Patent ID: 8622390

Claim:
A sheet processing apparatus comprising: a paper feeding section configured to receive and feed a sheet conveyed from an apparatus having a control panel; a detecting section configured to detect the sheet fed by the paper feeding section; a standby tray on which the sheet fed by the paper feeding section is stacked, the standby tray including a first roller configured to convey the sheet; a second roller located above the standby tray and configured to come into contact with and separate from the first roller; a processing tray on which the sheet supplied from the standby tray is stacked, the processing tray configured to hold the sheet while a selected processing is applied to the sheet; a paper discharge section configured to receive the sheet subjected to the processing and discharged from the processing tray; and a control section configured to separate the second roller from the first roller at a predetermined time according to a result of the detection by the detecting section during conveyance of the sheet to the standby tray; wherein the control section receives information set on the control panel and determines, according to the received information, whether separating the second roller from the first roller is to be performed.