US4831394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode assembly and image recording apparatus using same
Assignee: Canon Inc
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Filing: 1987-12-21
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Granted: 1989-05-16
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Expires: 2007-12-21
Abstract
Abstract A recording electrode assembly which is relatively moved with respect to a recording medium, for depositing onto the recording medium electrically conductive and magnetic toner magnetically conveyed, the assembly includes an array of recording electrodes, electrically isolated from each other, adapted to be supplied with an electric voltage representing information to be recorded, wherein the array is adapted to extend transversely with a direction of the relative movement of the recording material; a supporting member for supporting the array of the recording electrodes; and a conductive member, electrically isolated from the recording electrodes, for providing a surface member at an upstream of the recording electrodes with respect to a direction of movement of the toner magnetically conveyed.
Inventors
- 👤 Toshihiko Ochiai
- 👤 Yujiro Ando
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:00
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/34; G03G15/344; G03G15/348; G03G2217/00; G03G2217/0008; G03G2217/0016
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
119 words
A recording electrode assembly, relatively movable with respect to a recording medium, for depositing onto the recording medium electrically conductive and magnetic toner having been magnetically conveyed, said assembly comprising: an array of recording electrodes electrically isolated from each other, said electrodes adapted to be supplied with an electric voltage representing information to be recorded, wherein the array of recording electrodes is adapted to extend transversely with a direction of the relative movement of the recording material; a supporting member for supporting said array of recording electrodes; and a conductive member, electrically isolated from said recording electrodes, for providing a surface member upstream of said recording electrodes with respect to a direction of movement of the magnetically conveyed toner.
Claim 2
Dependent Claim
119 words
A recording electrode assembly, relatively movable with respect to a recording medium, for depositing onto the recording medium electrically conductive and magnetic toner having been magnetically conveyed, said assembly comprising: an array of recording electrodes electrically isolated from each other, said electrodes adapted to be supplied with an electric voltage representing information to be recorded, wherein the array of recording electrodes is adapted to extend transversely with a direction of the relative movement of the recording material; a supporting member for supporting said array of recording electrodes; and a conductive member, electrically isolated from said recording electrodes, for providing a surface member upstream of said recording electrodes with respect to a direction of movement of the magnetically conveyed toner.
Claim 3
Dependent Claim
17 words
An assembly according to claim 1, wherein said electrodes are made of electrically conductive and magnetic material.
Claim 4
Dependent Claim
17 words
An assembly according to claim 1, wherein the electrodes are made of electrically conductive and non-magnetic material.
Claim 5
Dependent Claim
19 words
An assembly according to claim 3, wherein a magnetic member is disposed between the electrodes and said supporting member.
Claim 6
Dependent Claim
18 words
An assembly according to claim 2, wherein said electrodes are projected from a surface of said supporting member.
Claim 7
Dependent Claim
18 words
An assembly according to claim 1, wherein said array of electrodes is constituted by a flexible printed board.
Claim 8
Dependent Claim
26 words
An assembly according to claim 6, wherein said array of electrodes is disposed along a surface of said supporting member with a spacer member interposed therebetween.
Claim 9
Dependent Claim
14 words
An assembly according to claim 7, wherein the spacer member is of magnetic material.
Claim 10
Dependent Claim
21 words
An assembly according to claim 6, wherein the printed board defines continuous slot or perforations along said array of the electrodes.
Claim 11
Dependent Claim
130 words
A recording electrode assembly, relatively moveable with respect to recording medium, for depositing onto the recording medium electrically conductive and magnetic toner having been magnetically conveyed, said assembly comprising: an array of recording electrodes electrically isolated from each other, said electrodes adapted to be supplied with an electric voltage representing information to be recorded, wherein the array of recording electrodes is adapted to extend transversely with a direction of the relative movement of the recording material; a sleeve of non-magnetic material for supporting on its outer surface said array of recording electrodes; a conductive member, electrically isolated from said recording electrodes, for providing a surface member upstream of said recording electrodes with respect to a direction of movement of the magnetically conveyed toner; and magnetic means disposed inside said sleeve.
Claim 12
Dependent Claim
130 words
A recording electrode assembly, relatively moveable with respect to recording medium, for depositing onto the recording medium electrically conductive and magnetic toner having been magnetically conveyed, said assembly comprising: an array of recording electrodes electrically isolated from each other, said electrodes adapted to be supplied with an electric voltage representing information to be recorded, wherein the array of recording electrodes is adapted to extend transversely with a direction of the relative movement of the recording material; a sleeve of non-magnetic material for supporting on its outer surface said array of recording electrodes; a conductive member, electrically isolated from said recording electrodes, for providing a surface member upstream of said recording electrodes with respect to a direction of movement of the magnetically conveyed toner; and magnetic means disposed inside said sleeve.
