US5563690A
Expired / Lapsed
US
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Developing sleeve having an outer ceramic layer developing device for developing electrostatic latent images, and image-forming apparatus
Assignee: Canon Inc
•
Filing: 1994-05-31
•
Granted: 1996-10-08
•
Expires: 2014-05-31
Abstract
Abstract A developing sleeve used in a developing device of an electrophotographic apparatus is composed of a sleeve base and an electrodeposition coating formed on the surface of the sleeve base. The electrodeposition coating contains an electrodepositable resin and an electroconductivity-controlling powdery matter, which can be a powdery ceramic, with or without a powdery metal. A developing device for developing an electrostatic latent image and an image-forming apparatus including this developing sleeve are disclosed.
Inventors
- 👤 Keisuke Hasegawa
- 👤 Keishi Ohsawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:07
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/08; G03G15/0806; G03G15/0818; G03G2215/00; G03G2215/08; G03G2215/0855; G03G2215/0858; G03G2215/0861
Claims Analysis
Total Claims: 104
Claim 1
Independent Claim
52 words
A developing sleeve comprising a sleeve base and an electrodeposition coating film formed on the surface thereof, wherein the electrodeposition coating film has a thickness ranging from 7 to 15 μm, and contains an electrodepositable resin and an electroconductivity-controlling powdery matter having an average particle diameter ranging from 0.1 to 10.0 μm.
Claim 2
Dependent Claim
52 words
A developing sleeve comprising a sleeve base and an electrodeposition coating film formed on the surface thereof, wherein the electrodeposition coating film has a thickness ranging from 7 to 15 μm, and contains an electrodepositable resin and an electroconductivity-controlling powdery matter having an average particle diameter ranging from 0.1 to 10.0 μm.
Claim 3
Dependent Claim
16 words
The developing sleeve according to claim 1, wherein the electrodepositable resin comprises a low-temperature curing resin.
Claim 4
Dependent Claim
34 words
The developing sleeve according to claim 1, wherein the electrodepositable resin comprises one or more of the resins selected from the group of acrylic-melamine resins, acrylic resins, epoxy resins, urethane resins, and alkyd resins.
Claim 5
Dependent Claim
16 words
The developing sleeve according to claim 1, wherein the electrodeposition coating film contains a powdery ceramic.
Claim 6
Dependent Claim
22 words
The developing sleeve according to claim 4, wherein the powdery ceramic has an average particle diameter ranging from 0.3 to 3.0 μm.
Claim 7
Dependent Claim
42 words
The developing sleeve according to claim 4, wherein the electrodeposition coating film is formed by electrodeposition of an electrodeposition paint prepared by mixing 5 to 20 parts by weight of the powdery ceramic with 100 parts by weight of an electrodepositable resin.
Claim 8
Dependent Claim
27 words
The developing sleeve according to claim 4, wherein the electrodeposition coating film contains the co-deposited powdery ceramic at a content ranging from 5 to 50% by weight.
Claim 9
Dependent Claim
27 words
The developing sleeve according to claim 4, wherein the electrodeposition coating film contains the co-deposited powdery ceramic at a content ranging from 20 to 40% by weight.
Claim 10
Dependent Claim
23 words
The developing sleeve according to claim 4, wherein the sleeve base comprises a sleeve-shaped metal member and an oxidation coating film formed thereon.
Claim 11
Dependent Claim
24 words
The developing sleeve according to claim 4, wherein the sleeve base comprises a sleeve-shaped metal member and a chemical conversion coating film formed thereon.
Claim 12
Dependent Claim
27 words
The developing sleeve according to claim 4, wherein the sleeve base comprises a sleeve-shaped non-metal member, a catalyst treatment layer, and a metal-plated coating layer formed thereon.
Claim 13
Dependent Claim
17 words
The developing sleeve according to claim 11, wherein the non-metal member is formed from a plastic material.
