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US 6,629,796 B2Granted
Printer
AssigneeSeiko Epson Corporation
InventorsHideki Kawakami, Satoshi Iwaya, Naoki Kobayashi
Life of this patent
Estimating the term…
Abstract
A printer including a cover state detector and a paper detector. The cover state detector detects whether a cover is opened with respect to a casing of a printer, whereas the paper detector detects whether paper is present within the casing. When the cover is opened, a detection result of the cover state detector is transmitted to a print controller prior to the time when a detection result of the paper detector is transmitted to the print controller.
Claims22
A printer comprising:
- a holder, which accommodates paper therein;
- a cover, which is movable between a first position for covering the paper accommodated in the holder and a second position for opening the holder such that an operator is able to access the accommodated paper;
- a print mechanism, which transports the paper and prints information thereon;
- a print controller, which controls the print mechanism to perform printing process;
- a cover state detector, which outputs a first detection signal when the cover is moved from the first position to the second position;
- a paper detector, which outputs a second detection signal when the paper has run out;
- and
- a delay generator, which delays the transmission of the second detection signal to the print controller relative to the first detection signal such that the print controller receives the first detection signal prior to the second detection signal.
5 more elements
A printer comprising:
- a holder, which accommodates paper therein;
- a cover, which is movable between a first position for covering the paper accommodated in the holder and a second position for opening the holder such that an operator is able to access the accommodated paper;
- a print mechanism, which transports the paper and prints information thereon;
- a print controller, which controls the print mechanism to perform printing process;
- a cover state detector, which outputs a first detection signal when the cover is moved from the first position to the second position, the cover state detector including a first lever, which moves in cooperation with the movement of the cover, and a first detector that detects the movement of the first lever;
- a paper detector, which outputs a second detection signal when the paper has run out, the paper detector including a second lever, which moves in cooperation with the movement of the cover and moves when the paper accommodated in the holder runs out, and a second detector that detects the movement of the second lever;
- and
- a support member, which supports the cover state detector and the paper detector in a configuration wherein the movement of the first lever is detected by the first detector prior to when the movement of the second lever is detected by the second detector.
5 more elements
A printer comprising:
- a holder, which accommodates paper therein;
- a cover, which is movable between a first position for covering the paper accommodated in the holder and a second position for opening the holder such that an operator is able to access the accommodated paper;
- a print mechanism, which transports the paper and prints information thereon;
- a print controller, which controls the print mechanism to perform printing;
- a cover state detector, which outputs a first detection signal when the cover is moved from the first position to the second position;
- a paper detector, which outputs a second detection signal when the paper has run out;
- and
- a delay circuit that delays the transmission of the second detection signal to the print controller relative to the first detection signal such that the print controller receives the first detection signal prior to the second detection signal.
5 more elements
A printer comprising:
- a holder, which accommodates paper therein;
- a cover, which is movable between a first position for covering the paper accommodated in the holder and a second position for opening the holder such that an operator is able to access the accommodated paper;
- a print mechanism, which transports the paper and prints information thereon;
- a cover state detector, which outputs a first detection signal when the cover is moved from the first position to the second position;
- a paper detector, which outputs a second detection signal when the paper has run out;
- and
- a controller for controlling the print mechanism to perform printing process,
- wherein the controller is configured to execute a first interruption process in preference to the printing process, when receiving the first detection signal within a predetermined time period, and to execute a second interruption process that is different from the first interruption process, when receiving no first detection signal within the predetermined time period.
5 more elements
An error process method, used for the printer provided with a holder, which accommodates paper therein;
- a cover, which is movable between a first position for covering the paper accommodated in the holder and a second position for opening the holder such that an operator is able to access the accommodated paper;
- a print mechanism, which transports the paper and prints information thereon;
- a cover state detector, which outputs a first detection signal when the cover is moved from the first position to the second position and;
- a paper detector, which outputs a second detection signal when the paper has run out;
- the error process method comprising the steps of:
- counting a predetermined time period, when receiving the second detection signal;
- executing a first interruption process prior to a printing process, when receiving the first detection signal within the predetermined time period;
- and
- executing a second interruption process, which is different from the first interruption process, when receiving no first detection signal within the predetermined time period.
6 more elements
Dependencies are inferred from the claim text.