Patent ID: 8590884

Claim:
An image forming apparatus comprising: an image-forming part for forming an image on paper; a resist part for conveying paper toward the image-forming part; a paper feeding part accommodating a plurality of sheets of paper and having a paper feeding rotating body, the paper feeding rotating body being rotated so as to send paper out toward the resist part; a detector for detecting the arrival of paper at the resist part, the detector being provided upstream of the resist part in the paper conveyance direction; a timer part for measuring a measurement time from when feeding of a second sheet of paper from the paper feeding part is begun to when the detector detects the arrival of the second sheet of paper, and a sheet interval time from when the detector detects the passage of a first sheet of paper immediately preceding the second sheet of paper to when the arrival of the second sheet of paper is detected; an identifier part for referring to the measurement time and a predetermined reference measurement time acting as a reference for the measurement time, referring to the sheet interval time and a predetermined reference sheet interval time acting as a reference for the sheet interval time, deciding upon a correction to be performed upon the paper feed start timing, and delaying or advancing the paper feed start timing with respect to the current paper feed start timing for the paper feeding part on the basis of the decided-upon correction to be performed; a rotating body for conveying toward the resist part paper supplied from the paper feeding part, the rotating body continuing to rotate while a plurality of sheets of paper is being conveyed; the rotating body temporarily stopping rotating when the measured sheet interval time is short with respect to a sheet interval necessary downstream of the resist part in the paper conveyance direction; and the rotating body and resist part beginning to convey paper after waiting until the necessary sheet interval is reached.