Provided is an image reading apparatus including: a line sensor including three light receiving element arrays arranged at a predetermined interval in a sub-scanning direction, and being configured to read an image of an original by the respective light receiving element arrays to generate read data representing the read image, the three light receiving element arrays each including light receiving elements for receiving red light, blue light and green light. These elements are arranged in a main scanning direction; and a reading control board. The reading control board is configured to acquire the read data obtained by the respective light receiving element arrays from the line sensor, to sort a plurality of pieces of read data for every pixel of the same color, and to detect an abnormal pixel that does not exist in the image of the original for each color.

An image forming apparatus includes a conversion unit configured to convert image data based on a conversion condition, an image forming unit configured to form an image on a sheet based on the converted image data, a detection unit configured to detect a pattern image on a transfer member, a reading unit configured to read a test image formed on a sheet, a controller configured to perform calibration based on a reading result of the reading unit, and a reception unit. In a case where the calibration is performed, the controller determines an image forming condition based on a result of detection by the detection unit before the test image is formed. In a case where the reception unit receives the discontinuation instruction, the controller changes the image forming condition to an image forming condition before the pattern image is formed.

An information system includes a multifunction apparatus and a first server which are linked to each other over a network. The multifunction apparatus includes a reading section, an information obtaining section, a first transmitter, and a memory. The reading section reads the image of an original document. The information obtaining section obtains a destination information from the first server, the destination information indicating a destination to which the image is transmitted. The first transmitter transmits the image to the destination. The first server includes a memory and a second transmitter. The memory stores the destination information therein. The second transmitter transmits the destination information in the memory to the multifunction apparatus.

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.

An image reading apparatus includes a stacking unit, a conveyance unit to convey stacked sheets, a reading unit, a white reference plate provided in a second position, and a processor. The reading unit is movable and, at a first position, reads a conveyed sheet image to obtain image data and, at the second position, reads the white reference plate. The processor generates, based on a plate reading result, a shading correction value and corrects the image data using the shading correction value. Based on whether the number of times in which reading the white reference plate has been performed is less than a predetermined number of times, the reading unit changes a time interval in a reading period that is from a first timing to a second timing. The processor generates, each time the white reference plate is read, the shading correction value based on the plate reading results.

An image reading apparatus includes first and second image reading units, and first and second transparent guides disposed along a conveyance path and guiding a document passing through a conveyance path. The first and second transparent guides are disposed to oppose to each other across the conveyance path. The image reading apparatus also includes a grounding portion provided on one of the first and second transparent guides and a conductive portion electrically connecting the first and second transparent guides with each other.

An image reading apparatus includes a first body, a sheet conveyance portion, an opening/closing member, a first image reading portion, and an adjustor portion. The sheet conveyance portion is configured to convey a sheet toward a sheet conveyance path. The opening/closing member is provided openably with respect to the first body and is configured to open a part of the sheet conveyance path in response to its opening. The first image reading portion is configured to read an image of the sheet conveyed by the sheet conveyance portion. The adjustor portion is configured to adjust a position of the first image reading portion. The adjustor portion includes a manipulator portion manipulated in making an adjustment of the position of the first image reading portion and disposed to be exposed if the opening/closing member is opened.

A communication apparatus includes a checking unit, a data transmitting unit, and a process history transmitting unit. The checking unit communicates with each of multiple destinations for data and checks whether or not the data is capable of being written at the destination. The data transmitting unit transmits the data to the destination on which the checking unit has performed the checking operation. The process history transmitting unit transmits a process history about the data, to the destination to which the data transmitting unit transmits the data.

An image reading apparatus includes an image reading unit, a mounting portion, and a cover member. The cover member includes a first restricting portion, a lock portion, and an operation portion. The operation portion operated from outside the main unit is displaceable in a direction in which the lock portion deforms from the locking shape into the releasing shape. The mounting portion includes a second restricting portion and a part. The second restricting portion restricts displacement of the operation portion in the cover member mounted on the mounting portion in the second orientation. The part has a second aperture opening into the lock portion in the cover member mounted on the mounting portion in the second orientation from outside the main unit. The second aperture is an opening for the insertion of a tool for deforming the lock portion from the locking shape into the releasing shape.

An image processing apparatus includes a processing target selection unit. The processing target selection unit inquires which image data obtained by a conveyed-document reading unit or by a fixed-document reading unit, to be set as a processing target when a user determination unit has determined that users are identical, determines image data obtained by a conveyed-document reading unit as a processing target when the user determination unit has determined that the users are not identical and a determination unit has determined that the document on the platen is a left document, and inquires which image data image data obtained by the conveyed-document reading unit or by the fixed-document reading unit, to be set as the processing target when the user determination unit has determined that the users are not identical, and the determination unit has determined that the document on the platen is not a left document.