US3719951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wrap adjust device for controlling engagement between a web and roller in an imaging system
Assignee: Xerox Corp
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Filing: 1971-08-16
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Granted: 1973-03-06
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Expires: 1991-08-16
Abstract
Abstract The temperature of a heat sensitive web is controlled by varying the contact area between the web and a thermo roller having an appropriate thermo energy device coupled to it. A wrap adjust roller is supported for movement along a circular path concentric with the periphery of the thermo roller and varies the surface area contact between web and thermo roller at different locations relative to the thermo roller.
Inventors
- 👤 W Kingsley
- 👤 R Allis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:29
CPC Classifications
G; G03; G03G; G03G17/00; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G05; G05D; G05D23/00; G05D23/19; G05D23/1919; G05D23/192; H; H04; H04N; H04N1/00; H04N1/23; H04N1/29
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
146 words
A method of controlling the temperature of a heat sensitive web, including a migration imaging member comprising imaging particles and a softenable material, comprising depositing electrostatic charge on said web and exposing said web to electromagnetic radiation in image configuration to create an electrical latent image which develops by imagewise migration of image particles as a result of the contact of said web with a thermo roller having a thermo energy source including means for heating the thermo roller, coupled to it; wrapping said web about the thermo roller thus diverting the direction of the web; supporting a wrap adjust roller for movement along at least a portion of circular path around the periphery of the thermo roller; moving the said wrap adjust roller between at least two positions on said circular path for varying the surface area contact between the web and the thermo roller.
Claim 2
Independent Claim
146 words
A method of controlling the temperature of a heat sensitive web, including a migration imaging member comprising imaging particles and a softenable material, comprising depositing electrostatic charge on said web and exposing said web to electromagnetic radiation in image configuration to create an electrical latent image which develops by imagewise migration of image particles as a result of the contact of said web with a thermo roller having a thermo energy source including means for heating the thermo roller, coupled to it; wrapping said web about the thermo roller thus diverting the direction of the web; supporting a wrap adjust roller for movement along at least a portion of circular path around the periphery of the thermo roller; moving the said wrap adjust roller between at least two positions on said circular path for varying the surface area contact between the web and the thermo roller.
Claim 3
Independent Claim
146 words
A method of controlling the temperature of a heat sensitive web, including a migration imaging member comprising imaging particles and a softenable material, comprising depositing electrostatic charge on said web and exposing said web to electromagnetic radiation in image configuration to create an electrical latent image which develops by imagewise migration of image particles as a result of the contact of said web with a thermo roller having a thermo energy source including means for heating the thermo roller, coupled to it; wrapping said web about the thermo roller thus diverting the direction of the web; supporting a wrap adjust roller for movement along at least a portion of circular path around the periphery of the thermo roller; moving the said wrap adjust roller between at least two positions on said circular path for varying the surface area contact between the web and the thermo roller.
Claim 4
Independent Claim
146 words
A method of controlling the temperature of a heat sensitive web, including a migration imaging member comprising imaging particles and a softenable material, comprising depositing electrostatic charge on said web and exposing said web to electromagnetic radiation in image configuration to create an electrical latent image which develops by imagewise migration of image particles as a result of the contact of said web with a thermo roller having a thermo energy source including means for heating the thermo roller, coupled to it; wrapping said web about the thermo roller thus diverting the direction of the web; supporting a wrap adjust roller for movement along at least a portion of circular path around the periphery of the thermo roller; moving the said wrap adjust roller between at least two positions on said circular path for varying the surface area contact between the web and the thermo roller.
Claim 5
Independent Claim
144 words
A method of controlling the temperature of a heat sensitive web, including a thermoplastic deformation member including a thermoplastic insulating layer and a photoconductive layer, comprising: depositing electrostatic charge on said web and exposing said web to electromagnetic radiation in image configuration to create an electrical latent image which develops by imagewise deforming said insulating layer as a result of the contact of said web with a thermo roller having a thermo energy source, including means for heating the thermo roller; wrapping said web about the thermo roller thus diverting the direction of the web; supporting a wrap adjust roller for movement along at least a portion of a circular path around the periphery of the thermo roller; moving said wrap adjust roller between at least two positions on said circular path for varying the surface area contact between the web and thermo roller.
Claim 6
Independent Claim
144 words
A method of controlling the temperature of a heat sensitive web, including a thermoplastic deformation member including a thermoplastic insulating layer and a photoconductive layer, comprising: depositing electrostatic charge on said web and exposing said web to electromagnetic radiation in image configuration to create an electrical latent image which develops by imagewise deforming said insulating layer as a result of the contact of said web with a thermo roller having a thermo energy source, including means for heating the thermo roller; wrapping said web about the thermo roller thus diverting the direction of the web; supporting a wrap adjust roller for movement along at least a portion of a circular path around the periphery of the thermo roller; moving said wrap adjust roller between at least two positions on said circular path for varying the surface area contact between the web and thermo roller.
Claim 7
Dependent Claim
122 words
Imaging apparatus comprising: a. means for advancing a member comprising a web through a predetermined path; b. charging means positioned along said path adapted to charge said member; c. exposure means positioned along said path adapted to expose the member to an image configuration of electromagnetic radiation to create an electrical latent image in said member; d. development means comprising a thermo roller positioned along said path adapted to have the member wrapped around a portion of its periphery to effect heat exchange between the member and said thermo roller; e. a wrap adjust roller supported for movement along a circular path around the periphery of said thermo roller for varying the surface area contact between the member and said thermo roller.
Claim 8
Dependent Claim
122 words
Imaging apparatus comprising: a. means for advancing a member comprising a web through a predetermined path; b. charging means positioned along said path adapted to charge said member; c. exposure means positioned along said path adapted to expose the member to an image configuration of electromagnetic radiation to create an electrical latent image in said member; d. development means comprising a thermo roller positioned along said path adapted to have the member wrapped around a portion of its periphery to effect heat exchange between the member and said thermo roller; e. a wrap adjust roller supported for movement along a circular path around the periphery of said thermo roller for varying the surface area contact between the member and said thermo roller.
Claim 9
Dependent Claim
122 words
Imaging apparatus comprising supply and take up reels for supporting a heat developable imaging web, an imaging roller positioned adjacent said web between the supply and take up reels for electrically coupling a potential source to a conductive substrate of said web, a corotron for generating electrostatic charge for deposition onto sAid web as it passes the imaging roller, exposure means for exposing a charged web to electromagnetic radiation, a thermo roller positioned to have said web wrapped around a portion of its periphery for heating the web for image development and a wrap adjust roller supported for movement along a circular path around the periphery of said thermo roller for varying the surface area contact between the web and thermo roller.
Claim 10
Dependent Claim
122 words
Imaging apparatus comprising supply and take up reels for supporting a heat developable imaging web, an imaging roller positioned adjacent said web between the supply and take up reels for electrically coupling a potential source to a conductive substrate of said web, a corotron for generating electrostatic charge for deposition onto sAid web as it passes the imaging roller, exposure means for exposing a charged web to electromagnetic radiation, a thermo roller positioned to have said web wrapped around a portion of its periphery for heating the web for image development and a wrap adjust roller supported for movement along a circular path around the periphery of said thermo roller for varying the surface area contact between the web and thermo roller.
Claim 11
Dependent Claim
23 words
Apparatus according to claim 4 wherein said exposure means is adapted for exposing a charged web to an image configuration of electromagnetic radiation.
Claim 12
Dependent Claim
29 words
The apparatus of claim 4 further including position control means coupled to said wrap adjust roller for moving the wrap adjust roller between various positions along said circular path.
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) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |