Sheet carrying device with skew correction

摘要

After detecting an anterior end of a photosensitive material with a sensor, a controlling unit (70) controls a release unit (75) to release a nip of a carrying roller pair (35) carrying the photosensitive material. The nip of the carrying roller pair is released in accordance with a length of the photosensitive material in a carrying direction thereof. It is possible to avoid applying a force of the carrying roller pair to a posterior end of the photosensitive material so that a skew-correction amount of a skew corrector (50) is prevented from deteriorating. A skew of the photosensitive material is surely corrected relative to the carrying direction of the photosensitive material.