Abstract: In accordance with an embodiment, an image forming apparatus comprises a conveyance section configured to convey a print medium; a processing unit configured to form a toner image; an image holding member configured to move the toner image formed by the processing unit; a photoelectric sensor facing the image holding member and of which a detection direction intersects with a conveyance plane on which the print medium is conveyed; and a processor configured to determine passage of the print medium based on the detection result of the photoelectric sensor, and to determine whether or not a density of the toner image formed by the processing unit is a preset density.

Abstract: A method for printing including receiving, by a printer, a first page image, a second page image, and a selection for enabling media type substitution. The printer identifies a preferred media type and an alternate media type, where the preferred media type and the alternate media type include a common printable area (CPA), and the first page image and the second page image are modified to match a dimension of the CPA. The printer then selects the preferred media type for printing the first page image. The printer receives a message, after receiving the selection enabling media type substitution, associated with the preferred media type after selecting the first media type. The printer then selects the alternate media type in response to the message and the selection enabling media type substitution, and prints the second page image using the alternate media type.

Abstract: An image forming apparatus including: a plurality of photosensitive drums; a plurality of scorotron chargers provided for the plurality of photosensitive drums, respectively, a voltage application circuit commonly connected to the plurality of scorotron chargers, a plurality of wires provided for the plurality of scorotron chargers, respectively; a plurality of grid electrodes provided for the plurality of scorotron chargers, respectively; at least one of current detecting units provided for at least one of the plurality of grid electrodes, respectively, and at least one of the current detecting units detecting grid current which flows into at least one of the grid electrodes, respectively; and a control device configured to control the voltage application circuit such that at least one of the grid currents detected by at least one of the current detecting units become equal to or higher than a reference value.

Abstract: An image forming apparatus includes an image carrier for carrying a toner image and a transfer device. In the transfer device, a voltage applier applies a predetermined voltage to a transfer electric field generator. A potential measurement device measures a surface potential of the transfer electric field generator when a predetermined time period elapses after the voltage applier applies the predetermined voltage to the transfer electric field generator. A controller determines a transfer bias to be applied by at least one transfer member to the transfer electric field generator based on the measured surface potential of the transfer electric field generator. The at least one transfer member applies the transfer bias to the transfer electric field generator to generate a transfer electric field. The toner image is transferred from the image carrier onto a toner image receiver by the transfer electric field generated by the transfer electric field generator.

Abstract: An image forming apparatus includes a light source unit, an image carrier on which a latent image is formed by a light beam emitted from a light source, a developing unit configured to develop a latent image formed on the image carrier using a toner, an intermediate transfer unit on which a toner image developed by the developing unit is transferred, a heating unit configured to heat the intermediate transfer unit on which a toner image is transferred, a fixing unit configured to fix the toner image heated by the heating unit on a recording medium, a temperature detection unit configured to detect temperature of the intermediate transfer unit, and a control unit configured to control a magnification of a latent image to be formed on the image carrier according to a detection result of the temperature detection unit.

Abstract: An Flat Bed-Multi Function Device includes an MPU, a reading section, a recording section, an operation section, an image memory, and a ratio changing section. In a reduction copy mode, the reading section reads an extended reading area of a document larger than a recording area of recording paper to generate image data. The ratio changing section reduces the image data at a predetermined reduction ratio. The recording section forms an image on a sheet of recording paper on the basis of the reduced image data.

Abstract: An image formation device having a paper feed member which separates on a one-by-one basis sheets taken out of a paper feed tray by a take-out roller and feeds the separated sheets downstream in a sheet carrying direction; an upstream side sheet carrying path which the sheets are carried to an image recording position and which has a sheet size detecting path; an image recording member which records an image; a downstream side sheet carrying path which carries recorded sheets to an eject tray; and a sheet inverting path for inverting one side recorded sheets, and further having a sheet returning path for returning one side recorded sheets to the upstream side sheet carrying path; a sheet size detecting part which detects sheet sizes; an image magnification computing part which computes an image magnification, and an image recording member drive data output part which supplies image recording member drive data.

