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US 2016/0259285 A1Published application
Determination apparatus for determining type of recording medium
AssigneeCanon Kabushiki Kaisha
InventorsTetsuya Yamamoto, Tsutomu Ishida
Life of this patent
Estimating the term…
Abstract
A transmission unit transmits an ultrasonic wave by a drive signal being supplied to two terminals. A reception unit receives the ultrasonic wave transmitted from the transmission unit and to output a reception signal from two terminals in accordance with the received ultrasonic wave. A change unit changes a determination scheme for determining a type of a recording medium, based on information indicating a relation between a polar character of the transmission unit and a polar character of the reception unit, the information having been acquired from the reception signal.
Claims25
-16. (canceled)
A determination apparatus comprising:
- a first control unit having two terminals having a different polar character and configured to output a drive signal from the two terminals;
- a transmission unit having two terminals having a different polar character and configured to transmit an ultrasonic wave by input the drive signal to the two terminals;
- a reception unit having two terminals having a different polar character and configured to receive the ultrasonic wave transmitted from the transmission unit and to output a reception signal from the two terminals in accordance with the received ultrasonic wave;
- a second control unit having two terminals having a different polar character and the two terminals being input the reception signal output from the reception unit;
- a judgement unit configured to judge, based on the reception signal input to the second control unit, whether or not a predetermined state occurs in which the two terminals of the first control unit are connected to the two terminals of the transmission unit so that each of the polar characters matches and the two terminals of the second control unit are connected to the two terminals of the reception unit so that each of the polar characters mismatches, or the two terminals of the first control unit are connected to the two terminals of the transmission unit so that each of the polar characters mismatches and the two terminals of the second control unit are connected to the two terminals of the reception unit so that each of the polar characters matches;
- and
- a reverse unit configured to reverse a waveform of the reception signal in a case that the judgement unit judges that the predetermined state has occurred;
- and
- a determination unit configured to determine a type of a recording medium based on an amplitude of the reception signal of which the waveform is reversed by the reverse unit, the reception signal being acquired during the recording medium conveyed between the transmission unit and the reception unit.
6 more elements
A determination apparatus comprising:
- a first control unit having two terminals having a different polar character and configured to output a drive signal from the two terminals;
- a transmission unit having two terminals having a different polar character and configured to transmit an ultrasonic wave by input the drive signal to the two terminals;
- a reception unit having two terminals having a different polar character and configured to receive the ultrasonic wave transmitted from the transmission unit and to output a reception signal from the two terminals in accordance with the received ultrasonic wave;
- a second control unit having two terminals having a different polar character and the two terminals being input the reception signal output from the reception unit;
- a storage unit configured to store a plurality of information to be used for determination of a type of a recording medium;
- a judgement unit configured to judge, based on the reception signal input to the second control unit, whether a first state or a second state occurs, the first state being a state in which the two terminals of the first control unit are connected to the two terminals of the transmission unit so that each of the polar characters matches and the two terminals of the second control unit are connected to the two terminals of the reception unit so that each of the polar characters matches, or the two terminals of the first control unit are connected to the two terminals of the transmission unit so that each of the polar characters mismatches and the two terminals of the second control unit are connected to the two terminals of the reception unit so that each of the polar characters mismatches, and the second state being a state in which the two terminals of the first control unit are connected to the two terminals of the transmission unit so that each of the polar characters matches and the two terminals of the second control unit are connected to the two terminals of the reception unit so that each of the polar characters mismatches, or the two terminals of the first control unit are connected to the two terminals of the transmission unit so that each of the polar characters mismatches and the two terminals of the second control unit are connected to the two terminals of the reception unit so that each of the polar characters matches;
- a selection unit configured to select a first information from the plurality of information stored in the storage unit in a case that the judgement unit judges that the first state has occurred and select a second information from the plurality of information stored in the storage unit in a case that the judgement unit judges that the second state has occurred;
- and
- a determination unit configured to determine a type of a recording medium based on information selected by the selection unit and an amplitude of the reception signal acquired during the recording medium conveyed between the transmission unit and the reception unit.
6 more elements
An image forming apparatus comprising:
- a image formation unit configured to form an image on a recording medium;
- a first control unit having two terminals having a different polar character and configured to output a drive signal from the two terminals;
- a transmission unit having two terminals having a different polar character and configured to transmit an ultrasonic wave by input the drive signal to the two terminals;
- a reception unit having two terminals having a different polar character and configured to receive the ultrasonic wave transmitted from the transmission unit and to output a reception signal from the two terminals in accordance with the received ultrasonic wave;
- a second control unit having two terminals having a different polar character and the two terminals being input the reception signal output from the reception unit;
- a judgement unit configured to judge, based on the reception signal input to the second control unit, whether or not a predetermined state occurs in which the two terminals of the first control unit are connected to the two terminals of the transmission unit so that each of the polar characters matches and the two terminals of the second control unit are connected to the two terminals of the reception unit so that each of the polar characters mismatches, or the two terminals of the first control unit are connected to the two terminals of the transmission unit so that each of the polar characters mismatches and the two terminals of the second control unit are connected to the two terminals of the reception unit so that each of the polar characters matches;
- and
- a reverse unit configured to reverse a waveform of the reception signal in a case that the judgement unit judges that the predetermined state has occurred;
- and
- a setting unit configured to set an image forming condition of the image formation unit based on an amplitude of the reception signal of which the waveform is reversed by the reverse unit, the reception signal being acquired during the recording medium conveyed between the transmission unit and the reception unit.
7 more elements
An image forming apparatus comprising:
- a image formation unit configured to form an image on a recording medium;
- a first control unit having two terminals having a different polar character and configured to output a drive signal from the two terminals;
- a transmission unit having two terminals having a different polar character and configured to transmit an ultrasonic wave by input the drive signal to the two terminals;
- a reception unit having two terminals having a different polar character and configured to receive the ultrasonic wave transmitted from the transmission unit and to output a reception signal from the two terminals in accordance with the received ultrasonic wave;
- a second control unit having two terminals having a different polar character and the two terminals being input the reception signal output from the reception unit;
- a storage unit configured to store a plurality of information to be used for determination of a type of a recording medium;
- a judgement unit configured to judge, based on the reception signal input to the second control unit, whether a first state or a second state occurs, the first state being a state in which the two terminals of the first control unit are connected to the two terminals of the transmission unit so that each of the polar characters matches and the two terminals of the second control unit are connected to the two terminals of the reception unit so that each of the polar characters matches, or the two terminals of the first control unit are connected to the two terminals of the transmission unit so that each of the polar characters mismatches and the two terminals of the second control unit are connected to the two terminals of the reception unit so that each of the polar characters mismatches, and the second state being a state in which the two terminals of the first control unit are connected to the two terminals of the transmission unit so that each of the polar characters matches and the two terminals of the second control unit are connected to the two terminals of the reception unit so that each of the polar characters mismatches, or the two terminals of the first control unit are connected to the two terminals of the transmission unit so that each of the polar characters mismatches and the two terminals of the second control unit are connected to the two terminals of the reception unit so that each of the polar characters matches;
- a selection unit configured to select a first information from the plurality of information stored in the storage unit in a case that the judgement unit judges that the first state has occurred and select a second information from the plurality of information stored in the storage unit in a case that the judgement unit judges that the second state has occurred;
- and
- a setting unit configured to set an image forming condition of the image formation unit based on information selected by the selection unit and an amplitude of the reception signal being acquired during the recording medium conveyed between the transmission unit and the reception unit.
7 more elements
Dependencies are inferred from the claim text.