EP0517468A2
Expired / Lapsed
EP
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Ink jet recording method and apparatus
Assignee: Canon Inc
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Filing: 1992-06-02
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Granted: —
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Expires: 2012-06-02
Abstract
Abstract In an apparatus for recording color images making use of a plurality of inks of different colors (Y, M, C, K), the penetrability of at least one ink is caused to differ from that of the other inks. In particular, the penetrability of an ink higher in lightness is made higher than that of another ink lower in lightness. For example, inks are prepared in such a manner that their penetrability becomes higher in the order of K < M = C < Y, thereby permitting speedy recording of clear and sharp images free from formation of inadequate feathering at boundaries between inks of different colors.
Inventors
- 👤 Hitoshi C/O Canon Kabushiki Kaisha Sugimoto
- 👤 Hiromitsu C/O Canon Kabushiki Kaisha Hirabayashi
- 👤 Shigeyasu C/O Canon Kabushiki Kaisha Nagoshi
- 👤 Hiroshi C/O Canon Kabushiki Kaisha Tajika
- 👤 Atsushi C/O Canon Kabushiki Kaisha Arai
- 👤 Yuji C/O Canon Kabushiki Kaisha Akiyama
- 👤 Miyuki C/O Canon Kabushiki Kaisha Matsubara
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 17:33
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/21; B41J2/2107
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
64 words
An ink-jet recording apparatus comprising: first recording means for discharging a first ink onto a recording medium; second recording means for discharging a second ink onto the recording medium; and transfer means for moving the recording medium relative to the first and the second means, wherein the penetrability of the first ink into the recording medium is higher than that of the second ink.
Claim 2
Dependent Claim
23 words
The ink-jet recording apparatus according to claim 1, wherein the lightness of the first ink is higher than that of the second ink.
Claim 3
Dependent Claim
38 words
The ink-jet recording apparatus according to claim 1 or 2, wherein the first and the second recording means are arranged in such a manner that the second ink arrives at the recording medium earlier than the first ink.
Claim 4
Dependent Claim
66 words
The ink-jet recording apparatus according to any one of claims 1 to 3, wherein each of the first and the second recording means is equipped with a plurality of energy-generating elements for discharging an ink droplet and the change of state of the first and the second inks is caused to take place using the energy generated from the energy-generating elements, thereby discharging the ink droplet.
Claim 5
Dependent Claim
17 words
The ink-jet recording apparatus according to claim 4, wherein the energy-generating element is an electro-thermal converting element.
Claim 6
Dependent Claim
58 words
An ink-jet recording method comprising recording an image on a recording medium using a plurality of inks of different colors, wherein the composition of at least one of the inks is adjusted in such a manner that the penetrability of the at least one ink into the recording medium is different from that of another of the inks.
Claim 7
Dependent Claim
22 words
The ink-jet recording method according to claim 6, wherein the penetrating rates of the inks are changed depending on the lightness thereof.
Claim 8
Dependent Claim
32 words
The ink-jet recording method according to claim 7, wherein the penetrability of an ink higher in lightness is adjusted so as to become higher than that of another ink lower in lightness.
Claim 9
Dependent Claim
30 words
The ink-jet recording method according to claim 6, wherein the ink lower in penetrability into the recording medium arrives at the recording medium earlier than the ink higher in penetrability.
Claim 10
Dependent Claim
44 words
The ink-jet recording method according to any one of claims 6 to 9, wherein the change of state of the inks is caused to take place by the energy generated from an energy-generating element for discharging an ink droplet, thereby discharging the ink droplet.
Claim 11
Dependent Claim
17 words
The ink-jet recording method according to claim 11, wherein the energy-generating element is an electro-thermal converting element.
References Cited (Backward Citations)
No citation records indexed.
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