Method for detecting whether paper is remained by using means of time-detecting and image-similarity comparing and multi-function printer thereof
AssigneesCal-Comp Electronics & Communications Company Limited, Kinpo Electronics, Inc.
InventorHung-Chieh Chang
Life of this patent
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Abstract
A method for detecting whether a paper is remained and a multi-function printer (MFP) thereof are provided. The method includes executing a detection procedure when the MFP accomplishes image capturing and outputting of the paper; recording a time of starting executing the detection procedure; calculating an executed time of the detection procedure; and determining whether to activate an alarm according to the executed time of the detection procedure and a similarity comparison result obtained by executing a scan procedure, so as to remind a user whether the paper is remained in the MFP.
Claims12
A method for detecting whether a paper is remained, adaptable to a multi-function printer (MFP), the method being performed by a processing unit of the MFP, and the method comprising:
- executing a detection procedure, when the MFP accomplishes image capturing and outputting of the paper;
- recording a time of starting executing detection procedure;
- calculating an executed time of the detection procedure;
- and
- determining whether to activate an alarm according to the executed time of the detection procedure and an image similarity comparison result obtained by executing a scan procedure, so as to remind a user whether the paper is remained in the MFP,
- wherein the step of determining whether to activate the alarm according to the executed time of the detection procedure and the image similarity comparison result obtained by executing the scan procedure comprises:
- determining whether the executed time of the detection procedure is shorter than a preset time;
- further executing the scan procedure to obtain a comparison image when determining that the executed time of the detection procedure is shorter than the preset time, wherein the comparison image is corresponding to at least a portion of an previously captured image of the paper;
- and
- comparing the comparison image with the previously captured image of the paper to obtain the image similarity comparison result.
A multi-function printer (MFP), comprising:
- a scan module, for scanning a paper;
- and
- a control module, coupled to the scan module, for controlling operation of the scan module, and detecting whether the paper is remained in the MFP according to an executed time of a detection procedure and an image similarity comparison result obtained by executing a scan procedure, when the MFP accomplishes image capturing and outputting of the paper, so as to determine whether to activate an alarm to remind a user,
- wherein the control module comprises:
- a processing unit, coupled to the scan module, for controlling the operation of the scan module, and for executing the detection procedure and the scan procedure when the MFP accomplishes the image capturing and the outputting of the paper;
- a storage unit, coupled to the processing unit, for temporarily storing a previously captured image of the paper;
- and
- an alarm unit, coupled to the processing unit, and controlled by the processing unit to determine whether to activate the alarm,
- wherein when the processing unit executes the detection procedure, the processing unit records a time of starting executing the detection procedure, calculates the executed time of the detection procedure, and determines whether to control the alarm unit to activate the alarm according to the executed time of the detection procedure and the image similarity comparison result obtained by executing the scan procedure,
- wherein when the processing unit determines the executed time of the detection procedure to be shorter than a preset time, the processing unit further executes the scan procedure to obtain a comparison image and compares the comparison image with the previously captured image of the paper to obtain the image similarity comparison result, wherein the comparison image is corresponding to at least a portion of the previously captured image of the paper.
Dependencies are inferred from the claim text.