US3880577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toner image fixing device
Assignee: Konica Minolta Inc
•
Filing: 1973-09-07
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Granted: 1975-04-29
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Expires: 1993-09-07
Abstract
Abstract An improved device for fixing a toner image to a support member bearing said toner image thereon, is disclosed which comprises thermo-fixing means contacting said toner image to the support member, said means having a metallic micro-porous surface and being heated to a temperature sufficient to fix the toner image to the support member, said surface having a plurality of fine pores less than 1 micron in size and a porosity of less than 25%; and releasing agent feeding means for feeding a releasing agent onto said surface.
Inventors
- 👤 Makoto Tomono
- 👤 Ken Nakamura
- 👤 Niriyoshi Tarumi
- 👤 Masayuki Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:14
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2053; G03G15/2017; G03G15/2025
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
46 words
A DEVICE FOR FIXING A TONER IMAGE TO A SUPPORT MEMBER BEARING SAID TONER IMAGE THEREON, COMPRISING: THERMO-FIXING MEANS HAVING A METALLIC MICRO-POROUS SURFACE AND BEING HEATED TO A TEMPERATURE SUFFICIENT TO FIX THE TONER IMAGE TO THE SUPPORT MEMBER, SAID METALLIC MICRO-POROUS SURFACE HAVING A
Claim 2
Independent Claim
46 words
A DEVICE FOR FIXING A TONER IMAGE TO A SUPPORT MEMBER BEARING SAID TONER IMAGE THEREON, COMPRISING: THERMO-FIXING MEANS HAVING A METALLIC MICRO-POROUS SURFACE AND BEING HEATED TO A TEMPERATURE SUFFICIENT TO FIX THE TONER IMAGE TO THE SUPPORT MEMBER, SAID METALLIC MICRO-POROUS SURFACE HAVING A
Claim 3
Dependent Claim
27 words
A toner image fixing device according to claim 1 wherein means for contacting the toner image with said thermo-fixing means are positioned opposite to said thermo-fixing means.
Claim 4
Dependent Claim
22 words
A toner image fixing device according to claim 1 wherein said releasing agent feeding means comprising material which permeate the releasing agent.
Claim 5
Dependent Claim
33 words
A toner image fixing device according to claim 1 wherein said releasing agent feeding means are a rotating roller which contacts with said thermo-fixing means and on which a releasing agent is coated.
References Cited (Backward Citations)
US3291466A
Cited
US3437032A
Cited
US3395636A
Cited
US3409280A
Cited
US3452181A
Cited
US3595539A
Cited
US3637976A
Cited
US3659347A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |