EP0377208A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Apparatus for generating ions using low signal voltage and apparatus for ion recording using low signal voltage
Assignee: Toshiba Corp
•
Filing: 1989-12-27
•
Granted: —
•
Expires: 2009-12-27
Abstract
Abstract An apparatus for ion recording using an apparatus for generating ions which can be operated by a low signal voltage. The corona ions are controlled either by imposing the low signal voltage which changes the voltage level of the corona ion generation section above and below the critical voltage for corona ion generation, or by controlling the flows of constantly generated corona ions using the low signal voltage which changes the relative voltage level of the corona ion generation section in order to turn the flows of corona ions on and off.
Inventors
- 👤 Yasuo Hosaka
- 👤 Tadayoshi Ohno
- 👤 Hideyuki Nokao
- 👤 Hitoshi Nagato
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 07:15
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/385; B41J2/41; B41J2/415; G; G03; G03G; G03G15/00; G03G15/22; G03G15/32; G03G15/321; G03G15/323
Claims Analysis
Total Claims: 73
Claim 1
Independent Claim
141 words
An apparatus for generating ions, comprising: first electrode means(2) for generating ion; first voltage source means(7, 8) for constantly applying, to the first electrode means, a first voltage; second electrode means(3) for starting the ion generation by the first electrode means(2), which is located in a vicinity of the first electrode means(2) with a gap(4); and second voltage source means(11) for applying, to the second electrode means(3), a second voltage; characterized in that the first voltage being slightly less than a critical voltage for an ion generation, and the second voltage being significantly less than the first voltage having such an amplitude that a total of the first and the second voltages exceeds the critical voltage such that the ion generation by the first electrode means(2) takes place only while the second voltage is being applied to the second electrode means(3).
Claim 2
Independent Claim
141 words
An apparatus for generating ions, comprising: first electrode means(2) for generating ion; first voltage source means(7, 8) for constantly applying, to the first electrode means, a first voltage; second electrode means(3) for starting the ion generation by the first electrode means(2), which is located in a vicinity of the first electrode means(2) with a gap(4); and second voltage source means(11) for applying, to the second electrode means(3), a second voltage; characterized in that the first voltage being slightly less than a critical voltage for an ion generation, and the second voltage being significantly less than the first voltage having such an amplitude that a total of the first and the second voltages exceeds the critical voltage such that the ion generation by the first electrode means(2) takes place only while the second voltage is being applied to the second electrode means(3).
Claim 3
Dependent Claim
58 words
The apparatus of claim 1, wherein the second voltage is applied with a prescribed pulse width, and wherein the first voltage source means(7, 8) comprises an alternating voltage source(7) for applying an alternating voltage having a period significantly shorter than the pulse width of the second voltage; and a direct voltage source(8) for applying a direct bias voltage.
Claim 4
Dependent Claim
118 words
The apparatus of claim 2, further comprising: additional electrode means(17) for detecting an amount of ions generated by the first electrode means(2), which is located in a vicinity of the first electrode means(2) with the same gap as the gap(4) between the first and second electrode means(2, 3), to which a third voltage greater than the critical voltage is applied; and means(9) for controlling the direct voltage source(8) of the first voltage source means(7, 8) and the second voltage source means(11) in accordance with the amount of ions detected by the additional electrode means (17) such that the first voltage and the second voltage have amplitudes appropriate for a prescribed desired ion generation by the first electrode means(2).
Claim 5
Dependent Claim
26 words
The apparatus of claim 3, wherein the direct voltage source(8) increases the second voltage gradually from zero to an appropriate amplitude specified by the controlling means(9).
Claim 6
Dependent Claim
53 words
The apparatus of claim 4, further comprising a heater means for heating the first electrode means(2), and wherein the controlling means(9) also controls the heater means in accordance with the amount of ions detected by the additional electrode means(17) such that a prescribed desired ion generation is obtained by the first electrode means(2).
Claim 7
Dependent Claim
16 words
The apparatus of claim 1, wherein the second electrode means(3) is covered by an insulative resin(5).
Claim 8
Dependent Claim
20 words
The apparatus of claim 1, wherein the first and the second electrode means(2, 3) are mounted on an insulative substrate(1).
Claim 9
Dependent Claim
23 words
The apparatus of claim 1, further comprising a third electrode means(6) for defining a ground level for the first and the second voltages.
