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 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 image reading apparatus includes: a housing including a processing unit configured to process image information; an opening and closing member openably and closably provided on the housing, the opening and closing member including a reading unit configured to read an image from an image holding medium and configured to obtain image information from the image; a connection member that electrically connects the reading unit and the processing unit; and a protective member including a first protective member rotatably supported by the opening and closing member and a second protective member rotatably supported by the housing and rotatably connected to the first protective member, wherein rotation axial directions of the first protective member and the second protective member are the same direction as a rotation axial direction of the opening and closing member, and the connection member is accommodated in the protective member and protected by the protective member.

Provided is an image reading optical system including an image reading unit in which plural reading devices are arranged in a first direction, and plural image-forming mirrors that guide reflected light, which is acquired by reflecting light from a light source in a reading target, to the image reading unit, wherein any one of the plural image-forming mirrors is an adjustment mirror that has power only in one of the first direction and a second direction intersecting the first direction, and is rotatable or relatively movable with respect to the other image-forming mirrors.

A first sheet conveying path extends from a sheet supply portion toward a sheet discharge portion. A second sheet conveying path extends, from a diverging position in the first sheet conveying path, toward a switch-to-back portion. A third sheet conveying path is a conveying path for the sheet that is reversed by the switch-to-back portion. A first movable guiding portion is rotatable between a first posture in which the sheet that has reached the diverging position is guided toward the sheet discharge portion, and a second posture in which the sheet is guided into the second conveying path. A second movable guiding portion is rotatable between a third posture and a fourth posture, in the second sheet conveying path. In the third posture, the second sheet conveying path is formed in conjunction with the first movable guiding portion. In the fourth posture, the third sheet conveying path is formed.

An image processing device including a reception unit, an acquisition unit, an image reading unit, a transmission unit, and an instruction unit. The reception unit receives a processing identifier associated with image reading processing. The acquisition unit acquires processing information associated with the processing identifier, the processing information including at least information regarding a storing location and client's identification information. The image reading unit reads an image on the basis of the processing information. The transmission unit transmits data of the read image to the storing location according to the processing information. The instruction unit issues a print instruction to print the image on the basis of the client's identification information included in the processing information.

Provided is an image reader including a transparent plate that supports an original document on which an image is recorded, a reading member that is disposed inside a housing and reads an image of the original document supported by the transparent plate while moving, a guide member that extends in a movement direction of the reading member and guides the moving reading member, and an endless belt that is wound around a driving pulley that performs rotational driving and a driven pulley that is driven to rotate, the endless belt being rotated around the driving pulley and the driven pulley to move the reading member guided by the guide member, wherein at least one of the driving pulley and the driven pulley is attached to the guide member.

An image forming apparatus includes a fixing unit, an image reading unit, and a control unit. The fixing unit includes a first roller, a second roller, and a displacement mechanism that displaces at least one of the first roller and the second roller to form a nip portion. The image reading unit includes a scanning mechanism that scans by moving a carriage where a light source is mounted. The control unit executes a driving of the scanning mechanism and a driving of the displacement mechanism at different times.

An image-forming apparatus includes, in a body having a predetermined house, an image-reading unit and an image-forming unit that is configured to form an image read by the image-reading unit. A discharge portion is configured to discharge a sheet on which the image was formed onto a discharge tray. An intra-apparatus-discharge space is formed in the body between the image-reading unit and the image-forming unit. The housing includes therein a consumption article mounting portion in which a consumption article used by the image-forming unit is mounted. At least a portion of a surface of the housing at a region of the consumption article mounting portion has a light-transmissive property. When the consumption article is consumed and needs to be replenished, the operator can visually check the region of the consumption article mounting portion in the housing from the outside of the body through the transparent portion.

An image reading apparatus including: a conveyance path; a light transmitting member; a first reading unit; a second reading unit; a first roller disposed opposite to the first reading unit; a second roller disposed opposite to the second reading unit; a holding member configured to hold the first roller and the second roller; a plurality of first abutment portions provided on both end portion sides in a width direction of the first roller and forming a gap between the light transmitting member and the first roller by abutting on the light transmitting member; a plurality of second abutment portions provided on both end portion sides in the width direction of the second roller and forming a gap between the light transmitting member and the second roller by abutting on the light transmitting member; and an urging member urges the holding member against the light transmitting member.