Claim 14
Dependent Claim
36 words
The developing sleeve according to claim 11, wherein the non-metal member is formed from one or more resins selected from the group of ABS resins, CF/ABS resins, modified PPE resins, modified PPO resins, and GF/PC resins.
Claim 15
Dependent Claim
24 words
The developing sleeve according to claim 4, wherein the electrodeposition coating film has a volume resistivity ranging from 10 4 to 10 13 Ω•cm.
Claim 16
Dependent Claim
23 words
The developing sleeve according to claim 4, wherein the electrodeposition coating film has a volume resistivity ranging from 10 5 to10 12 Ω•cm.
Claim 17
Dependent Claim
17 words
The developing sleeve according to claim 4, wherein the electrodeposition coating film contains further a powdery metal.
Claim 18
Dependent Claim
34 words
The developing sleeve according to claim 16, wherein the powdery metal is composed of one or more of metals selected from the group of Ag, Co, Cu, Fe, Mn, Ni, Pd, Sn, and Te.
Claim 19
Dependent Claim
22 words
The developing sleeve according to claim 16, wherein the powdery metal has an average particle diameter ranging from 0.01 to 5.0 μm.
Claim 20
Dependent Claim
22 words
The developing sleeve according to claim 16, wherein the powdery metal has an average particle diameter ranging from 0.01 to 1.0 μm.
Claim 21
Dependent Claim
50 words
The developing sleeve according to claim 16, wherein the electrodeposition coating film is formed by electrodeposition of an electrodeposition paint prepared by mixing the powdery metal and the powdery ceramic in total amount of from 5 to 40 parts by weight with 100 parts by weight of an electrodepositable resin.
Claim 22
Dependent Claim
20 words
The developing sleeve according to claim 4, wherein the powdery ceramic is plated with a metal on the surface thereof.
Claim 23
Dependent Claim
18 words
The developing sleeve according to claim 21, wherein the metal for plating is selected from Ni, and Cu.
Claim 24
Dependent Claim
24 words
The developing sleeve according to claim 21, wherein the plated metal on the powdery ceramic has a thickness ranging from 0.05 to 0.9 μm.
Claim 25
Dependent Claim
24 words
The developing sleeve according to claim 21, wherein the plated metal on the powdery ceramic has a thickness ranging from 0.1 to 0.5 μm.
Claim 26
Dependent Claim
22 words
The developing sleeve according to claim 21, wherein the powdery ceramic has an average particle diameter ranging from 0.3 to 3.0 μm.
Claim 27
Dependent Claim
42 words
The developing sleeve according to claim 21, wherein the electrodeposition coating film is formed by electrodeposition of an electrodeposition paint prepared by mixing 5 to 20 parts by weight of the powdery ceramic with 100 parts by weight of an electrodepositable resin.
Claim 28
Dependent Claim
16 words
The developing sleeve according to claim 26, wherein the electrodepositable resin comprises a low-temperature curing resin.
Claim 29
Dependent Claim
34 words
The developing sleeve according to claim 26, wherein the electrodepositable resin comprises one or more of the resins selected from the group of acrylic-melamine resins, acrylic resins, epoxy resins, urethane resins, and alkyd resins.
Claim 30
Dependent Claim
27 words
The developing sleeve according to claim 21, wherein the electrodeposition coating film contains the co-deposited powdery ceramic at a content ranging from 5 to 50% by weight.
Claim 31
Dependent Claim
27 words
The developing sleeve according to claim 21, wherein the electrodeposition coating film contains the co-deposited powdery ceramic at a content ranging from 20 to 40% by weight.
Claim 32
Dependent Claim
23 words
The developing sleeve according to claim 21, wherein the sleeve base comprises a sleeve-shaped metal member and an oxidation coating film formed thereon.
Claim 33
Dependent Claim
24 words
The developing sleeve according to claim 21, wherein the sleeve base comprises a sleeve-shaped metal member and a chemical conversion coating film formed thereon.
