A media conveying apparatus includes a media table on which media are to be placed, a conveyor, an ejector, an ejection table, and circuitry. The conveyor conveys the media placed on the media table. The ejector ejects the media conveyed by the conveyor. The ejection table is movable and disposed above the media table to stack the media ejected by the ejector. The circuitry controls the ejection table to be lowered based on an amount of media stacked on the ejection table while the media on the media table are sequentially conveyed. The circuitry controls the ejection table to be raised in response to completion of conveyance of all the media on the media table.

A pouch roll replacement system comprises a transport part, a replacement chucking part, an unwinder chucking part, a measuring part, and a control part. The transport part transports a replacement pouch roll and is capable of adjusting the central axis height of the replacement pouch roll The replacement chucking part is provided to chuck the replacement pouch roll transported through the transport part and has a predetermined chucking height The unwinder chucking part accommodates a traveling pouch roll and the measuring part measures the distance to the replacement pouch roll seated on the transport part before transporting the replacement pouch roll to the replacement chucking part. The control part controls the transport part so that the central axis height of the replacement pouch roll seated on the transport part is adjusted based on the measurement information of the measuring part and the chucking height of the replacement chucking part.

A transmitter transmits ultrasound to the conveyance path. A receiver receives the ultrasound. A double-feed detector detects whether or not double-feed of a plurality of sheets has occurred. A controller causes the transmitter to transmit ultrasound at a first burst interval when determining the threshold value, and causes the transmitter to transmit ultrasound at a second burst interval, which is shorter than the first burst interval, when detecting the double-feed of sheets. A double-feed detector determines a threshold value that enables distinction between double-feed and single-feed.

A sheet folding apparatus includes a sheet folder and circuitry. The sheet folder includes a sheet folding part, and an additional folding part to reinforce a folding portion in the sheet. The circuitry is to control the sheet folder to form and reinforce the folding portion in the sheet; acquire, before completion of a folding operation, first sheet information of the sheet and first folding information indicating a type of the folding operation on the sheet; run a trained model obtained through machine learning executed using second sheet information of a training sheet, second folding information indicating a type of the folding operation on the training sheet, and multiple training datasets including a folding evaluation value; estimate the folding evaluation value after the completion of the folding operation on the sheet; and determine the type of a control content in the folding operation, based on the folding evaluation value.

A sheet processing machine (10) with a jam detection device (44, 46), the jam detection device (44, 46) comprising a light emitting element and a light receiving element forming a light barrier in a detection zone (53, 78) of a processing station of the sheet processing machine (10). The jam detection device (44, 46) further comprises a control unit (48) being connected to the light receiving element and being adapted to register if the light barrier is interrupted.

A paper jam indication estimation device estimates an indication that a paper jam will occur in a paper feed device, and includes: a sound collector that collects a friction sound produced between sheets of paper when the paper is fed into the paper feed device from a holder holding a plurality of sheets of the paper; an estimator that, based on an output result obtained by inputting information pertaining to the friction sound into a trained model that is a machine learning model which has been trained, estimates a presence or absence of an indication that a paper jam will occur in the paper feed device; and an outputter that, when the estimator estimates that the indication that a paper jam will occur is present, outputs, to the paper feed device, a signal that stops the paper from being fed into the paper feed device.

A media conveying apparatus includes a media table on which media are to be placed, a conveyor, an ejector, an ejection table, and circuitry. The conveyor conveys the media placed on the media table. The ejector ejects the media conveyed by the conveyor. The ejection table is movable and disposed above the media table to stack the media ejected by the ejector. The circuitry controls the ejection table to be lowered based on an amount of media stacked on the ejection table while the media on the media table are sequentially conveyed. The circuitry controls the ejection table to be raised in response to completion of conveyance of all the media on the media table.

The control section of the recording device can execute a power switching step of moving the carriage based on the reference movement amount M, a retry step of performing the power switching step with an amount obtained by subtracting an adjustment amount ma from the reference movement amount M after the adjustment as a reference movement amount M when the power transmission section is not switched from the power non-transmission state to the power transmission state as a result of the power switching step, and a reference movement amount correction step of holding an amount obtained by subtracting the adjustment amount mc from the reference movement amount M after the adjustment as a new reference movement amount M when the power transmission section is switched from the power non-transmission state to the power transmission state as a result of the retry step.

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.