To reduce the number of partitems of a platening provided at each of insertion ports and make them common use, and perform reduction of cost even in the case of constituting a copy reading device having a U shaped carrier route with the copy insertion ports different from a conventional insertion part.

This device is constituted to have a first copy insertion port 30 to insert a document 18, a copy reading means 13 to read a copy picture image, a copy carrier route 17 having a U shaped curved passage 16-2 to carry a document from the first document insertion port 30 to the document reading means 13 and a second document insertion part 31 to insert the document into the document reading means 13 without passing it through the curved passage 16-2. In this case, parts 34a, 34b, 35 are used in common by making constitutions of a platen 32-A installed in the first insertion port and a platen 32-B installed in the second insertion port the same as each other, and a platen support part to support the platen or its main part 32 free to connect and disconnect is provided in each of the copy insertion ports.