초록 ▼

A duplex unit includes a case housing a sheet reverse path that connects to a sheet discharging outlet and a sheet refeed inlet provided on a side of a main body case housing an image forming unit and that is configured to reverse the sheet supplied from the sheet discharging outlet and refeed the s

A duplex unit includes a case housing a sheet reverse path that connects to a sheet discharging outlet and a sheet refeed inlet provided on a side of a main body case housing an image forming unit and that is configured to reverse the sheet supplied from the sheet discharging outlet and refeed the sheet to the sheet refeed inlet. The case is rotatable around a first supporting shaft so as to be opened and closed. The duplex unit includes a manual sheet feeding tray that is rotatably supported by a horizontal second supporting shaft so as to be opened to manually feed a sheet to a manual sheet feeding inlet provided on the side of the main body case and to be closed otherwise. A recess is provided on the case so as to retract the manual sheet feeding tray into the recess without protruding from a side surface of the case when the tray is closed. The case and the manual sheet feeding tray are engaged by engaging a concave portion of the case and a convex portion of the manual sheet feeding tray.

대표청구항 ▼

[ What is claimed as new and is desired to be secured by Letters Patent of the United States is:] [1.]1. A duplex unit to reverse a sheet supplied from a sheet discharging outlet of an image forming apparatus and to refeed the sheet to a sheet refeed inlet of the image forming apparatus, the duplex

[ What is claimed as new and is desired to be secured by Letters Patent of the United States is:] [1.]1. A duplex unit to reverse a sheet supplied from a sheet discharging outlet of an image forming apparatus and to refeed the sheet to a sheet refeed inlet of the image forming apparatus, the duplex unit comprising:a case housing a sheet reverse path configured to connect the sheet discharging outlet to the sheet refeed inlet of the image forming apparatus, the sheet reverse path being configured to reverse the sheet supplied from the sheet discharging outlet and refeed the sheet to the sheet refeed inlet, the case being rotatable around a first supporting shaft whereby the case is configured to have an open position and a closed position; anda manual sheet feeding tray that is rotatably supported by a horizontal second supporting shaft whereby the case has an open position configured to allow a sheet to be manually fed to a manual sheet feeding inlet provided on the image forming apparatus and a closed position,wherein the case includes a recess configured to receive the manual sheet feeding tray into the recess without protruding from a side surface of the case when the tray is in the closed position.