Abstract: A medium transport device includes a sensor unit, a timing data collection unit, and a sampling resolution changing unit. The sensor unit is provided in a transport path of a print recording medium to detect a transport timing of the print recording medium. A timing data collection unit receives an output from the sensor unit and samples the output at a sampling interval as timing data. A sampling resolution changing unit changes the sampling interval.

Abstract: A failure diagnosis system includes a first database, a second database, an observation-information acquiring unit, a determination-probability calculating unit and an occurrence-probability calculating unit. A first cause-and-effect network stored in the first database stochastically represents a relationship between failure-type candidates and first observation information, which have cause-and-effect relationships with the failure-type candidates. Each second cause-and-effect network stored in the second database stochastically represents relationships between second observation information and failure-cause candidates. The observation-information acquiring unit acquires the first and second observation information from a diagnosed system. The determination-probability calculating unit calculates a determination probability of each failure-type candidate based on the first observation information and the first cause-and-effect network.

Abstract: An image formation apparatus, which includes: a detector unit that detects a status of consumables; a prediction unit that predicts a run-out timing of the consumables on the basis of the status detected by the detector unit; a transmission unit that transmits the status detected by the detector unit to a management apparatus as consumables information; a reception unit that receives run-out timing information indicating a run-out timing predicted by the management apparatus on the basis of the consumables information transmitted by the transmission unit; and a notification unit that notifies the run-out timing of the consumables on the basis of the run-out timing information received by the reception unit if communication with the management apparatus is possible, or notifies the run-out timing of the consumables on the basis of the run-out timing predicted by the prediction unit if communication with the management apparatus is not possible.

Abstract: A failure prevention diagnosis support system includes: an acquiring portion that acquires internal information about an internal state of an image forming apparatus; a storage portion that stores one or a plurality of logistic regression models that define an estimate value of a regression coefficient through a logistic regression analysis using the internal information obtained when the image forming apparatus is in a failed state and in a normal state; and a controller that performs a control operation to select a logistic regression model from the one or the plurality of the logistic regression models stored in the storage portion in accordance with the image forming apparatus, and to calculate risk degrees as objective variables that are indicators of failure degrees in the image forming apparatus by assigning the internal information acquired by the acquiring portion or the value obtained from the internal information to the selected logistic regression model.

Abstract: A trouble sensing device has a first unit and a second unit. The first unit determines a total sum of driving current of two or more of a plurality of driving mechanisms that are turned on. The second unit judges whether trouble has arisen based on the total sum of the driving current.

Abstract: A fault diagnosis section activates a driving component alone, measures an operation state signal and a paper passage time, and stores feature values (Vm, ?v, Tqs, ?ts) extracted as a determination reference in a storage medium. A paper passage fault determination section determines whether or not a fault has arisen on the basis of the paper passage time when an apparatus is under normal operating conditions. A diagnosis target block determination section determines an order to operate a detail fault diagnosis when it is determined that there is a plurality of diagnosis target blocks.

Abstract: A failure diagnosis system includes a first database, a second database, an observation-information acquiring unit, a determination-probability calculating unit and an occurrence-probability calculating unit. A first cause-and-effect network stored in the first database stochastically represents a relationship between failure-type candidates and first observation information, which have cause-and-effect relationships with the failure-type candidates. Each second cause-and-effect network stored in the second database stochastically represents relationships between second observation information and failure-cause candidates. The observation-information acquiring unit acquires the first and second observation information from a diagnosed system. The determination-probability calculating unit calculates a determination probability of each failure-type candidate based on the first observation information and the first cause-and-effect network.

Abstract: A failure prevention diagnosis support system includes: an acquiring portion that acquires internal information about an internal state of an image forming apparatus; a storage portion that stores one or a plurality of logistic regression models that define an estimate value of a regression coefficient through a logistic regression analysis using the internal information obtained when the image forming apparatus is in a failed state and in a normal state; and a controller that performs a control operation to select a logistic regression model from the one or the plurality of the logistic regression models stored in the storage portion in accordance with the image forming apparatus, and to calculate risk degrees as objective variables that are indicators of failure degrees in the image forming apparatus by assigning the internal information acquired by the acquiring portion or the value obtained from the internal information to the selected logistic regression model.

Abstract: A failure analysis system includes an obtaining portion that obtains read-in image information that is image information obtained by reading an output image, a memory that stores fundamental image reduction information that is information in which an information amount of fundamental image information is reduced, the fundamental image information serving as a fundamental of the output image, a calculating portion that calculates a characteristic value of a projecting waveform by use of differential information between read-in image reduction information and the fundamental image reduction information, the read-in image reduction information being information in which the information amount of the read-in image information obtained by the obtaining portion is reduced, the fundamental image reduction information being stored in the memory; and a determining portion that determines a defect type group that is a group of defect types of elements included in the output image by use of a clustering process.

