EP0703087A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Ink jet printing method and apparatus
Assignee: Canon Inc
•
Filing: 1995-08-08
•
Granted: —
•
Expires: 2015-08-08
Abstract
Abstract An ink jet printing method using an ink jet ejecting portion for ejecting ink on a printing material and a print quality improving liquid ejecting portion for ejecting print quality improving liquid to be ejected to the printing material, the improvement residing in that an application mode of the print quality improving liquid is different depending on a printing mode in which printing operation is carried out.
Inventors
- 👤 Jiro C/O Canon Kabushiki Kaisha Moriyama
- 👤 Toshiyuki C/O Canon Kabushiki Kaisha Onishi
- 👤 Hiroshi C/O Canon Kabushiki Kaisha Tajika
- 👤 Toshiharu C/O Canon Kabushiki Kaisha Inui
- 👤 Hitoshi C/O Canon Kabushiki Kaisha Sugimoto
- 👤 Kiichiro C/O Canon Kabushiki Kaisha Takahashi
- 👤 Masao C/O Canon Kabushiki Kaisha Kato
- 👤 Minako c/o Canon Kabushiki Kaisha Kato
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 03:59
CPC Classifications
B; B41; B41J; B41J5/00; B41J5/30; B41J2/00; B41J2/005; B41J2/01; B41J2/21; B41J2/2107; B41J2/2114; B41J2/135; B41J2/165; B41J2/16505; B41J2/16508
Claims Analysis
Total Claims: 103
Claim 1
Independent Claim
67 words
An ink jet printing method using an ink jet ejecting portion for ejecting ink on a printing material and a print quality improving liquid ejecting portion for ejecting print quality improving liquid to be ejected to the printing material, the improvement residing in that: an application mode of the print quality improving liquid is different depending on a printing mode in which printing operation is carried out.
Claim 2
Dependent Claim
27 words
A method according to Claim 2, wherein said application mode includes one or more of an amount, property and manner of application, of print quality improving liquid.
Claim 3
Dependent Claim
67 words
An ink jet printing method using an ink jet ejecting portion for ejecting ink on a printing material and a print quality improving liquid ejecting portion for ejecting print quality improving liquid to be ejected to the printing material, the improvement residing in that: an amount of the print quality improving liquid applied is different depending on a printing mode in which printing operation is carried out.
Claim 4
Dependent Claim
34 words
A method according to Claim 3, wherein the amount of the print quality improving liquid per unit area of the printing material decreases with increase of number of scans on the same recording area.
Claim 5
Dependent Claim
77 words
An ink jet printing method using an ink jet ejecting portion for ejecting ink on a printing material and a print quality improving liquid ejecting portion for ejecting print quality improving liquid to be ejected to the printing material, the improvement residing in that: deferent kinds of print quality improving liquids are prepared, and the kind of used the print quality improving liquid is different depending on a printing mode in which printing operation is carried out.
Claim 6
Dependent Claim
30 words
A method according to Claim 5, wherein a kind of print quality improving liquid having a smaller surface tension is used for an area where number of scans is large.
Claim 7
Dependent Claim
68 words
An ink jet printing method using an ink jet ejecting portion for ejecting ink on a printing material and a print quality improving liquid ejecting portion for ejecting print quality improving liquid to be ejected to the printing material, the improvement residing in that: an amount of the print quality improving liquid applied is different depending on whether a printing mode is for color printing or monochromatic printing.
Claim 8
Dependent Claim
23 words
A method according to Claim 7, wherein an amount of print quality improving liquid per unit area is larger for the monochromatic mode.
Claim 9
Dependent Claim
67 words
An ink jet printing method using an ink jet ejecting portion for ejecting ink on a printing material and a print quality improving liquid ejecting portion for ejecting print quality improving liquid to be ejected to the printing material, the improvement residing in that: an amount of the print quality improving liquid applied is different depending on whether a printing datum is for black color or not.
