System and method for diagnosing a printing device based on a correlation coefficient between print volume and error rate
AssigneeKYOCERA Document Solutions Inc.
InventorOLEG Y. ZAKHAROV
Life of this patent
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Abstract
A method to determine an operating status of an image forming device comprises: monitoring a plurality of operating parameters of the image forming device during a first time interval; calculating a correlation coefficient during a second time interval between at least two of the plurality of operating parameters; identifying the image forming device as an abnormal operating status when the correlation coefficient calculated during the second time interval is a positive correlation coefficient above a predetermined level associated with a model of the image forming device; and determining a maintenance action for the image forming device based on the abnormal operating status.
Claims20
A method to determine an operating status of an image forming device comprising:
- monitoring a plurality of operating parameters of the image forming device during a first time interval;
- monitoring the plurality of operating parameters of the image forming device during a second time interval, wherein the second time interval comprising a plurality of data sampling intervals;
- calculating a correlation coefficient between at least two of the plurality of operating parameters monitored during the second time interval, wherein the at least two of the operating parameters are a total number of pages printed and a total number of errors recorded by a sensor of the image forming device during the plurality of data sampling intervals of the second time interval;
- identifying the image forming device as an abnormal operating status when the correlation coefficient calculated during the second time interval is a positive correlation coefficient above a threshold level associated with a model of the image forming device;
- and
- determining a maintenance action for the image forming device based on the abnormal operating status.
(canceled)
A method to determine an operating status of at least one image forming device comprising:
- monitoring a plurality of operating parameters of the at least one image forming device during a first time interval, wherein monitoring the plurality of operating parameters of at least one image forming device comprises:
- determining a total number of pages printed by the at least one image forming device during the first time interval;
- and
- determining a total number of errors recorded by the at least one image forming device during the first time interval;
- calculating a correlation coefficient of the at least one image forming device during a second time interval based on a total number of pages printed and a total number of errors recorded for the at least one image forming device during a plurality of data sampling intervals of the second time interval;
- identifying the at least one image forming device as an abnormal operating status when the correlation coefficient is a positive correlation coefficient above a threshold level associated with a model of the at least one image forming device;
- and
- determining a maintenance action for the desired image forming device based on the abnormal status.
A system for indicating normal and abnormal operating status for an image forming device comprising:
- a processor,
- a memory coupled to the processor, the memory storing program instructions that when executed by the processor, causes the processor to:
- monitor a plurality of operating parameters of the image forming device during a first time interval by determining a total number of pages printed and a total number of errors recorded during the first time interval;
- calculate a correlation coefficient during a second time interval based on a total number of pages printed and a total number of errors recorded by a sensor of the image forming device during a plurality of data sampling intervals of the second time interval;
- identify the image forming device as an abnormal operating status when the correlation coefficient calculated during the second time interval is a positive correlation coefficient above a threshold level associated with a model of the image forming device;
- and
- determine a maintenance action for the image forming device based on the abnormal operating status.
Dependencies are inferred from the claim text.