Disclosed is a web handling system that includes a spindle having a spindle magnetic coupling portion and a roll core configured for receiving the spindle for mounting thereon and having a roll magnetic coupling portion, wherein the spindle and roll magnetic coupling portions are configured for magnetically attracting each other to hold the roll on the spindle.

Provided is the sheet bundle transport apparatus including: an abutment unit that performs switching between an abutment state at a predetermined position and a non-abutment state; first and second press units that press the sheet bundle against first and second transport units; a press switching unit that performs switching between a first press state where the first and second press units press the sheet bundle in a predetermined region located upstream from the predetermined position in the transport direction and a second press state where the first press unit does not press the sheet bundle in the predetermined region; and a control unit that controls the abutment unit and the press switching unit to switch the non-abutment state to the abutment state and switch the first press state to the second press state so as to change an angle relative to the width direction of a predetermined sheet bundle.

A sheet processing device includes an upstream device, a downstream device, and a controller as circuitry. The upstream device includes multiple rollers to convey a sheet in a conveyance direction and perform a sheet processing. The downstream device is downstream from the upstream device in the conveyance direction. The downstream device includes a sheet sensor to detect the sheet. The controller controls a timing to rotate the multiple rollers of the upstream device to perform the sheet processing in response to a detection of the sheet by the sheet sensor.