A medium feeding device includes a medium placing portion, a feeding roller that feeds paper, a medium movement detecting portion that is positioned on a placing region of the paper of the medium placing portion in a medium feeding direction and is capable of detecting movement of the paper being fed in a width direction intersecting the medium feeding direction, and a controller that stops feeding of the paper in a case in which a physical quantity relating to movement of paper in the width direction exceeds a predetermined threshold based on a detected result by the medium movement detecting portion.

An image reading apparatus includes a conveying unit configured to convey a document, a reading unit configured to read an image on the conveyed document, a measurement unit configured to measure a distance from an upper portion of a sheet feeding port for the document to an upper surface of the document, and a control unit configured to, according to the distance measured by the measurement unit, suspend the conveyance of the document by the conveying unit. According to a user operation for reading again the document of which the reading is suspended by the control unit, the conveying unit conveys the document and the reading unit reads the image on the document, and while the document of which the conveyance is suspended is conveyed again, the control unit does not suspend the conveyance of the document based on the distance measured by the measurement unit.

A printing system includes a printing apparatus that prints an image on a sheet, a sheet processer that executes sheet processing, and a sheet detection sensor that detects a sheet on which the sheet processing is performed not in association with the printing of an image, where the printing of an image is restricted in response to detection of a sheet by the sheet detection sensor.

An image reading apparatus and an image reading method is provided. The apparatus and method are capable of efficiently performing a check process for determining whether a document has been forgotten after image reading only in an appropriate case. Whether a process for detecting a forgotten document is necessary to be performed is determined prior to the process every time after a reading process for reading an image of a single page.

What is disclosed is a system and method for detecting a folded page in a digital image of a scanned document. In one embodiment, the present method involves receiving a digital image of a document which has been converted to a digitized form using a document scanning device. The digital image is segmented horizontally and vertically to obtain a plurality of image segments. An edge profile is generated for the horizontal and vertical segments. A determination is then made, based on a comparison of the profiles, whether a page fold exists in the digital image. If a page fold is determined to exist in the digital image, the user is notified and the digital image is not sent to a print engine. Otherwise, the digital image is printed.

An image reading apparatus includes feeding rollers configured to come into contact with the lowermost medium of media mounted on a medium mounting section and transport the medium toward a downstream side, separation rollers configured to nip and separate the medium with the feeding rollers therebetween, and a medium detection section configured to detect the medium at a detection position closer to an edge side of the medium than the nip positions of the feeding rollers and the separation rollers in the medium width direction and the detection position overlapping one of the feeding rollers and the separation rollers in a side view of the medium transport path.

An image processing apparatus includes a processor configured to, in a case of controlling an image capturer to image a document placed in a placement area without an instruction from a user in response to detection of placement of the document in the placement area, avoid imaging of the document placed in the placement area if the document placed in the placement area is identical to a document imaged last time.

An image reading apparatus reads an original image of an original, which is conveyed along a conveyance path, using a scanner unit and a CCD sensor unit. A separation sensor, a lead sensor, and a sheet discharge sensor, which are provided to the conveyance path, detect occurrence of a jam. A restarting method for reading processing of the original after the occurrence of the jam includes a first restarting method of re-placing all of the originals, which have been fed, on an original tray and a second restarting method of re-placing only an unread original on the original tray, and is set by a user. In a case where the second restarting method is set, the restarting method is determined from any one of the first restarting method and the second restarting method based on a discharged length of the original having been discharged to a sheet discharge tray.

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.

A printing system includes a printing apparatus that prints an image on a sheet, a sheet processer that executes sheet processing, and a sheet detection sensor that detects a sheet on which the sheet processing is performed not in association with the printing of an image, where the printing of an image is restricted in response to detection of a sheet by the sheet detection sensor.