Abstract: An image forming apparatus provided with an image forming section forming a reference mark at the position being away from the leading edge of the front surface of a sheet by a prescribed length, and forming an image for the front surface based on the forming position of the reference mark, a transfer sheet reversing section reversing the sheet, a leading edge detection sensor detecting the leading edge of the rear surface of the sheet and a mark detection sensor detecting the forming position of the reference mark on the sheet based on the leading edge of the rear surface of the transfer sheet, and the image forming section forms an image on the rear surface of the transfer sheet based on the forming position of the reference mark on the sheet whose reference point is the leading edge of the rear surface of the transfer sheet.

Abstract: An image forming apparatus for forming an image on a transfer sheet based on image data, comprises an operating section to determine a setup about a margin region on which an image is not formed at an edge portion of the transfer sheet, a control section to determine an inner region having a specified width and being adjacent to the determined margin region as a density change region in which an image density is changed, and determines a more inner region located inward more from the density change region as a regular density region in which an image is formed with a regular image density, and an image forming section to form an image in the density change region based on image data on the condition where the image density is reduced and to form an image in the regular density region based on image data without changing the image density.

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: The invention provides an image forming apparatus wherein, when forming an image on transfer sheet, the transfer sheet is shifted across the width immediately before transfer of the image onto transfer sheet based on the position of a toner image formed on an intermediate transfer member as an image carrier, and the misalignment across the width is adjusted, thereby ensuring high-speed and high-precision adjustment of the position of the image formed on a single side or both sides.

Abstract: There is described an image forming apparatus, in which a plurality of AC power cords are combined with each other, so as to stably supply the electric power to the loading sections from the combined points, regardless of the fluctuation of the electric power consumption in the loading sections coupled to the combined points. The image forming apparatus includes: a plurality of AC power cords that are respectively coupled to a plurality of AC power supplying sources, which are substantially equivalent to relative to each other in phase and amplitude of AC voltages of the plurality of AC power supplying sources; and a combining section to combine AC electric power units supplied through the plurality of AC power cords into a combined electric power, so as to supply the combined electric power to a load.

Abstract: An image forming apparatus having a main body unit for forming an image on a recording medium, connectable to at least one post-processing unit for performing post-processing for the recording medium on which the image is formed, the image forming apparatus includes, a current value acquiring portion for acquiring at least one of a calculated value of a current and a measured value of the current as a value of the current flowing through the main body unit, and a control portion for selecting an operation mode from a plurality of operation modes each having a distinct value of current flowing through the main body unit.

Abstract: An image forming apparatus comprising: an image forming section to form a toner image based on print data; a transfer section to transfer the toner image onto a transfer sheet; a fixing section to fix the toner image transferred onto the transfer sheet; a cleaning section for cleaning at least one of the image forming section, the transfer section and the fixing section; and a control section to determine an existence area of a real image in a print image based on the print data, to determine a size of the transfer sheet, onto which the print image is printed and to control the cleaning device based on determinations of the image determination section and the transfer sheet size determination section.

Abstract: An image forming apparatus for communicating with a management apparatus for storing a plurality of electronic prepaid information and authentication information related to the plurality of electronic prepaid information, and replaying to inquiry request for electronic prepaid information based on authentication information through a portable communication terminal storing authentication information.

Abstract: An image forming apparatus that forms an image on a surface of a transfer sheet, then, reverses the transfer sheet on which the image has been formed on the surface and then, forms an image on the reverse side of the transfer sheet, wherein there is provided a correcting section that changes a relative position between the transfer sheet and the image on the surface in accordance with an outer shape of the transfer sheet and further changes a relative position between the transfer sheet and the image on the reverse side of the transfer sheet in accordance with an outer shape of the transfer sheet.

Abstract: An image forming apparatus providing services for general users, capable of getting rid of trouble to collect use charges.