Claim 34
Dependent Claim
27 words
The developing sleeve according to claim 21, wherein the sleeve base comprises a sleeve-shaped non-metal member, a catalyst treatment layer, and a metal-plated coating layer formed thereon.
Claim 35
Dependent Claim
17 words
The developing sleeve according to claim 33, wherein the non-metal member is formed from a plastic material.
Claim 36
Dependent Claim
36 words
The developing sleeve according to claim 33, wherein the non-metal member is formed from one or more resins selected from the group of ABS resins, CF/ABS resins, modified PPE resins, modified PPO resins, and GF/PC resins.
Claim 37
Dependent Claim
24 words
The developing sleeve according to claim 21, wherein the electrodeposition coating film has a volume resistivity ranging from 10 4 to 10 13 Ω•cm.
Claim 38
Dependent Claim
24 words
The developing sleeve according to claim 21, wherein the electrodeposition coating film has a volume resistivity ranging from 10 5 to 10 12 Ω•cm.
Claim 39
Dependent Claim
17 words
The developing sleeve according to claim 21, wherein the electrodeposition coating film contains further a powdery metal.
Claim 40
Dependent Claim
34 words
The developing sleeve according to claim 38, wherein the powdery metal is composed of one or more of metals selected from the group of Ag, Co, Cu, Fe, Mn, Ni, Pd, Sn, and Te.
Claim 41
Dependent Claim
22 words
The developing sleeve according to claim 38, wherein the powdery metal has an average particle diameter ranging from 0.01 to 5.0 μm.
Claim 42
Dependent Claim
22 words
The developing sleeve according to claim 38, wherein the powdery metal has an average particle diameter ranging from 0.01 to 1.0 μm.
Claim 43
Dependent Claim
50 words
The developing sleeve according to claim 38, wherein the electrodeposition coating film is formed by electrodeposition of an electrodeposition paint prepared by mixing the powdery metal and the powdery ceramic in total amount of from 5 to 40 parts by weight with 100 parts by weight of an electrodepositable resin.
Claim 44
Dependent Claim
81 words
A developing device for developing an electrostatic latent image, comprising a developing sleeve for holding a toner and delivering the toner to a developing section facing an image-holding member, the developing sleeve comprising a sleeve base and an electrodeposition coating film formed on the surface thereof, wherein the electrodeposition coating film has a thickness ranging from 7 to 15 μm, and contains an electrodeposition resin and an electroconductivity-controlling powdery matter having an average particle diameter ranging from 0.1 to 10.0 μm.
Claim 45
Dependent Claim
81 words
A developing device for developing an electrostatic latent image, comprising a developing sleeve for holding a toner and delivering the toner to a developing section facing an image-holding member, the developing sleeve comprising a sleeve base and an electrodeposition coating film formed on the surface thereof, wherein the electrodeposition coating film has a thickness ranging from 7 to 15 μm, and contains an electrodeposition resin and an electroconductivity-controlling powdery matter having an average particle diameter ranging from 0.1 to 10.0 μm.
Claim 46
Dependent Claim
16 words
The developing device according to claim 43, wherein the electrodepositable resin comprises a low-temperature curing resin.
Claim 47
Dependent Claim
34 words
The developing device according to claim 44, wherein the electrodepositable resin comprises one or more of the resins selected from the group of acrylic-melamine resins, acrylic resin, epoxy resin, urethane resins, and alkyd resins.
Claim 48
Dependent Claim
16 words
The developing device according to claim 43, wherein the electrodeposition coating film contains a powdery ceramic.
Claim 49
Dependent Claim
22 words
The developing device according to claim 46, wherein the powdery ceramic has an average particle diameter ranging from 0.3 to 3.0 μm.
Claim 50
Dependent Claim
42 words
The developing device according to claim 46, wherein the electrodeposition coating film is formed by electrodeposition of an electrodeposition paint prepared by mixing 5 to 20 parts by weight of the powdery ceramic with 100 parts by weight of an electrodepositable resin.
