Extra data adding unit for a copier

Abstract

Abstract An extra data adding unit for an electrophotographic copier and others which allows date, time, page number, managerial number and other extra data, as distinguished from document data, to be copied together with an original document. The unit is provided with a thin flat configuration. A first display section for displaying extra data is provided on one surface of the unit while a second display section for monitoring the extra data and switches for setting modes and data are provided on the other surface of the unit. A battery for powering the unit is removably contained in the unit. That surface of the unit on which the monitor display section and switches are disposed is constituted by a white, light diffusing surface except for its area where the first display section is located. The position of the first display area is indicated on the other surface of the unit. A means for sensing light which illuminates a document is disposed in the vicinity of at least a pair of portions of the first display section which are positioned diagonally to each other. To discriminate the data from the document data, a fixed pattern is provided on that surface of the unit where the data display section is arranged. The fixed pattern bifunctions as the light sensing means or, alternatively, at least a part of the fixed pattern defines a light inlet for the light sensing means.

Inventors

• 👤 Koichi Noguchi

Bibliographic Details