Abstract: An image forming apparatus has a job information acquiring unit for acquiring job information which includes job-related sheet size information, a confirmation-output size determining unit for determining the size of a sheet for confirmation output according to the job information, a job information position designating unit for specifying a portion of the job image information to be printed out on a confirmation-output sheet of a size which is determined by the confirmation-output size determining unit, an editing unit for editing the portion of job image information specified by the job information position designating unit as confirmation-output image information on the confirmation-output sheet of a size determined by the confirmation-output size determining unit, and an image forming unit for carrying out image forming of confirmation-output image information edited by the editing unit on the confirmation-output sheet.

Abstract: An image forming apparatus for use with a transfer sheet includes: a sheet feeding unit structured to feed the transfer sheet; a color detection sensor structured to detect color information on the transfer sheet fed from the sheet feeding unit; a recognition section structured to recognize whether the transfer sheet subjected to the detection by the color detection sensor is a non-tabbed transfer sheet having no tab, or either a tabbed transfer sheet having a tab or an unprocessed tabbed transfer sheet blank, the unprocessed tabbed transfer sheet blank being capable of being processed into a tabbed transfer sheet having a tab by post-processing, wherein a recognition result is made based on the color information detected by the color detection sensor; and a control section that controls image forming on and conveying of the fed transfer sheet, according to the recognition result by the recognition section.

Abstract: Difference between a received signal which is an OFDM modulated signal having a guard interval and a delayed signal acquired by delaying the received signal by time equivalent to a data interval is calculated, a reference signal of an FFT calculation window is generated based upon the acquired result of the calculation of the difference and a predetermined threshold and a boundary between symbols is detected. As a result, the boundary between symbols can be stably detected, compared with a method of detecting a boundary between symbols based upon the result of the correlation calculation of the guard interval and the demodulation of received data is also stably enabled in multipath phasing and ghost.

Abstract: An image forming apparatus includes an image forming section that forms a composite image on a sheet, based on image data and a cut guide; an operation section to input an image forming condition; and a control unit that controls operation of each section of the apparatus. Herein, the operation section includes a cutting times number setting unit to set a number of times of cutting a sheet and cut end designating units to designate sheet ends to be cut. The control unit performs control to change each display by replacing a respective cut end designating unit, according to the number of times of cutting having been set by the cutting times number setting unit, and controls the image forming section to form the composite image on the sheet, corresponding to the ends having been designated to be cut via the cut end designating unit.

Abstract: An image forming apparatus and an image forming method capable of reducing a waste of papers, and confirming contents of a plurality of copies of images, when outputting the copies of images. The image forming apparatus has: a one-sheet output mode instructing section for instructing a one-sheet output mode for outputting one copy of images as a confirmation for every sheet, when outputting a plurality of copies of images formed on the basis of inputted image data; and a one-sheet output control section for outputting the one copy of images as the confirmation for every sheet, when the one-sheet output mode is instructed by the one-sheet output mode instructing section.

Abstract: An image forming apparatus, which includes: an image forming section to form an image on a transfer sheet conveyed to the image forming section; an edge detecting sensor which detects an edge position of the transfer sheet in a main scanning direction while the transfer sheet is conveyed to the image forming section; and a controller which controls an image writing position at the image forming section based on a result of an edge position detection by the edge detecting sensor; wherein the edge detecting sensor comprises a plurality of light sources each having a different wavelength, and the controller comprises a light source controller which controls lighting of the plural light sources.

Abstract: There is described an image forming apparatus, which forms high quality images free from a phenomenon of inter-sheet adhesion. The image forming apparatus includes a conveyance section to convey the transfer material along a conveying path; a cooling device disposed along the conveying path to cool the transfer material just after the toner image is fixed with heat; a controller-to control the conveyance section and the cooling device; and a first transfer-material detecting device disposed at a position adjacent to and upstream from the cooling device, in order to detect the transfer material coming into the conveying path. When the first transfer-material detecting device detects the transfer material coming, the controller controls the conveyance section to decelerate a conveyance velocity of the transfer material to a decelerated velocity lower than a normal conveyance velocity, so that the transfer material passes through the conveying path at the decelerated velocity.

