A brochure is made by folding a single sheet of paper along a plurality of parallel longitudinal fold lines to make an interim piece. The interim piece is conveyed in the direction of the longitudinal fold lines, and folded in a right-angle direction transverse to the first direction, along transverse fold lines perpendicular to the longitudinal fold lines. A pouch is placed inside of the interim piece without adhesive, as the interim piece is folded, and the interim piece is sealed to complete the brochure. The pouch is preferably placed over one of the transverse fold lines. A label can be applied to the brochure if desired.

A brochure is made by folding a single sheet of paper along a plurality of parallel longitudinal fold lines to make an interim piece. The interim piece is conveyed in the direction of the longitudinal fold lines, and folded in a right-angle direction transverse to the first direction, along transverse fold lines perpendicular to the longitudinal fold lines. A pouch is placed inside of the interim piece without adhesive, as the interim piece is folded, and the interim piece is sealed to complete the brochure. The pouch is preferably placed over one of the transverse fold lines. A label can be applied to the brochure if desired.

A sheet post-processing apparatus includes a first sheet conveyance passage, a second sheet conveyance passage, a sheet folding portion, and a merging portion. The second sheet conveyance passage branches off from a branch portion on the first sheet conveyance passage. The merging portion is located downstream of the branch portion on the first sheet conveyance passage, and there a folding conveyance passage of the sheet folding portion merges with the first sheet conveyance passage. When performing a folding process on a sheet, a controller guides the sheet conveyed from a sheet introduction port into the first sheet conveyance passage via the branch portion to the second sheet conveyance passage, then reverses the conveyance direction to guide the sheet to the sheet folding portion to perform the folding process, and passes the sheet through the folding conveyance passage, merges the sheet into the first sheet conveyance passage at the merging portion.

A sheet post-processing apparatus includes a first sheet conveyance passage, a second sheet conveyance passage, a sheet folding portion, and a merging portion. The second sheet conveyance passage branches off from a branch portion on the first sheet conveyance passage. The merging portion is located downstream of the branch portion on the first sheet conveyance passage, and there a folding conveyance passage of the sheet folding portion merges with the first sheet conveyance passage. When performing a folding process on a sheet, a controller guides the sheet conveyed from a sheet introduction port into the first sheet conveyance passage via the branch portion to the second sheet conveyance passage, then reverses the conveyance direction to guide the sheet to the sheet folding portion to perform the folding process, and passes the sheet through the folding conveyance passage, merges the sheet into the first sheet conveyance passage at the merging portion.

A sheet processing apparatus includes a roller pair configured to convey a sheet, a sheet bundle conveyer configured to convey a sheet bundle to the roller pair, and circuitry configured to cause the sheet bundle conveyer to contact leading edges of sheets of the sheet bundle to the roller pair and cause the roller pair to rotate in reverse to align the leading edges of the sheets of the sheet bundle.

A sheet processing apparatus includes a roller pair configured to convey a sheet, a sheet bundle conveyer configured to convey a sheet bundle to the roller pair, and circuitry configured to cause the sheet bundle conveyer to contact leading edges of sheets of the sheet bundle to the roller pair and cause the roller pair to rotate in reverse to align the leading edges of the sheets of the sheet bundle.

A sheet processing device includes a first conveyance passage, a first conveyor, a second conveyor, a folder, a second conveyance passage, and circuitry. The circuitry is configured to (1) cause the first conveyor and the second conveyor to convey the sheet nipping the sheet to warp the sheet between the first conveyor and the second conveyor, (2) guide the warped sheet to form a first fold on the sheet by the folder and circulate the sheet to the first conveyance passage, (3) cause the first conveyor and the second conveyor to convey the sheet while nipping the sheet again to warp the sheet between the first conveyor and the second conveyor, (4) guide the warped sheet to form a second fold on the sheet by the folder, and (5) cause the second conveyor to convey the sheet with the first fold and the second fold.

A sheet processing device includes a first conveyance passage, a first conveyor, a second conveyor, a folder, a second conveyance passage, and circuitry. The circuitry is configured to (1) cause the first conveyor and the second conveyor to convey the sheet nipping the sheet to warp the sheet between the first conveyor and the second conveyor, (2) guide the warped sheet to form a first fold on the sheet by the folder and circulate the sheet to the first conveyance passage, (3) cause the first conveyor and the second conveyor to convey the sheet while nipping the sheet again to warp the sheet between the first conveyor and the second conveyor, (4) guide the warped sheet to form a second fold on the sheet by the folder, and (5) cause the second conveyor to convey the sheet with the first fold and the second fold.

A sheet folding apparatus includes a conveyance member to convey a sheet from an ejection member at a first speed lower than a conveyance speed by the ejection member or a second speed substantially same as or higher than the conveyance speed; a registration member; a pair of first and second rollers to rotate in forward and reverse directions; a plurality of folding rollers downstream from the second roller, to rotate in forward and reverse directions to fold the sheet; and circuitry to determine whether the sheet is equal to or smaller than a reference length from an exit position from the ejection member to a folding start position downstream from the pair of the first and second rollers. The circuitry performs first-speed folding when the sheet is equal to or smaller than the reference length and performs second-speed folding when the sheet is longer than the reference length.

A sheet folding apparatus includes a conveyance member to convey a sheet from an ejection member at a first speed lower than a conveyance speed by the ejection member or a second speed substantially same as or higher than the conveyance speed; a registration member; a pair of first and second rollers to rotate in forward and reverse directions; a plurality of folding rollers downstream from the second roller, to rotate in forward and reverse directions to fold the sheet; and circuitry to determine whether the sheet is equal to or smaller than a reference length from an exit position from the ejection member to a folding start position downstream from the pair of the first and second rollers. The circuitry performs first-speed folding when the sheet is equal to or smaller than the reference length and performs second-speed folding when the sheet is longer than the reference length.