Claim 10
Independent Claim
228 words
An apparatus for generating ions, comprising: first electrode means(42) for generating ion; first voltage source means(47, 48) for applying, to the first electrode means(42), a first voltage; second electrode means(44) for controllably starting the ion generation by the first electrode means(42), which is located in a vicinity of the first electrode means (42) with a gap; second voltage source means (48) for applying, to the second electrode means(44), a second voltage having such an amplitude that a total of the first and the second voltages exceeds a critical voltage for an ion generation such that the ion generation by the first electrode means(42) takes place only when the second voltage is being applied to the second electrode means(44); additional electrode means(43) for detecting an amount of ions generated by the first electrode means(42), which is located in a vicinity of the first electrode means(42) with the same gap as the gap between the first and second electrode means(42, 44), to which a third voltage greater than the critical voltage is applied; and means(46) for controlling the direct voltage source of the first voltage source means(47, 48) and the second voltage source means(48) in accordance with the amount of ions detected by the additional electrode means(43) such that the first voltage and the second voltage have amplitudes appropriate for a prescribed desired ion generation by the first electrode means(42).
Claim 11
Independent Claim
228 words
An apparatus for generating ions, comprising: first electrode means(42) for generating ion; first voltage source means(47, 48) for applying, to the first electrode means(42), a first voltage; second electrode means(44) for controllably starting the ion generation by the first electrode means(42), which is located in a vicinity of the first electrode means (42) with a gap; second voltage source means (48) for applying, to the second electrode means(44), a second voltage having such an amplitude that a total of the first and the second voltages exceeds a critical voltage for an ion generation such that the ion generation by the first electrode means(42) takes place only when the second voltage is being applied to the second electrode means(44); additional electrode means(43) for detecting an amount of ions generated by the first electrode means(42), which is located in a vicinity of the first electrode means(42) with the same gap as the gap between the first and second electrode means(42, 44), to which a third voltage greater than the critical voltage is applied; and means(46) for controlling the direct voltage source of the first voltage source means(47, 48) and the second voltage source means(48) in accordance with the amount of ions detected by the additional electrode means(43) such that the first voltage and the second voltage have amplitudes appropriate for a prescribed desired ion generation by the first electrode means(42).
Claim 12
Independent Claim
151 words
An apparatus for generating ions, comprising: first electrode means(42) for generating ion; first voltage source means(47, 48) for applying, to the first electrode means(42), a first voltage, comprising; an alternating voltage source(47) for applying an alternating voltage; and a direct voltage source(48) for applying a direct bias voltage such that the direct bias voltage gradually increases from zero to an appropriate amplitude; second electrode means(44) for starting the ion generation by the first electrode means(42), which is located in a vicinity of the first electrode means(42) with a gap; and second voltage source means(48) for applying, to the second electrode means(44), a second voltage having such an amplitude that a total of the first and the second voltages exceeds a critical voltage for an ion generation such that the ion generation by the first electrode means(42) takes place only when the second voltage is being applied to the second electrode means(44).
Claim 13
Independent Claim
151 words
An apparatus for generating ions, comprising: first electrode means(42) for generating ion; first voltage source means(47, 48) for applying, to the first electrode means(42), a first voltage, comprising; an alternating voltage source(47) for applying an alternating voltage; and a direct voltage source(48) for applying a direct bias voltage such that the direct bias voltage gradually increases from zero to an appropriate amplitude; second electrode means(44) for starting the ion generation by the first electrode means(42), which is located in a vicinity of the first electrode means(42) with a gap; and second voltage source means(48) for applying, to the second electrode means(44), a second voltage having such an amplitude that a total of the first and the second voltages exceeds a critical voltage for an ion generation such that the ion generation by the first electrode means(42) takes place only when the second voltage is being applied to the second electrode means(44).
Claim 14
Independent Claim
160 words
An apparatus for generating ions, comprising: corona ion generation electrode means(218) having a gap(220) for generating corona ions in the gap(220); induction electrode means(219) for inducing electric field for generating corona ions in the gap(220) of the corona ion generation electrode means(218); corona ion control electrode means(216) having corona ion passing hole(216a) for controlling a flow of corona ions generated by the corona ion generation electrode means(218) and passing through the corona ion passing hole(216a); alternating voltage source means(223) for applying alternating voltage to cause corona ion generation at the corona ion generation electrode means(218) between the corona ion generation electrode means(218) and the induction electrode means(219); and driving IC means(224, 227) for applying signal voltage to the corona ion control electrode means(216); characterized in that the signal voltage being significantly less than a peak voltage of the alternating voltage, and the flow of corona ions is controlled by the corona ion control electrode means(216) according to the signal voltage.
