Patent US5166737A successfully refreshed from Google Patents.
US5166737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transport guide member for guiding transfer sheets
Assignee: Ricoh Co Ltd
•
Filing: 1990-08-01
•
Granted: 1992-11-24
•
Expires: 2010-08-01
Abstract
Abstract A transport guide member for transporting a toner-image-bearing transfer sheet to an image-fixing unit with the image-bearing side up thereon, comprising a grounded slide-contact layer having a volume resistivity of 10 6 to 10 13 Ω·cm, along which the above-mentioned transfer sheet is transported with the back side thereof opposite to the image-bearing side thereof being in contact therewith.
Inventors
- 👤 Junko Tomita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:14
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/65; G03G15/6555; G03G15/657; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2017; G03G15/2028; G03G2215/00; G03G2215/00362; G03G2215/00367; G03G2215/00413; G03G2215/00443; G03G2215/00447; G03G2215/00493; G03G2215/00497; G03G2215/00535; G03G2215/00649
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
80 words
A transport guide member for transporting a toner-image-bearing transfer sheet with the image-bearing side up thereon comprising: a slide-contact layer which is grounded and has a volume resistively of 10 6 to 10 13 Ω·cm, along which said transfer sheet is transported with the back side thereof opposite to the image-bearing side thereof being in contact therewith, said slide-contact layer having a charging voltage of 300 V or less and a charging voltage half-value period of 1 sec or less.
Claim 2
Dependent Claim
80 words
A transport guide member for transporting a toner-image-bearing transfer sheet with the image-bearing side up thereon comprising: a slide-contact layer which is grounded and has a volume resistively of 10 6 to 10 13 Ω·cm, along which said transfer sheet is transported with the back side thereof opposite to the image-bearing side thereof being in contact therewith, said slide-contact layer having a charging voltage of 300 V or less and a charging voltage half-value period of 1 sec or less.
Claim 3
Dependent Claim
79 words
A transport guide member for transporting a toner-image-bearing transfer sheet with the image-bearing side up thereon comprising: a slide-contact layer which is grounded and has a volume resistively of 10 6 to 10 13 Ω·cm, along which said transfer sheet is transported with the back side thereof opposite to the image-bearing side thereof being in contact therewith; and a substrate comprising an electroconductive material on which said slide-contact layer is provided, and through which said slide-contact layer is grounded.
Claim 4
Dependent Claim
79 words
A transport guide member for transporting a toner-image-bearing transfer sheet with the image-bearing side up thereon comprising: a slide-contact layer which is grounded and has a volume resistively of 10 6 to 10 13 Ω·cm, along which said transfer sheet is transported with the back side thereof opposite to the image-bearing side thereof being in contact therewith; and a substrate comprising an electroconductive material on which said slide-contact layer is provided, and through which said slide-contact layer is grounded.
References Cited (Backward Citations)
US4408863A
Cited
US4369729A
Cited
US4511238A
Cited
US4862215A
Cited
US4843214A
Cited
US4939550A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-11-24 | 1996-05-25 | 1996-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-11-24 | 2000-05-25 | 2000-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-11-24 | 2004-05-25 | 2004-11-24 | $7700.00 | Window Closed / Lapsed |