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US 3,945,728 AGranted
Alarm for an electrophotographic printing machine
AssigneeXerox Corporation
InventorMelvin G. Crandell
Life of this patent
Estimating the term…
Abstract
An apparatus in which the failure to remove an original document from a housing after the elapse of a preselected duration of time is detected.
Claims8
An apparatus for housing an original document, including:
- means for supporting the original document;
- means for detecting the failure to remove the original document from said supporting means after the elapse of a preselected duration of time;
- a cover member operatively associated with said supporting means and being movable from an opened position permitting the orignal document to be disposed on said supporting means to a closed position securing releasably the original document on said supporting means;
- and
- means for illuminating the original document disposed upon said supporting means.
2 more elements
An electrophotographic printing machine of the type having a corona generating device for charging a photoconductive member to a substantially uniform potential, and an exposure mechanism for illuminating an original document forming a light image which irradiates the charged photoconductive member recording a latent image thereon, wherein the improvement includes:
- means for supporting the original document;
- means for detecting the failure to remove the original document from said supporting means after the elapse of a preselected duration of time;
- a cover member operatively associated with said supporting means and being movable from an opened position permitting the original document to be disposed on said supporting means to a closed position securing releasably the original document on said supporting means.
Dependencies are inferred from the claim text.