Patent ID: 8857807

Claim:
A sheet processing apparatus comprising: a punch unit including a punch head configured to punch a sheet, the punch head positioned on a first side of a conveying path along which the sheet is conveyed; a driving unit configured to pivot the punch unit; a first member positioned on the first side of the conveying path downstream of the punch unit in a sheet conveying direction and configured to guide the sheet being conveyed; a second member positioned on a second side of the conveying path opposed to the first member and configured to form, in conjunction with the first member, a portion of the conveying path; and a sheet regulating member positioned between the punch unit and the first member and configured to block movement of the sheet into a space between the first member and the punch unit as the sheet is conveyed from the punch unit to the portion of the conveying path formed by the first and second guide members, and to guide the sheet to the portion of the conveying path formed by the first and second members, wherein a first end of the sheet regulating member is mounted to the first member and a second end of the sheet regulating member extends upstream in the sheet conveying direction and curves in a thickness direction of the sheet towards the first side of the conveying path.