Patent classifications
B65H7/06
Paper conveying apparatus, jam detection method, and computer program
Provided is a paper transporting device and the like capable of suppressing errors in determining jam occurrences. A paper transporting device has: a transport mechanism; an audio signal output unit that outputs an audio signal according to the sound generated during paper transport; an audio jam determination unit that determines, on the basis of the audio signal, whether a jam has occurred; and a control unit that stops paper transport when the audio jam determination unit determines that a jam has occurred. The control unit controls, in the case of card stock or paperboard being transported by the transport mechanism, so that the audio jam determination unit determines whether a jam has occurred at predetermined times using a determination method that is different than the method at other times or so that the audio jam determination unit does not determine whether a jam has occurred.
Conveying apparatus and printing apparatus
A conveying apparatus has first and second trays arranged on an upstream of a conveyor and configured to support the sheet in contact with the conveyor, a feeder configured to feed the sheet on the first tray toward the conveyor, a first sensor configured to output a first signal in response to the sheet being present on the first tray, a second sensor configured to output a second signal in response to the sheet being present between the first tray and the conveyor and configured to output the second signal in response to the sheet being present between the second tray and the conveyor, and a controller configured to execute a removal notifying process to output a notification indicating removal of the sheet on the first tray in response to output of the second signal before a time period since the first signal was output exceeds a threshold period.
Conveying apparatus and printing apparatus
A conveying apparatus has first and second trays arranged on an upstream of a conveyor and configured to support the sheet in contact with the conveyor, a feeder configured to feed the sheet on the first tray toward the conveyor, a first sensor configured to output a first signal in response to the sheet being present on the first tray, a second sensor configured to output a second signal in response to the sheet being present between the first tray and the conveyor and configured to output the second signal in response to the sheet being present between the second tray and the conveyor, and a controller configured to execute a removal notifying process to output a notification indicating removal of the sheet on the first tray in response to output of the second signal before a time period since the first signal was output exceeds a threshold period.
DIGITAL PRINTING PRESS
A digital printing press includes a printing cylinder configured to transport a sheet, a driving device (41) configured to drive the printing cylinder, an encoder (44) configured to detect the phase of the printing cylinder, and first to fourth inkjet nozzle heads (23-26) configured to print the sheet. The digital printing press includes a floating detector (22) facing the printing cylinder and configured to detect an abnormality of the sheet, and a control device (28) configured to control an operation of the driving device (41). The control device (28) includes a function of stopping the driving device (41) when the floating detector (22) detects a floating portion. The control device (28) includes a function of operating the driving device (41) based on the phase of the printing cylinder when the floating detector (22) detects the floating portion and the phase of the printing cylinder when the driving device (41) stops after floating detection and moving the floating portion detected by the floating detector (22) to a predetermined confirmation position. It is possible to provide a digital printing press capable of quickly specifying an abnormality occurrence portion detected during printing.
DIGITAL PRINTING PRESS
A digital printing press includes a printing cylinder configured to transport a sheet, a driving device (41) configured to drive the printing cylinder, an encoder (44) configured to detect the phase of the printing cylinder, and first to fourth inkjet heads (23-26) configured to print the sheet. The digital printing press includes a floating detector (22) facing the printing cylinder and configured to detect an abnormality of the sheet, a display device (8), and a control device (28) configured to control an operation of the driving device (41). The control device (28) includes a function of stopping the driving device (41) when the floating detector (22) detects a floating portion. The control device (28) includes a function of obtaining information specifiable a position of an abnormality occurrence portion based on the phase of the printing cylinder when the floating detector (22) detects the floating portion and the phase of the printing cylinder when the driving device (41) stops after floating detection and displaying the information on the display device (8). It is possible to provide a digital printing press capable of quickly specifying an abnormality occurrence portion detected during printing.
FOIL TRANSFER FILM CARTRIDGE AND FOIL TRANSFER DEVICE
A foil transfer film cartridge includes a supply reel on which a foil film having a widthwise dimension of a first width is wound, and a supply shaft longer in a widthwise direction of the foil film than the first width. The supply shaft is configured to support the supply reel in a manner that allows the supply reel to move in the widthwise direction between a first position and a second position different from the first position.
FOIL TRANSFER FILM CARTRIDGE AND FOIL TRANSFER DEVICE
A foil transfer film cartridge includes a supply reel on which a foil film having a widthwise dimension of a first width is wound, and a supply shaft longer in a widthwise direction of the foil film than the first width. The supply shaft is configured to support the supply reel in a manner that allows the supply reel to move in the widthwise direction between a first position and a second position different from the first position.
PAPER JAM INDICATION DETECTION DEVICE, PAPER JAM INDICATION DETECTION METHOD, AND RECORDING MEDIUM
A paper jam indication detection device is a paper jam indication detection device that detects an indication that a paper jam will occur in a paper feed device, the paper jam indication detection device including: a sound collector that collects a friction sound produced by friction between a plurality of sheets of paper when the paper is fed from a holder holding the plurality of sheets of the paper; an indication detector that detects an indication that a paper jam will occur in the paper feed device based on a decrease in the friction sound collected by the sound collector; and a signal outputter that, when the indication is detected by the indication detector, outputs, to the paper feed device, a signal for stopping the paper from being fed from the holder.
MEDIUM TRANSPORT DEVICE, CONTROL METHOD, AND CONTROL PROGRAM
Provided are an image processing apparatus, a control method, and a control program to accurately determine whether or not a deflection of a fed medium has occurred, and to suitably control a feeding of the medium. A medium conveying apparatus includes a feed module to feed a medium, a motion detection module to detect a first change amount in a feeding direction of the medium placed on a medium tray and a second change amount in a direction perpendicular to a placing surface of the medium tray during feeding of the medium, a determination module to determine that a deflection of the medium has occurred when the first change amount is less than a first threshold value and the second change amount is equal to or more than a second threshold value, and a control module to stop feeding the medium according to the determination result.
THERMAL PRINT APPARATUS AND METHOD OF CONTROLLING THE SAME
Disclosed is a thermal print apparatus including a medium detection sensor arranged from a thermal head at a distance shorter than an outer circumferential length of the platen roller, and a controller. The controller determines that the print medium is wrapped around the platen roller if the print medium is not detected by the medium detection sensor even when the print medium is fed by a feed amount at which the leading edge of the print medium reaches the medium detection sensor after starting of printing on the print medium. In this case, the print medium is fed backward by reversely rotating the platen roller.