Claim 10
Dependent Claim
23 words
A method according to Claim 9, wherein the amount of print quality improving liquid per unit area is larger for the black color.
Claim 11
Dependent Claim
78 words
An ink jet printing method using an ink jet ejecting portion for ejecting ink on a printing material and a print quality improving liquid ejecting portion for ejecting print quality improving liquid to be ejected to the printing material, the improvement residing in that: deferent kinds of print quality improving liquids are prepared, and the kind of used the print quality improving liquid is different depending on whether a printing mode is for color printing or monochromatic printing.
Claim 12
Dependent Claim
28 words
A method according to Claim 11, wherein wherein a kind of print quality improving liquid having a smaller surface tension surface tension is used for the black color.
Claim 13
Dependent Claim
74 words
An ink jet printing method using an ink jet ejecting portion for ejecting ink on a printing material and a print quality improving liquid ejecting portion for ejecting print quality improving liquid to be ejected to the printing material, the improvement residing in that: a scanning operation for the print quality improving liquid and a scanning operation for at least one of black, yellow, magenta and cyan colors, are made different from each other.
Claim 14
Dependent Claim
132 words
An ink jet printing method using an ink jet ejecting portion for ejecting ink on a printing material and a print quality improving liquid ejecting portion for ejecting print quality improving liquid to be ejected to the printing material, the improvement residing in that: a recording head for the print quality improving liquid is disposed between, in a direction of main scan, a recording head for black color and a rh for yellow, magenta and cyan colors; a scanning operation of the recording head for the black color and a scanning operation of the recording head for the yellow, magenta and cyan colors are made different from each other; and different kinds of print quality improving liquid are used for the black color and for the yellow, magenta and cyan colors, respectively.
Claim 15
Dependent Claim
26 words
An apparatus for a method as defined in Claim 1, wherein said method uses thermal energy for ejecting the ink and the print quality improving liquid.
Claim 16
Dependent Claim
11 words
An apparatus according to Claim 15, wherein scanning operation is reciprocal.
Claim 17
Dependent Claim
27 words
An apparatus according to Claim 16, wherein said print quality improving liquid ejecting portion and said ink ejecting portions are arranged in a direction of reciprocal movement.
Claim 18
Dependent Claim
31 words
An apparatus according to Claim 17, wherein a recording head is used which has an array of ejection outlets in a direction substantially perpendicular to the direction of the reciprocal movement.
Claim 19
Dependent Claim
11 words
A print produced by the method as defined in Claim 1.
Claim 20
Dependent Claim
11 words
A print produced by the apparatus as defined in Claim 15.
Claim 21
Dependent Claim
82 words
An ink jet apparatus comprising: an ink ejecting portion for ejecting ink to a printing material; a print quality improving liquid ejecting portion for ejecting print quality improving liquid to a printing material; means for selecting a printing mode out of a plurality of printing modes having different application modes of the print quality improving liquid; and driving means for driving said ink ejecting portion and print quality improving liquid ejecting portion in accordance with the mode selected by said selecting means.
Claim 22
Dependent Claim
24 words
An apparatus according to Claim 21, wherein said ink ejecting portion includes thermal energy generating members for generating thermal energy for ejecting the ink.
Claim 23
Dependent Claim
40 words
An ink jet apparatus comprising: a first ejecting portion for ejecting ink to a printing material; a second ejecting portion for ejecting print quality improving liquid to a printing material; and control means for selectively driving said second ejecting portion.
Claim 24
Dependent Claim
13 words
An apparatus according to Claim 23, wherein said control means is manually operable.
Claim 25
Dependent Claim
19 words
An apparatus according to Claim 23, wherein said control means is responsive of a kind of the printing material.
Claim 26
Dependent Claim
20 words
An apparatus according to Claim 23, wherein the print quality improving liquid has a smaller surface tension than the ink.
Claim 27
Dependent Claim
30 words
An apparatus according to Claim 23, wherein the print quality improving liquid comprises a cation material of low molecular component and high molecular component, and the ink comprises anion dye.
