A sheet processing apparatus includes a rotating body pair capable of transporting a sheet in a first direction for nipping the sheet transported to a transport path thereby drawing the sheet for folding processing, and in a second direction for switching back the sheet to return to the transport path, a push member that pushes the sheet transported to the transport path to a nip portion of the rotating body pair, and a press member pressing one end portion of the sheet folded by the rotating body pair to guide, and including a press portion that presses the one end portion of the sheet in a direction of the transport path where the other end portion of the sheet exists, and a guide portion that guides the sheet pressed by the press portion to the guide face of the transport path where the other end portion of the sheet exists.

A sheet conveyance apparatus includes a controller controlling a driver to cause a guide to start rotation in a state in which a trailing end in a sheet conveyance direction of a preceding sheet conveyed by a roller pair having a first roller and a second roller such that the trailing end of the preceding sheet is moved from the position above a first guide to a position between a second guide and a sheet support by the rotation of the guide and that a succeeding sheet conveyed by the roller pair subsequently to the preceding sheet passes the position above the first guide after the rotation of the guide. The first roller is rotated by a driving force supplied from a driving source, and the guide rotates about a rotation axis of the first roller while rotating relatively to the first roller.

An image forming system includes a conveyance processing portion, a setting processing portion, an insertion processing portion, and an operation control portion. The conveyance processing portion executes a conveyance process to convey a plurality of sheets placed on a sheet placing portion, sequentially to a sheet stack portion. When the insertion timing to insert the insertion sheet comes during an execution of the conveyance process, the insertion processing portion executes an insertion process to convey a sheet from the sheet supply source of the insertion sheet to the sheet stack portion. The operation control portion is configured to control operations of an image forming apparatus during execution of a sheet bundle output process based on the sheet type of the insertion sheet conveyed in the insertion process that is included in the sheet bundle output process, the sheet bundle output process including the conveyance process and the insertion process.

A medium discharge includes a first tray having a first medium receiving surface, a second tray having a second medium receiving surface for receiving the medium discharged from the first tray, a discharge section that discharges the medium disposed on the first tray to the second tray, and a push-down portion that is located downstream of a downstream end of the first medium receiving surface in the medium discharge direction, and that is located at a place deviated from the discharge section in a width direction that is a direction intersecting with the medium discharge direction, and pushes down a part of an upstream end of the medium to be discharged in the medium discharge direction.

To provide an image forming apparatus having a sheet processing apparatus installed in an in-body space, capable of discharging sheets of different sizes without interfering with discharge operation of the sheet processing apparatus in a compact configuration. An image forming apparatus has a sheet binding unit disposed in an in-body space part thereof, a first conveying path for conveying the sheet discharged to the in-body space part toward the sheet binding unit, and a second conveying path for conveying the sheet discharged to the in-body space part toward a second stack tray that stacks thereon the sheet vertically below a first stack tray disposed outside the in-body space part. The second conveying path extends, inside the in-body space part, substantially horizontally between an image forming part and the sheet binding unit.

A post-processing apparatus includes a conveyor, a tray, a binder, and a binder mover. The conveyor conveys recording media on each of which an image is formed by an image forming apparatus. The tray holds the recording media conveyed by the conveyor. The binder binds the recording media on the tray with a plurality of staples in a cartridge. The binder mover includes a motor, a ratchet gear that receives a driving force of the motor to rotate in a forward direction or a reverse direction, a driving force transmitter that moves the binder toward one side in the main scanning direction as the ratchet gear rotates in the forward direction and moves the binder toward an opposite side in the main scanning direction as the ratchet gear rotates in the reverse direction, and a rotation limiter that moves between a rotation allowing position and a rotation limiting position.

A post-processing device includes a processing tray, an aligning plate, a transport section, a feeding section, and a pressing section. A sheet before being subjected to stapling processing by a stapler is to be mounted on the processing tray. The aligning plate aligns ends of a plurality of sheets. The transport section transports the sheet toward the aligning plate. The feeding section is provided between the transport section and the aligning plate and feeds the sheet in a transport direction. The pressing section is provided between the transport section and the aligning plate and applies, to the sheet, a pressing force having a component in a direction opposite from the transport direction. Further, the pressing section applies the pressing force to the sheet before the feeding section applies a feeding force to the sheet.

A post-processing apparatus that performs post-processing on paper in which an image is formed, the apparatus including: a paper cutter that cuts the paper in which the image is formed; a reader that reads the paper cut by the paper cutter; and a hardware processor that determines whether a cutting position of the paper cut by the paper cutter is good or not based on a read result read by the reader, wherein the hardware processor determines whether the cutting position of the paper in which partial cutting is performed is good or not, the partial cutting being cutting a portion of the paper by the paper cutter.

A reading apparatus includes a reader, a conveyor, motors and a hardware processor. The reader reads a surface of a recording medium with an image formed. The conveyor includes rollers disposed along a conveyance path that passes through a reading area of the reader, and conveys the recording medium being laid across the rollers. The motors rotate the rollers. The hardware processor controls operations of the motors such that the rollers located farther downstream in a conveyance direction of the recording medium rotate faster. As to at least one motor of the motors, the hardware processor switches between and performs a first control to adjust a rotational speed and a second control to adjust a torque, depending on an operating state of the motor.

An enclosing apparatus for enclosing an enclosure into an envelope at an enclosing position includes a conveyance roller that conveys the envelope to the enclosing position and an envelope conveyance path through which the envelope is conveyed. An enclosing support is disposed in the envelope conveyance path and supports enclosing of the enclosure into the envelope. The enclosing support retracts a flap of the envelope from the envelope conveyance path while the conveyance roller conveys the envelope to the enclosing position.