Image forming apparatus

Abstract

An image forming apparatus includes an image formation unit configured to form an image, a tray configured to stack the sheet, the tray being turnable between a closed position and an opened position, a feed unit configured to feed the sheet, and an extension tray configured to stack the sheet, the extension tray being movable between an extension position in which the extension tray is extended from the tray toward an upstream side and a stored position in which the extension tray is stored in the tray, wherein the apparatus main body has a first protruding portion protruding from the side surface of the apparatus main body toward the tray, and wherein when the tray is in the closed position and the extension tray is in the stored position, the first protruding portion presses an outer wall portion of the tray and the extension tray toward the opened position.

What is claimed is: 
     
         1 . An image forming apparatus comprising:
 an image formation unit configured to form an image on a sheet;   a tray disposed on a side surface of an apparatus main body of the image forming apparatus including the image formation unit and configured to stack the sheet thereon, the tray being turnable between a closed position in which the tray faces the side surface of the apparatus main body and an opened position in which the tray is opened from the apparatus main body to a position where the tray stacks the sheet thereon;   a feed unit configured to feed the sheet stacked on the tray toward the image formation unit; and   an extension tray configured to stack the sheet thereon, the extension tray being movable between an extension position in which the extension tray is extended from the tray toward an upstream side in a sheet feeding direction and a stored position in which the extension tray is stored in the tray,   wherein the apparatus main body has a first protruding portion protruding from the side surface of the apparatus main body toward the tray, and   wherein when the tray is in the closed position and the extension tray is in the stored position, the first protruding portion presses an outer wall portion of the tray and the extension tray toward the opened position.   
     
     
         2 . The image forming apparatus according to  claim 1 ,
 wherein the tray includes an engaging part that engages with the apparatus main body when the tray is in the closed position,   wherein the apparatus main body includes an engaged part that is engaged with the engaging part, and   wherein when the engaging part engages with the engaged part, the first protruding portion presses the outer wall portion of the tray and the extension tray toward the opened position.   
     
     
         3 . The image forming apparatus according to  claim 1 ,
 wherein the tray has a first stacking surface on which the sheet is stacked and includes a second protruding portion protruding from a surface of the tray that is a surface opposite to the first stacking surface on which the sheet is stacked, toward the outer wall portion of the tray,   wherein the extension tray has a second stacking surface on which the sheet is stacked and includes a third protruding portion protruding from a surface of the extension tray that is a surface opposite to the second stacking surface on which the sheet is stacked, toward the outer wall portion of the tray, and   wherein when the tray is in the closed position and the extension tray is in the stored position, the first protruding portion presses the first stacking surface of the tray, the second protruding portion presses the second stacking surface of the extension tray, and the third protruding portion presses the outer wall portion of the tray.   
     
     
         4 . The image forming apparatus according to  claim 1 ,
 wherein the first stacking surface of the tray has a hole through which the first protruding portion passes,   wherein the extension tray has a second stacking surface on which the sheet is staked and includes a third protruding portion protruding from a surface of the extension tray that is a surface opposite to the second stacking surface on which the sheet is stacked, toward the outer wall portion of the tray, and   wherein when the tray is in the closed position and the extension tray is in the stored position, the first protruding portion passed through the hole presses the second stacking surface of the extension tray, and the third protruding portion presses the outer wall portion of the tray.   
     
     
         5 . An image forming apparatus comprising:
 an image formation unit configured to form an image on a sheet;   a tray disposed on a side surface of an apparatus main body of the image forming apparatus including the image formation unit and configured to stack the sheet thereon, the tray being turnable between a closed position in which the tray faces the side surface of the apparatus main body and an opened position in which the tray is opened from the apparatus main body to a position where the sheet is stacked; and   a feed unit configured to feed the sheet stacked on the tray toward the image formation unit,   wherein the apparatus main body has a first protruding portion protruding from a side surface of the apparatus main body toward the tray, and   wherein when the tray is in the closed position, the first protruding portion presses an outer wall portion of the tray toward the opened position.   
     
     
         6 . The image forming apparatus according to  claim 5 ,
 wherein the tray has a first stacking surface on which the sheet is stacked and includes a second protruding portion protruding from a surface of the tray that is a surface opposite to the first stacking surface on which the sheet is stacked, toward the outer wall portion of the tray, and   wherein when the tray is in the closed position, the first protruding portion presses the first stacking surface of the tray, and the second protruding portion presses the outer wall portion of the tray.   
     
     
         7 . The image forming apparatus according to  claim 5 ,
 wherein the first stacking surface of the tray has a hole through which the first protruding portion passes, and   wherein when the tray is in the closed position, the first protruding portion passed through the hole presses the outer wall portion of the tray.