Systems and methods for detecting the presence of metallic objects in media to be conveyed in a medium transport system are disclosed. One or more induction sensors are included in the medium transport system to detect the presence of metal in the transported media, with detection signals sent from the sensors to a system processing unit. An ultrasonic detector is employed in some embodiments to output another detection signal. One or more microphones may also be included, for detecting the sound created as the medium is being transported. The system processing unit analyzes various detection signals and analyzes computed sound values from the microphones, to determine the presence and location of metal in the media. A position jam detector may assist in determining jams of the media along the medium transport path.

An inspection apparatus displays a first plurality of inspection levels in a case where a first image forming apparatus is connected to the inspection apparatus. The inspection apparatus displays a second plurality of inspection levels in a case where a second image forming apparatus is connected to the inspection apparatus. An upper limit for the second plurality of inspection levels is higher than an upper limit for the first plurality of inspection levels. The inspection apparatus obtains information indicating a selection result of selecting the inspection level. The inspection apparatus determines an inspection standard based on the information. A display displays an inspection level that corresponds to the inspection standard used to determine an inspection result for an inspection item such that the inspection level is selectable from among a plurality of inspection levels.

An image processing apparatus comprises a scanner section and an area determination section. The scanner section reads the light reflected from an original document after the light penetrates a light diffusion sheet to output first image data, wherein the light diffusion sheet has a surface for diffusing the light reflected from the original document including a mirror reflection area; and the area determination section determines the mirror reflection area with respect to the first image data output from the scanner section.

An image scanning device includes a placement-area image data capturing unit that captures placement-area image data corresponding to an area where documents are placed on a platen, a document image data capturing unit that captures pieces of document image data, each of which corresponds to one of the documents, and acquires positions of the pieces of document image data, in accordance with the placement-area image data captured by the placement-area image data capturing unit, a placement order acquiring unit that acquires an order in which the documents, each of which corresponds to one of the pieces of document image data, have been placed in accordance with at least the positions of the pieces of document image data, each of which corresponds to one of the documents, and a sequencing unit that assigns to the pieces of document image data the order acquired by the placement order acquiring unit.

A system and method of detecting the presence of metallic objects in media to be conveyed in a medium transport system is disclosed. One or more metal detectors are included in the medium transport system to detect the presence of metal in the medium being transported. Signals from the metal detectors are sent to a system processor, which analyzes the signals, and produces proximity, duration, and/or intensity values therefrom. One or more microphones may also be included which detect the sound created as the medium is being transported. The processor computes sound values from the microphone signals, and analyzes the computed sound values along with the proximity, duration, and/or intensity values in order determine if the conveyance of the medium along the transport path should be stopped due to the presence of metal in the media or a jam occurring within the medium transport path.

An image processing system includes one or more processors configured to, when a document as a scanning target travels and concurrently an image of the document being scanned in is formed on a medium, issue an instruction to start formation of the image on the medium after a transport distance traveled by the document or an elapsed time exceeds a threshold after scanning of the document starts, the threshold being set as a distance or a period for stabilizing transport of the document.

An image forming apparatus includes a reading device, an identifier, a determiner, and a decider. The reading device reads, from a sheet, information related to the sheet. The identifier identifies a type of the sheet, on a basis of the information related to the sheet. The determiner determines a threshold for quality of an image, on a basis of the information related to the sheet, and the identified type of the sheet. The decider decides the quality of the image formed on the sheet, on a basis of the threshold.

A system for validating a hologram on a document is provided. The system includes a camera for taking plurality of images of the hologram, a memory for storing the plurality of images, a display for displaying at least one of the images and for instructing a user to rotate the document such that at least two of the images are taken from different hologram viewing angles, and a processor for analysing the characteristics of the hologram in each of the plurality of images and for determining whether any of the characteristics match a predetermined characteristic set for a predetermined hologram type.

An image scanning apparatus performs operations including: upon detection of a first angle, causing light to be emitted to an original and recording a distribution of reflected light of the emitted light as first read data; upon elapse of a predetermined time from detection of a second angle, causing light to be emitted to the original and recording a distribution of reflected light of the emitted light as second read data; detecting a closed state of a pressure plate based on the second read data; and upon determination of an angle of the pressure plate with respect to the platen being equal to or smaller than a third angle smaller than the second angle in the detection of the closed state, detecting a width of the original in an opening-closing direction of the pressure plate based on a difference between the first and second read data.

An image forming apparatus capable of preventing misdetermination of a type of printing paper includes a transmitted light receiver, a specularly reflected light receiver, and a diffusively reflected light receiver, which constitute a sensor, and an output determiner that determines whether data output by the plurality of light receivers is normal. The image forming apparatus determines the type of printing paper and an abnormality of the printing paper from the determination by the output determiner.