Abstract: The trailing edge of a sheet delivered to a treating tray for treating the sheet with respect to a delivering direction is made to abut against a trailing edge regulating member to thereby regulate the trailing edge position of the sheet. Next, a sheet delivery lever is reciprocally moved between a first position in which it is retracted to the upstream side of the trailing edge regulating member with respect to the sheet delivering direction and a second position in which it protrudes into the stacking area of the treating tray, to thereby push the trailing edge of the treated sheet and deliver the sheet onto a sheet stacking tray. Also, when this sheet delivery lever is to be moved from the second position to the first position, the sheet delivery lever is moved so as to be capable of passing by the sheet delivered to the treating tray, whereby even during the time when the sheet delivering lever is moved to the first position, the delivery of a succeeding sheet to the treating tray is made possible.

Abstract: A sheet post-processing apparatus includes a pair of a conveying upper guide and a conveying lower guide which guides a sheet conveyed by an intermediate roller conveying the sheet, a sheet discharging upper rotating body and a sheet discharging lower rotating body which discharge the sheet on the downstream side of the conveying upper and lower guides, an arm which has the sheet discharging upper rotating body and is displaceable in upward and downward directions, a cam which lifts the arm upward to separate the sheet discharging upper rotating body from the sheet discharging lower rotating body, a stapler which is provided on the downstream side in a sheet conveying direction lower than the intermediate roller and performs processing to the sheet stacked in the conveying lower guide, a link portion which displaces upward the conveying upper guide when the arm is displaced by the cam, and a link lever.

Abstract: The present invention relates to a sheet processing apparatus having a stapling means disposed detachably for stapling to conveyed sheets, the stapling means being movably supported between an operation position for stapling conveyed sheets and a replacement position for detaching the stapling means from the apparatus, the stapling means comprising; a connection portion connected to the apparatus for receiving a control signal from the apparatus; a cable for transmitting the control signal from the connection portion to the stapling means; and an urging means for urging the cable toward the inner side of the stapling means.

Abstract: A sheet material conveying device being capable of conveying a folded sheet material that is discharged from an image forming apparatus for forming an image on a sheet material, include: a first conveying path for discharging the folded sheet as it is; a second conveying path branching out from the first conveying path a third conveying path, which branches out from the second conveying path and is connected with the first conveying path, for conveying the sheet material in an opposite direction to a conveying direction of the sheet material in the second conveying path; first switching means for selectively guiding the sheet material to either the first conveying path or the second conveying path; and second switching means for guiding the sheet material guided to the second conveying path to the third conveying path.

Abstract: Disclosed is a sheet post-processing device, including: a downstream side intermediate stacking unit having a pair of slide guides for supporting left and right edges of the sheet that is sent, the slide guides moving toward and away from each other so that the sheet is pressed against one of the slide guides that serves as a reference by the other slide guide to be positioned; a processing unit for processing the sheet positioned by the downstream side intermediate stacking unit; and a stacking unit for receiving the sheet that is dropped through a gap created between the slide guides, in which the pair of slide guides each have a bottom piece for supporting the edge of the sheet, and in which the bottom piece of the other slide guide is partially cut off to provide a remaining portion, the remaining portion making the gap between the bottom pieces wider on the upstream side than on the downstream side in the sheet conveying direction.

Abstract: A sheet treating apparatus including the first intermediate stacking portion for hitting an edge of a sheet in a transport direction against a wall to align the sheet, a pair of delivery rollers for delivering the sheet from the first intermediate stacking portion, the second intermediate stacking portion for carrying-in and supporting the sheet downstream of the pair of delivery rollers in the transport direction and aligning edges of the sheet in a cross direction perpendicular to the transport direction, a sheet stacking portion located below the second intermediate stacking portion in the gravitational direction, and a full load detecting unit for detecting full load of sheets on the sheet stacking portion, in which the full load detecting unit contacts an upper surface of sheets on the sheet stacking portion with a full load detecting flag, which has a pivotal fulcrum in a higher position than that of the pair of delivery rollers to detect a height of the upper surface, and does not perform full load det

