US5220342A
Expired / Lapsed
US
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Ink jet recording method
Assignee: Canon Inc
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Filing: 1990-11-06
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Granted: 1993-06-15
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Expires: 2010-11-06
Abstract
Abstract An ink jet recording method which performs color recording and monochromatic recording while moving relatively a head equipped with nozzles corresponding respectively to 4 colors of cyan, magenta, yellow and black and a recording medium in the main scanning direction and the sub-scanning direction. The main scanning speed during the monochromatic recording is made faster than during the color recording, and the monochromatic recording is performed by recording dots of black and black dots formed by mixing of the three colors of cyan, magenta and yellow alternately on the recording medium.
Inventors
- 👤 Jiro Moriyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:51
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/21; B41J2/2107; B41J2/2103
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
194 words
An ink jet recording method which selectively performs color recording and monochromatic recording, the method comprising the steps of: providing a recording apparatus having at least one recording head with ink discharge openings for discharging ink onto a recording medium, wherein said ink discharge openings correspond respectively to black ink and a plurality of non-black inks of colors that become black when mixed, and means for moving said recording head relative to the recording medium in a main scanning direction at one of a first speed and a second speed faster than said first speed and in a sub-scanning direction, selectively performing said monochromatic recording and said color recording, wherein said monochromatic recording is performed by alternately recording on the recording medium black dots formed by said black ink and black dots formed by mixing said plurality of non-black inks and wherein said color recording is performed by selectively discharging said black and non-black inks to mix and form dots of predetermined colors on the recording medium, and moving said recording head in the main scanning direction at said first speed during said color recording and at said second speed during said monochromatic recording.
Claim 2
Dependent Claim
194 words
An ink jet recording method which selectively performs color recording and monochromatic recording, the method comprising the steps of: providing a recording apparatus having at least one recording head with ink discharge openings for discharging ink onto a recording medium, wherein said ink discharge openings correspond respectively to black ink and a plurality of non-black inks of colors that become black when mixed, and means for moving said recording head relative to the recording medium in a main scanning direction at one of a first speed and a second speed faster than said first speed and in a sub-scanning direction, selectively performing said monochromatic recording and said color recording, wherein said monochromatic recording is performed by alternately recording on the recording medium black dots formed by said black ink and black dots formed by mixing said plurality of non-black inks and wherein said color recording is performed by selectively discharging said black and non-black inks to mix and form dots of predetermined colors on the recording medium, and moving said recording head in the main scanning direction at said first speed during said color recording and at said second speed during said monochromatic recording.
Claim 3
Dependent Claim
47 words
An ink jet recording method according to claim 1, wherein the dots of black ink and the black dots formed by mixing the plurality of non-black inks may be recorded at alternate positions of a dot matrix, in the main scanning direction and in the sub-scanning direction.
Claim 4
Dependent Claim
32 words
An ink jet recording method according to claim 1, wherein the respective amounts discharged for forming the black dots by mixing the plurality of non-black inks, are less than during color recording.
Claim 5
Dependent Claim
39 words
An ink jet recording method according to claim 1, wherein the respective amounts discharged for forming the black dots by mixing the plurality of non-black inks are less than the amount discharged for forming the dots of black ink.
Claim 6
Dependent Claim
31 words
An ink jet recording method according to claim 4, wherein the black dot formed by mixing the plurality of non-black inks and the dot of black ink are the same size.
Claim 7
Dependent Claim
18 words
An ink jet recording method according to claim 1, wherein said non-black inks are cyan, magenta and yellow.
Claim 8
Dependent Claim
177 words
An ink jet recording method which selectively performs color recording and monochromatic recording, the method comprising the steps of: providing a recording apparatus having a recording head with ink discharge openings for discharging ink onto a recording medium, wherein said ink discharge openings correspond respectively to black ink and a plurality of non-black inks of colors that become black when mixed, and means for moving said recording head relative to the recording medium at one of a first speed and a second speed faster than said first speed, selectively performing said monochromatic recording and said color recording, wherein said monochromatic recording is performed by alternately recording on the recording medium black dots formed by said black ink and black dots formed by mixing said plurality of non-black inks and wherein said color recording is performed by selectively discharging said black and non-black inks to mix and form dots of predetermined colors on the recording medium, and moving said recording head at said first speed during said color recording and at said second speed during said monochromatic recording.
