Patent EP0184186A2 successfully refreshed from Google Patents.
Patent EP0516420A2 successfully refreshed from Google Patents.
EP0516420A2
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Ink jet recording method and apparatus
Assignee: Canon Inc
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Filing: 1992-05-28
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Granted: —
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Expires: 2012-05-28
Abstract
Abstract A plurality of thin image data are generated based on desired image data. A single region on a recording medium is scanned a plurality of number of times on the basis of the plurality of thin image data, thereby recording the thin images a plurality of number of times. The scan interval in this case is set to be an interval equal to or longer than a required minimum interval, which does not cause deterioration of image quality due to blurring. Furthermore, the interval is properly changed according to the print duty, environmental condition, or the like. <IMAGE>
Inventors
- 👤 Atsushi C/O Canon Kabushiki Kaisha Arai
- 👤 Hiromitsu C/O Canon Kabushiki Kaisha Hirabayashi
- 👤 Shigeyasu C/O Canon Kabushiki Kaisha Nagoshi
- 👤 Yuji C/O Canon Kabushiki Kaisha Akiyama
- 👤 Hitoshi C/O Canon Kabushiki Kaisha Sugimoto
- 👤 Miyuki C/O Canon Kabushiki Kaisha Matsubara
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 15:27
CPC Classifications
G; G06; G06K; G06K15/00; G06K15/02; G06K15/10; G06K15/102; G06K15/105; G06K15/107; B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/21; B41J2/2132
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
94 words
An ink jet recording method for recording a character, a figure, or the like by ejecting an ink droplet from recording means comprising a plurality of ejection elements to a recording medium, wherein a desired image is obtained by recording thin images a plurality of number of times on a single region of said recording medium, and a recording interval upon execution of the plurality of number of times of recording operations is controlled to be set to be not less than a required minimum interval, which does not cause deterioration of image quality.
Claim 2
Dependent Claim
34 words
A method according to claim 1, wherein the thin images are recorded the plurality of number of times by moving said recording means relative to said recording medium a plurality of number of times.
Claim 3
Dependent Claim
24 words
A method according to claim 2, wherein an interval of the relative movement is set to be not less than the required minimum interval.
Claim 4
Independent Claim
30 words
A method according to any one of claims 1 to 3, wherein said recording means ejects the ink by causing a change in state in the ink by heat energy.
Claim 5
Dependent Claim
108 words
An ink jet recording apparatus comprising: recording means comprising a plurality of ejection elements for ejecting an ink onto a recording medium; data generation means for generating a plurality of thin image data from desired image data; control means for controlling said recording means to record the thin images a plurality of number of times on a single region of said recording medium on the basis of the plurality of thin image data output from said data generation means; and setting means for setting a recording interval upon execution of the plurality of number of times of recording operations to be not less than a required minimum interval.
Claim 6
Dependent Claim
41 words
An apparatus according to claim 5, further comprising moving means for moving said recording means relative to said recording medium, and wherein the plurality of thin images are recorded on said recording medium by performing relative movement by said moving means.
Claim 7
Dependent Claim
26 words
An apparatus according to claim 6, wherein said setting means sets an interval of the relative movement to be not less than the required minimum interval.
Claim 8
Independent Claim
30 words
An apparatus according to any one of claims 5 to 7, wherein said recording means ejects the ink by causing a change in state in the ink by heat energy.
Claim 9
Dependent Claim
80 words
An ink jet recording method for recording a character, a figure, or the like by ejecting an ink droplet from recording means comprising a plurality of ejection elements to a recording medium, wherein a desired image is obtained by recording thin images a plurality of number of times on a single region of said recording medium, and a recording interval upon execution of the plurality of number of times of recording operations is properly controlled according to a predetermined condition.
Claim 10
Dependent Claim
33 words
A method according to claim 9, wherein the recording interval upon execution of the plurality of number of times of recording operations is changed according to a print duty of said recording means.
Claim 11
Dependent Claim
30 words
A method according to claim 9 or 10, wherein an environmental condition near a recording unit is detected, and the recording interval is changed according to the detected environmental condition.
Claim 12
Dependent Claim
27 words
A method according to claim 11, wherein at least one of a temperature and a relative humidity near the recording unit is detected as the environmental condition.
Claim 13
Independent Claim
39 words
A method according to any one of claims 9 to 12, wherein the thin images are recorded the plurality of number of times by moving said recording means relative to said recording medium a plurality of number of times.
