Ricoh Company, Ltd.

Makoto Hino

Norio Michiie

Susumu Imakawa

Katsumi Yamaguchi

Yumiko Kishi

Kazuhiro Fujita

Satoshi Nakayama

Tomohiro Nakajima

Tomoko Takahashi

Hiroaki Kobayashi

Hideyo Makino

Keiichi Serizawa

Tomoaki Suga

Takahiro Konishi

Mitsuo Hasebe

Kazuhiro Akatsu

Toshio Kawakubo

Satoshi Mohri

Keiichi Miyamoto

Noritaka Masuda

Masako Yoshii

Yoshiaki Morita

Osamu Takase

Provided is a container including a container body, and an image on the container body. The image includes a plurality of dented portions and non-dented portions. Each of the dented portions is formed of a plurality of processed portions. The plurality of processed portions are disposed linearly, contacting or overlapping each other along a first scanning direction. A width of each of the dented portions in a second scanning direction orthogonal to the first scanning direction changes cyclically along the first scanning direction. Each of the dented portions has bossed portions along the first scanning direction between adjoining ones of the processed portions.

Container and content containing body, and method for producing container and container producing apparatus

A position measurement reference sheet for image position measurement on a recording medium includes a body having a front face to face an image reading face of a reading device, a recording medium detection window in the body to measure a position of an end of the recording medium, and an image detection window in the body to measure a position of an image on the recording medium. The position measurement reference sheet is interposed between the image reading face and the recording medium.

Position measurement reference sheet, image forming apparatus, and image position measurement method

An apparatus divides a photographed image of a sheet-like inspection object into blocks each of which has a size of a predetermined number of pixels by a predetermined number of pixels, calculates a longitudinal variance based on pixel values in a longitudinal direction in each block and a lateral variance based on pixel values in a lateral direction in the block, determines whether the block is a defect candidate using the longitudinal variance and the lateral variance as sheet-like inspection object defect determination evaluation values, and determines, based on one of a length and an area of the blocks determined as the defect candidates, whether the sheet-like inspection object has defect.

Defect inspection apparatus for inspecting sheet-like inspection object, computer-implemented method for inspecting sheet-like inspection object, and defect inspection system for inspecting sheet-like inspection object

A non-transitory computer-readable storage medium stores image data for adjustment of image formation. The image data includes a cross-hair formed in a corner of a recording medium, and a corner edge detection mark formed to detect a folded corner edge of the recording medium from read data obtained when the corner of the recording medium including an area where the cross-hair is formed on one side is folded to an opposite side to the one side of the recording medium and an image reader reads the opposite side.

Image forming apparatus, method, and program product adjusting image formation based on reading cross-hair at folded corner of print medium

An image reading system is disclosed that has an image information reading unit for reading optical information on a manuscript, and an image outputting unit for outputting the optical information read by the image information reading unit to a recording medium. The system includes

Image reading system

An image forming apparatus including: at least one image forming unit including an image bearing member bearing a latent image and a developing device configured to develop the latent image with a developer including a toner to form a toner image thereon; optionally an intermediate transfer configured to receive the toner image from the image bearing member; a transfer device configured to transfer the toner image to a receiving material; an image pattern measuring device configured to evaluate at least a formal property of a test toner image formed on the image bearing member or the intermediate transfer medium; an image quality predicting device configured to predict image qualities of the toner image to be formed on the receiving material on the basis of the evaluation data; and an image forming condition adjusting device configured to adjust image forming conditions on the basis of the image quality prediction data.

Image forming apparatus, image forming system, image forming condition adjusting method, computer program carrying out the image forming condition adjusting method, and recording medium storing the program

A recording apparatus can apply an appropriate amount of setting agent, which is in the form of powder, to an intermediate transfer member. The setting agent is provided to a plurality of depressions formed on an application roller and transferred onto the intermediate transfer member, or formed on the intermediate transfer member, which moves the setting agent to a position where a visible image is formed by applying the droplets of a liquid onto the setting agent. The setting agent increases the viscosity of droplets of the liquid for forming the visible image to be transferred to a recording medium. The visible image formed on the setting agent is transferred onto the recording medium.