Claim 9
Dependent Claim
177 words
An ink jet recording method which selectively performs color recording and monochromatic recording, the method comprising the steps of: providing a recording apparatus having a recording head with ink discharge openings for discharging ink onto a recording medium, wherein said ink discharge openings correspond respectively to black ink and a plurality of non-black inks of colors that become black when mixed, and means for moving said recording head relative to the recording medium at one of a first speed and a second speed faster than said first speed, selectively performing said monochromatic recording and said color recording, wherein said monochromatic recording is performed by alternately recording on the recording medium black dots formed by said black ink and black dots formed by mixing said plurality of non-black inks and wherein said color recording is performed by selectively discharging said black and non-black inks to mix and form dots of predetermined colors on the recording medium, and moving said recording head at said first speed during said color recording and at said second speed during said monochromatic recording.
Claim 10
Dependent Claim
33 words
An ink jet recording method according to claim 7, wherein the respective amounts discharged for forming the black dots by mixing the plurality of non-black colors inks are less than during color recording.
Claim 11
Dependent Claim
40 words
An ink jet recording method according to claim 7, wherein the respective amounts discharged for forming the black dots by mixing the plurality of non-black colors inks are less than the amount discharged for forming the dots of black ink.
Claim 12
Dependent Claim
31 words
An ink jet recording method according to claim 9, wherein the black dots formed by mixing the plurality of non-black inks and the dots of black ink are the same size.
Claim 13
Dependent Claim
18 words
An ink jet recording method according to claim 7, wherein said non-black inks are cyan, magenta and yellow.
Claim 14
Dependent Claim
183 words
An ink jet recording apparatus for performing color recording and monochromatic recording, the apparatus comprising: at least one recording head having ink discharge openings for discharging ink onto a recording medium, wherein said ink discharge openings correspond respectively to black ink and a plurality of non-black inks of colors that become black when mixed and wherein said recording head performs monochromatic recording by alternately recording on the recording medium black dots formed by said black ink and black dots formed by mixing said plurality of non-black inks and performs color recording by selectively discharging said black and non-black inks to mix and form dots of predetermined colors on the recording medium; moving means for moving said recording head relative to the recording medium in a main scanning direction at one of a first speed and a second speed faster than said first speed and in a sub-scanning direction; and control means for controlling said moving means to move said recording head relative to the recording medium at said first speed during said color recording and at said second speed during said monochromatic recording.
Claim 15
Dependent Claim
183 words
An ink jet recording apparatus for performing color recording and monochromatic recording, the apparatus comprising: at least one recording head having ink discharge openings for discharging ink onto a recording medium, wherein said ink discharge openings correspond respectively to black ink and a plurality of non-black inks of colors that become black when mixed and wherein said recording head performs monochromatic recording by alternately recording on the recording medium black dots formed by said black ink and black dots formed by mixing said plurality of non-black inks and performs color recording by selectively discharging said black and non-black inks to mix and form dots of predetermined colors on the recording medium; moving means for moving said recording head relative to the recording medium in a main scanning direction at one of a first speed and a second speed faster than said first speed and in a sub-scanning direction; and control means for controlling said moving means to move said recording head relative to the recording medium at said first speed during said color recording and at said second speed during said monochromatic recording.
Claim 16
Dependent Claim
48 words
An ink jet recording apparatus according to claim 12, wherein the dots of black ink and the black ink dots formed by mixing the plurality of non-black inks may be recorded at alternate positions of a dot matrix, in the main scanning direction and in the sub-scanning direction.
Claim 17
Dependent Claim
32 words
An ink jet recording apparatus according to claim 12, wherein the respective amounts discharged for forming the black dots by mixing the plurality of non-black inks are less than during color recording.
Claim 18
Dependent Claim
39 words
An ink jet recording apparatus according to claim 12, wherein the respective amounts discharged for forming the black dots by mixing the plurality of non-black inks are less than the amount discharged for forming the dots of black ink.
Claim 19
Dependent Claim
31 words
An ink jet recording apparatus according to claim 15, wherein the black dots formed by mixing the plurality of non-black inks and the dots of black ink are the same size.
Claim 20
Dependent Claim
20 words
An ink jet recording apparatus according to claim 12, wherein plural ink discharge openings are integrally provided on said head.