Claim 13
Dependent Claim
19 words
An assembly according to claim 10, wherein said magnetic means includes a rotatable magnet having magnetic poles arranged circumferentially.
Claim 14
Dependent Claim
18 words
An assembly according to claim 10, wherein said electrodes are projected from a surface of said supporting member.
Claim 15
Dependent Claim
19 words
An assembly according to claim 10, wherein said array of recording electrodes is constituted by a flexible printed board.
Claim 16
Dependent Claim
21 words
An assembly according to claim 13, wherein the printed board defines continuous slot or perforations along said array of the electrodes.
Claim 17
Dependent Claim
155 words
An image recording apparatus, comprising: a recording electrode assembly, capable of being relatively moved with respect to a recording medium, for depositing onto the recording medium electrically conductive and magnetic toner magnetically conveyed, said assembly including an array of recording electrodes electrically isolated from each other, each electrode adapted to be supplied with an electric voltage representing information to be recorded, wherein the array is adapted to extend transversely with a direction of the relative movement of the recording material; a supporting member for supporting said array of the recording electrodes; a conductive member, electrically isolated from said recording electrodes, for providing a surface member upstream of said recording electrode with respect to a direction of movement of the toner; magnetic means disposed across said supporting member from said array of electrodes, for supplying the toner to said array of the electrodes; and a recording medium disposed opposed closely to said array of the electrodes.
Claim 18
Dependent Claim
155 words
An image recording apparatus, comprising: a recording electrode assembly, capable of being relatively moved with respect to a recording medium, for depositing onto the recording medium electrically conductive and magnetic toner magnetically conveyed, said assembly including an array of recording electrodes electrically isolated from each other, each electrode adapted to be supplied with an electric voltage representing information to be recorded, wherein the array is adapted to extend transversely with a direction of the relative movement of the recording material; a supporting member for supporting said array of the recording electrodes; a conductive member, electrically isolated from said recording electrodes, for providing a surface member upstream of said recording electrode with respect to a direction of movement of the toner; magnetic means disposed across said supporting member from said array of electrodes, for supplying the toner to said array of the electrodes; and a recording medium disposed opposed closely to said array of the electrodes.
Claim 19
Dependent Claim
39 words
An apparatus according to claim 15, wherein said recording medium includes a conductive layer and an insulating surface layer, wherein said conductive member and the conductive layer of the recording medium are maintained at a substantially equal electric potential.
Claim 20
Dependent Claim
18 words
An apparatus according to claim 15, the recording medium and the toner particles move in the same direction.
Claim 21
Dependent Claim
19 words
An apparatus according to claim 15, wherein said array of the electrodes is constituted by a flexible print board.
Claim 22
Dependent Claim
26 words
An apparatus according to claim 15, wherein said array of electrodes is disposed along a surface of said supporting member with a spacer member interposed therebetween.
Claim 23
Dependent Claim
21 words
An apparatus according to claim 19, wherein the printed board defines continuous slot or perforations along said array of the electrodes.
Claim 24
Dependent Claim
19 words
An apparatus according to claim 15, wherein said magnetic means includes a magnet roller rotatable to convey the toner.
Claim 25
Dependent Claim
157 words
An image recording apparatus, comprising: a recording electrode assembly, capable of being relatively moved with respect to a recording medium, for depositing onto the recording medium electrically conductive and magnetic toner magnetically conveyed, said assembly including an array of recording electrodes electrically isolated from each other, each electrode adapted to be supplied with an electric voltage representing information to be recorded, wherein the array is adapted to extend transversely with a direction of the relative movement of the recording material; a sleeve for supporting said array of the recording electrodes on its outer surface; a conductive member, electrically isolated from said recording electrodes, for providing a surface member upstream of said recording electrode with respect to a direction of movement of the toner; magnetic means disposed within said sleeve from said array of electrodes, for supplying the toner to said array of the electrodes; and a recording medium disposed opposed closely to said array of the electrodes.
Claim 26
Dependent Claim
157 words
An image recording apparatus, comprising: a recording electrode assembly, capable of being relatively moved with respect to a recording medium, for depositing onto the recording medium electrically conductive and magnetic toner magnetically conveyed, said assembly including an array of recording electrodes electrically isolated from each other, each electrode adapted to be supplied with an electric voltage representing information to be recorded, wherein the array is adapted to extend transversely with a direction of the relative movement of the recording material; a sleeve for supporting said array of the recording electrodes on its outer surface; a conductive member, electrically isolated from said recording electrodes, for providing a surface member upstream of said recording electrode with respect to a direction of movement of the toner; magnetic means disposed within said sleeve from said array of electrodes, for supplying the toner to said array of the electrodes; and a recording medium disposed opposed closely to said array of the electrodes.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-15 | 1992-11-14 | 1993-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-15 | 1996-11-14 | 1997-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-15 | 2000-11-14 | 2001-05-16 | $7700.00 | Window Closed / Lapsed |