US Patent 7532852 Registration device and image forming apparatus with the same

A registration device includes a feed roller which presses one surface of a sheet to feed the sheet. A cartridge unit is placed opposite to the feed roller and includes a follower roller to support the other surface of the sheet. An image forming unit forms an image on the sheet and a regulating element rotates the cartridge unit relative to the feed roller so that an arranged sheet can be fed into the image forming unit. The registration device can regulate the parallel degree between the cartridge unit and the feed roller in the process of assembling the image forming apparatus to prevent the skew of the sheet.