Claim 51
Dependent Claim
27 words
The developing device according to claim 46, wherein the electrodeposition coating film contains the co-deposited powdery ceramic at a content ranging from 5 to 50% by weight.
Claim 52
Dependent Claim
27 words
The developing device according to claim 46, wherein the electrodeposition coating film contains the co-deposited powdery ceramic at a content ranging from 20 to 40% by weight.
Claim 53
Dependent Claim
24 words
The developing device according to claim 46, wherein the electrodeposition coating film has a volume resistivity ranging from 10 4 to 10 13 Ωcm.
Claim 54
Dependent Claim
17 words
The developing device according to claim 46, wherein the electrodeposition coating film further contains a powdery metal.
Claim 55
Dependent Claim
35 words
The developing device according to claim 52, wherein the powdery metal is composed of one or more of metals selected from the group consisting of Ag, Co, Cu, Fe, Mn, Ni, Pd, Sn, and Te.
Claim 56
Dependent Claim
22 words
The developing device according to claim 52, wherein the powdery metal has an average particle diameter ranging from 0.01 to 5.0 μm.
Claim 57
Dependent Claim
22 words
The developing device according to claim 52, wherein the powdery metal has an average particle diameter ranging from 0.01 to 1.0 μm.
Claim 58
Dependent Claim
50 words
The developing device according to claim 52, wherein the electrodeposition coating film is formed by electrodeposition of an electrodeposition paint prepared by mixing the powdery metal and the powdery ceramic in total amount of from 5 to 40 parts by weight with 100 parts by weight of an electrodepositable resin.
Claim 59
Dependent Claim
20 words
The developing device according to claim 46, wherein the powdery ceramic is plated with a metal on the surface thereof.
Claim 60
Dependent Claim
23 words
The developing device according to claim 57, wherein the metal for plating is selected from the group consisting of Ag, Ni, and Cu.
Claim 61
Dependent Claim
24 words
The developing device according to claim 57, wherein the plated metal on the powdery ceramic has a thickness ranging from 0.05 to 0.9 μm.
Claim 62
Dependent Claim
24 words
The developing device according to claim 57, wherein the plated metal on the powdery ceramic has a thickness ranging from 0.1 to 0.5 μm.
Claim 63
Dependent Claim
22 words
The developing device according to claim 57, wherein the powdery ceramic has an average particle diameter ranging from 0.3 to 3.0 μm.
Claim 64
Dependent Claim
42 words
The developing device according to claim 57, wherein the electrodeposition coating film is formed by electrodeposition of an electrodeposition paint prepared by mixing 5 to 20 parts by weight of the powdery ceramic with 100 parts by weight of an electrodepositable resin.
Claim 65
Dependent Claim
27 words
The developing device according to claim 57, wherein the electrodeposition coating film contains the co-deposited powdery ceramic at a content ranging from 5 to 50% by weight.
Claim 66
Dependent Claim
27 words
The developing device according to claim 57, wherein the electrodeposition coating film contains the co-deposited powdery ceramic at a content ranging from 20 to 40% by weight.
Claim 67
Dependent Claim
24 words
The developing device according to claim 57, wherein the electrodeposition coating film has a volume resistivity ranging from 10 4 to 10 13 Ωcm.
Claim 68
Dependent Claim
24 words
The developing device according to claim 57, wherein the electrodeposition coating film has a volume resistivity ranging from 10 5 to 10 12 Ωcm.
Claim 69
Dependent Claim
17 words
The developing device according to claim 57, wherein the electrodeposition coating film contains further a powdery metal.
Claim 70
Dependent Claim
35 words
The developing device according to claim 67, wherein the powdery metal is composed of one or more of metals selected from the group consisting of Ag, Co, Cu, Fe, Mn, Ni, Pd, Sn, and Te.
Claim 71
Dependent Claim
22 words
The developing device according to claim 67, wherein the powdery metal has an average particle diameter ranging from 0.01 to 5.0 μm.
