Patent EP0039403A2 successfully refreshed from Google Patents.
EP0039403A2
Expired / Lapsed
EP
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Xerographic copier including controllable erase system
Assignee: International Business Machines Corp
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Filing: 1981-03-19
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Granted: —
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Expires: 2001-03-19
Abstract
Abstract An edge erase system (83) including a plurality of light sources is positioned adjacent the photoconductor of a xerographic copier. In addition to its edge erase function, the erase system can be controlled by a control system (85, 86) to effect the formation of graphical or alphanumeric information adjacent the image area.
Inventors
- 👤 Douglas Jarvis Conly
- 👤 Bonnie Belle Baker
- 👤 David Duane Larson
- 👤 Stanley Thomas Riddle
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 04:49
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/04; G03G15/04018; G03G15/045; G03G15/047; G03G2215/00; G03G2215/04; G03G2215/0429; G03G2215/0431; G03G2215/0448; G03G2215/0451
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
103 words
A xerographic copier including a movable photoconductor device (81) for supporting electrostatic latent images of documents and an erase device (83) for erasing the photoconductor device in an area immediately adjacent an image area thereon, characterised in that said erase device comprises a plurality of light sources (0-9) positioned adjacent the photoconductor device, each operable, when energised, to illuminate an individual band on the photoconductor device as it moves therepast, and arranged such that adjacent bands overlap, and control means (85, 86) coupled to control the energisation of the light sources to illuminate areas of the photoconductor in the configuration of symbolic representations.
Claim 2
Dependent Claim
103 words
A xerographic copier including a movable photoconductor device (81) for supporting electrostatic latent images of documents and an erase device (83) for erasing the photoconductor device in an area immediately adjacent an image area thereon, characterised in that said erase device comprises a plurality of light sources (0-9) positioned adjacent the photoconductor device, each operable, when energised, to illuminate an individual band on the photoconductor device as it moves therepast, and arranged such that adjacent bands overlap, and control means (85, 86) coupled to control the energisation of the light sources to illuminate areas of the photoconductor in the configuration of symbolic representations.
Claim 3
Dependent Claim
26 words
A copier according to claim 1 further characterised in that said erase device comprises an edge erase device positioned at one side of the photoconductor device.
Claim 4
Dependent Claim
50 words
A copier according to claim 1 or claim 2 further characterised in that said light sources are arranged in rows in a direction orthogonal to the direction of movement of the photoconductor device, the light sources in adjacent rows being offset such as to effect said overlapping of adjacent bands.
Claim 5
Dependent Claim
54 words
A copier according to any of claims 1 to 3 further characterised in that the controller, when effecting control of the erase device to form said symbolic representations, causes at least the light source immediately adjacent the image area to remain un- energised thereby to effect separation between the image area and the representations.
Claim 6
Dependent Claim
21 words
A copier according to any of claims 1 to 4, further characterised in that said light sources are light emitting diodes.
References Cited (Backward Citations)
No citation records indexed.
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