Image Forming Apparatus

摘要

An image forming apparatus includes a feed tray, an image forming unit including a photosensitive member, a registration mechanism including a registration roller pair and configured such that, after a leading edge of the sheet fed from the feed tray reaches the registration roller pair, the registration roller pair rotates to convey the sheet toward the photosensitive member along a conveying path, a switchback mechanism for switching back, along a re-conveying path, the sheet having an image formed thereon by the image forming unit, and a re-conveying roller for conveying the switched-back sheet toward the registration roller pair via a conjunction between the re-conveying path and the conveying path. The registration roller pair includes a registration driving roller and a registration pinch roller driven by the registration driving roller. The re-conveying roller in contact with the registration driving roller is driven by the registration driving roller.

主权项

1. An image forming apparatus comprising:
a feed tray configured to hold a sheet thereon; an image forming unit comprising a photosensitive member and configured to form an image on the sheet; a registration mechanism comprising a registration roller pair and configured such that, after a leading edge of the sheet fed from the feed tray reaches the registration roller pair, the registration roller pair rotates to convey the sheet toward the photosensitive member along a conveying path in a conveying direction; a switchback mechanism disposed downstream of the photosensitive member in the conveying direction and configured to switch back, along a re-conveying path, the sheet having the image formed thereon by the image forming unit; and a re-conveying roller configured to convey the sheet switched back by the switchback mechanism toward the registration roller pair via a junction where the re-conveying path meets the conveying path, wherein the registration roller pair comprises a registration driving roller, and a registration pinch roller configured to be driven by the registration driving roller, and wherein the re-conveying roller is in contact with the registration driving roller and configured to be driven by the registration driving roller.