A winding condition generating apparatus includes: an input unit; an output unit; and a condition calculation unit. A winding condition calculation unit includes a learning model created by machine learning using a combination of a winding parameter and a winding condition in producing a wound web that satisfies a target winding quality as training data, and calculates a winding condition of a new wound web using the learning model, from a winding parameter of a new wound web input through the input unit. The output unit outputs the winding condition. The winding parameter includes a web width, a web transport velocity, and a web winding length. The winding condition includes a tension of the web at the start of winding and a tension of the web at the end of winding.

A sheet conveying device includes a detector configured to detect an attitude of a conveyance target medium, a corrector configured to perform a correcting operation based on a detection result of the detector, and circuitry configured to calculate an angular displacement correction amount and a lateral displacement correction amount of the conveyance target medium, cause the corrector to perform the correcting operation in a direction perpendicular to a sheet conveying direction, based on the lateral displacement correction amount, after the corrector grips the conveyance target medium, and cause the corrector to rotate by the angular displacement correction amount of the conveyance target medium before the corrector grips the conveyance target medium and to perform the correcting operation in a direction of rotation of the conveyance target medium, based on the angular displacement correction amount, after the corrector grips the conveyance target medium.

A medium transport apparatus includes a medium transport path through which a medium passes, a path state detection section configured to output a detection value corresponding to a state of the medium transport path, a control section configured to compare the detection value output by the path state detection section with a threshold value for the detection value and determine whether an abnormal condition has occurred in the medium transport path, and a storage configured to store history information including the detection value acquired in the past, in which the control section changes the threshold value based on the history information.

A sheet feeding parameter management system includes: a plurality of air sheet feeding apparatuses each including an air sheet feeder that feeds a sheet and enabled to change a sheet feeding parameter; and a management apparatus connected to the plurality of air sheet feeding apparatuses, wherein each of the plurality of air sheet feeding apparatuses includes: a sheet type information acquisitor that acquires sheet type information; and a hardware processor that: adjusts the sheet feeding parameter; and transmits the sheet type information and the sheet feeding parameter to the management apparatus, and the management apparatus includes the hardware processor that: causes a storage to store an adjustment result associated with the sheet type information and the sheet feeding parameter; and sets, based on the adjustment result, for an air sheet feeding apparatus to be processed among the plurality of air sheet feeding apparatuses.

A control device using, as a learning target, a transporting apparatus, a rotation control section which controls at least one of a rotation speed of a first roller and a rotation speed of a second roller, and a position detection section which detects a position of the transport target matter, the control device including a state variable acquisition section which acquires a state variable and a detection result of the position detection section, the state variable being based on information of a state of the transport target matter and information of an environment to which the transport target matter is exposed, and a learning section which learns a control expression for calculating a control value of the rotation control section based on a dataset containing the state variable acquired by the state variable acquisition section and the detection result of the position detection section.

A sheet supplying unit 1 supplies sheets S one by one. A knife-type folding unit 5 folds the sheet. A first sensor 28 detects the sheet entering the folding position. A second sensor 30a, 30b detects the sheet passing through the opening. A timer 31 measures a time interval from end of sheet detection by the second sensor to start of sheet detection by the first sensor. A sheet feed interval change unit 33 calculates a reduction amount of the sheet feed interval using the measured values of the timer and changes the sheet feed interval based on the reduction amount each time a predetermined number of the sheets are folded.

A winding machine for winding a finishing roll having a radius R of a sheet material on a core having a radius r.sub.c is provided. The winding machine includes: a support drum assembly arranged on a first side of the finishing roll and configured to support the finishing roll from the first side; a rider roll arranged on a second side of the finishing roll opposite to the first side and configured to apply a first nip pressure onto the finishing roll from the second side the finishing roll being supported by the support drum assembly; and a control unit configured to adaptively control the second nip pressure applied by the rider roll onto the finishing roll depending on an ascent rate of the rider roll.

A displacement amount calculation part in a base material processing apparatus calculates the degree of matching between an upstream data section and a downstream data section included in a first and a second detection results, which indicate time-varying changes in the positions of an edge of a base material in the width direction at an upstream and a downstream detection positions. This calculation uses calculation results obtained by sequentially calculating the degrees of matching between sub-data sections in the upstream data section and downstream sub-data sections in the downstream data section. This reduces the amount of computation and enables highly accurate detection of the amount of displacement of the base material in the transport direction on the basis of an identification result of the downstream data section that is highly matched with the upstream data section.

A displacement amount calculation part in a base material processing apparatus calculates the degree of matching between an upstream data section and a downstream data section included in an upstream and a downstream detection results, which indicate time-varying changes in the positions of an edge of the base material in the width direction at an upstream and a downstream detection positions. This calculation uses the results of comparison between signals in a predetermined frequency band extracted from the upstream detection result and signals in the predetermined frequency band extracted from the downstream detection result. Accordingly, a downstream data section that is highly matched with the upstream data section can be identified with high accuracy, and the amount of displacement of the base material in the transport direction can be detected with high accuracy on the basis of an identification result.

A card issuing device for using with a plurality of cards includes a card storage part which accommodates the plurality of cards, a card send-out mechanism which sends out a card among the plurality of cards from the card storage part, a card conveyance mechanism which conveys the card sent out by the card send-out mechanism toward a card discharge port along a card conveyance passage connected with the card discharge port, an optical sensor which is located on a lower side with respect to the card conveyance passage and reads a code indicated on a rear face of the card, and a dust adhesion prevention mechanism which prevents dust from adhering to a reading face of the optical sensor when the optical sensor is not used.