Claim 15
Independent Claim
160 words
An apparatus for generating ions, comprising: corona ion generation electrode means(218) having a gap(220) for generating corona ions in the gap(220); induction electrode means(219) for inducing electric field for generating corona ions in the gap(220) of the corona ion generation electrode means(218); corona ion control electrode means(216) having corona ion passing hole(216a) for controlling a flow of corona ions generated by the corona ion generation electrode means(218) and passing through the corona ion passing hole(216a); alternating voltage source means(223) for applying alternating voltage to cause corona ion generation at the corona ion generation electrode means(218) between the corona ion generation electrode means(218) and the induction electrode means(219); and driving IC means(224, 227) for applying signal voltage to the corona ion control electrode means(216); characterized in that the signal voltage being significantly less than a peak voltage of the alternating voltage, and the flow of corona ions is controlled by the corona ion control electrode means(216) according to the signal voltage.
Claim 16
Dependent Claim
30 words
The apparatus of claim 11, further comprising barrier electrode means(221), placed inside the gap(220) in the corona ion generation electrode means(218), for cutting off unnecessary electric field inside the gap(220).
Claim 17
Dependent Claim
30 words
The apparatus of claim 12, wherein the barrier electrode means(221) has a width greater than a diameter of the corona ion passing hole(216a) of the corona ion control electrode means(216).
Claim 18
Dependent Claim
30 words
The apparatus of claim 12, wherein the barrier electrode means(221) has a width less than a diameter of the corona ion passing hole(216a) of the corona ion control electrode means(216).
Claim 19
Dependent Claim
38 words
The apparatus of claim 12, further comprising bias voltage source means(222) for applying a common bias voltage to the corona ion generation electrode means(218) and the barrier electrode means(221) with respect to the corona ion control electrode means(216).
Claim 20
Dependent Claim
76 words
The apparatus of claim 11, wherein the signal voltage comprises two distinct voltage levels corresponding to turning on and off of the flow of corona ions, and which further comprises bias voltage source means(222) for applying bias voltage between the corona ion generation electrode means(218) and the induction electrode means(219) with respect to the corona ion control electrode means(216), where the bias voltage is equal to one of the two distinct levels of the signal voltage.
Claim 21
Dependent Claim
46 words
The apparatus of claim 11, further comprising insulative substrate(217) on which the corona ion generation electrode means(218) and the induction electrode means(219) are mounted, and wherein the gap(220) in the corona ion generation electrode means(218) has a width wider than a thickness of the insulative substrate(217).
Claim 22
Dependent Claim
24 words
The apparatus of claim 11, wherein the alternating voltage has a frequency which is an integer multiple of a frequency of the signal voltage.
Claim 23
Dependent Claim
19 words
The apparatus of claim 11, wherein the alternating voltage source means(223) and the driving IC means(224, 227) are synchronized.
Claim 24
Dependent Claim
33 words
The apparatus of claim 11, wherein the alternating voltage has a peak voltage significantly greater than that required for generating sufficient amount of the corona ions needed in recording the electrostatic latent image.
Claim 25
Dependent Claim
29 words
The apparatus of claim 11, wherein the corona ion generation electrode means(218), the induction electrode means(219), and the driving IC means(224, 227) are mounted on a single insulative substrate(217).
Claim 26
Dependent Claim
41 words
The apparatus of claim 11, wherein the corona ion control electrode means (216) comprises a pair of upper electrode means(241) closer to the corona ion generation electrode means (218) and lower electrode means(242) farther from the corona ion generation electrode means(218).
Claim 27
Dependent Claim
19 words
The apparatus of claim 22, wherein the upper electrode means(241) of the corona ion control electrode means(216) is grounded.
Claim 28
Dependent Claim
40 words
The apparatus of claim 11, wherein the corona ion generation electrode means (218) and the corona ion control electrode means (216) are separated by a distance greater than a width of the gap(220) in the corona ion generation electrode means(218).
