Class / Patent application number | Description | Number of patent applications / Date published |
399389000 | Having detection of size or type | 14 |
20080247794 | IMAGE FORMING DEVICE, CONTROL METHOD OF IMAGE FORMING DEVICE, PROGRAM FOR ACHIEVING CONTROL METHOD, AND STORAGE MEDIUM FOR STORING PROGRAM - An image forming device comprises: an image forming unit adapted to execute image formation on a recording medium; and a writing unit adapted to be able to execute at least an information writing operation in a non-contact manner to a non-contact IC added to the recording medium. It is controlled whether or not the image forming unit should execute the image formation on the recording medium, according to a result of the information writing operation executed by the writing unit to the non-contact IC added to the recording medium. | 10-09-2008 |
20090067907 | Media Width Sensors And Methods Of Use - The present application is directed to sensors and methods of use to determine a width of a media sheet moving along a media path. In one embodiment, the sensor includes a shaft that extends at least partially across the media path. First and second paddles may extend outward from the shaft and into the media path. The paddles may be axially spaced apart along a length of the shaft, and the first paddle may be positioned upstream along the media path from the second paddle. A flag may extend outward from the shaft. A detector may be positioned in proximity to the shaft. In use, the shaft may rotate during contact between the media sheets and the paddles to move the flag. The detector may be able to differentiate between a first amount of rotation due to contact with a wide media sheet and a second amount of rotation with a narrow media sheet to determine a width of the media sheets. | 03-12-2009 |
20090087238 | Medium conveying device and image forming apparatus - A medium conveying device includes a conveyance path that is used for conveying medium; a medium guide that is furnished on the conveyance path and has at least one swing supporting portion; and a supporting section that supports the swing supporting portion to swing along a separation direction separating from the conveyance path so as to make the swing supporting portion support the medium guide to swing. | 04-02-2009 |
20100119272 | IMAGE FORMING APPARATUS CAPABLE OF INPUTTING A PAPER SIZE - An image forming apparatus, including a display part to input information about a print medium; a print medium tray to load the print medium; a paper guide to align the loaded print medium in the print medium tray; a sensor to sense information about the a of the print medium according to movement of the print medium guide; and a control unit to receive the sensed print medium size information from the sensor and to input the print medium size into the display part. | 05-13-2010 |
20100221050 | SHEET SIZE DETECTING APPARATUS - A sheet size detecting apparatus having a first arm moved by a moving sheet contacting therewith, a second arm moved by the moving sheet contacting therewith, the second arm being disposed at a location differing from that of the first arm in a direction orthogonal to the movement direction of the sheet, and a sensor, wherein the output level of the sensor when only one of the first arm and the second arm has been moved is the same as the output level thereof when neither of the first arm and the second arm is moved, and the output level of the sensor when both of the first arm and the second arm have been moved differs from the output level thereof when neither of the first arm and the second arm is not moved. Thereby, the cost can be suppressed and yet, the wrong detection of the sheet size can be prevented. | 09-02-2010 |
20100329759 | SHEET LENGTH MEASURING APPARATUS, IMAGE FORMING APPARATUS, AND SHEET LENGTH MEASURING METHOD - A sheet length measuring apparatus that includes: a rotating body that rotates in contact with a sheet delivered through a delivery path; detecting units that are located upstream and downstream of the rotating body respectively, and detect a position of the sheet delivered through the delivery path; a delivery unit that is located in at least one of positions between the detecting unit located upstream and the rotating body, and between the detecting unit located downstream and the rotating body, and delivers the sheet on the delivery path; and a rotation amount detecting unit that detects a rotation amount of the rotating body with using a period when the sheet is detected by the detecting units respectively located upstream and downstream of the rotating body as a measurement period. | 12-30-2010 |
20110076077 | MEASURING DEVICE OF RECORDING MEDIUM LENGTH, IMAGE FORMING APPARATUS, AND COMPUTER READABLE MEDIUM - A measuring device of a length of a recording material includes: a rotary unit that rotates while coming into contact with the recording material; a pulse signal output unit that outputs a pulse signal in response to a rotation angle of the rotary unit; first and second detection unit that detect the recording material; and a calculation unit that calculates a length of the recording material. The calculation unit calculates a peace of the length of the recording material corresponding to a time below pulse interval of the pulse signal and then calculates the total length in the transport direction of the recording material. | 03-31-2011 |