Claim 21
Dependent Claim
21 words
An ink jet recording apparatus according to claim 17, wherein one ink discharge opening is provided for each color of ink.
Claim 22
Dependent Claim
21 words
An ink jet recording apparatus according to claim 16, wherein plural ink discharge openings are provided for each color of ink.
Claim 23
Dependent Claim
16 words
An ink jet recording apparatus according to claim 12, wherein a plurality of heads are provided.
Claim 24
Dependent Claim
24 words
An ink jet recording apparatus according to claim 20, wherein one ink discharge opening is provided for each color of ink on each head.
Claim 25
Dependent Claim
24 words
An ink jet recording apparatus according to claim 20, wherein plural ink discharge openings are provided for each color of ink on each head.
Claim 26
Dependent Claim
21 words
An ink jet recording apparatus to claim 12, wherein said head is removably mounted on a main body of the apparatus.
Claim 27
Dependent Claim
18 words
An ink jet recording apparatus according to claim 12, wherein said non-black inks are cyan, magenta and yellow.
Claim 28
Dependent Claim
171 words
An ink jet recording apparatus which performs color recording and monochromatic recording, the apparatus comprising: a recording head having ink discharge openings for discharging ink onto a recording medium, wherein said ink discharge openings correspond respectively to black ink and a plurality of non-black inks of colors that become black when mixed and wherein said recording head performs monochromatic recording by alternately recording on the recording medium black dots formed by said black ink and black dots formed by mixing said plurality of non-black inks and performs color recording by selectively discharging said black and non-black inks to mix and form dots of predetermined colors on the recording medium; moving means for moving said recording head relative to the recording medium at one of a first speed and a second speed faster than said first speed; and control means for controlling said moving means to move said recording head relative to the recording medium at said first speed during said color recording and at said second speed during said monochromatic recording.
Claim 29
Dependent Claim
171 words
An ink jet recording apparatus which performs color recording and monochromatic recording, the apparatus comprising: a recording head having ink discharge openings for discharging ink onto a recording medium, wherein said ink discharge openings correspond respectively to black ink and a plurality of non-black inks of colors that become black when mixed and wherein said recording head performs monochromatic recording by alternately recording on the recording medium black dots formed by said black ink and black dots formed by mixing said plurality of non-black inks and performs color recording by selectively discharging said black and non-black inks to mix and form dots of predetermined colors on the recording medium; moving means for moving said recording head relative to the recording medium at one of a first speed and a second speed faster than said first speed; and control means for controlling said moving means to move said recording head relative to the recording medium at said first speed during said color recording and at said second speed during said monochromatic recording.
Claim 30
Dependent Claim
20 words
An ink jet recording apparatus according to claim 25, wherein plural ink discharge openings are integrally provided on said head.
Claim 31
Dependent Claim
21 words
An ink jet recording apparatus according to claim 26, wherein one ink discharge opening is provided for each color of ink.
Claim 32
Dependent Claim
20 words
An ink jet recording apparatus according to claim 26, wherein plural ink discharge openings are provided for each color ink.
Claim 33
Dependent Claim
15 words
An ink jet recording apparatus to claim 25, wherein a plurality of heads are provided.
Claim 34
Dependent Claim
24 words
An ink jet recording apparatus according to claim 29, wherein one ink discharge opening is provided for each color of ink on each head.
Claim 35
Dependent Claim
24 words
An ink jet recording apparatus according to claim 29, wherein plural ink discharge openings are provided for each color of ink on each head.
Claim 36
Dependent Claim
33 words
An ink jet recording apparatus according to claim 25, wherein at least one head equipped with the ink discharge openings is provided and is removably mounted on a main body of the apparatus.
Claim 37
Dependent Claim
31 words
An ink jet recording apparatus according to claim 25, wherein said head is provided with ink discharge openings extending a line length of the recording medium for each color of ink.
Claim 38
Dependent Claim
18 words
An ink jet recording apparatus according to claim 25, wherein said non-black inks are cyan, magenta and yellow.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-06-14 | 1996-12-14 | 1997-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-14 | 2000-12-14 | 2001-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-14 | 2004-12-14 | 2005-06-15 | $7700.00 | Window Closed / Lapsed |