Abstract: A sheet material conveying device being capable of conveying a folded sheet material that is discharged from an image forming apparatus for forming an image on a sheet material, include: a first conveying path for discharging the folded sheet as it is; a second conveying path branching out from the first conveying path; a third conveying path, which branches out from the second conveying path and is connected with the first conveying path, for conveying the sheet material in an opposite direction to a conveying direction of the sheet material in the second conveying path; first switching means for selectively guiding the sheet material to either the first conveying path or the second conveying path; and second switching means for guiding the sheet material guided to the second conveying path to the third conveying path.

Abstract: A sheet processing device of the invention has an upper conveying guide, being rotatable in the vertical direction, for guiding the upper surface of the sheet, a lower conveying guide, on which the sheets are stacked, for guiding the lower surface of the sheet, upper and lower sheet-discharging rollers, for discharging the sheet, on the downstream side of the upper conveying guide, an arm for shifting the upper sheet-discharging roller in the vertical direction, a cam for pushing the arm upward, a stapler for stapling the sheets stacked on the lower conveying guide, a link portion and a link lever for shifting the upper conveying guide upward when the arm is shifted upward by the cam, a reference wall for receiving the sheets, stacked on the lower conveying guide, and a sheet lift preventing member, which moves away from the sheet when the downstream end of the upper conveying guide is located at the lower position and which holds the sheet when the downstream end of the upper conveying guide is shifted upwar

Abstract: A cover for forming an outer appearance of a stapler unit for performing a stapling process to a sheet bundle serves also as a part of an outer shell of an apparatus body, and the stapler unit is provided selectively to the apparatus body movably between a position for stapling the sheet bundle and a position for replacing staple cartridges, to thereby make it possible to readily perform a jam process or staple replacement.

Abstract: A sheet after-treatment device equipped with a stapler main body which staples sheets fed between upper and lower jaws in an opened state with a staple by closing the upper and lower jaws, and a holder for holding the stapler main body, in which a sheet transport guide surface of an upstream-side portion of the holder and the lower jaw of the stapler main body are arranged in the area where the sheets are transported, and the sheet transport guide surface of the upstream-side portion of the stapler main body is situated above the lower jaw.

Abstract: The present invention relates to a bookbinding apparatus attached to face to an end face of a sheet bundle where the sheet bundle is formed of collected sheets on which images are formed by an image forming apparatus. The bookbinding apparatus comprises a container detachably attached to a body of the bookbinding apparatus and an adhesive sheet on a surface of which a hot melt type adhesive to be melt by a heating means is coated, the adhesive sheet being contained in the container as in a state that the adhesive sheet is wound in a roll shape.

Abstract: A sheet post-treating apparatus is provided with a discharged sheet stacking tray displaceably provided in a casing portion for stacking thereon sheets discharged from the casing portion, and a holding portion for holding the discharged sheet stacking tray in a first position and a second position overlying the first position, and is designed such that the sheets are stacked on the discharged sheet stacking tray when in the first position, and therefore, when the sheet post-treating apparatus is incorporated into a printer and a cartridge in the printer is to be interchanged with a cartridge cover opened, a user can retract the discharged sheet stacking tray to the second position to thereby interchange the cartridge.

Abstract: The present invention relates to a sheet processing apparatus having a stapling means disposed detachably for stapling to conveyed sheets, the stapling means being movably supported between an operation position for stapling conveyed sheets and a replacement position for detaching the stapling means from the apparatus, the stapling means comprising; a connection portion connected to the apparatus for receiving a control signal from the apparatus; a cable for transmitting the control signal from the connection portion to the stapling means; and an urging means for urging the cable toward the inner side of the stapling means.

