Method and device for detecting a true product jam in a folder
AssigneeHeidelberger Druckmaschinen AG
InventorsFrancoise Marie Foret, Didier Marcel Rousseau
Life of this patent
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Abstract
A method for detecting a copy jam or buildup in a folder uses sensors assigned to a copy transport path for determining a sequence of copies along the copy transport path. The sensors are formed of a transmitting part and a receiving part, and the method includes having the sensors release an input signal to a paper jam-detection device in response to the presence of copies detected by the receiving parts of the sensors. The input signal produces a counting pulse. A system for performing the method and a folder including the system are also provided.
Claims12
A method for detecting a copy jam or buildup in a folder, equipped with sensors disposed in the folder to monitor a copy transport path of the folder for detecting a sequence of copies along the copy transport path, the sensors, respectively, being formed of a transmitting part and a receiving part, the method which comprises placing sensors in the folder, connecting two of the sensors in parallel, simultaneously sensing two edge regions of a copy with the two sensors, and transmitting an input signal to a paper jam-detection device, in response to a presence of copies detected by the receiving parts of the two sensors;
- and producing a counting pulse with the input signal.
A system for detecting a copy jam in a folder, comprising:
- a pair of parallel-connected sensors disposed in the folder to monitor a copy transport path of the folder for detecting a sequence of copies along the copy transport path, each of said sensors of said sensor pair being assigned to a respective one of two edge regions of the copies, and a paper jam-detection device connected to receive a combined signal from said sensors when each one of said sensors simultaneously indicates a presence of a copy in the copy transport path.
A folder with a copy transport path along which copies are transported in a continuous sequence, comprising:
- a pair of parallel-connected sensors disposed in the folder to monitor the copy transport path of the folder, said sensors, respectively, including a transmitting part and a receiving part, each of said sensors of said sensor pair being assigned to a respective one of two edge regions of the copies, and a paper jam-detection device connected to receive a combined signal from said sensors when each one of said sensors simultaneously indicates a presence of a copy in the copy transport path.
Dependencies are inferred from the claim text.