Abstract: An image formation device having a paper feed member which separates on a one-by-one basis sheets taken out of a paper feed tray by a take-out roller and feeds the separated sheets downstream in a sheet carrying direction; an upstream side sheet carrying path which the sheets are carried to an image recording position and which has a sheet size detecting path; an image recording member which records an image; a downstream side sheet carrying path which carries recorded sheets to an eject tray; and a sheet inverting path for inverting one side recorded sheets, and further having a sheet returning path for returning one side recorded sheets to the upstream side sheet carrying path; a sheet size detecting part which detects sheet sizes; an image magnification computing part which computes an image magnification, and an image recording member drive data output part which supplies image recording member drive data.

Abstract: An image forming apparatus and method for setting a binding margin. When a binding margin displayed on an LCD display unit of an operation panel has been set, a main CPU calculates a position, at which writing of the image of an original document starts, and magnification (an enlargement ratio or a reduction ratio) in accordance with a program stored in a ROM and to correspond to the binding margin and the size of sheets which are set by the LCD display unit and the size of the original document read by a scanner, and causes a printer to perform printing in accordance with a result of the calculation. When a binding margin has been set, the image of an original document can accurately be printed without loss of the image of an end portion of the image of the original document while maintaining the specified binding margin.

Abstract: An image forming apparatus and method form respective carrier images corresponding to at least one specified area of a manuscript image of a manuscript document by designating at least one specified area of the manuscript image with a user-actuated divisional image forming key configured to designate the at least one specified area and deciding at least one of a paper size of a recording paper and a number of sheets of the recording paper in accordance with a size and a number of the at least one specified image area.

Abstract: A measuring apparatus for determining the appropriate level of magnification to reproduce a document onto an output sheet with pre-determined dimensions is disclosed. The device may be mounted to the surface of the copy machine or it may be attached to the side of the platen glass. The original document is properly lined up with the measuring device, and horizontal and vertical magnification factors are read from both sides. The smaller of the two values is then entered into the magnification system of the copy machine. This will allow an original document of any size to be copied onto a sheet of paper with pre-determined dimensions. Several devices may be used together to form a set to allow the user to determine the appropriate magnification factor for a copy sheet with virtually any dimensions.

Abstract: In the present invention, the image data of a plurality of sheets are separately and appropriately enlarged or reduced so as to be formed on a single copy sheet by independently controlling at output the magnification of the respective images in accordance with the size of the copy sheet and the image data separately stored in the memory means. Furthermore, when a first mode for copying a plurality of original documents on a single copy sheet, and a second mode for copying only a cover page on a copy sheet different from the copy sheet of the other original documents, are simultaneously selected, the cover page is copied on a cover page copy sheet and a plurality of the other original documents are copied on a single copy sheet.

Abstract: An image recording apparatus which exposes a document image to a photosensitive material to obtain a reproduced image, comprising: first magnification setting means which automatically sets a first exposure magnification in which the document image is recorded on the overall surface of the photosensitive material; second magnification setting means which changes the first exposure magnification which has been set by the first magnification setting means to set a second exposure magnification where the first exposure magnification has been increased by a predetermined value so that margin is prevented from being formed at the periphery of an image which is recorded on the photosensitive material; and exposure means which exposes the document image to the photosensitive material, on the basis of the central portion of the document image, in one of the first exposure magnification which has been set by the first magnification setting means and the second exposure magnification which has been set by the second ma

Abstract: An image forming apparatus includes a reading section for fetching first color image data subjected to color separation, a circuit for converting the first color image data into second color image data, a unit for forming a duplicate image of the first color image data by using recording materials of different types based on the second color image data, a unit for calculating the consumptions of the recording materials used for image formation in the image forming unit, and a unit for calculating a charge value for image formation based on the consumption.