20120014730 | IMAGE FORMING APPARATUS - An image forming apparatus includes a paper cassette feeding a recording material, an image forming unit forming an image on a photosensitive member, a primary transfer roller transferring the image onto an intermediate transfer belt, a secondary transfer roller transferring the image onto the recording material, and a sensor detecting the size of the recording material. The timing of starting feeding the recording material is earlier than the timing of starting forming the image. When image formation on the recording material is started, until the sensor detects the size of the recording material, a plurality of images are formed on the intermediate transfer belt at a first interval according to a predetermined recording material size, and after the sensor detects the size of the recording material, a plurality of images are formed on the intermediate transfer belt at a second interval according to the detected recording material size. | 01-19-2012 |
20120027483 | APPARATUS AND METHOD OF DETERMINING THE TYPE OF PAPER SHEET, AND IMAGE FORMATION APPARATUS - According to one embodiment, a sheet type determination apparatus includes a tray, light source, detection unit, database, and operation unit. The tray is configured to hold a sheet bundle formed by stacked sheets. The light source emits illumination light to a first region. The detection unit detects a light intensity distribution of transmitted light emerging from a second region. The transmitted light is generated as the illumination light passes through the sheet bundle, and the second region is different from the first region. The database stores a table describing a relation between reference attenuation rates and types. The operation unit is configured to calculate an attenuation rate of the transmitted light based on the light intensity distribution, and determine a type of the sheets by comparing the attenuation rate with the reference attenuation rates. | 02-02-2012 |
20140037351 | RECORDING MATERIAL DETECTING APPARATUS AND AN IMAGE-FORMING APPARATUS - A recording material detecting apparatus includes a light guiding unit that allows first and second light to enter a surface of a recording material, respectively, in two directions which are not parallel; an imaging device that images a first light irradiated area and a second light irradiated area, on the surface of the recording material; and an output device that outputs information on a surface condition of the recording material based on an output of the imaging device. When viewed in a direction along the center optical axes of first and second light sources which are of the same type, the first and second light sources are arranged such that the respective reference lines of the rotational phases around the center optical axes are rotated in opposite directions by approximately the same angles from a line perpendicular to the direction where the first and second light sources are arrayed. | 02-06-2014 |
20140056629 | IMAGE FORMING APPARATUS - An image forming apparatus, which forms an image at an image forming interval and feeding timing corresponding to a predetermined recording material size, includes a control unit (a controller unit and an engine control unit) for controlling the feeding timing to be earlier, when the size of a recording material detected by a detection unit (the engine control unit and an registration sensor) is smaller than the predetermined recording material size. | 02-27-2014 |
20140079458 | SHEET MATERIAL IDENTIFICATION DEVICE AND METHOD, AND IMAGE FORMING APPARATUS - A sheet material identification device includes a humidity adjuster, a detector, and a controller. The humidity adjuster adjusts the humidity of a sheet material by causing the sheet material to either release or absorb moisture. The detector detects the humidity of the sheet material before and after the adjustment of the humidity. The controller calculates a first difference in humidity of the sheet material before and after the adjustment of the humidity, and identifies the type of sheet material on the basis of the first difference. | 03-20-2014 |
20140348563 | SHEET CONVEYING APPARATUS, IMAGE FORMING APPARATUS, SHEET CONVEYING DISTANCE CALCULATION APPARATUS AND SHEET LENGTH CALCULATION APPARATUS - A sheet conveying apparatus includes a sheet conveying unit that conveys a sheet including a drive roller, a driven roller, and a rotary encoder provided on a rotational axle of one of the drive roller and the driven roller; a conveying amount measuring unit that measures a conveying amount of the sheet; a first detection unit positioned downstream of the sheet conveying unit, the first detection unit being positioned apart from the drive roller and the driven roller not to overlap with the drive roller and the driven roller in the conveying direction; a second detection unit positioned upstream of the sheet conveying unit; and a conveying distance calculation unit that calculates a conveying distance of the sheet based on the measured result by the conveying amount measuring unit and the detected results detected by the first detection unit and the second detection unit. | 11-27-2014 |
20150117924 | IMAGE FORMING APPARATUS - An image forming apparatus includes a storage unit, a conveyance unit, an opening, and a movement unit. The storage unit stores, in an apparatus body of the image forming apparatus, a sheet having an image. The conveyance unit conveys the sheet having the image to the storage unit. The opening exposes the stored sheet to an outside of the apparatus body. The movement unit is movable to a first position where the sheet conveyed to the storage unit can be stored in the storage unit and a second position. The stored sheet is moved when the movement unit moves from the first to the second position, and is stopped in an exposed state where a part of the sheet is exposed to outside the apparatus body from the opening. The movement unit moves from the second to the first position when the sheet is in the exposed state. | 04-30-2015 |