Frame structure of document input device

摘要

A frame structure of a document input device comprising: a base frame member (38) formed as a resin molded article, and having a base (40) and an annular frame (42) extending integrally with and substantially upwardly from said base as side walls; a top frame member made of a metal and having a top plate (32) with an opening (110) and side walls extending integrally with and downwardly from said top plate, said top frame member forming an outer frame of the device in combination with said base frame member; a glass plate (34) covering the opening (110) of said top plate (32); a carrier shaft (30) arranged in said base frame member (38); an optical reading unit (28) capable of moving along said carrier shaft (30); a positioning and engaging unit (130,132) arranged in said top frame member for engagement with at least one of said carrier shaft (30) and said optical reading unit (28) to determine the position of said optical reading unit in a direction in parallel with said glass plate (34) passing through said carrier shaft and perpendicular to said glass plate passing through said carrier shaft; and an automatic paper feeding unit mounted on said top frame member.