Abstract: An image forming apparatus includes: a recording section which records therein image data, and processing position information of a sheet; an image forming section which forms an image on the sheet on the basis of the image data recorded in the recording section; a position detector which detects a pre-processed position on a sheet to be fed; and a controller which compares the processing position information with a value detected by the position detector, judges whether or not an abnormality is present, and corrects an image forming position of the image forming section for each block of a plurality of blocks surrounded by either processed portions of a sheet or a processed portion and an edge of the sheet.

Abstract: An image forming apparatus having an operation improved in view of use of normal healthy persons and handicapped persons. The image forming apparatus comprising an operation panel having a display and an input section, has: a specifying section for specifying whether a user is a normal healthy person or a handicapped person; a storage for storing an operation function when the normal healthy person uses the apparatus, and an operation function when the handicapped person uses the apparatus; and an operation function changing section for reading a corresponding operation function out of the storage, and changing an operation function of the operation panel according as the normal healthy person or the handicapped person is specified by the specifying section.

Abstract: When images are to be printed on two, front and lower surfaces of a sheet, in order to register the position of the image on the front surface and the position of the image on the back surface highly accurately, an image printing apparatus of this invention includes an image printing section which forms the image for the front surface of the sheet s well as an image of a reference mark on a photosensitive member at one portion in a region outside an image printing region and transfers the images onto the front surface of the sheet, a fixing unit which fixes the transferred images on the sheet, a line sensor which detects the reference mark after fixing printed on the front surface of the sheet, an arithmetic operating section which obtains a shrinkage factor of the sheet on the basis of a size of the reference mark before fixing and a size of the detected reference mark after fixing and calculates a position and magnification of the image to be printed on the back surface on the basis of the shrinkage factor,

Abstract: An image forming apparatus having therein an image forming device that transfers an image onto a transfer sheet and a reversing device that reverses the transfer sheet, wherein the image forming device transfers an image on the front surface of the transfer sheet, then, the reversing device reverses the sheet, and the image forming device transfers an image onto the rear surface of the sheet and the image forming apparatus further has therein a correcting device that corrects the overall skew of the transfer sheet depending on an inclination of a leading side of a transfer sheet in the conveyance direction set in advance before an image is formed on the front surface, and corrects the overall skew of the transfer sheet depending on an inclination of a leading side of a transfer sheet in the conveyance direction set in advance before an image is formed on the rear surface.

Abstract: An image forming apparatus has a job information acquiring unit for acquiring job information which includes job-related sheet size information, a confirmation-output size determining unit for determining the size of a sheet for confirmation output according to the job information, a job information position designating unit for specifying a portion of the job image information to be printed out on a confirmation-output sheet of a size which is determined by the confirmation-output size determining unit, an editing unit for editing the portion of job image information specified by the job information position designating unit as confirmation-output image information on the confirmation-output sheet of a size determined by the confirmation-output size determining unit, and an image forming unit for carrying out image forming of confirmation-output image information edited by the editing unit on the confirmation-output sheet.

Abstract: An image forming apparatus has a transfer attitude correcting section for correcting a transfer attitude of the transfer sheet to receive the toner image and for conveying the corrected transfer sheet to the transfer section with a timing to match with the movement of the toner image. The transfer attitude correcting section includes a roller unit including a base board rotatable around a center of rotation and a registration roller mounted on the base board, a detecting section for detecting a position of the transfer sheet being conveyed by the registration roller; and a control section for control the roller unit based on detection data detected by the detecting section so as to correct a skew of the transfer sheet by rotating the base board and to correct a deviation of a transfer position of the transfer sheet by shifting the registration roller on the base board.