Recording method and apparatus for forming an image on a powder layer uniformly distributed on an intermediate transfer member

The color matching methods and systems according to the current invention accomplish accurate color matching by separating causes for creating color discrepancies in a predetermined color patch on an image-carrying medium and a color monitor display. In general, the chromaticity values of the predetermined color patch are measured under a standard calorimeter light source whose luminance is different from that of ambient light. The corresponding color is displayed based upon the luminance of the standard light. However, ambient light does not generally have the above luminance. Thus, when the color display is compared against the color patch under ambient light, the colors do not appear identical. To solve this and other problems, the current invention discloses methods and systems to adjust the display signals based upon the luminance of ambient light.

Method and system for correcting color display based upon ambient light

A multi-beam light source device which can be used in an optical scanning device has less optical cross-talk and an improved stability in frequency response. The multi-beam light source device comprises a semiconductor laser array having a plurality of light emitting sources, a light receiving element array having a plurality of light receiving elements and a half mirror splitting a light beam emitted by the semiconductor laser array into at least two split light beams. A light converging unit is provided for converging one of the split light beams at a predetermined focal point. The light receiving element array is positioned at the focal point of the light converging unit for receiving the concentrated one of the split light beams. A controlling circuit is provided for controlling an output of the semiconductor laser array in accordance with the amount of light received by the light receiving element array. Optical cross-talk generated between the split light beams emitted by adjacent ones of the light emitting sources is suppressed by an optical cross-talk suppressing unit.

Multi-beam light source device and optical scanning apparatus using the

An optical recording apparatus comprises a laser diode array including a plurality of laser diodes for producing a plurality of laser beams in response to a drive signal indicative of an image, an optical system for scanning the laser beams on a surface of a photosensitive body, a beam splitting unit for splitting the laser beams produced by the laser diodes to form control laser beams; a driver for driving each of the laser diodes in the laser diode array, an optical detection unit provided for detecting the control laser beams, the optical detection unit including a plurality of photodetectors in correspondence to the laser diodes in the laser diode array in a one-to-one relationship, each of the photodetectors producing an output signal indicative of an optical power of the control laser beam incident thereto, and a control unit supplied with the output signals from the photodetectors in the optical detection unit for controlling the driver such that each of the laser diodes in the laser diode array produces the laser beam with a controlled optical power.

Optical recording apparatus capable of controlling optical power of

A method and an apparatus for processing an image signal generated in an image reading apparatus comprising a light source for illuminating a document, an optical system, and an optical detector for detecting a light which is reflected at a reading point on the document and passes through the optical system and for outputting an image signal corresponding to an amount of light detected thereby are disclosed. A secondary light source effect function which describes a degree that a light reflected at each point other than the reading point on the document affects the image signal corresponding to the reading point is obtained. The image signal output from the optical detector is corrected based on the secondary light source effect function and an image signal corresponding to each point so that a component corresponding to a light which is reflected at each point other than the reading point and affects the image signal corresponding to the reading point is eliminated from the image signal.

Image signal processing method and apparatus with correction for a

In a method and an apparatus for measuring a rotary speed of a rotary body, right and left circularly or elliptically polarized lights are incident to a polarizer attached onto a rotary face of the rotary body as a measured object. An optical beat signal is generated when the polarized lights are incident to the polarizer. This optical beat signal is detected a photodetector, etc. The rotary speed of the rotary body is calculated from a beat frequency of the optical beat signal. An optical rotator may be arranged on an optical path on which the right and left circularly polarized lights obtained through a 1/4 wavelength plate are transmitted toward the polarizer. A corner-cube prism may be arranged between the rotary face and the polarizer to reflect the light beam transmitted through the polarizer toward the photodetector. The apparatus may have an optical member for totally reflecting the light beam reflected on the rotary face of the rotary body through the polarizer and guiding the totally reflected light beam to the photodetector.

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Kanagawa, Japan

Makoto Hino