Patent ID: 7171153
Filing Date: 2007-01-30
Classification: G03G

Abstract:
1. An image forming apparatus comprising: an image forming unit installed in a main body of the image forming apparatus for forming an image on a media piece; a tray stack including at least an upper stacked media supplying unit and a lower stacked media supplying unit for supplying the media piece from a selected one of the stacked media supplying units to the image forming unit, the tray stack being detachable from and attachable to an underside of the main body; wherein the tray stack includes: a register installed in the upper stacked media supplying unit which functions to correct skew of the media piece supplied from the lower stacked media supplying unit with respect to a transport direction along which the media piece is transported and then feed the media piece to the image forming unit; and wherein the skew of the media piece supplied from the lower stacked media supplying unit is not corrected at the lower stacked media supplying unit.