A sheet conveying apparatus includes a pair of regulating units both of which are movable in a width direction in a document placement unit, a detection processing unit that detects a separation distance between the pair of regulating units, a restriction processing unit that restricts execution of a specific process of conveying a document when a difference between the separation distance detected at a specific timing and a reference distance exceeds a threshold value, and a cancellation processing unit that cancels the restriction on execution of the specific process when the separation distance detected after the restriction on execution of the specific process by the restriction processing unit is the same as the separation distance detected before the detection timing of the separation distance and on or after the specific timing.

A scanner includes the following features. A first driven roller sandwiches a document together with a first drive roller and is capable of rotating in a driven manner. A second driven roller sandwiches a document together with a second drive roller and is capable of rotating in a driven manner. A driving unit rotationally drives the first drive roller and the second drive roller. A transmission unit transmits a rotational force from one of the first driven roller and the second driven roller to another of the first driven roller and the second driven roller.

A sheet conveying device includes a sheet placement table, a sheet discharge table, a conveyance mechanism, raising/lowering mechanism, and a raising/lowering control portion. The sheet discharge table is located below the sheet placement table. The conveyance mechanism conveys a sheet placed on the sheet placement table onto the sheet discharge table via an execution position at which image processing is executed by an image processing portion. The raising/lowering mechanism raises and lowers the sheet placement table. The raising/lowering control portion controls the raising/lowering mechanism to raise and lower the sheet placement table to a target position that is determined in accordance with a size of the sheet on the sheet discharge table.

An image processing apparatus includes a motor, a sheet feeding roller, a separation roller, a conveyance roller, a first clutch set provided in a transmission path of a driving force transmitted from the motor to the sheet feeding roller, and a second clutch set provided in a transmission path of a driving force transmitted from the motor to the separation roller. The first clutch set includes a first one-way clutch and a first two-way clutch, and the second clutch set includes a second one-way clutch and a second two-way clutch. A maximum value of a first play angle set between a first transmission portion and a first transmitted portion in the first two-way clutch is larger than a maximum value of a second play angle set between a second transmission portion and a second transmitted portion in the second two-way clutch.

Provided is an image reading apparatus in which at least part of a feeding roller that feeds out a document placed on a document support unit to a first transport roller is present within a region of the first transport roller in an apparatus depth direction and a position at which the feeding roller and a document are brought into contact with each other is present within the region of the first transport roller in the apparatus depth direction.

A control portion controls a reading portion and a discharge portion, and when a document is placed in a document placement portion, a transport path transports the document, and the reading portion reads an image of the document. When the discharge portion discharges the document for which reading is completed by the reading portion, a document receiving portion receives the document discharged by the discharge portion. The document receiving portion has a first region that overlaps the document placement portion when seen in a vertical direction, and a second region that does not overlap the document placement portion when seen in the vertical direction, and the discharge portion discharges the document so that at least part of the document is placed on the second region.

An image forming apparatus includes a conveyor, an image former, and a reading device. The conveyor conveys a medium in a conveyance direction. The image former forms an adjustment pattern on one side of the medium conveyed by the conveyor. The reading device downstream from the image former in the conveyance direction reads the adjustment pattern on the one side of the medium conveyed by the conveyor to generate read data. The adjustment pattern includes a first line segment and a second line segment that extend in directions different from each other and each are inclined with respect to the conveyance direction.

An image reading apparatus includes an opening/closing unit, an output gear, an apparatus main body having an image reading unit, a retard roller, and an input gear, and includes an opening/closing unit having a pickup roller, a feed roller, a feed roller shaft, a drive shaft, and an adjustment support portion. The feed roller shaft supports the feed roller. The drive shaft is connected at one end side thereof to the feed roller shaft via a coupling. The feed roller shaft is removable from the drive shaft. The input gear meshes with the output gear to transmit a driving force to the feed roller where the opening/closing unit is closed, and is separated from the output gear where the opening/closing unit is opened. The adjustment support portion supports the other end side of the drive shaft to adjust a position for supporting the drive shaft.

A recording apparatus includes: a recording unit that performs recording on a medium; a medium discharging section that discharges the medium on which recording has been performed; a medium receiving section that receives the medium discharged by the medium discharging section; a face-down discharge path that guides, to the medium discharge section, the recorded medium with a recorded side thereof facing downward; a document movement path that is provided at an upper part of a housing constituting an outer casing of the recording apparatus and along which a document moves; and a reading unit provided in the document movement path to read the document. The medium receiving section also serves as a support tray that supports the document to be inserted into the document movement path or the document exiting from the document movement path.

Examples of systems having scanners are described. In an example, a system includes a 3-channel scanner and a 1-channel scanner.