Abstract: An image forming apparatus for forming an image on a transfer sheet based on image data, comprises an operating section to determine a setup about a margin region on which an image is not formed at an edge portion of the transfer sheet, a control section to determine an inner region having a specified width and being adjacent to the determined margin region as a density change region in which an image density is changed, and determines a more inner region located inward more from the density change region as a regular density region in which an image is formed with a regular image density, and an image forming section to form an image in the density change region based on image data on the condition where the image density is reduced and to form an image in the regular density region based on image data without changing the image density.

Abstract: An image forming apparatus provided with an image forming section forming a reference mark at the position being away from the leading edge of the front surface of a sheet by a prescribed length, and forming an image for the front surface based on the forming position of the reference mark, a transfer sheet reversing section reversing the sheet, a leading edge detection sensor detecting the leading edge of the rear surface of the sheet and a mark detection sensor detecting the forming position of the reference mark on the sheet based on the leading edge of the rear surface of the transfer sheet, and the image forming section forms an image on the rear surface of the transfer sheet based on the forming position of the reference mark on the sheet whose reference point is the leading edge of the rear surface of the transfer sheet.

Abstract: An image forming apparatus comprising: an image forming section to form a toner image based on print data; a transfer section to transfer the toner image onto a transfer sheet; a fixing section to fix the toner image transferred onto the transfer sheet; a cleaning section for cleaning at least one of the image forming section, the transfer section and the fixing section; and a control section to determine an existence area of a real image in a print image based on the print data, to determine a size of the transfer sheet, onto which the print image is printed and to control the cleaning device based on determinations of the image determination section and the transfer sheet size determination section.

Abstract: An image forming apparatus providing services for general users, capable of getting rid of trouble to collect use charges.

Abstract: An image forming apparatus having a main body unit for forming an image on a recording medium, connectable to at least one post-processing unit for performing post-processing for the recording medium on which the image is formed, the image forming apparatus includes, a current value acquiring portion for acquiring at least one of a calculated value of a current and a measured value of the current as a value of the current flowing through the main body unit, and a control portion for selecting an operation mode from a plurality of operation modes each having a distinct value of current flowing through the main body unit.

Abstract: The invention provides an image forming apparatus wherein, when forming an image on transfer sheet, the transfer sheet is shifted across the width immediately before transfer of the image onto transfer sheet based on the position of a toner image formed on an intermediate transfer member as an image carrier, and the misalignment across the width is adjusted, thereby ensuring high-speed and high-precision adjustment of the position of the image formed on a single side or both sides.

Abstract: An image forming apparatus that forms an image on a surface of a transfer sheet, then, reverses the transfer sheet on which the image has been formed on the surface and then, forms an image on the reverse side of the transfer sheet, wherein there is provided a correcting section that changes a relative position between the transfer sheet and the image on the surface in accordance with an outer shape of the transfer sheet and further changes a relative position between the transfer sheet and the image on the reverse side of the transfer sheet in accordance with an outer shape of the transfer sheet.

Abstract: There is described an image forming apparatus, in which a plurality of AC power cords are combined with each other, so as to stably supply the electric power to the loading sections from the combined points, regardless of the fluctuation of the electric power consumption in the loading sections coupled to the combined points. The image forming apparatus includes: a plurality of AC power cords that are respectively coupled to a plurality of AC power supplying sources, which are substantially equivalent to relative to each other in phase and amplitude of AC voltages of the plurality of AC power supplying sources; and a combining section to combine AC electric power units supplied through the plurality of AC power cords into a combined electric power, so as to supply the combined electric power to a load.

Abstract: There is described an apparatus, which supply AC electric powers fed from a plurality of commercial electric power sources to an electric power loading section, so as to supply an amount of electric power exceeding a maximum rated electric power fed from one of the commercial electric power sources. The apparatus, includes: AC power inputting ports that are respectively coupled to AC power sources, so as to simultaneously introduce various kinds of AC electric power units from the AC power sources; an electric power combining section to combine the AC electric power units, supplied from the AC power sources, with each other, so as to generate a combined electric power, serving as a single electric power source; and a combined electric power outputting port that is coupled to an electric power load section in order to supply the combined electric power to the electric power load section.

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.