Abstract Disclosed is an improved copyboard for an electrophotographic recording apparatus which records information from a document onto a film. The apparatus consists of a transparent copyboard upon which the document is placed, light means for illuminating the document placed on the copyboard, mirror means for directing the reflected light image from the document to the film, and lens means for focusing the light image on the film. The improvement to the copyboard consists of a white border extending around the perimeter of the copyboard on the light means side of the copyboard and a dark border extending around the inside perimeter of the white border and on the document side of the copyboard. The copyboard eliminates the undesirable edge toning on an electrophotographic member by photographically reproducing in the border regions of the member a very dark border strip surrounded by a very light border strip.
Inventors
👤 John D. Plumadore
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-30 07:34
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/60; G03G15/605
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
In an apparatus for electrophotographically recording information from a document on a film, comprising a transparent copyboard having one side upon which the document is placed, light means on the opposite side of the copyboard from said one side for illuminating the document placed on the copyboard, mirror means for directing the light image reflected from the document to the film, and lens means for focusing the light image on the film, the improvement in the copyboard comprising: a white border extending around the perimeter of the copyboard on the light means side of the copyboard; and a dark border extending around the inside perimeter of the white border and on the document side of the copyboard.
Claim 2
Dependent Claim
117 words
In an apparatus for electrophotographically recording information from a document on a film, comprising a transparent copyboard having one side upon which the document is placed, light means on the opposite side of the copyboard from said one side for illuminating the document placed on the copyboard, mirror means for directing the light image reflected from the document to the film, and lens means for focusing the light image on the film, the improvement in the copyboard comprising: a white border extending around the perimeter of the copyboard on the light means side of the copyboard; and a dark border extending around the inside perimeter of the white border and on the document side of the copyboard.