摘要:
A sheet feeding apparatus comprising a sheet supporting device for stacking and supporting sheets, a sheet supplying device for feeding out the sheets supported by the sheet supporting device, a separating device for separating the sheets fed by the sheet supplying device one by one, a back tension releasing device for not acting a back tension on the sheet separated by the separating device, and a double feed preventing device, which is insertable into and retractable from a sheet feeding path for the sheet separated by the separating device. When the back tension is released by the back tension releasing device, the double feed preventing device is inserted into the sheet feeding path, thereby preventing the double feed of the sheets.
摘要:
An apparatus of the present invention includes a first guide supported by a cover body in such a manner that the first guide can swing around a hinge with respect to the main body of the apparatus and a second guide provided on the apparatus main body. The first guide is supported in such a manner that it can move with respect to the cover body. When the cover body swings so as to open a sheet conveyance path, a site of the first guide on the side of the hinge swings with respect to the cover body in such a direction so as to separate from the second guide.
摘要:
A sheet obliquely conveying apparatus is provided with a pair of sheet conveying rollers including a forwardly and reversely rotatable drive roller and a follower roller rotatable in contact with the drive roller, and bearing structure for rotatably supporting the shaft of the follower roller. The dimension of the bearing portion of the bearing structure which supports one end of the shaft of the follower roller is greater generally along the direction of conveyance of a sheet material than the dimension of the bearing portion of the bearing structure which supports the other end of the shaft of the follower roller. The apparatus is further provided with a resilient device generally parallel to the direction of conveyance of the sheet material for pressing the shaft of the follower roller.
摘要:
An apparatus of the present invention includes a first guide supported by a cover body in such a manner that the first guide can swing around a hinge with respect to the main body of the apparatus and a second guide provided on the apparatus main body. The first guide is supported in such a manner that it can move with respect to the cover body. When the cover body swings so as to open a sheet conveyance path, a site of the first guide on the side of the hinge swings with respect to the cover body in such a direction so as to separate from the second guide.
摘要:
The present invention provides a sheet supplying apparatus removably connected to an under side of an image forming apparatus to supply a sheet to the image forming apparatus. The apparatus has a main body connected to the under side of the image forming apparatus, a sheet supporting plate provided within the main body of sheet supplying apparatus to support a sheet, sheet supply rotary member for feeding out the sheet from the sheet supporting plate, a convey unit rotatably supported within the main body of sheet supplying apparatus to supply the sheet fed out by the sheet supply rotary member to a sheet receiving opening provided at a side surface of the image forming apparatus, and a positioning unit for positioning the convey unit in the vicinity of the sheet receiving opening.
摘要:
This invention relates to a sheet feeding apparatus having sheet carrying device unit for carrying sheets suspended by suspending unit, which is taken up by winding unit and thereby moves the sheet carrying device up and down to render the sheets fed from the topmost side of the sheets. Connection positions between the suspending unit and the sheet carrying device are located, in a direction perpendicular to a feeding direction of the sheets, at positions on a side of the sheet reference which is one end in the direction perpendicular to the feeding direction of the sheets, closer to the center of the sheets with respect to a position of a suspending original point of the suspending unit located over the sheet carrying device. The other connection positions between the suspending unit and the sheet carrying device are located, in a direction perpendicular to a feeding direction of the sheets, at a position on a side opposite to the side of the sheet reference, remote from the center of the sheets with respect to a position of a suspending original point of the suspending unit located over the sheet carrying device.
摘要:
An apparatus of the present invention includes a first guide supported by a cover body in such a manner that the first guide can swing around a hinge with respect to the main body of the apparatus and a second guide provided on the apparatus main body. The first guide is supported in such a manner that it can move with respect to the cover body. When the cover body swings so as to open a sheet conveyance path, a site of the first guide on the side of the hinge swings with respect to the cover body in such a direction so as to separate from the second guide.
摘要:
A sheet conveyer having a sheet registration device for an image forming apparatus having a sheet path for guiding a sheet having an image recorded on one side thereof back to an image forming unit for recording another image on the other side, comprises a mechanism for switching the sheet having the image recorded on one side thereof back to the sheet path, a mechanism for abutting the switched-back sheet against a lateral registration reference plane, and a preliminary shift function shared by the switch-back mechanism for shifting the sheet oppositely to the reference plane.