A multi-function device (MFD) is disclosed. For example, the MFD includes a communication interface to establish a communication path with an authentication server, a user interface to receive document control information for a document to be generated, a processor, and a non-transitory computer-readable medium storing a plurality of instructions. The instructions when executed by the processor cause the processor to generate a machine readable code that contains the document control information for the document and print the machine readable code onto the document that is printed by the MFD.

A multi-mode scanning device for scanning an original includes a non-transparent element, a first light source, a second light source and an optical module. The first light source outputs visible light to irradiate the non-transparent element and the original to generate first light and second light, respectively. The second light source outputs invisible light to irradiate a combination of the non-transparent element and the original to generate third light and fourth light. The optical module receives the first light, the second light, the third light and the fourth light and generates sensing signals representative of visible light information and invisible light information of the original. The original is disposed between the non-transparent element and the optical module. The first light source and the optical module are disposed on a same side of the non-transparent element.

An image processing device and an amount-of-characteristic detecting method. The image processing apparatus includes a first image processing device to process an invisible image of an object, a second image processing device to process a visible image of the object, and a controller to control the first image processing device and the second image processing device. The first image processing device includes a first skew detector to detect a skew of the object from the invisible image of the object. The second image processing device includes a second skew detector to detect the skew from the visible image of the object, and circuitry to adjust the skew of the object based on a first result of skew detection performed by the first skew detector of the first image processing device or a second result of skew detection performed by the second skew detector of the second image processing device.

A non-transitory computer-readable medium stores computer-readable instructions executable by a processor of an information processing device that includes a user interface and a display. The instructions are configured to, when executed by the processor, cause the information processing device to accept, via the user interface, an operation to specify a rearrangement condition for a plurality of pieces of image data to be obtained, obtain image data of a single sheet, determine an arrangement order for arranging first image data and second image data in accordance with the rearrangement condition specified by the accepted operation, the first image data being image data of one or more sheets obtained earlier than the second image data, the second image data being the image data of the single sheet, and display, on the display, images contained in the first image data and the second image data, to be arranged in the determined arrangement order.

A method for printing defect detection includes processing and analyzing a difference image obtained by comparing an image scanned with a verifier to a reference image. The detected defects are grouped, and the grouping is refined. Confidence level values are then assigned to the refined groups, and analysis is performed to determine if one or more servicing actions should be taken.

A predetermined image correction process is automatically performed on an image, and information for identifying that the predetermined image correction process has been performed is displayed in a state that an image having undergone the predetermined image correction process is being displayed.

An image scanning device includes a casing, a paper feeding wheel, a transparent plate, a light bar, and an elastic support member. The transparent plate includes a first surface and a second surface, and the first surface faces the paper feeding wheel. The light bar is located on the second surface of the transparent plate and includes a plurality of light-emitting elements. A position at which the paper feeding wheel is tangent to the first surface defines a tangent position, a position at which the light-emitting elements are projected onto the first surface in a normal direction of the first surface defines a scanning position, and a scanning spacing exists between the tangent position and the scanning position. The elastic support member pushes the light bar and the transparent plate toward the paper feeding wheel. An image scanning equipment with an image scanning device is also provided.

An image reading apparatus including: a conveyor that conveys a sheet on which an image is formed by an image forming apparatus; a reader that reads the sheet conveyed by the conveyor, by using a contact image sensor; and a first hardware processor that extracts an edge of the sheet by analyzing a read image by the reader, calculates a blur amount of the edge based on the extracted edge, and calculates a curl amount of the sheet based on the calculated blur amount.

A reading device includes a carriage movable in a sub-scanning direction, an optical sensor mounted on the carriage, the optical sensor being configured to scan an object placed on a contact glass, a reference scale used as a reference when a dimension of the object is computed based on an image obtained as the optical sensor scans the object, a flat gauge to be scanned by the optical sensor to calculate a corrective value used to correct the image obtained by the optical sensor, and circuitry to calculate the corrective value based on a scanned image including the reference scale and the flat gauge obtained by the optical sensor, and correct, based on the corrective value, a measurement image including an image of the object and an image of the reference scale obtained by the optical sensor and compute the dimension of the object based on the corrected measurement image.

A print media detection apparatus may include a movable scanner bar for scanning media, a feeder tray for supplying the print media, a print media indicator and a controller. The print media indicator may include a first portion to interact with the print media within the feeder tray and a second portion coupled to the first portion to move in response to movement of the first portion. The scanner bar is to sense the second portion of the media indicator. The controller is to determine a characteristic of the print media within the feeder tray based upon sensing of the second portion by the scanner bar.