Patent US4377629A successfully refreshed from Google Patents.
US4377629A
Expired / Lapsed
US
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Layered charge carrier member and method of forming image using same
Assignee: Konica Minolta Inc
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Filing: 1981-03-17
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Granted: 1983-03-22
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Expires: 2001-03-17
Abstract
Abstract A charge carrier member comprising an intermediate layer composed of a heat-resistant resin containing electrically conductive material, a charge carrier layer composed of a heat-resistant resin, and a support member. The support member is an electrically conductive support member or consists of an electrically conductive member which is provided on an insulating member. A method of forming a copy image which comprises a step for forming an electrostatic latent image on the charge carrier member, a step for converting the electrostatic latent image into a toner image using a developing agent, and a step for transferring the toner image onto a transfer medium.
Inventors
- 👤 Noriyoshi Tarumi
- 👤 Kiyoshi Kimura
- 👤 Haruo Iwahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:45
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/05; G03G5/0528; G03G5/0557; G03G5/0571; G03G5/0202; G03G5/0205; G03G5/0211; G03G5/0217; G03G5/0532; G03G5/0539; G03G5/0582; G03G5/0596; G03G5/10; G03G5/14; G03G5/142; G03G5/144; Y; Y10; Y10S; Y10S430/00; Y10S430/001; Y10S430/105
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
87 words
A charge carrier member comprising an intermediate layer which is formed on a support member, the intermediate layer being composed of a heat-resistant first resin containing electrically conductive material, and a charge carrier layer composed of a heat-resistant second resin formed on the intermediate layer and wherein said first resin is selected from a fluorine-containing resin, a polyimide resin, a polyimide-amide resin, a polyarylsulfone resin and a polyphenylene sulfite resin and wherein said second resin is selected from the group consisting of said first resin and polyamide.
Claim 2
Dependent Claim
87 words
A charge carrier member comprising an intermediate layer which is formed on a support member, the intermediate layer being composed of a heat-resistant first resin containing electrically conductive material, and a charge carrier layer composed of a heat-resistant second resin formed on the intermediate layer and wherein said first resin is selected from a fluorine-containing resin, a polyimide resin, a polyimide-amide resin, a polyarylsulfone resin and a polyphenylene sulfite resin and wherein said second resin is selected from the group consisting of said first resin and polyamide.
Claim 3
Dependent Claim
16 words
A charge carrier member according to claim 1, wherein the electrically conductive material is carbon black.
Claim 4
Dependent Claim
18 words
A charge carrier member according to claim 1, wherein the support member is an electrically conductive support member.
Claim 5
Dependent Claim
27 words
A charge carrier member according to claim 3, wherein the electrically conductive support member consists of an electrically conductive member which is provided on an insulating member.
Claim 6
Dependent Claim
15 words
A charge carrier member according to claim 4, wherein the electrically conductive member is aluminum.
Claim 7
Dependent Claim
17 words
A charge carrier member according to claim 5, wherein the surface of aluminum is treated with boehmite.
Claim 8
Dependent Claim
18 words
A charge carrier member according to claim 1, wherein the charge carrier layer further contains a photoconductive material.
Claim 9
Dependent Claim
17 words
A charge carrier member according to claim 7, wherein the photoconductive material is an inorganic photoconductive material.
Claim 10
Dependent Claim
28 words
A charge carrier member according to claim 7 or 8, wherein the photoconductive material is CdS, CdSSe, CdSe, ZnSe, ZnCdS, TiO 2 , ZnO or CdS.CdCO 3 .
Claim 11
Dependent Claim
82 words
A charge carrier member comprising an intermediate layer which is formed on a support member, the intermediate layer being composed of a heat-resistant first resin containing electrically conductive material, and a charge carrier layer composed of a heat-resistant second resin formed on the intermediate layer and wherein said second resin is selected from a fluorine-containing resin, a polyimide resin, a polyimide-amide resin, a polyarylsulfone resin, a polyamide resin and a polyphenylene sulfite resin and wherein said first resin is a polyamide resin.
