A medium transport device includes a feeding roller that feeds a recording medium, a transport roller that transports the recording medium toward a recording head, and a transport motor which is a common driving source for the feeding roller and the transport roller. The medium transport device includes a power transmission mechanism that transmits power of the transport motor to the feeding roller, and a control section that controls a current of the transport motor. The control section measures a current value flowing through the transport motor during driving as a measured current value, and adds a predetermined offset value to the measured current value to set a second limit value as a limit value of the current supplied to the transport motor.

A sheet supporting apparatus includes first and second units. The first unit includes a first housing, first and second lock portions, a first shaft configured to be supported rotatably with respect to the first housing and to turnably support the first lock portion, and a second shaft configured to be supported rotatably with respect to the first housing and to turnably support the second lock portion. The second unit includes a second housing and first and second engagement portions provided in the second housing and configured to engage respectively with the first and second lock portions. The first and second shafts are disposed such that extension lines of rotational axes of the first and second shafts cross with each other in a plan view.

A paper feeding parameter management system may include air paper feeding devices and a management device. Each of the air paper feeding devices may be provided with an air paper feeder which may feed paper by blowing air and by absorption to paper and which may be provided with a paper feeding parameter capable of being switched. Each of the air paper feeding devices may be provided with a paper type information obtaining unit and a hardware processor. The paper type information obtaining unit may obtain paper type information of paper to be fed. The hardware processor (i) may adjust the paper feeding parameter of the air paper feeder and (ii) may transmit the paper type information, device configuration information regarding a device configuration of the air paper feeding device, and the adjusted paper feeding parameter to the management device.

A recording apparatus includes a recording section configured to perform recording onto a medium, a facing section facing a recording surface of a medium at a discharge position where the medium recorded by the recording section is discharged, and a light emitter configured to emit light toward the recording surface. The facing section includes an optical member disposed at a position where the light emitted by the light emitter enters, the optical member being configured to pass the incident light toward at least the recording surface.

A sheet conveying apparatus includes: a casing provided with a first conveying path and a second conveying path; a first feeding tray provided in the casing and having a first supporting surface that supports a sheet; a supporting member that supports the first feeding tray from below in the casing; a first feeding section provided above the first supporting surface; a first guide member having a first guide surface to guide the sheet fed from the first feeding tray; a second feeding tray provided below the supporting member in the casing and having a second supporting surface that supports a different sheet; a second feeding section provided above the second supporting surface; a second guide member having a second guide surface to guide the different sheet fed from the second feeding tray; and a frame made of metal and being installed on a lower surface of the supporting member.

A sheet conveying apparatus includes: a casing provided with a first conveying path and a second conveying path; a first feeding tray provided in the casing and having a first supporting surface that supports a sheet; a supporting member that supports the first feeding tray from below in the casing; a first feeding section provided above the first supporting surface; a first guide member having a first guide surface to guide the sheet fed from the first feeding tray; a second feeding tray provided below the supporting member in the casing and having a second supporting surface that supports a different sheet; a second feeding section provided above the second supporting surface; a second guide member having a second guide surface to guide the different sheet fed from the second feeding tray; and a frame made of metal and being installed on a lower surface of the supporting member.

An image forming apparatus includes a scraper, in contact with an end roller which is at least one of a plurality of rollers, to collect a substance adhering to the end roller, a cleaning unit that holds the end roller and the scraper, and an linking unit that moves the cleaning unit in the axial direction of the end roller in conjunction with the movement of a sheet-width regulating plate.

An image forming apparatus includes a scraper, in contact with an end roller which is at least one of a plurality of rollers, to collect a substance adhering to the end roller, a cleaning unit that holds the end roller and the scraper, and an linking unit that moves the cleaning unit in the axial direction of the end roller in conjunction with the movement of a sheet-width regulating plate.

An image forming apparatus includes a paper feed device and an image forming apparatus main body including a paper feed cassette removable from the image forming apparatus main body and including an image forming unit. The paper feed cassette stores a recording material, and the image forming unit forms an image on the recording material. The paper feed device allows the image forming apparatus main body to be stacked on the paper feed device below the paper feed cassette. The paper feed device is provided with a coupling section. In a space formed in a case where the paper feed cassette is removed from the image forming apparatus main body, the coupling section is fixed to the image forming apparatus main body by a fixing unit to couple the image forming apparatus main body and the paper feed device together.

An image forming apparatus includes a paper feed device and an image forming apparatus main body including a paper feed cassette removable from the image forming apparatus main body and including an image forming unit. The paper feed cassette stores a recording material, and the image forming unit forms an image on the recording material. The paper feed device allows the image forming apparatus main body to be stacked on the paper feed device below the paper feed cassette. The paper feed device is provided with a coupling section. In a space formed in a case where the paper feed cassette is removed from the image forming apparatus main body, the coupling section is fixed to the image forming apparatus main body by a fixing unit to couple the image forming apparatus main body and the paper feed device together.