Claim 28
Dependent Claim
30 words
An apparatus according to Claim 23, wherein the print quality improving liquid comprises a cation material of low molecular component and high molecular component, and the ink comprises anion pigment.
Claim 29
Dependent Claim
20 words
An apparatus according to Claim 23, wherein said first ejecting portion and second ejecting portion have thermal energy generating means.
Claim 30
Dependent Claim
77 words
An ink jet printing apparatus using an ink jet ejecting portion for ejecting ink on a printing material and a print quality improving liquid ejecting portion for ejecting print quality improving liquid to be ejected to the printing material, the improvement comprising: control means for controlling an amount of ejected print quality improving liquid in accordance with an ambient condition, when the ink and the print quality improving liquid are mixed or reacted on the printing material.
Claim 31
Dependent Claim
25 words
An apparatus according to Claim 30, wherein the ambient condition includes a temperature, and higher seeping property ink is used when the temperature is high.
Claim 32
Dependent Claim
22 words
An apparatus according to Claim 30, wherein the ambient condition includes a temperature, and the amount decreases with increase of the temperature.
Claim 33
Dependent Claim
17 words
An apparatus according to Claim 31, wherein the higher seeping property ink has higher content of surfactant.
Claim 34
Dependent Claim
76 words
An ink jet printing apparatus using an ink jet ejecting portion for ejecting ink on a printing material and a print quality improving liquid ejecting portion for ejecting print quality improving liquid to be ejected to the printing material, the improvement comprising: control means for changing a kind of print quality improving liquid in accordance with an ambient condition, when the ink and the print quality improving liquid are mixed or reacted on the printing material.
Claim 35
Dependent Claim
23 words
An apparatus according to Claim 34, wherein the ambient condition includes an ambient humidity, and the amount decreases with decrease of the humidity.
Claim 36
Dependent Claim
26 words
An apparatus according to Claim 34, wherein the ambient condition includes an ambient humidity, and higher seeping property ink is used when the humidity is low.
Claim 37
Dependent Claim
24 words
An apparatus according to Claim 34, wherein said control means uses different kinds of print quality improving liquid in accordance with the ambient condition.
Claim 38
Dependent Claim
86 words
An ink jet printing apparatus using an ink jet ejecting portion for ejecting ink on a printing material and a print quality improving liquid ejecting portion for ejecting print quality improving liquid to be ejected to the printing material, the improvement comprising: control means for changing a kind of print quality improving liquid and for controlling an amount of print quality improving liquid in accordance with an ambient condition, when the ink and the print quality improving liquid are mixed or reacted on the printing material.
Claim 39
Dependent Claim
23 words
An apparatus according to Claim 38, wherein the ambient condition includes an ambient temperature, and the amount decreases with increase of the temperature.
Claim 40
Dependent Claim
23 words
An apparatus according to Claim 38, wherein the ambient condition includes an ambient humidity, and the amount decreases with decrease of the humidity.
Claim 41
Dependent Claim
25 words
An apparatus according to Claim 38, wherein the ambient condition includes a temperature, and higher seeping property ink is used when the temperature is high.
Claim 42
Dependent Claim
26 words
An apparatus according to Claim 38, wherein the ambient condition includes an ambient humidity, and higher seeping property ink is used when the humidity is low.
Claim 43
Dependent Claim
24 words
An apparatus according to Claim 38, wherein said control means uses different kinds of print quality improving liquid in accordance with the ambient condition.
Claim 44
Dependent Claim
24 words
An apparatus according to Claim 42, wherein said control means uses different kinds of print quality improving liquid in accordance with the ambient condition.
Claim 45
Dependent Claim
79 words
An ink jet printing apparatus using an ink jet ejecting portion for ejecting ink on a printing material and a print quality improving liquid ejecting portion for ejecting print quality improving liquid to be ejected to the printing material, the improvement comprising: control means for controlling an amount of print quality improving liquid in accordance with a kind of the printing material, when the ink and the print quality improving liquid are mixed or reacted on the printing material.
