A recording medium processing apparatus includes first teeth that are used for binding processing of a recording medium bundle; second teeth that move toward the first teeth and press the recording medium bundle located between the first teeth and the second teeth; and a control unit that moves the second teeth toward the first teeth to press the second teeth against the first teeth in a state in which there is no recording medium bundle between the first teeth and the second teeth.

A recording medium processing apparatus includes first teeth that are used for binding processing of a recording medium bundle; second teeth that move toward the first teeth and press the recording medium bundle located between the first teeth and the second teeth; and a control unit that moves the second teeth toward the first teeth to press the second teeth against the first teeth in a state in which there is no recording medium bundle between the first teeth and the second teeth.

A medium drying device includes a transport roller pair as a transport unit that transports a medium and a heat roller pair as one heating unit that heats the medium transported by the transport roller pair and is provided in a transport direction of the medium, in which the medium is configured to be transported to a heating area by the heat roller pair a plurality of times.

A printing system includes a book body printing section including a book body printing machine and outputting book bodies sequentially, and a cover printing section including a cover printing machine and outputting covers sequentially. The book body printing machine and the cover printing machine respectively receive printing order data indicating a printing order with regard to a plurality of jobs from a print control apparatus, and perform printing in the printing order indicated by the printing order data. The print control apparatus generates the printing order data, so that an inserting order in unit of job to a bookbinding machine of the book bodies output from the book body printing section coincides with an inserting order in unit of job to the bookbinding machine of the covers output from the cover printing section.

An example finisher includes a first portion extending in a vertical direction, a second portion including an entrance to receive paper as a finishing process target, and a finishing unit to perform a finishing process, the second portion extending from the first portion in a lateral direction, a stacker to receive paper discharged from the finishing unit and which extends in an opposite direction to the second portion based on the first portion, and an elevation driving unit provided on the first portion to elevate the stacker in a vertical direction.

A binding unit includes first and second movable bodies. The second movable body includes first and second shaft portions. A stapler is secured to the second movable body, and the second movable body is swingably supported with the stapler by the first movable body. A first groove includes a branch part between a middle area and one end area. A second groove branches off from the branch part and is parallel to the first groove. When in a first position, a movable guide portion guides the first shaft portion from the branch part to the second groove. When the first shaft portion moves to the second groove through the branch part, the movable guide portion swings from the first position to a second position. When the second shaft portion reaches the branch part, the movable guide portion in the second position guides the second shaft portion along the first groove.

A binding unit includes first and second movable bodies. The second movable body includes first and second shaft portions. A stapler is secured to the second movable body, and the second movable body is swingably supported with the stapler by the first movable body. A first groove includes a branch part between a middle area and one end area. A second groove branches off from the branch part and is parallel to the first groove. When in a first position, a movable guide portion guides the first shaft portion from the branch part to the second groove. When the first shaft portion moves to the second groove through the branch part, the movable guide portion swings from the first position to a second position. When the second shaft portion reaches the branch part, the movable guide portion in the second position guides the second shaft portion along the first groove.

An image forming apparatus includes an image forming portion, a fixing portion configured to perform a fixing process in which the fixing portion fixes the image and the powder adhesive to the sheet, and a bonding portion configured to perform a bonding process in which the bonding portion bonds the plurality of sheets to each other with the powder adhesive by using the heating member to heat and press the plurality of sheets, wherein P1<P2 is satisfied, where P1 (MPa) is a peak value of pressure received by the sheet in the fixing process, and P2 (MPa) is a peak value of pressure received by the sheet in the bonding process.

A sheet processing apparatus includes a stacking unit configured to stack a plurality of sheets, an alignment unit including a supporting portion on which the sheets are loaded, the alignment unit being configured to align positions of the sheets loaded on the supporting portion, and a bonding unit configured to bond the sheets loaded on the supporting portion to each other. The alignment unit is configured to align a position of the second sheet stack with the first sheet stack. The bonding unit is configured to heat and pressurize the second sheet stack aligned by the alignment unit such that sheets of the second sheet stack are bonded to each other with the adhesive and the first sheet stack and the second sheet stack are bonded to each other with the adhesive.

A sheet processing apparatus includes a stacking unit configured to stack a plurality of sheets, an alignment unit including a supporting portion on which the sheets are loaded, the alignment unit being configured to align positions of the sheets loaded on the supporting portion, and a bonding unit configured to bond the sheets loaded on the supporting portion to each other. The alignment unit is configured to align a position of the second sheet stack with the first sheet stack. The bonding unit is configured to heat and pressurize the second sheet stack aligned by the alignment unit such that sheets of the second sheet stack are bonded to each other with the adhesive and the first sheet stack and the second sheet stack are bonded to each other with the adhesive.