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US 6,192,141 B1Granted
Apparatus and method for automatically recognizing print media
AssigneeSamsung Electronics Co., Ltd.
InventorByung-sun Ahn
Life of this patent
Estimating the term…
Abstract
An apparatus and method that automatically recognizes a print medium. The device includes a print medium sensor for detecting the kind of print media, and outputting a detection signal; a detection signal processor for receiving and processing the detection signal output from the print medium sensor, and outputting a digital detection signal; and a microprocessor for receiving the digital detection signal processed and output from the detection signal processor, and determining the kind of print media according to the level of the digital detection signal applied.
Claims14
An apparatus, comprising:
- a print medium sensor automatically detecting the kind of print media, and outputting a detection signal according to an intensity of light reflecting from a surface of the print media, the intensity of light reflecting determined by the composition of particles of the surface of the print media;
- a detection signal processor receiving and processing the detection signal output from the print medium sensor, and outputting a digital detection signal;
- and
- a microprocessor receiving the digital detection signal processed and outputted from the detection signal processor, and determining the kind of print media according to the level of the digital detection signal applied, wherein the level includes one of the conditions of direction of print, print mode, and print speed, said microprocessor allowing said apparatus to accommodate automatic recognition of the print medium.
1 more element
A method, comprising the steps of:
- mounting the print medium when print image data are produced;
- feeding the print medium when it is mounted accommodating recording the print image data;
- automatically recognizing the kind of print medium when it is fed, according to an intensity of light reflecting from a surface of the print media, the intensity of light reflecting determined by the composition of particles of the surface of the print media, automatic recognition of the kind of print medium is performed by a print medium sensor having a light emitting device and a light receiving device, said light emitting device receiving a direct-current voltage, and emitting light;
- said light receiving device detecting the light emitted from the light emitting device and reflected on the surface of the print medium, and producing current according to the amount of light detected, the detected light from said light receiving device is processed in a detection signal processor outputting a digital detection signal, and determining the kind of print media according to the level of the digital detection signal applied, wherein the level includes one of the conditions of direction of print, print mode, and print speed;
- determining setting conditions of the print medium when the kind of print medium is recognized;
- setting print conditions in accordance with the print medium when the print medium conditions are set;
- and
- starting print when the print conditions are determined.
5 more elements
An apparatus, comprising:
- a light emitting device receiving a direct current voltage and emitting light, said light emitting device projects light onto any area of the surface of a print media at a predetermined incidence angle;
- a light receiving device detecting the light emitted from said light emitting device and reflected on the surface of the print medium, and producing current according to the amount of light detected, and the light projected on the surface of the print media is reflected to said light receiving device at said predetermined incidence angle;
- an operation amplifier accommodating amplifying a current signal produced from said light emitting device;
- an analog to digital (A/D) converter accommodating converting an analog current signal amplified by said operation amplifier into a digital signal, an output of said operational amplifier connected with an input of said analog to digital (A/D) converter;
- and
- a microprocessor receiving the digital signal processed and outputted from said analog to digital (A/D) converter, and determining the kind of print media according to the level of the digital detection signal applied, wherein the level includes one of the conditions of direction of print, print mode, and print speed, said microprocessor allowing said apparatus to accommodate automatic recognition of the kind of print medium, the automatic recognition determined by the intensity of light received by said light receiving device.
3 more elements
Dependencies are inferred from the claim text.