Claim 29
Dependent Claim
37 words
The apparatus of claim 11, further comprising acceleration voltage source means(222) for applying an acceleration voltage to accelerate the flow of corona ions between the corona ion generation electrode means(218) and the corona ion control electrode means(216).
Claim 30
Dependent Claim
49 words
The apparatus of claim 11, further comprising insulative substrate(217) on which the corona ion generation electrode means(218) is mounted, and wherein an angle between edges of the corona ion generation electrode means(218) facing the gap(220) and a face of the insulative substrate(217) facing the gap(220) is less than 90°.
Claim 31
Dependent Claim
65 words
The apparatus of claim 26, further comprising barrier electrode means(221), placed inside the gap(220) in the corona ion generation electrode means(218) and also mounted on the insulative substrate(217), for cutting off unnecessary electric field inside the gap(220), and wherein an angle between edges of the barrier electrode means(221) facing the gap(220) and a face of the insulative substrate(217) facing the gap(220) is less than 90°.
Claim 32
Dependent Claim
23 words
The apparatus of claim 11, wherein the apparatus is divided into more than one divided sections(214A, 214B, 214C) which can be activated independently.
Claim 33
Dependent Claim
35 words
The apparatus of claim 28, wherein the signal voltage comprises more than one independent parts each of which is to be given to each one of the divided sections(214A, 214B, 214C) of the apparatus independently.
Claim 34
Dependent Claim
20 words
The apparatus of claim 28, wherein each of the divided sections(214A, 214B, 214C) has portions overlapping with adjacent divided sections.
Claim 35
Independent Claim
326 words
An apparatus for ion recording of an image information on a recording paper, comprising: a recording medium(203) on which an electrostatic latent image corresponding to the image information is to be formed; pre-charging corona ion generator means(204) for charging the recording medium(203) uniformly; and corona ion generator means(214) for forming the electrostatic latent image on the recording medium(203) by charging the recording medium(203), comprising a plurality of ion generation means(214), each of which is corresponding to a picture element of the electrostatic latent image and is comprising: corona ion generation electrode means(218) having a gap(220) for generating corona ions in the gap(220), the corona ions being accelerated toward the recording medium(203) by the one voltage level given to the recording medium(203) by the pre-charging corona ion generator means(204); induction electrode means(219) for inducing electric field for generating corona ions in the gap(220) of the corona ion generation electrode means(218); corona ion control electrode means(216) having corona ion passing hole(216a) for controlling flows of corona ions generated by the corona ion generation electrode means(218) and passing through the corona ion passing hole(216a); alternating voltage source means(223) for applying alternating voltage to cause corona ion generation at the corona ion generation electrode means(218) between the corona ion generation electrode means(218) and the induction electrode means(219); and driving IC means(224, 227) for applying signal voltage to the corona ion control electrode means(216); characterized in that the signal voltage being significantly less than a peak voltage of the alternating voltage, according to which the flow of corona ions is controlled by the corona ion control electrode means(216); and that the pre-charging corona ion generator means (204) charges the recording medium(203) uniformly at a pre-charge voltage level in a first polarity while the corona ion generator means(214) charges the recording medium(203) to a recording voltage level in a second polarity which is opposite of the first polarity with flows of corona ions corresponding to the electrostatic latent image to be formed.
Claim 36
Independent Claim
326 words
An apparatus for ion recording of an image information on a recording paper, comprising: a recording medium(203) on which an electrostatic latent image corresponding to the image information is to be formed; pre-charging corona ion generator means(204) for charging the recording medium(203) uniformly; and corona ion generator means(214) for forming the electrostatic latent image on the recording medium(203) by charging the recording medium(203), comprising a plurality of ion generation means(214), each of which is corresponding to a picture element of the electrostatic latent image and is comprising: corona ion generation electrode means(218) having a gap(220) for generating corona ions in the gap(220), the corona ions being accelerated toward the recording medium(203) by the one voltage level given to the recording medium(203) by the pre-charging corona ion generator means(204); induction electrode means(219) for inducing electric field for generating corona ions in the gap(220) of the corona ion generation electrode means(218); corona ion control electrode means(216) having corona ion passing hole(216a) for controlling flows of corona ions generated by the corona ion generation electrode means(218) and passing through the corona ion passing hole(216a); alternating voltage source means(223) for applying alternating voltage to cause corona ion generation at the corona ion generation electrode means(218) between the corona ion generation electrode means(218) and the induction electrode means(219); and driving IC means(224, 227) for applying signal voltage to the corona ion control electrode means(216); characterized in that the signal voltage being significantly less than a peak voltage of the alternating voltage, according to which the flow of corona ions is controlled by the corona ion control electrode means(216); and that the pre-charging corona ion generator means (204) charges the recording medium(203) uniformly at a pre-charge voltage level in a first polarity while the corona ion generator means(214) charges the recording medium(203) to a recording voltage level in a second polarity which is opposite of the first polarity with flows of corona ions corresponding to the electrostatic latent image to be formed.
