| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image reading apparatus which reads the leading edge in the transport direction of an adjustment sheet with sufficient accuracy when performing adjustment by the adjustment sheet, and consequently reads an original image at accurate read start timing when reading an original, and to provide an image forming apparatus. Ž<P>SOLUTION: The image reading apparatuses 100a and 100b start reading the original image after a reading start time Ta has elapsed since detecting the transport timing of the original G on the upstream side in the transport direction Y1 relative to an original reading position R1, adjust the reading start time Ta based on a reading timing adjustment time T1a from when the transport timing of the adjustment sheet P is detected until when original reading portions 200a and 200b read a position considered to be the leading edge P' in a first mark Q1 on the adjustment sheet P, and correct the read start timing of the original G based on information T2a for leading edge reading error correction stored in advance. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
|