Claim 72
Dependent Claim
22 words
The developing device according to claim 67, wherein the powdery metal has an average particle diameter ranging from 0.01 to 1.0 μm.
Claim 73
Dependent Claim
50 words
The developing device according to claim 67, wherein the electrodeposition coating film is formed by electrodeposition of an electrodeposition paint prepared by mixing the powdery metal and the powdery ceramic in total amount of from 5 to 40 parts by weight with 100 parts by weight of an electrodepositable resin.
Claim 74
Dependent Claim
103 words
An image-forming apparatus comprising an image-holding member for holding an electrostatic latent image, and a developing device for developing the electrostatic latent image held on the image-holding member, the developing device comprising a developing sleeve for holding atoner and delivering the toner to a developing section facing to an image-holding member, the developing sleeve comprising a sleeve base and an electrodeposition coating film formed on the surface thereof, wherein the electrodeposition coating film has a thickness ranging from 7 to 15 μm, and contains an electrodepositable resin and an electrocontrolling powdery matter having an average particle diameter ranging from 0.1 to 10.0 μm.
Claim 75
Dependent Claim
103 words
An image-forming apparatus comprising an image-holding member for holding an electrostatic latent image, and a developing device for developing the electrostatic latent image held on the image-holding member, the developing device comprising a developing sleeve for holding atoner and delivering the toner to a developing section facing to an image-holding member, the developing sleeve comprising a sleeve base and an electrodeposition coating film formed on the surface thereof, wherein the electrodeposition coating film has a thickness ranging from 7 to 15 μm, and contains an electrodepositable resin and an electrocontrolling powdery matter having an average particle diameter ranging from 0.1 to 10.0 μm.
Claim 76
Dependent Claim
16 words
The image-forming apparatus according to claim 72, wherein the electrodepositable resin comprises a low-temperature curing resin.
Claim 77
Dependent Claim
35 words
The image-forming apparatus according to claim 72, wherein the electrodepositable resin comprises one or more of the resins selected from the group consisting of acrylic-melamine resins, acrylic resins, epoxy resins, urethane resins, and alkyd resins.
Claim 78
Dependent Claim
16 words
The image-forming apparatus according to claim 72, wherein the electrodeposition coating film contains a powdery ceramic.
Claim 79
Dependent Claim
22 words
The image-forming apparatus according to claim 75, wherein the powdery ceramic has an average particle diameter ranging from 0.3 to 3.0 μm.
Claim 80
Dependent Claim
41 words
The image-forming apparatus according to claim 75, wherein the electrodeposition coating film is formed by electrodeposition of an electrodeposition paint prepared by mixing 5 to 20 parts by weight of the powdery ceramic with parts by weight of an electrodepositable resin.
Claim 81
Dependent Claim
27 words
The image-forming apparatus according to claim 75, wherein the electrodeposition coating film contains the co-deposited powdery ceramic at a content ranging from 5 to 50% by weight.
Claim 82
Dependent Claim
27 words
The image-forming apparatus according to claim 75, wherein the electrodeposition coating film contains the co-deposited powdery ceramic at a content ranging from 20 to 40% by weight.
Claim 83
Dependent Claim
24 words
The image-forming apparatus according to claim 75, wherein the electrodeposition coating film has a volume resistivity ranging from 10 4 to 10 13 Ωcm.
Claim 84
Dependent Claim
24 words
The image-forming apparatus according to claim 75, wherein the electrodeposition coating film has a volume resistivity ranging from 10 5 to 10 12 Ωcm.
Claim 85
Dependent Claim
17 words
The image-forming apparatus according to claim 75, wherein the electrodeposition coating film further contains a powdery metal.
Claim 86
Dependent Claim
35 words
The image-forming apparatus according to claim 82, wherein the powdery metal is composed of one or more of metals selected from the group consisting of Ag, Co, Cu, Fe, Mn, Ni, Pd, Sn, and Te.