Claim 37
Dependent Claim
40 words
The apparatus of claim 31, wherein the alternating voltage and the signal voltage have periods significantly longer than a time taken by the flows of corona ions to move from the corona ion generation electrode means(218) to the recording medium(203).
Claim 38
Dependent Claim
89 words
The apparatus of claim 31, wherein the pre-charging corona ion generator means(204) comprises: pre-charging corona ion generation electrode means(208) having a gap(207) for generating corona ions in the gap(207), pre-charging induction electrode means(209) for inducing electric field for generating corona ions in the gap(207) of the pre-charging corona ion generation electrode means(208); and pre-charging alternating voltage source means(210) for applying alternating voltage to cause corona ion generation at the pre-charging corona ion generation electrode means(208) between the pre-charging corona ion generation electrode means(208) and the pre-charging induction electrode means(209).
Claim 39
Dependent Claim
49 words
The apparatus of claim 33, further comprising insulative substrate(206) on which the pre-charging corona ion generation electrode means(208) and the pre-charging induction electrode means(209) are mounted, and wherein the gap(207) in the pre-charging corona ion generation electrode means(208) has a width wider than a thickness of the insulative substrate(206).
Claim 40
Dependent Claim
26 words
The apparatus of claim 31, wherein the pre-charging corona ion generator means(204) and the corona ion generator means(214) are arranged together to form a single entity.
Claim 41
Dependent Claim
38 words
The apparatus of claim 31, wherein the gap(220) of the corona ion generation electrode means(218) is an elongated slit which extends over more than one of the corona ion passing holes(216a) of the corona ion control electrode means(216).
Claim 42
Dependent Claim
21 words
The apparatus of claim 31, wherein the recording medium(203) moves with respect to the corona ion generator means(214) at variable speed.
Claim 43
Dependent Claim
19 words
The apparatus of claim 31, wherein the recording medium(203) moves with respect to the corona ion generator means(214) intermittently.
Claim 44
Dependent Claim
22 words
The apparatus of claim 33, wherein the recording medium(203) moves with respect to the pre-charging corona ion generator means(204) at variable speed.
Claim 45
Dependent Claim
20 words
The apparatus of claim 33, wherein the recording medium(203) moves with respect to the pre-charging corona ion generator means(204) intermittently.
Claim 46
Dependent Claim
159 words
The apparatus of claim 31, further comprising: means(311) for developing the electrostatic latent image with developer(313) into developed image on the recording medium(203, 303); and means(318) for transferring the developed image onto the recording paper electrostatically; and wherein first residual developer remaining on the recording medium after the transfer of the developed image by the transferring means in previous recording inside the electrostatic latent image for next recording is charged to one of the pre-charge voltage level and the recording voltage level by one of the pre-charging corona ion generator means(204) and the corona ion generator means(214), whereas second residual developer remaining on the recording medium after the transfer of the developed image by the transferring means in previous recording outside the electrostatic latent image for next recording is charged to another one of the pre-charge voltage level and the recording voltage level by another one of the pre-charging corona ion generator means(204) and the corona ion generator means(214).
Claim 47
Dependent Claim
93 words
The apparatus of claim 41, wherein the developing means(311) is biased to a voltage level between the pre-charge voltage level and the recording voltage level, and wherein the developer(313) is in the first polarity of the pre-charge voltage level, such that the developer(313) moves from the developing means(311) to the electrostatic latent image on the recording medium(203, 303) to develop the electrostatic latent image, while both of the first and second residual developers moved from the recording medium(203, 303) to the developing means(311) so as to be cleaned off the recording medium(203, 303).
Claim 48
Dependent Claim
37 words
The apparatus of claim 31, wherein each of the ion generation means(214) further comprises barrier electrode means(221), placed inside the gap(220) in the corona ion generation electrode means(218), for cutting off unnecessary electric field inside the gap(220).
