An ultrasonic device includes an ultrasonic element configured to perform at least one of transmission of an ultrasonic wave along a first axis and reception of the ultrasonic wave input along the first axis, and a protective member provided on the first axis to cover the ultrasonic element. The protective member has a first surface provided with at least one hole through which the ultrasonic wave travelling along the first axis passes, and a second surface intersecting with the first surface and provided with a first opening through which foreign matter entering from the at least one hole is discharged.

A carrier sheet detecting unit is located upstream a reading unit in a transport direction in which transport is performed, and can detect a carrier sheet transported. Then, a control unit can determine that the carrier sheet is transported based on a detection result of the carrier sheet detecting unit. Additionally, the reading unit can read an original document sandwiched by the carrier sheet transported, the control unit can determine that the carrier sheet is transported based on a reading result of the reading unit. Then, the control unit switches between adopting the detection result of the carrier sheet detecting unit and adopting the reading result of the reading unit, and determines that the carrier sheet is transported.

A reading apparatus includes a reading part that reads information of a document, a housing that accommodates the reading part, a document feeding port through which the document is fed, a cover member disposed on the housing to be displaced to an open position at which the document feeding port is open and a closed position at which the document feeding port is closed, a drive source that displaces the cover member to the open position and the closed position, a position detection mechanism that detects a position of the cover member, and a control part, wherein the control part is configured to displace the cover member to the closed position by the drive source when a time during which reading by the reading part is not performed exceeds a predetermined time, and the position detection mechanism detects that the cover member is at the open position.

A reading device includes a reading unit configured to read a document, and a control unit configured to acquire image data including a document region and a background region from the reading unit. The control unit acquires document information about a document, and sets, based on the document information, a background range indicating a range of a luminance value regarded as the background region.

A conveyance apparatus includes a separation unit configured to separate and convey a sheet, a detection unit configured to detect a floating of the sheet passing through the separation unit, and a control unit configured to stop separate conveyance by the separation unit if the detection unit detects the sheet for not less than a predetermined time and/or a predetermined count.

An image forming apparatus includes a sensor configured to detect an original, a nonvolatile storage that includes a semiconductor area, a setting unit configured to execute a setting for dividing the semiconductor area into a plurality of areas, and a controller configured to execute Trim processing on the divided areas in response to passing of a predetermined time period while the image forming apparatus is in a standby state. The controller is configured to stop the Trim processing based on a detection of the original detected by the sensor while the Trim processing is executed.

An image scanning apparatus includes a sheet loading unit, a pickup roller, a first conveying roller, a detecting unit, a first stepping motor, a second conveying roller, a second stepping motor, a scanning unit, and a control unit that starts driving of the second stepping motor after performing phase matching of the second stepping motor. The control unit starts driving of the first stepping motor without performing phase matching of the first stepping motor. When an instruction to start scanning is input, the control unit starts the phase matching of the second stepping motor. When the detecting unit detects the document, the control unit starts driving of the first stepping motor after completion of the phase matching of the second stepping motor. When the detecting unit detects no document, the control unit starts driving of the first stepping motor before completion of the phase matching of the second stepping motor.

An automatic document feeder, which is included in an image reading device and an image forming apparatus, includes first and second document trays, a document output tray, a document conveying passage, multiple document conveying bodies, a drive source, a detector, and a controller. The multiple document conveying bodies include a document holding and conveying body to convey and hold the original document sheet on the second document tray. On detection of the original document sheet on the second document tray while conveying a different original document sheet from the first document tray, the controller stops feeding the different original document sheet, causes the different original document sheet downstream from the document holding and conveying body in a document conveying direction to be conveyed to the document output tray, and stops the drive source after the different original document has been conveyed to the document output tray.

A multifunction apparatus includes a reading mechanism including a document discharge port configured to discharge a document, a recording mechanism including a medium discharge port configured to discharge a recording medium, and a control unit, and a path through which a leading end of the recording medium discharged from the medium discharge port passes and the document discharged from the document discharge port have such a positional relationship to intersect with each other at an intersecting position, and when the leading end of the recording medium is discharged from the medium discharge port in a stop state where the document discharged from the document discharge port blocks the path of the leading end of the recording medium discharged from the medium discharge port, the control unit performs a predetermined operation for canceling the stop state before causing the leading end of the recording medium to reach the intersecting position.

A document feeder includes an apparatus body to which a document feed unit is attached, a sheet feed tray that moves up and down toward the document feed unit, an open/close cover attached openably and closably to the apparatus body and opens the document transport path and the document feed unit when opened, and a unit pressing arm attached to the open/close cover. When the open/close cover is closed, the unit pressing arm presses the document feed unit toward the sheet feed tray.