An image forming apparatus includes a document reading unit reading an image of a document and generating scan data of the document and a printing unit printing on a sheet the scan data generated by the document reading unit, and is configured to be able to feed the sheet subjected to printing by the printing unit to a post-processing device. The image forming apparatus includes a judging unit that judges whether an image of a post-processing mark which is composed of a staple mark or a punching hole is present in the scan data generated by the document reading unit, and a printing control unit that, when the judging unit judges that the image of the post-processing mark is present in the scan data, generates corrected data by deleting the image of the post-processing mark from the scan data and causes the printing unit to print the corrected data.

An information processing apparatus includes a receiving unit that receives printing data and a switching unit that performs switching between a second rotation mode and a first rotation mode. The first rotation mode is a mode in which an orientation in the printing data undergoes rotation through an angle decided in accordance with an analysis of content of the printing data. The second rotation mode is a mode in which if an angle for an output size in the printing data is stored in a memory, the angle is read out from the memory, and the orientation in the printing data undergoes the rotation.

There is provided with a method of controlling an image processing apparatus. The method includes accepting a predetermined instruction for adding a predetermined mark to a first image which is being displayed. The method includes, based on at least one of a non-printing area corresponding to an area on a recording medium where printing is not to be performed and a second image being positioned at the predetermined location when the predetermined instruction is accepted, causing at least one of the first image and the second image to move. The at least one, that was positioned at the predetermined location when the predetermined instruction was accepted, of the non-printing area and the second image is not positioned at the predetermined location after at least one of the first image and the second image has been moved.

An image reader wherein a controller executes: a start process of starting a reading operation; a head edge detection process of detecting a document width; a first side edge detection process of detecting a side edge until an occurrence of a first change from a side edge detecting state to a side edge non-detecting state; a calculation process of calculating a continuation distance based on the document width; a second side edge detection process of detecting the side edge until an occurrence of a second change from the non-detecting state to the detecting state; a third side edge detection process of detecting the side edge until an occurrence of the first change; and an end process of ending the reading operation when the second change does not occur in a continuation range in the second detection process or when the first change occurs in the third detection process.

An election voting system is provided. The election voting system includes a printer for accepting printer medium. In one embodiment, the printer medium may be a paper printer medium. The printer medium includes mark(s) positioned on the printer medium that may be utilized to determine whether the printer medium is inserted into the printer in the proper orientation. The election voting system may include a sensor that identifies the presence of the mark. Two marks are positioned so that the orientation of the paper (right side up versus upside down) can be determined. In addition, in one embodiment, the marks are positioned so that even if the printer medium is rotated 180 degrees, orientation as to which side is up may be detected.

A reading device includes a position reference member and a reader. The position reference member has a reference pattern that includes a line extending in a prescribed direction. The position reference member is configured to relatively move in a direction orthogonal to the prescribed direction. The reader includes a plurality of sensor chips, each of the sensor chips including a plurality of pixels. The reference pattern corresponds to each of the sensor chips of the reader.

An image forming apparatus includes an image reading part, an image forming part, and a sheet feeding cartridge. The image reading part reads a document and obtains image data of the document. The image forming part forms an image on a sheet on the basis of the image data. The sheet feeding cartridge stores several kinds of the sheets. In a case where predetermined sheet feeding information is applied on the document, the sheet feeding information is read on the basis of the image data. Conveying of the sheet is controlled so as to convey the sheet corresponding to the sheet feeding information from the sheet feeding cartridge to the image forming part and, on the other hand, to eject the sheet not corresponding to the sheet feeding information from the sheet feeding cartridge without passing through the image forming part.

An image forming apparatus includes a scanner, a printer configured to print an image based on an image read by the scanner, a memory, and a processor. The processor is configured to control the printer to print an adjustment test pattern on a first sheet, and the scanner to scan the adjustment test pattern on the first sheet, determine a setting value for adjusting positioning of an image to be printed by the printer on a sheet of the first sheet size, such that an image center matches a sheet center in a main scanning direction and a sub-scanning direction, and store the determined setting value in the memory. The processor is configured to modify the setting value stored in the memory based on sheet information related to a second sheet to be used for printing, the second sheet having a second sheet size different from the first sheet size.

An image reading apparatus includes a transportation unit configured to transport a document; a reading unit configured to read the document transported by the transportation unit; a medium placement unit which is positioned upstream of the reading unit in the transportation, and on which the document and a setting sheet that includes setting information for setting a condition of reading processing of the document are placed; a detection unit which is disposed in the medium placement unit, and is configured to detect the setting information from the setting sheet placed on the medium placement unit; and a control unit configured to control the reading processing, in which the control unit sets the condition of the reading processing based on the setting information detected by the detection unit, and executes, under the condition that is set, the reading processing including reading of the document by the reading unit.

A background image is acquired by imaging an opening plate as a background of an original document in a state where the original document is not arranged. Next, an original document including background image is acquired by imaging the same range as the background image in a state where the original document is arranged on an upper surface of the opening plate. Next, a difference image is generated by subtracting the background image from the original document including background image. In addition, an inverse difference image is generated by subtracting the original document including background image from the background image. A region of the original document is detected based on the difference image and the inverse difference image.