Claim 46
Dependent Claim
31 words
An apparatus according to Claim 45, wherein said control means increases an amount of the print quality improving liquid per unit area with decrease of seeping property of the printing material.
Claim 47
Dependent Claim
28 words
An apparatus according to Claim 45, wherein said control means uses higher seeping property print quality improving liquid when the seeping property of the printing material is low.
Claim 48
Dependent Claim
27 words
An apparatus according to Claim 45, wherein said control means uses different kinds of print quality improving liquid in accordance with the kind of the printing material.
Claim 49
Dependent Claim
79 words
An ink jet printing apparatus using an ink jet ejecting portion for ejecting ink on a printing material and a print quality improving liquid ejecting portion for ejecting print quality improving liquid to be ejected to the printing material, the improvement comprising: control means for changing a kind of print quality improving liquid in accordance with a kind of the printing material, when the ink and the print quality improving liquid are mixed or reacted on the printing material.
Claim 50
Dependent Claim
28 words
An apparatus according to Claim 49, wherein said control means uses higher seeping property print quality improving liquid when the seeping property of the printing material is low.
Claim 51
Dependent Claim
27 words
An apparatus according to Claim 49, wherein said control means uses different kinds of print quality improving liquid in accordance with the kind of the printing material.
Claim 52
Dependent Claim
90 words
An ink jet printing apparatus using an ink jet ejecting portion for ejecting ink on a printing material and a print quality improving liquid ejecting portion for ejecting print quality improving liquid to be ejected to the printing material, the improvement comprising: control means for changing a kind of print quality improving liquid and for controlling an amount of the print quality improving liquid, in accordance with a kind of the printing material, when the ink and the print quality improving liquid are mixed or reacted on the printing material.
Claim 53
Dependent Claim
31 words
An apparatus according to Claim 52, wherein said control means increases an amount of the print quality improving liquid per unit area with decrease of seeping property of the printing material.
Claim 54
Dependent Claim
28 words
An apparatus according to Claim 52, wherein said control means uses higher seeping property print quality improving liquid when the seeping property of the printing material is low.
Claim 55
Dependent Claim
27 words
An apparatus according to Claim 52, wherein said control means uses different kinds of print quality improving liquid in accordance with the kind of the printing material.
Claim 56
Dependent Claim
79 words
An ink jet printing apparatus using an ink jet ejecting portion for ejecting ink on a printing material and a print quality improving liquid ejecting portion for ejecting print quality improving liquid to be ejected to the printing material, the improvement comprising: control means for ejecting the print quality improving liquid to such an area on the printing material as is determined corresponding to ejection of the ink of a predetermined color out of a plurality of color inks.
Claim 57
Dependent Claim
12 words
An apparatus according to Claim 56, wherein the predetermined color is selectable.
Claim 58
Dependent Claim
12 words
An apparatus according to Claim 56, wherein the predetermined color is black.
Claim 59
Dependent Claim
72 words
An ink jet printing apparatus using an ink jet ejecting portion for ejecting ink on a printing material and a print quality improving liquid ejecting portion for ejecting print quality improving liquid to be ejected to the printing material, the improvement comprising: control means for ejecting the print quality improving liquid to such an area on the printing material as is determined corresponding to a selected datum for ejection of the ink.
Claim 60
Dependent Claim
16 words
An apparatus according to Claim 59, wherein the selected datum is the one for a character.
Claim 61
Dependent Claim
13 words
An apparatus according to Claim 59, wherein the selected datum can be changed.
Claim 62
Dependent Claim
89 words
An ink jet printing apparatus using an ink jet ejecting portion for ejecting ink on a printing material and a print quality improving liquid ejecting portion for ejecting print quality improving liquid to be ejected to the printing material, the improvement comprising: control means for ejecting the print quality improving liquid to such an area on the printing material as is determined corresponding to a selected datum for ejection of the ink and corresponding to ejection of the ink of a predetermined color out of a plurality of inks.