Claim 12
Dependent Claim
82 words
A charge carrier member comprising an intermediate layer which is formed on a support member, the intermediate layer being composed of a heat-resistant first resin containing electrically conductive material, and a charge carrier layer composed of a heat-resistant second resin formed on the intermediate layer and wherein said second resin is selected from a fluorine-containing resin, a polyimide resin, a polyimide-amide resin, a polyarylsulfone resin, a polyamide resin and a polyphenylene sulfite resin and wherein said first resin is a polyamide resin.
Claim 13
Dependent Claim
18 words
The charge carrier member of claim 1 or 10 wherein said intermediate layer is at least 5μ thick.
Claim 14
Dependent Claim
44 words
A method of forming a copy image which comprises forming an electrostatic latent image on the charge carrier member of claim 1, converting the electrostatic latent image into a toner image using a developing agent, and transferring the toner image onto a transfer medium.
Claim 15
Dependent Claim
36 words
A method of forming a copy image according to claim 12, wherein the heat-resistant resin is a fluorine-containing resin, a polyimide resin, a polyamide resin, a polyimideamide resin, a polyarylsulfone resin or a polyphenylene sulfite resin.
Claim 16
Dependent Claim
19 words
A method of forming a copy image according to claim 12, wherein the electrically conductive material is carbon black.
Claim 17
Dependent Claim
21 words
A method of forming a copy image according to claim 12, wherein the support member is an electrically conductive support member.
Claim 18
Dependent Claim
21 words
A method of forming a copy image according to claim 12, wherein the charge carrier layer further contains a photoconductive material.
Claim 19
Dependent Claim
20 words
A method of forming a copy image according to claim 16, wherein the photoconductive material is an inorganic photoconductive material.
Claim 20
Dependent Claim
31 words
A method of forming a copy image according to claim 16 or 17, wherein the photoconductive material is CdS, CdSSe, CdSe, ZnSe, ZnCdS, TiO 2 , ZnO or CdS.CdCO 3 .
Claim 21
Dependent Claim
29 words
A method of forming a copy image according to claim 12, wherein the surface of the charge carrier member is uniformly charged prior to forming the electrostatic latent image.
Claim 22
Dependent Claim
24 words
A method of forming a copy image according to claim 12, wherein the developing agent is a one-component-type developing agent without containing a carrier.
Claim 23
Dependent Claim
18 words
A method of forming a copy image according to claim 20, wherein the developing agent has electrical conductivity.
Claim 24
Dependent Claim
22 words
A method of forming a copy image according to claim 12, 20 or 21, wherein the developing agent has a parting property.
Claim 25
Dependent Claim
22 words
A method of forming a copy image according to claim 12, 20, or 21, wherein the developing agent contains a styrene-type polymer.
Claim 26
Dependent Claim
19 words
A method of forming a copy image according to claim 12, wherein the transfer is a tacky image transfer.
Claim 27
Dependent Claim
21 words
A method of forming a copy image according to claim 12, wherein the transfer is to transfer and fix the image.
Claim 28
Dependent Claim
19 words
A method of forming copy image according to claim 12, wherein the transfer medium is a tacky transfer medium.
Claim 29
Dependent Claim
19 words
A method of forming a copy image according to claim 22 wherein the developing agent contains a styrene-type polymer.
Claim 30
Dependent Claim
43 words
A method of forming a copy image comprising forming an electrostatic latent image on the charge carrier member of claim 10, converting said electrostatic latent image into a toner image using a developing agent and transferring said toner image onto a transfer medium.
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) | 1986-03-21 | 1986-09-20 | 1987-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-21 | 1990-09-20 | 1991-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-21 | 1994-09-20 | 1995-03-22 | $7700.00 | Window Closed / Lapsed |