Claim 49
Dependent Claim
30 words
The apparatus of claim 43, wherein the barrier electrode means(221) has a width greater than a diameter of the corona ion passing hole(216a) of the corona ion control electrode means(216).
Claim 50
Dependent Claim
30 words
The apparatus of claim 43, wherein the barrier electrode means(221) has a width less than a diameter of the corona ion passing hole(216a) of the corona ion control electrode means(216).
Claim 51
Dependent Claim
38 words
The apparatus of claim 43, further comprising bias voltage source means(222) for applying a common bias voltage to the corona ion generation electrode means(218) and the barrier electrode means(221) with respect to the corona ion control electrode means(216).
Claim 52
Dependent Claim
76 words
The apparatus of claim 31, wherein the signal voltage comprises two distinct voltage levels corresponding to turning on and off of the flow of corona ions, and which further comprises bias voltage source means(222) for applying bias voltage between the corona ion generation electrode means(218) and the induction electrode means(219) with respect to the corona ion control electrode means(216), where the bias voltage is equal to one of the two distinct levels of the signal voltage.
Claim 53
Dependent Claim
46 words
The apparatus of claim 31, further comprising insulative substrate(217) on which the corona ion generation electrode means(218) and the induction electrode means(219) are mounted, and wherein the gap(220) in the corona ion generation electrode means(218) has a width wider than a thickness of the insulative substrate(217).
Claim 54
Dependent Claim
24 words
The apparatus of claim 31, wherein the alternating voltage has a frequency which is an integer multiple of a frequency of the signal voltage.
Claim 55
Dependent Claim
19 words
The apparatus of claim 31, wherein the alternating voltage source means(223) and the driving IC means(224, 227) are synchronized.
Claim 56
Dependent Claim
33 words
The apparatus of claim 31, wherein the alternating voltage has a peak voltage significantly greater than that required for generating sufficient amount of the corona ions needed in recording the electrostatic latent image.
Claim 57
Dependent Claim
29 words
The apparatus of claim 31, wherein the corona ion generation electrode means(218), the induction electrode means(219), and the driving IC means(224, 227) are mounted on a single insulative substrate(217).
Claim 58
Dependent Claim
39 words
The apparatus of claim 31, wherein the corona ion control electrode means(216) comprises a pair of upper electrode means(241) closer to the corona ion generation electrode means(218) and lower electrode means(242) farther from the corona ion generation electrode means(218).
Claim 59
Dependent Claim
19 words
The apparatus of claim 53, wherein the upper electrode means(241) of the corona ion control electrode means(216) is grounded.
Claim 60
Dependent Claim
38 words
The apparatus of claim 31, wherein the corona ion generation electrode means(218) and the corona ion control electrode means(216) are separated by a distance greater than a width of the gap(220) in the corona ion generation electrode means(218).
Claim 61
Dependent Claim
37 words
The apparatus of claim 31, further comprising acceleration voltage source means(222) for applying an acceleration voltage to accelerate the flow of corona ions between the corona ion generation electrode means(218) and the corona ion control electrode means(216).
Claim 62
Dependent Claim
49 words
The apparatus of claim 31, further comprising insulative substrate(217) on which the corona ion generation electrode means(218) is mounted, and wherein an angle between edges of the corona ion generation electrode means(218) facing the gap(220) and a face of the insulative substrate(217) facing the gap(220) is less than 90°.
Claim 63
Dependent Claim
72 words
The apparatus of claim 57, wherein each of the ion generation means(214) further comprises barrier electrode means(221), placed inside the gap(220) in the corona ion generation electrode means(218) and also mounted on the insulative substrate(217), for cutting off unnecessary electric field inside the gap(220), and wherein an angle between edges of the barrier electrode means(221) facing the gap(220) and a face of the insulative substrate(217) facing the gap(220) is less than 90°.
Claim 64
Dependent Claim
26 words
The apparatus of claim 31, wherein the corona ion generator means(214) is divided into more than one divided sections(214A, 214B, 214C) which can be activated independently.
Claim 65
Dependent Claim
38 words
The apparatus of claim 59, wherein the signal voltage comprises more than one independent parts each of which is to be given to each one of the divided sections(214A, 214B, 214C) of the corona ion generator means(214) independently.
