Facsimile machine using thin film electroluminescent device

摘要

A facsimile machine having a read mode for producing an electrical signal representative of a document and having a write mode for producing a fixed copy of the document from said representative electrical signal, the machine comprising sensor means for scanning the document and converting light images received into said electrical signal representative of such document, and photoreceptor means for forming a fixed copy from light images received; characterized in that said scanning means comprise an edge emitting thin film electroluminescent line array containing a plurality of pixels for selectively directing at least a portion of light emitted from said pixels to said photoreceptor means when the facsimile machine is in a write mode thereby transmitting light images to said photoreceptor means, and for selectively directing at least a portion of light emitted from said pixels to illuminate a document thereby providing light images to said sensor means when said facsimile machine is in a read mode, and wherein said pixels emit a primary beam directed to said photoreceptor means in the write mode, and a secondary emission at least a portion of which is directed toward a document in the read mode. <IMAGE> <IMAGE>