Claim 87
Dependent Claim
22 words
The image-forming apparatus according to claim 82, wherein the powdery metal has an average particle diameter ranging from 0.01 to 5.0 μm.
Claim 88
Dependent Claim
22 words
The image-forming apparatus according to claim 82, wherein the powdery metal has an average particle diameter ranging from 0.01 to 1.0 μm.
Claim 89
Dependent Claim
50 words
The image-forming apparatus according to claim 82, wherein the electrodeposition coating film is formed by electrodeposition of an electrodeposition paint prepared by mixing the powdery metal and the powdery ceramic in total amount of from 5 to 40 parts by weight with 100 parts by weight of an electrodepositable resin.
Claim 90
Dependent Claim
20 words
The image-forming apparatus according to claim 75, wherein the powdery ceramic is plated with a metal on the surface thereof.
Claim 91
Dependent Claim
19 words
The image-forming apparatus according to claim 87, wherein the metal for plating is selected from Ag, Ni, and Cu.
Claim 92
Dependent Claim
24 words
The image-forming apparatus according to claim 87, wherein the plated metal on the powdery ceramic has a thickness ranging from 0.05 to 0.9 μm.
Claim 93
Dependent Claim
24 words
The image-forming apparatus according to claim 87, wherein the plated metal on the powdery ceramic has a thickness ranging from 0.1 to 0.5 μm.
Claim 94
Dependent Claim
22 words
The image-forming apparatus according to claim 87, wherein the powdery ceramic has an average particle diameter ranging form 0.3 to 3.0 μm.
Claim 95
Dependent Claim
41 words
The image-forming apparatus according to claim 87, wherein the electrodeposition coating film is formed by electrodeposition of an electrodeposition paint prepared by mixing 5 to 20 parts by weight of the powdery ceramic with parts by weight of an electrodepositable resin.
Claim 96
Dependent Claim
27 words
The image-forming apparatus according to claim 87, wherein the electrodeposition coating film contains the co-deposited powdery ceramic at a content ranging from 5 to 50% by weight.
Claim 97
Dependent Claim
27 words
The image-forming apparatus according to claim 87, wherein the electrodeposition coating film contains the co-deposited powdery ceramic at a content ranging from 20 to 40% by weight.
Claim 98
Dependent Claim
24 words
The image-forming apparatus according to claim 87, wherein the electrodeposition containing film has a volume resistivity ranging from 10 4 to 10 13 Ωcm.
Claim 99
Dependent Claim
24 words
The image-forming apparatus according to claim 87, wherein the electrodeposition coating film has a volume resistivity ranging from 10 5 to 10 12 Ωcm.
Claim 100
Dependent Claim
17 words
The image-forming apparatus according to claim 87, wherein the electrodeposition coating film further contains a powdery metal.
Claim 101
Dependent Claim
35 words
The image-forming apparatus according to claim 87, wherein the powdery metal is composed of one or more of metals selected from the group consisting of Ag, Co, Cu, Fe, Mn, Ni, Pd, Sn, and Te.
Claim 102
Dependent Claim
22 words
The image-forming apparatus according to claim 87, wherein the powdery metal has an average particle diameter ranging from 0.01 to 5.0 μm.
Claim 103
Dependent Claim
22 words
The image-forming apparatus according to claim 87, wherein the powdery metal has an average particle diameter ranging from 0.01 to 1.0 μm.
Claim 104
Dependent Claim
50 words
The image-forming apparatus according to claim 87, wherein the electrodeposition coating film is formed by electrodeposition of an electrodeposition paint prepared by mixing the powdery metal are the powdery ceramic in total amount of from 5 to 40 parts by weight with 100 parts by weight of an electrodepositable resin.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 7.5 Years (Year 8) | 2003-10-08 | 2004-04-08 | 2004-10-08 | $3760.00 | Window Closed / Lapsed |
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