Claim 14
Dependent Claim
24 words
A method according to claim 13, wherein an interval of the relative movement is set to be not less than the required minimum interval.
Claim 15
Independent Claim
30 words
A method according to any one of claims 9 to 14, wherein said recording means ejects the ink by causing a change in state in the ink by heat energy.
Claim 16
Dependent Claim
56 words
An ink jet recording method for performing color image recording using a plurality of recording means for ejecting different color inks, wherein a print ink density of a mixed color print portion is predicted on the basis of print duties of said color recording means, and a recording interval is changed according to the predicted value.
Claim 17
Dependent Claim
33 words
A method according to claim 16, wherein thin images are recorded a plurality of number of times by moving said recording means relative to a recording medium a plurality of number of times.
Claim 18
Dependent Claim
24 words
A method according to claim 17, wherein an interval of the relative movement is set to be not less than a required minimum interval.
Claim 19
Independent Claim
32 words
A method according to any one of claims 16 to 18, wherein each of said recording means ejects the ink by causing a change in state in the ink by heat energy.
Claim 20
Dependent Claim
99 words
An ink jet recording apparatus comprising: recording means comprising a plurality of ejection elements for ejecting an ink onto a recording medium; data generation means for generating a plurality of thin image data from desired image data; means for causing said recording means to record the thin images a plurality of number of times on a single region of said recording medium on the basis of the plurality of thin image data output from said data generation means; and control means for properly controlling a scan interval upon execution of the plurality of number of times of recording operations.
Claim 21
Dependent Claim
36 words
An apparatus according to claim 20, wherein said control means comprises detection means for detecting a print duty of said recording means, and changes the scan interval according to a detection signal from said detection means.
Claim 22
Dependent Claim
67 words
An apparatus according to claim 21, wherein when the detection signal indicates that the print duty is higher than a predetermined value, said control means sets the scan interval to be a first interval, and when the detection signal indicates that the print duty is lower than the predetermined value, said control means sets the scan interval to be a second interval shorter than the first interval.
Claim 23
Dependent Claim
40 words
An apparatus according to claim 20, wherein said control means comprises detection means for detecting an environmental condition near a recording position of said recording means, and changes the scan interval according to a detection signal from said detection means.
Claim 24
Dependent Claim
25 words
An apparatus according to claim 23, wherein said detection means detects at least one of a temperature and a relative humidity near the recording position.
Claim 25
Independent Claim
46 words
An apparatus according to any one of claims 20 to 24, further comprising moving means for moving said recording means relative to said recording medium, and wherein the plurality of thin images are recorded on said recording medium by performing relative movement by said moving means.
Claim 26
Dependent Claim
26 words
An apparatus according to claim 25, wherein said control means sets an interval of the relative movement to be not less than a required minimum interval.
Claim 27
Independent Claim
30 words
An apparatus according to any one of claims 20 to 26, wherein said recording means ejects the ink by causing a change in state in the ink by heat energy.
Claim 28
Dependent Claim
121 words
An ink jet recording apparatus comprising: a plurality of recording means comprising a plurality of ejection elements for ejecting ink droplets in different colors to a recording medium; data generation means for generating a plurality of thin image data in units of colors from desired image data; means for causing said recording means to record the thin images a plurality of number of times on a single region of said recording medium on the basis of the plurality of thin image data output from said data generation means; and control means for properly controlling a recording interval upon execution of the plurality of number of times of recording operations on the basis of print duties of said plurality of recording means.
Claim 29
Dependent Claim
41 words
An apparatus according to claim 28, further comprising moving means for moving said recording means relative to said recording medium, and wherein the plurality of thin images are recorded on said recording medium by performing relative movement by said moving means.
Claim 30
Dependent Claim
26 words
An apparatus according to claim 29, wherein said control means sets an interval of the relative movement to be not less than a required minimum interval.
Claim 31
Independent Claim
30 words
An apparatus according to any one of claims 28 to 30, wherein said recording means ejects the ink by causing a change in state in the ink by heat energy.
Claim 32
Dependent Claim
37 words
Apparatus for printing by directing ink onto a medium, characterised by applying a first layer of ink over an area of the medium, waiting a predetermined period, and applying a second layer of ink to said area.
References Cited (Backward Citations)
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