Abstract:
An image reading apparatus comprising a photosensor for receiving light from a light source through an original document, a wiring section for driving the photosensor, a circuit for driving the photosensor and for processing an output signal from the photosensor. The apparatus includes a first substrate having the photosensor and the wiring section thereon, and a second substrate having the circuit thereon and being separated from the first substrate. The second substrate is fixed above the first substrate.
Abstract:
PURPOSE: An image sensor unit and an image reading apparatus are provided to perform illumination correction in case a temperature shift is generated in a light emitting wavelength of an LED(Light Emitting Diode). CONSTITUTION: A white reference data generating circuit(C) generates white reference data for indicating reference illumination of white. A correction data generating circuit(D) generates correction data based on white standard data. The correction data indicates reference illumination of white. A comparison circuit(E) calculates a correction coefficient from the correction data.
Abstract:
본 발명은 레지스트레이션 오차 보정에 의해 유발되는 화상 누락을 방지할 수 있는 화상 형성 장치, 그 제어 방법 및 프로그램을 제공한다. 기억 매체 내에 기억되고 화상 캐리어 상에서의 노광 주사 방향으로의 노광 광의 주사선의 오차량을 나타내는 오차량 정보가 획득된다. 화상 데이터는 획득된 오차량 정보를 기초로 하여 변형된다. 인쇄 매체 상에 시각화되는 화상의 출력 위치를 제한하기 위해 마스킹 영역이 변형된 화상 데이터의 변형량을 기초로 하여 변형된다. 화상 형성 장치, 화상 데이터 기억 수단, 오차량 정보의 기억 수단, 제1 변형 수단, 제2 변형 수단
Abstract:
This invention provides an image forming apparatus capable of preventing image omission caused by registration error correction, a control method therefor, and a program. Error amount information is acquired which is stored in a storage medium and represents the error amount of the scanning line of exposure light in the exposure scanning direction on an image carrier. The image data is modified on the basis of the acquired error amount information. A masked area for restricting the output position of an image visualized on the printing medium is modified on the basis of the modification amount of the modified image data.
Abstract:
An illumination device includes a light guide made of plastic, and a light source including a light emitting element whose dominant wavelength is a light emission wavelength in an infrared region, and identifies a banknote. White reference plates are provided at positions that are at opposite ends of a rod lens array and cover respective areas external to an image region across the banknote. A correction coefficient is acquired by calculation. The calculation is made by correcting an illuminance such that IR correction data is substantially identical to IR reference data preliminarily stored in a memory circuit in a signal processor on the basis of IR white reference data representing a white reference illuminance generated from light reflected from the white reference plates. The correction coefficient is used for correcting IR image data when the banknote is read.
Abstract:
This invention provides an image forming apparatus capable of preventing image omission caused by registration error correction, a control method therefor, and a program. Error amount information is acquired which is stored in a storage medium and represents the error amount of the scanning line of exposure light in the exposure scanning direction on an image carrier. The image data is modified on the basis of the acquired error amount information. A masked area for restricting the output position of an image visualized on the printing medium is modified on the basis of the modification amount of the modified image data.
Abstract:
Registration of an image with respect to a recording medium in a film recorder or the like is provided by first roughly positioning the recording medium in a support. A beam is then scanned across an unused portion of the recording medium until it impinges a fixed reference mark such as a sprocket hole edge. The coordinates of the beam are determined at the reference mark, and a registration signal is computed therefrom. The beam is then scanned across the recording medium in response to the registration signal to record information in registered relation to the reference mark. An intensity profile of the beam is calculated as it passes over an edge of the recording medium. The focus of the beam is then adjusted according to the intensity profile. Adjustment of both beam focus and lens focus is provided.
Abstract:
A method and apparatus are described for improving the geometric fidelity of images reproduced in a charged particle beam device. The beam is deflected across a sensitive medium to form a test image of predetermined configuration. The test image is compared with a reference image and geometric deviations measured, at a number of points, are used to calculate correction signals required to modify the beam deflection to offset the deviations. Circuit adjustments are then made to provide the calculated correction signals. The correction signal adjustments are accomplished in separate non-interactive circuits for each of a plurality of predetermined corrections which only require a one time adjustment.
Abstract:
PROBLEM TO BE SOLVED: To reduce ghost noise.SOLUTION: An erection equal-magnification lens array plate 11 includes: a first lens array plate 24 having a plurality of first lenses 24a arranged regularly on a first surface 24c and a plurality of second lenses 24b arranged regularly on a second surface 24d facing the first surface 24c; and a second lens array plate 26 having a plurality of third lenses 26a arranged regularly on a third surface 26c and a plurality of fourth lenses 26b arranged regularly on a fourth surface 26d facing the third surface 26c. The first lens array plate 24 and the second lens array plate 26 have the second surface 24d and the third surface 26c faced and laminated so that the corresponding lens sets compose a coaxial lens system. In this case, an erection equal-magnification image of an original G is formed on an image surface on the fourth surface 26d side by receiving light from the original G on the first surface 24c side. Annular inclined plane sections 24f and 26f are formed surrounding the respective second lenses 24b and the respective third lenses 26b.
Abstract:
This invention provides an image forming apparatus capable of preventing image omission caused by registration error correction, a control method therefor, and a program. Error amount information is acquired which is stored in a storage medium and represents the error amount of the scanning line of exposure light in the exposure scanning direction on an image carrier. The image data is modified on the basis of the acquired error amount information. A masked area for restricting the output position of an image visualized on the printing medium is modified on the basis of the modification amount of the modified image data.