Perforating apparatus, sheet processing apparatus, and image forming apparatus

摘要

A perforating apparatus having an orientation correction device that corrects skewing and aligns the front edge by striking the front edge of the paper, a perforation device having a punch to conduct perforation processing on the paper; and a lateral registration adjustment device that can adjust, in a direction at a right angle to the direction of movement of the aforementioned paper, the position of the perforation device punch in relation to the paper with orientation corrected using an orientation constraint device prior to perforating by the perforation device. The perforating apparatus may also include a structure in which said perforation device can be inserted into and detached from a non-moving support unit having the drive source of a lateral registration adjustment device, and when mounted, the type of perforation device can be recognized.

主权项

1. A perforating apparatus for conducting perforation processing on sheet material received from an image forming apparatus, comprising:
a perforation device including a punch configured to punch holes on said sheet material; a detection disk having at least one cutaway part, the detection disk being rotatably mounted at one end of the perforation device; a first drive motor fixedly mounted on a stay and in axial alignment with the perforation device for driving said perforation device to conduct said perforation processing on said sheet material; a base, having a plurality of rollers, fixedly mounted on the perforating apparatus, the perforation device being insertable into the stay and configured to move lengthwise on the stay; and a home position sensor mounted on the base, wherein said perforation device is axially insertable into and detachable from said first drive motor such that a first end of a rotational spindle of the perforation device is directly contactable with the first drive motor fixed to a non-moving part of the perforation device, and the home position sensor is positioned below the detection disk when the perforation device is operably engaged with the first drive motor.