DOCUMENT READER, IMAGE FORMING APPARATUS, DOCUMENT READER CONTROL METHOD, AND DOCUMENT READER CONTROL PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a document reader, an image forming apparatus, a document reader control method, and a document reader control program capable of accurately detecting the opened/closed state of conveying means for conveying a document.

SOLUTION: A digital complex machine comprises: a scanner part 13 that reads an image at a document reading position 257; a document holding cover 20 that can change the closed state in which the scanner part 13 is covered to the opened state in which the scanner part 13 is exposed or vice versa and conveys a document 290a to the scanner part 13 when the cover is in the closed state; a resist sensor 256 that detects a tip part P1 and a rear end part P2 of the document 290a conveyed by the document holding cover 20; and a control device that determines the opened/closed state of the document holding cover 20 based on the states of the tip part P1 and the rear end part P2 of the document 290a in the image read by an IR module 201 when a predetermined time elapses after the detection state of the resist sensor 256 changed.

COPYRIGHT: (C)2012,JPO&INPIT