Claim 63
Dependent Claim
21 words
An apparatus according to Claim 62, wherein the predetermined color is black, and the selected datum is the one for character.
Claim 64
Dependent Claim
37 words
An apparatus according to Claim 62, wherein the predetermined color is a one selected from yellow, magenta and cyan, and the ink of other than the predetermined color is a back ink having durability against the ink.
Claim 65
Dependent Claim
12 words
An apparatus according to Claim 62, wherein the predetermined color is selectable.
Claim 66
Dependent Claim
12 words
An apparatus according to Claim 62, wherein the selected datum is changeable.
Claim 67
Dependent Claim
28 words
An apparatus according to Claim 30, wherein said print quality improving liquid ejecting portion has an electromechanical transducer for ejecting the ink and the print quality improving liquid.
Claim 68
Dependent Claim
28 words
An apparatus according to Claim 30, wherein said print quality improving liquid ejecting portion has an electrothermal transducer for ejecting the ink and the print quality improving liquid.
Claim 69
Dependent Claim
35 words
An apparatus according to Claim 30, wherein said print quality improving liquid ejecting portion has a combination of a electrothermal transducer and an electromechanical transducer for ejecting the ink and the print quality improving liquid.
Claim 70
Dependent Claim
30 words
An apparatus according to Claim 30, wherein said print quality improving liquid comprises a low molecular cation material and a high molecular cation material, and said ink comprises anion dye.
Claim 71
Dependent Claim
32 words
An apparatus according to Claim 30, wherein said print quality improving liquid comprises a low molecular cation material and a high molecular cation material, and the ink comprises anion compound and pigment.
Claim 72
Dependent Claim
37 words
An apparatus according to Claim 30, wherein said print quality improving liquid ejecting portion has a thermal energy converter to eject the liquid, and said ink ejecting portion has a thermal energy converter to eject the ink.
Claim 73
Dependent Claim
12 words
An apparatus according to Claim 73, wherein said ejecting portions are reciprocable.
Claim 74
Dependent Claim
27 words
An apparatus according to Claim 73, wherein said print quality improving liquid ejecting portion and said ink ejecting portions are arranged in a direction of the reciprocation.
Claim 75
Dependent Claim
29 words
An apparatus according to Claim 74, wherein said said ejecting portions have an array of ejection outlets in a direction substantially perpendicular to the direction of the reciprocation, respectively.
Claim 76
Dependent Claim
11 words
A print produced using said apparatus as defined in Claim 30.
Claim 77
Dependent Claim
109 words
An ink jet recording method for recording on a printing material using a plurality of color inks and a print quality improving liquid for coagulating or causing insoluble coloring material of the inks, the improvement residing in that: printing operation is capable in at least two of a first mode wherein the print quality improving liquid is ejected for an entire printing area of the printing material, a second mode wherein the print quality improving liquid is ejected mainly on a boundary between different inks on the printing material, and a third mode wherein the print quality improving liquid is not ejected; and said mode is selectable during printing.
Claim 78
Dependent Claim
20 words
A method according to Claim 77, wherein said boundary is between a black color ink and a non-black color ink.
Claim 79
Dependent Claim
108 words
An ink jet recording method for recording on a printing material using chromatic ink containing coloring material and substantially hypochromic or byaline print quality improving liquid containing a component effective to coagulate or causing insoluble a component of the ink by mixing or reacting with the ink, the improvement residing in that: at least a black ink ejecting portion for ejecting black ink, a print quality improving liquid ejecting portion for ejecting liquid containing at least the print quality improving liquid, are used; during one scan, an ejecting portion at a position prior to the black ink ejecting portion is used to eject the print quality improving liquid.