Abstract: An image forming apparatus includes an image forming section that forms a composite image on a sheet, based on image data and a cut guide; an operation section to input an image forming condition; and a control unit that controls operation of each section of the apparatus. Herein, the operation section includes a cutting times number setting unit to set a number of times of cutting a sheet and cut end designating units to designate sheet ends to be cut. The control unit performs control to change each display by replacing a respective cut end designating unit, according to the number of times of cutting having been set by the cutting times number setting unit, and controls the image forming section to form the composite image on the sheet, corresponding to the ends having been designated to be cut via the cut end designating unit.

Abstract: An image forming apparatus includes an image forming section that forms an image on a sheet, based on image data of a job, a sheet ejection tray on which to stack sheets have been formed with an image, and a controller to control image forming, wherein the controller performs control to form an image based on a composite image of image data and a cut guide attached to the image data only on a first image forming page or a last image forming page.

Abstract: There is described an image forming system, which confirms a finished state of an image at any time during the implementation of the image forming job as needed. The system includes: an image forming section to respectively form images on recording materials; a stacking section to stack the recording materials continuously ejected from the image forming section; an instruction inputting section from which an operator inputs instruction information; an ejecting section to stack a part of the recording materials in such a manner that the operator can pick up stacked recording materials by hand; a controlling section to conduct controlling operations in response to the instruction information, inputted from the instruction inputting section during an implementation of an image forming job including an operation for stacking the recording materials ejected from the image forming section, in order to eject the part of the recording materials onto the ejecting section.

Abstract: There is described an image forming apparatus, which forms high quality images free from a phenomenon of inter-sheet adhesion. The image forming apparatus includes a conveyance section to convey the transfer material along a conveying path; a cooling device disposed along the conveying path to cool the transfer material just after the toner image is fixed with heat; a controller-to control the conveyance section and the cooling device; and a first transfer-material detecting device disposed at a position adjacent to and upstream from the cooling device, in order to detect the transfer material coming into the conveying path. When the first transfer-material detecting device detects the transfer material coming, the controller controls the conveyance section to decelerate a conveyance velocity of the transfer material to a decelerated velocity lower than a normal conveyance velocity, so that the transfer material passes through the conveying path at the decelerated velocity.

Abstract: An image forming apparatus includes: an image forming section that forms an image on a sheet on the basis of image data; a sheet discharge tray on which the sheet with the image that has been formed, is stacked; and a controller that controls image formation. The image forming apparatus has a one sided mode in which the image formation is carried out only on a one side of a sheet and a two sided mode in which the image formation is carried out on both sides of a sheet, and when the two sided mode is carried out, the controller controls to form an image as a composite image in which a cutting mark is attached to the image data for a first surface only or a second surface only of the sheet.

Abstract: A toner conveyance device for conveying toner particles including: a toner mixing unit having a toner introducing portion to introduce toner particles, for mixing the toner particles from the toner introducing portion with air to make a toner fluid; a first conveyor for receiving the toner fluid in the toner mixing unit and conveying; a toner separation unit for separating the toner fluid conveyed by the first conveyor into air and toner particles, the toner separation unit having a toner discharging portion for discharging the separated toner particles to an outside; a second conveyor for conveying the air separated by the toner separation unit back to the toner mixing unit; and a tightly closed circulation path of air, formed starting at the toner mixing unit which leads to the toner separation unit through the first conveyor and returning back to the toner mixing unit through the second conveyor.

Abstract: Disclosed is an image forming apparatus comprises an attaching section 63 used to attach register mark information 61 which can be read by a cutting machine on image information 60, where the register mark has a specified shape, size and position. When a printing range of the image information 60 with the register mark exceeds a printing output range representing a size of page memory 64 or a recording medium size, a warning is given to discontinue printing. Thus, erroneous reading of the register mark by the cutting machine is prevented, defective output of a recording medium from the cutting machine is reduced and printing efficiency is improved.