Abstract: A sheet treating apparatus including the first intermediate stacking portion for hitting an edge of a sheet in a transport direction against a wall to align the sheet, a pair of delivery rollers for delivering the sheet from the first intermediate stacking portion, the second intermediate stacking portion for carrying-in and supporting the sheet downstream of the pair of delivery rollers in the transport direction and aligning edges of the sheet in a cross direction perpendicular to the transport direction, a sheet stacking portion located below the second intermediate stacking portion in the gravitational direction, and a full load detecting unit for detecting full load of sheets on the sheet stacking portion, in which the full load detecting unit contacts an upper surface of sheets on the sheet stacking portion with a full load detecting flag, which has a pivotal fulcrum in a higher position than that of the pair of delivery rollers to detect a height of the upper surface, and does not perform full load det

Abstract: A sheet processing apparatus including a stacking portion for stacking sheets, an alignment reference wall disposed in approximately parallel with a conveying direction of the sheet, an alignment moving wall for performing alignment by making an end portion of the sheet hit with the alignment reference wall, a processing mechanical section for carrying out binding with respect to the sheet bundle thus aligned, and a plurality of rotating pairs disposed in a widthwise direction approximately perpendicular to the conveying direction of the sheet for conveying the sheet bundle in a pinching manner.

Abstract: An aligning device movable to a first position constituting a first sheet stacking portion for supporting a delivered sheet and a second position in which the sheet is not supported is provided downstream of a pair of delivery rollers, and the pair of delivery rollers are designed to be capable of assuming a first state in which they are capable of delivering the sheet, and a second state in which rollers constituting the pair of delivery rollers are spaced apart from each other. When the pair of delivery rollers are in the first state and the aligning device is in the first position, a sheet aligning and stacking portion for making the alignment of the sheet by the aligning device possible is defined by the first stacking portion and the sheet transport path between a reference wall and the pair of delivery rollers.

Abstract: An image reader includes a first image-reader unit, mounted on a body of the image reader, for reading image information of an original document on a first image-reader section, a closing unit which is openably supported on the body of the image reader through a closing device, a second image-reader unit, mounted on the closing unit, for reading image information of an original on a second image-reader section, and a closed-state detector for detecting a closed state of the closing unit. The closed-state detector includes a photoemitter, a photodetector, and a light-blocking unit which blocks a light beam traveling from the photoemitter to the photodetector, by moving in operative association with the opening and closing operation of the closing unit.

Abstract: A cover for forming an outer appearance of a stapler unit for performing a stapling process to a sheet bundle serves also as a part of an outer shell of an apparatus body, and the stapler unit is provided selectively to the apparatus body movably between a position for stapling the sheet bundle and a position for replacing staple cartridges, to thereby make it possible to readily perform a jam process or staple replacement.

Abstract: An image reader includes a first image-reader unit, mounted on a body of the image reader, for reading image information of an original document on a first image-reader section, a closing unit which is openably supported on the body of the image reader through a closing device, a second image-reader unit, mounted on the closing unit, for reading image information of an original on a second image-reader section, and a closed-state detector for detecting a closed state of the closing unit. The closed-state detector includes a photoemitter, a photodetector, and a light-blocking unit which blocks a light beam traveling from the photoemitter to the photodetector, by moving in operative association with the opening and closing operation of the closing unit.

Abstract: The present invention relates to a sheet processing apparatus comprising an intermediate staking portion for aligning a sheet sent, a reference wall for positioning the sheet, a stapler form performing a binding operation with respect to a sheet bundle aligned by the reference wall, delivery means for delivering the sheet bundle from the intermediate stacking portion, a sheet stacking portion for stacking the sheet bundle and guide means provided above the sheet stacking portion and at an end portion on the stapler side of the end portions in the width direction of the sheet. The guide means supports an end portion on the stapler side of the sheet bundle when the sheet bundle is delivered from the delivery means in a staple mode in which the binding operation is preformed with respect to the sheet bundled.