Claim 80
Dependent Claim
158 words
An ink jet recording method for recording on a printing material using a plurality of color inks and a print quality improving liquid for coagulating or causing insoluble coloring materials of the inks, the improvement residing in that: printing operation is capable in at least two of a first mode wherein the print quality improving liquid is ejected for an entire printing area of the printing material, a second mode wherein the print quality improving liquid is ejected mainly on a boundary between different inks on the printing material, and a third mode wherein the print quality improving liquid is not ejected; and in the first and second modes, an amount of ink ejection per unit area for an area of the printing material where the print quality improving liquid and the ink are superimposed, is larger than an amount of ink ejection per unit area for an area of the printing material where they are not superimposed.
Claim 81
Dependent Claim
20 words
A method according to Claim 80, wherein said boundary is between a black color ink and a non-black color ink.
Claim 82
Dependent Claim
171 words
An ink jet recording method for recording on a printing material using chromatic ink containing coloring material and substantially hypochromic or byaline print quality improving liquid containing a component effective to coagulate or causing insoluble a component of the ink by mixing or reacting with the ink, the improvement residing in that: at least a black ink ejecting portion for ejecting black ink, a print quality improving liquid ejecting portion for ejecting liquid containing at least the print quality improving liquid, chromatic ink ejecting portion for ejecting yellow, magenta and/or cyan inks, are used; the print quality improving liquid ejecting portion is disposed at an end in a main scan direction; in a printing mode wherein the print quality improving liquid is mainly ejected for a boundary between the black ink and a non-black ink, first color, second color, third color and fourth color inks are sequentially ejected; for ejection of the print quality improving liquid, an ejecting portion disposed prior to the ejecting portion for printing the second color ink.
Claim 83
Dependent Claim
27 words
A method according to Claim 82, wherein the first color ink is a yellow, magenta or cyan ink, and the second color ink is the black ink.
Claim 84
Dependent Claim
26 words
A method according to Claim 82, wherein the first color ink is a black ink, an the second color ink is yellow, magenta or cyan ink.
Claim 85
Dependent Claim
14 words
A method according to Claim 77, wherein said ejecting portion has an electrothermal transducer.
Claim 86
Dependent Claim
14 words
A method according to Claim 77, wherein said ejecting portion has an electromechanical transducer.
Claim 87
Dependent Claim
26 words
A method according to Claim 77, wherein said print quality improving liquid contains high molecular and low molecular cation materials, and the ink contains anion dye.
Claim 88
Dependent Claim
32 words
A method according to Claim 77, wherein said print quality improving liquid contains high molecular and low molecular cation materials, and the ink contains anion dye, or contains anion material and pigment.
Claim 89
Dependent Claim
113 words
An ink jet recording apparatus for recording on a printing material using a plurality of color inks and a print quality improving liquid for coagulating or causing insoluble coloring material of the inks, the improvement residing in that: printing operation is capable in at least two of a first mode wherein the print quality improving liquid is ejected for an entire printing area of the printing material, a second mode wherein the print quality improving liquid is ejected mainly on a boundary between different inks on the printing material, and a third mode wherein the print quality improving liquid is not ejected; and there is provided means for switching the mode during printing.
Claim 90
Dependent Claim
20 words
An apparatus according to Claim 89, wherein said boundary is between a black color ink and a non-black color ink.
Claim 91
Dependent Claim
108 words
An ink jet recording apparatus for recording on a printing material using chromatic ink containing coloring material and substantially hypochromic or byaline print quality improving liquid containing a component effective to coagulate or causing insoluble a component of the ink by mixing or reacting with the ink, the improvement residing in that: at least a black ink ejecting portion for ejecting black ink, a print quality improving liquid ejecting portion for ejecting liquid containing at least the print quality improving liquid, are provided; during one scan, an ejecting portion at a position prior to the black ink ejecting portion is used to eject the print quality improving liquid.
