Patent ID: 6249334
Filing Date: 2001-06-19
Classification: B41J

Abstract:
An image forming apparatus comprising:(a) a recording material accommodating means for accommodating recording materials;(b) an image forming means for forming an image on the recording material;(c) a conveyance section for conveying the recording material fed from the recording material accommodating means to the image forming means;(d) a reversal and re-feeding means having a sheet reversal section and a sheet re-feeding section for conducting image formation on two sides of the recording material;wherein after the image is formed by the image forming means on one side surface of the recording material conveyed from the recording material accommodating means through the conveyance section, the recording material is conveyed to the reversal and re-feeding means, and conveyed again to the image forming means through the sheet re-feeding section of the reversal and re-feeding means and the conveyance section, and an image is formed on the other side surface of the recording material by the image forming means;(e) a first regulating means provided on the sheet re-feeding section of the reversal and re-feeding means for correcting a skew of the recording material conveyed, by forming a loop with the recording material; and(f) a second regulating means provided on the conveyance section in the vicinity of the image forming material for regulating the recording material conveyed,wherein the first regulating means comprises a first loop forming means for forming the loop with the recording material and a first collision means with which a leading edge of the recording material conveyed collides, and the first collision means is provided downstream of a conveyance direction of the recording material with respect to the first loop forming means.