Abstract: A fault diagnosis section activates a driving component alone, measures an operation state signal and a paper passage time, and stores feature values (Vm, ?v, Tqs, ?ts) extracted as a determination reference in a storage medium. A paper passage fault determination section determines whether or not a fault has arisen on the basis of the paper passage time when an apparatus is under normal operating conditions. A diagnosis target block determination section determines an order to operate a detail fault diagnosis when it is determined that there is a plurality of diagnosis target blocks.

Abstract: A circuit board inspection device for inspecting the operation of a circuit board having a predetermined part or wire formed therein includes a supporting substrate disposed substantially in parallel with the parts mounting surface of the circuit board, and a signal change detection unit made of a coil or a capacitor disposed in a position of the supporting substrate corresponding to the part or wire of the circuit board, with the supporting substrate being disposed substantially in parallel with the circuit board.

Abstract: A failure diagnosis method diagnoses failure occurring in an image forming apparatus. The failure causes defect in an image output from the image forming apparatus. The failure diagnosis method includes acquiring operation state signals indicating operation states during the image forming apparatus operating in different operation conditions, respectively; and analyzing the acquired operation state signals based on a failure probability model, which is obtained by modeling a cause of the failure occurring in the image forming apparatus with using probabilities, to execute failure diagnosis with respect to each of constituent members constituting the image forming apparatus.

Abstract: An image defect inspecting apparatus of the present invention includes a template image producing section for producing a template image from reference image data, a corresponding image extracting section for extracting a predetermined image located at a position corresponding to a template image from digital data of a scanned image for inspection, data embedding sections for embedding desired same pattern data into the template image and the image extracted by the corresponding image extracting section, a normalized correlation value calculation processing unit for acquiring a normalized correlation coefficient from the template image and the extracted image, into which the pattern data is embedded, and a defect judging section for judging as to whether a defect is present by comparing the normalized correlation coefficient acquired by the normalized correlation value calculation processing unit with a predetermined threshold value so as to acquire a large/small relationship thereof.

Abstract: A fault diagnosis section activates a driving component alone, measures an operation state signal and a paper passage time, and stores feature values (Vm, ?v, Tqs, ?ts) extracted as a determination reference in a storage medium. A paper passage fault determination section determines whether or not a fault has arisen on the basis of the paper passage time when an apparatus is under normal operating conditions. A diagnosis target block determination section determines an order to operate a detail fault diagnosis when it is determined that there is a plurality of diagnosis target blocks.

Abstract: A fault diagnosis section activates a driving component alone, measures an operation state signal and a paper passage time, and stores feature values (Vm, ov, Tqs, ots) extracted as a determination reference in a storage medium. A paper passage fault determination section determines whether or not a fault has arisen on the basis of the paper passage time when an apparatus is under normal operating conditions. A diagnosis target block determination section determines an order to operate a detail fault diagnosis when it is determined that there is a plurality of diagnosis target blocks.

Abstract: A trouble sensing device has a first unit and a second unit. The first unit determines total sum of driving current of a plurality of driving mechanisms. The second unit judges whether trouble has arisen based on the total sum of the driving current.

Abstract: A fault diagnosis section activates a driving compornent alone, measures an operation state signal and a paper passage time, and stores feature values (Vm, ?v, Tqs, ?ts) extracted as a determination reference in a storage medium. A paper passage fault determination section determines whether or not a fault has arisen on the basis of the paper passage time when an apparatus is under normal operating conditions. A diagnosis target block determination section determines an order to operate a detail fault diagnosis when it is determined that there is a plurality of diagnosis target blocks.

Abstract: A transfer device for transferring an object to be transferred in a predetermined direction has a drive mechanism unit, a transfer direction displacement information acquiring unit, a skew direction displacement information acquiring unit, and a transfer processing unit. The drive mechanism unit also has roll parts which cause the object to be transferred to move in the direction with a rotational force. The transfer direction displacement information acquiring unit and the skew direction displacement information acquiring unit radiate a predetermined measuring wave toward the object, so that the units acquire the displacement information in each of the directions. Based on the displacement information, the transfer processing unit performs a predetermined processing.

Abstract: A failure diagnosis method diagnoses a failure occurring in a diagnosis target apparatus including a drive mechanism having a drive member that receives power supply to operate and a power transmission member that transmits drive force of the drive member to another member. The method includes automatically acquiring by a sensor an operation state signal indicating an operation state during the drive mechanism operating for a predetermined period; and analyzing the automatically acquired operation state signal based on a failure probability model, which is obtained by modeling a cause of failure occurring in the diagnosis target apparatus with using probabilities, to execute failure diagnosis with respect to each of constituent members of the drive mechanism.

Abstract: A failure diagnosis method diagnoses failure occurring in an image forming apparatus. The failure causes defect in an image output from the image forming apparatus. The failure diagnosis method includes acquiring operation state signals indicating operation states during the image forming apparatus operating in different operation conditions, respectively; and analyzing the acquired operation state signals based on a failure probability model, which is obtained by modeling a cause of the failure occurring in the image forming apparatus with using probabilities, to execute failure diagnosis with respect to each of constituent members constituting the image forming apparatus.