Claim 92
Dependent Claim
164 words
An ink jet recording apparatus for recording on a printing material using a plurality of color inks and a print quality improving liquid for coagulating or causing insoluble coloring materials of the inks, the improvement residing in that: printing operation is capable in at least two of a first mode wherein the print quality improving liquid is ejected for an entire printing area of the printing material, a second mode wherein the print quality improving liquid is ejected mainly on a boundary between different inks on the printing material, and a third mode wherein the print quality improving liquid is not ejected; and control means for operating such that in the first and second modes, an amount of ink ejection per unit area for an area of the printing material where the print quality improving liquid and the ink are superimposed, is larger than an amount of ink ejection per unit area for an area of the printing material where they are not superimposed.
Claim 93
Dependent Claim
21 words
An apparatus according to Claim 92 , wherein said boundary is between a black color ink and a non-black color ink.
Claim 94
Dependent Claim
171 words
An ink jet recording method for recording on a printing material using chromatic ink containing coloring material and substantially hypochromic or byaline print quality improving liquid containing a component effective to coagulate or causing insoluble a component of the ink by mixing or reacting with the ink, the improvement residing in that: at least a black ink ejecting portion for ejecting black ink, a print quality improving liquid ejecting portion for ejecting liquid containing at least the print quality improving liquid, chromatic ink ejecting portion for ejecting yellow, magenta and/or cyan inks, are used; the print quality improving liquid ejecting portion is disposed at an end in a main scan direction; in a printing mode wherein the print quality improving liquid is mainly ejected for a boundary between the black ink and a non-black ink, first color, second color, third color and fourth color inks are sequentially ejected; for ejection of the print quality improving liquid, an ejecting portion disposed prior to the ejecting portion for printing the second color ink.
Claim 95
Dependent Claim
27 words
An apparatus according to Claim 94, wherein the first color ink is a yellow, magenta or cyan ink, and the second color ink is the black ink.
Claim 96
Dependent Claim
26 words
An apparatus according to Claim 94, wherein the first color ink is a black ink, an the second color ink is yellow, magenta or cyan ink.
Claim 97
Dependent Claim
14 words
An apparatus according to Claim 89, wherein said ejecting portion has an electrothermal transducer.
Claim 98
Dependent Claim
14 words
An apparatus according to Claim 89, wherein said ejecting portion has an electromechanical transducer.
Claim 99
Dependent Claim
26 words
An apparatus according to Claim 89, wherein said print quality improving liquid contains high molecular and low molecular cation materials, and the ink contains anion dye.
Claim 100
Dependent Claim
32 words
An apparatus according to Claim 89, wherein said print quality improving liquid contains high molecular and low molecular cation materials, and the ink contains anion dye, or contains anion material and pigment.
Claim 101
Dependent Claim
65 words
An ink jet apparatus comprising: a first ejecting portion for ejecting ink to a printing material; a second ejecting portion for ejecting print quality improving liquid to a printing material; setting means for an operational mode of said second ejecting portion in accordance with an image datum; and driving means for driving said second ejecting portion in accordance with an output of said setting means.
Claim 102
Dependent Claim
67 words
An ink jet apparatus comprising: a first ejecting portion for ejecting ink to a printing material; a second ejecting portion for ejecting print quality improving liquid to a printing material; setting means for an operational mode of said second ejecting portion in accordance with an condition during printing operation; and driving means for driving said second ejecting portion in accordance with an output of said setting means.
Claim 103
Dependent Claim
131 words
An ink jet printing method or apparatus wherein a print quality improving medium application condition or conditions, for example whether or not the improving medium is applied, the application mode, amount, type, area covered by and/or sequence of application is/are controlled in accordance with a printing condition or conditions, for example any one or more of the following: ambient conditions such as temperature or humidity, type of image (for example whether a character, graph or picture is being printing), type of printing data, type of ink, whether monochrome or color printing is selected, whether different color inks are being superimposed, the printing mode, the number and/or type of any scanning operations of a printing head of the apparatus, a manual input from a user of the apparatus, type of recording medium.
References Cited (Backward Citations)
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