Claim 66
Dependent Claim
21 words
The apparatus of claim 59, wherein each of the divided sections (214A, 214B, 214C) has portions overlapping with adjacent divided sections.
Claim 67
Independent Claim
75 words
An apparatus for ion recording, comprising: a recording medium(203) on which an electrostatic latent image is to be formed; and corona ion generator means(214) for forming the electrostatic latent image on the recording medium(203) by charging the recording medium(203); characterized in that the corona ion generator means(214) charges the recording medium(203) with flows of corona ions corresponding to the electrostatic latent image to be formed; and that the recording medium(203) is movable at variable speed.
Claim 68
Independent Claim
75 words
An apparatus for ion recording, comprising: a recording medium(203) on which an electrostatic latent image is to be formed; and corona ion generator means(214) for forming the electrostatic latent image on the recording medium(203) by charging the recording medium(203); characterized in that the corona ion generator means(214) charges the recording medium(203) with flows of corona ions corresponding to the electrostatic latent image to be formed; and that the recording medium(203) is movable at variable speed.
Claim 69
Independent Claim
68 words
An apparatus for ion recording, comprising: a recording medium(203) on which an electrostatic latent image is to be formed; and corona ion generator means(214) for forming the electrostatic latent image on the recording medium(203); characterized in that the corona ion generator means(214) charges the recording medium(203) with flows of corona ions corresponding to the electrostatic latent image to be formed; and that the recording medium(203) is movable intermittently.
Claim 70
Independent Claim
68 words
An apparatus for ion recording, comprising: a recording medium(203) on which an electrostatic latent image is to be formed; and corona ion generator means(214) for forming the electrostatic latent image on the recording medium(203); characterized in that the corona ion generator means(214) charges the recording medium(203) with flows of corona ions corresponding to the electrostatic latent image to be formed; and that the recording medium(203) is movable intermittently.
Claim 71
Independent Claim
196 words
An apparatus for ion recording, comprising: a recording medium(203, 303) on which an electrostatic latent image is to be formed; means(311) for developing the electrostatic latent image with developer(313) into developed image on the recording medium(203, 303); means(318) for transferring the developed image onto the recording paper electrostatically; and corona ion generator means(214, 314) for forming the electrostatic latent image on the recording medium(203, 303) by charging the recording medium(203, 303); characterized in that the corona ion generator means(214, 314) charges the recording medium(203, 303) with flows of corona ions corresponding to the electrostatic latent image to be formed, such that first residual developer remaining on the recording medium after the transfer of the developed image by the transferring means in previous recording inside the electrostatic latent image for next recording is charged to one of two different voltage levels by the corona ion generator means(214, 314), whereas second residual developer remaining on the recording medium after the transfer of the developed image by the transferring means in previous recording outside the electrostatic latent image for next recording is charged to another one of the two different voltage levels by the corona ion generator means(214, 314).
Claim 72
Independent Claim
196 words
An apparatus for ion recording, comprising: a recording medium(203, 303) on which an electrostatic latent image is to be formed; means(311) for developing the electrostatic latent image with developer(313) into developed image on the recording medium(203, 303); means(318) for transferring the developed image onto the recording paper electrostatically; and corona ion generator means(214, 314) for forming the electrostatic latent image on the recording medium(203, 303) by charging the recording medium(203, 303); characterized in that the corona ion generator means(214, 314) charges the recording medium(203, 303) with flows of corona ions corresponding to the electrostatic latent image to be formed, such that first residual developer remaining on the recording medium after the transfer of the developed image by the transferring means in previous recording inside the electrostatic latent image for next recording is charged to one of two different voltage levels by the corona ion generator means(214, 314), whereas second residual developer remaining on the recording medium after the transfer of the developed image by the transferring means in previous recording outside the electrostatic latent image for next recording is charged to another one of the two different voltage levels by the corona ion generator means(214, 314).
Claim 73
Dependent Claim
90 words
The apparatus of claim 64, wherein the developing means(311) is biased to a voltage level between the two different voltage levels, and wherein the developer(313) has a polarity opposite to that of the electrostatic latent image, such that the developer(313) moves from the developing means(311) to the electrostatic latent image on the recording medium(203, 303) to develop the electrostatic latent image, while both of the first and second residual developers moved from the recording medium(203, 303) to the developing means(311) so as to be cleaned off the recording medium(203, 303).
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.