the sheet in accordance with determination of the fold line determinator.

A medium processing apparatus includes a liquid applier to apply liquid to a part of a medium to perform liquid application, a post-processing device to perform desired processing on a bundle of media including the medium subjected to the liquid application, a first liquid storage to store the liquid for the liquid application, a second liquid storage to store the liquid supplied to the first liquid storage, a liquid supplier to supply the liquid from the second liquid storage to the first liquid storage, a liquid detector to detect a liquid level of the liquid in the first liquid storage, and processing circuitry to control operations of the post-processing device and the liquid supplier. The circuitry changes a liquid level at which liquid supply is stopped in a liquid supply operation executed by the liquid supplier, according to a remaining amount of the liquid in the first liquid storage.

A binding processing device includes: a paper support unit that supports a paper bundle; a pressing unit that presses the paper bundle; and a binding processing unit that performs binding processing by moving binding teeth toward the paper bundle to apply pressure to the paper bundle, the binding processing unit moving from a binding position of the paper bundle while the paper bundle is being pressed by the pressing unit.

A binding processing device includes: a binding processing unit that performs binding processing by moving binding teeth toward a paper bundle to apply pressure to the paper bundle; and a control unit that controls a movement of the binding processing unit, in which the control unit increases a pressure-applying force of the binding teeth in a case where movement of the binding teeth in the binding processing of the paper bundle does not reach a predetermined amount of movement.

A binding device includes a pair of gears to rotate, the pair of gears crimping media to be bound while conveying the media to be bound entering an engagement portion of the pair of gears that are rotating, and a guide unit on one side in a rotation-axis direction of the pair of gears with respect to the pair of gears, the guide unit extending from one side to another side with respect to the engagement portion in a conveyance direction in which the media to be bound is conveyed by the pair of gears, the guide unit including a guide to guide a bound end of the media to be bound, the guide being inclined to be disposed closer to the pair of gears as a downstream portion of the guide in the conveyance direction with respect to the engagement portion goes downstream in the conveyance direction.

A recording medium processing apparatus includes: a binder that performs a binding process on a recording medium; and a moisture supplier that supplies moisture in a form of mist to a binding portion of the recording medium, the binding portion being a portion subjected to the binding process performed by the binder.