Patent ID: 7017901

Claim:
A paper treating unit comprising: a paper exhausting roller that delivers paper passed from a paper exhausting unit in a paper proceeding direction; a paper loading table that loads the paper at a paper loading position; a first paper aligning member that regulates the position of the paper in the paper proceeding direction; a first sliding unit for sliding back and forth said first paper aligning member, said first paper aligning member regulating the position of the paper by sliding back and forth in the paper proceeding direction; a second paper aligning member disposed upstream of the first paper aligning member in the paper proceeding direction to regulate the position of the paper in the paper proceeding direction; a third paper aligning member disposed along the paper proceeding direction to regulate the position of the paper in a width direction perpendicular to the paper proceeding direction; a second sliding unit for sliding back and forth said third paper aligning member, said third paper aligning member regulating the position of the paper by sliding back and forth in the width direction perpendicular to the paper proceeding direction; and a position detecting unit that detects the position of the first paper aligning member, the second paper aligning member and the third paper aligning member, wherein the first paper aligning member and the third paper aligning member are disposed independently of the paper loading table.