US3751155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pre-development exposure assembly
Assignee: Xerox Corp
•
Filing: 1971-12-30
•
Granted: 1973-08-07
•
Expires: 1991-12-30
Abstract
Abstract A pre-development exposure assembly is provided within an electrostatic reproduction machine transverse to the photoconductive surface thereof to selectively expose side portions of the photoconductive surface in response to a signal generated by a switch responsive to the dimension of an image receiving member being transported therethrough.
Inventors
- 👤 K Liechty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:04
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/04; G03G15/045; G03G15/047; G03G2215/00; G03G2215/04; G03G2215/0429; G03G2215/0431; G03G2215/0434; G03G2215/0443; G03G2215/0446; G03G2215/0448
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
125 words
In an electrostatic reproduction machine having a moving photoconductive surface adapted to be charged and to carry an electrostatic latent image thereon, developing means positioned at a development zone to develop the moving electrostatic image on said surface, the developed image being adapted for transfer to a suitable receiver member, a discharge device adapted when activated to discharge a charged portion of said surface, said device being positioned to influence portions of the surface after exposure thereof, the combination comprising: a receiver member supply assembly, said assembly being adjustable to accommodate a range of receiver member sizes; and, control means responsive to the adjusted position of said receiver membEr supply assembly to render said discharge device operable to discharge a side portion of said surface.
Claim 2
Dependent Claim
125 words
In an electrostatic reproduction machine having a moving photoconductive surface adapted to be charged and to carry an electrostatic latent image thereon, developing means positioned at a development zone to develop the moving electrostatic image on said surface, the developed image being adapted for transfer to a suitable receiver member, a discharge device adapted when activated to discharge a charged portion of said surface, said device being positioned to influence portions of the surface after exposure thereof, the combination comprising: a receiver member supply assembly, said assembly being adjustable to accommodate a range of receiver member sizes; and, control means responsive to the adjusted position of said receiver membEr supply assembly to render said discharge device operable to discharge a side portion of said surface.
Claim 3
Dependent Claim
72 words
An electrostatic reproduction machine according to claim 1 wherein said control means includes a switch operatively associated with said receiver member supply assembly, said switch being adapted to provide a signal indicative of the adjustment of said receiver member supply assembly for activating said discharge device to discharge a charged area on a side portion of said surface relative to the size of the receiver member in said receiver member supply assembly.
Claim 4
Dependent Claim
117 words
In an electrostatic reproduction machine having a moving photoconductive surface adapted to be charged and to carry an electrostatic latent image thereon, developing means positioned at a development zone to develop the moving electrostatic image on said surface, the developed image being adapted for transfer to a suitable receiver member, means to provide an uncharged strip along an edge portion of said surface prior to development thereof, the combination comprising: a receiver member supply assembly, said assembly being adjustable to accommodate a range of receiver member sizes; and, control means responsive to the adjusted position of said receiver member supply assembly to activate said means to provide an uncharged strip along the edge portion of said surface.
Claim 5
Dependent Claim
117 words
In an electrostatic reproduction machine having a moving photoconductive surface adapted to be charged and to carry an electrostatic latent image thereon, developing means positioned at a development zone to develop the moving electrostatic image on said surface, the developed image being adapted for transfer to a suitable receiver member, means to provide an uncharged strip along an edge portion of said surface prior to development thereof, the combination comprising: a receiver member supply assembly, said assembly being adjustable to accommodate a range of receiver member sizes; and, control means responsive to the adjusted position of said receiver member supply assembly to activate said means to provide an uncharged strip along the edge portion of said surface.
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) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |