An image forming apparatus is provided. The image forming apparatus according to an embodiment includes a paper-feeding device configured to accommodate paper, a print engine configured to form an image on paper supplied from the paper-feeding device, and a discharging device configured to discharge paper on which an image is formed by the print engine, wherein the paper-feeding device comprises a pick-up roller in a cylindrical shape configured to pick up paper loaded in a tray, a driving shaft configured to support the pick-up roller to idly rotate, and rotate in a predetermined direction, a solenoid configured to selectively rotate the driving shaft; and a power transmission member configured to selectively provide a driving force of the driving shaft to the pick-up roller, the power transmission member being coupled to or spaced apart from the pick-roller, wherein the power transmission member is engaged with the pick-up roller within a predetermined rotational range of the driving shaft.

Provided is an image reading apparatus in which a setting screen is displayed upon detecting that a document is placed on the document tray. In a case where a document is placed on an automatic document conveyance device, if a paper jam occurs while using the automatic document conveyance device, a screen of a paper jam is preferentially displayed even when a setting of automatically displaying a selection screen of a sheet thickness is set at the time. This prevents a specific screen desired to be continuously displayed from being hidden upon detecting that a document is placed on a document tray.

A sheet reading apparatus includes a sheet table on which a sheet is placed, a conveyor configured to convey the sheet, a reading guide configured to guide the sheet conveyed by the conveyor, and a reading device configured to read a shadow of the sheet conveyed by the conveyor, for detection of an inclination of the sheet. The sheet reading apparatus further includes a transparent member disposed at a position on a reading line of the reading device. The position on the reading line is withdrawn from the sheet and adjacent to the reading guide.

An image reading apparatus includes a transportation unit configured to transport a document; a reading unit configured to read the document transported by the transportation unit; a medium placement unit which is positioned upstream of the reading unit in the transportation, and on which the document and a setting sheet that includes setting information for setting a condition of reading processing of the document are placed; a detection unit which is disposed in the medium placement unit, and is configured to detect the setting information from the setting sheet placed on the medium placement unit; and a control unit configured to control the reading processing, in which the control unit sets the condition of the reading processing based on the setting information detected by the detection unit, and executes, under the condition that is set, the reading processing including reading of the document by the reading unit.

A document reader includes a reading unit that reads an image of a document medium, a second driving roller pair that nips and transports the document medium downstream of a read-enabling position of the reading unit, and a control unit that controls rotation of the second driving roller pair. The control unit stops the rotation of the second driving roller pair in a state in which the document medium is not positioned in the read-enabling position and in a state in which the document medium is nipped by the second driving roller pair.

A media supplying apparatus includes a first support portion, a second support portion, a housing portion, and a holding portion. The first support portion has a first supporting surface for supporting a paper sheet, is inclinably provided, and when inclined from a non-use state, switches to a use state. The second support portion has a second supporting surface that supports the paper sheet, and is disposed upstream of the first support portion in the use state in a supply direction of the paper sheet. The housing portion is, inclinably toward an upstream of the first supporting portion in the supply direction, provided, and retractably houses the second support portion. The holding portion holds the first support portion and the housing portion in an inclination orientation so that the first supporting surface and the second supporting surface are aligned in the supply 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.

An image reading apparatus includes a rotatable feeding member, an image portion, a feeding guide, a first driven rolling member, and a second driven rolling member. The first driven rolling member and a second driven rolling member provided downstream of the first driven rolling member with respect to a sheet feeding direction are provided in overlapping directions as seen in an axial direction of the rotatable feeding member and are provided in non-overlapping directions as seen in the sheet feeding direction.

An image reading apparatus includes a medium mounting portion configured to mount a medium; a feeding means configured to feed a medium from the medium mounting portion; at least one edge guide each configured to regulate a corresponding one of at least one medium width direction edge of the medium having been mounted on the medium mounting portion; a reading means configured to read the medium and disposed on a further downstream side than the at least one edge guide in the medium feeding direction; and at least one medium detection means configured to detect the medium and disposed on a further downstream side than the at least one edge guide in the medium feeding direction and further outside in the medium width direction than at least one edge regulation position for the edge regulation by the at least one edge guide.

In a printer, a controller controls a printing portion to execute a sample print to print on a sheet a plurality of barcodes. Each of the plurality of barcodes is represented by a received barcode data and printed in a different printing condition. The controller controls a reading portion to read the plurality of barcodes printed on the sheet in the sample print process to obtain a plurality of sets of scan data corresponding to respective ones of the plurality of barcodes. The controller performs a quality determination process to determine qualities of the plurality of printed barcodes based on the respective ones of the plurality of sets of scan data, and a printing condition setting process to set a printing condition based on the qualities determined in the quality determination process. The set printing condition is to be used to print a barcode by the printing portion.