Abstract:
An improved structure of carriage module has a datum board with a very flat surface, a linear light-source, a pair of side boards and a light-transforming module. The datum board has a flat-rigid connecting surface formed with a plurality of screw holes therein. The linear light-source is fixed at a front edge of the datum board for providing light. The side boards are respectively disposed on two sides of the connecting surface and assembled with a plurality of reflecting mirrors therebetween for reflecting light. The light-transforming module is assembled on a middle portion of the connecting surface for receiving an image and transforming the image into an electric signal. The datum board has an axle sleeve mounted on one side thereof for the carriage module to slide thereon.
Abstract:
The invention includes at least one mechanic adjusting device between the chassis of a scanner and the light base mounted with a light tube. The adjusting device is operated to adjust the position of the light tube to change the relative position with the document to be scanned. Thus, the purpose of adjusting the lightness accepted by the line to be scanned on the document to be scanned can be achieved.
Abstract:
A protruding locking pawl is provided at an end of a light guide which corresponds to a first light input surface. A recessed locking portion is formed in a frame so that the locking pawl can be locked in the locking portion. A light blocking member is slidably loosely inserted into a position where the light blocking member covers a longitudinal end of the light guide which corresponds to a second light input surface. Even if expansion and contraction occurs in the longitudinal direction of the light guide, the design dimensions of a first gap A and a second gap B can be maintained; the first gap A is formed between the first light input surface and a first light source, and the second gap B formed between the second light input surface and a second light source. Therefore, possible leakage current can be prevented.
Abstract:
PROBLEM TO BE SOLVED: To provide an image reader and an image formation apparatus which enable accurate positioning of a light guide member in a simple configuration.SOLUTION: A copier 1 includes: an LED 410; a rod-like light guide member 340 with an edge disposed facing the LED 410; a holding member 420 that holds the LED 410 and the light guide member 340 and comprises a light reflection part 421 and a light guide member holding mechanism 450 for disposing the light guide member 340 so as to be along a main scanning direction Y and positioning and holding the edge on the light guide member 340 side in the main scanning direction Y; and a first frame body 311 for holding the holding member 420.
Abstract:
PROBLEM TO BE SOLVED: To provide a mounting structure of an optical component, capable of easily mounting and certainly holding the optical component, an image reading apparatus having the same, and an image forming apparatus having the same.SOLUTION: A mounting structure of an optical component includes an elastic plate 81 that presses a light guide member 75 as the optical component to a plane portion 71a of a base plate 71 and an attachment part 71b that is provided on the base plate 71 and to which the elastic plate 81 is attached. The elastic plate 81 has first and second pressure units 81a and 81b each formed in a tongue piece shape and elastically contacting with the light guide member 75, clip units 81c and 81d that support one end of the first and second pressure units 81a and 81b and elastically sandwich the attachment part 71b of the base plate 71, and positioning holes 81f and 81g that are formed in the clip portion 81c and engage with a pair of positioning projections 71d arranged at the attachment part 71b of the base plate 71.
Abstract:
PROBLEM TO BE SOLVED: To improve the quality of a contact image sensor unit by preventing deformation of a light guide.SOLUTION: The contact image sensor unit of this invention comprises: a light source 10 for lighting a document; a bar-shaped light guide 11 for guiding light from the light source 10 to the document; a rod lens array 12 which forms an image of reflected light from the document, on a photoelectric conversion element 13; a sensor substrate 14 having the photoelectric conversion element 13 boarded thereon; a frame 15 on which they are mounted and which has a positioning part 200 for mounting the light guide 11; and a holder 16 which detachably and slidably supports a part of the light guide 11 in the longitudinal direction and which is detachably mounted to the positioning part 200.
Abstract:
밀착형 이미지 센서 유닛은, 원고 조명용의 광원(10)과, 상기 광원(10)으로부터의 광을 원고로 유도하기 위한 막대 형상의 도광체(11)와, 상기 원고로부터의 반사광을 광전 변환 소자에 결상하는 결상 소자(12)와, 상기 광전 변환 소자가 실장된 센서 기판(14)과, 이들을 장착함과 함께 상기 도광체(11)를 장착하기 위한 위치 결정부(200)를 갖는 프레임(15)과, 상기 도광체(11)를 착탈 가능하게 지지하고, 또한 상기 위치 결정부(200)에 착탈 가능하게 장착되는 지지 부재(16)를 구비하고 있다. 접착재를 사용하지 않고, 도광체(11)를 프레임(15)에 장착할 수 있으므로, 도광체(11)의 변형이나 밀착형 이미지 센서 유닛의 휨 등을 방지할 수 있다.
Abstract:
광빔의 주사방향이 정방향인지 역방향인지의 구별을 용이하게 할 수 있도록 된 구조의 광주사유니트 및 이를 채용한 화상형성장치가 개시되어 있다. 이 개시된 광주사장치는 광빔을 조사하는 광원과; 광원에서 조사된 광빔을 편향시키는 것으로, 화상구간과 이 화상구간의 양측 각각에 마련되는 제1 및 제2비화상구간에 정방향 및 역방향 주사선을 형성하는 빔편향기와; 제1비화상구간에 배치되며, 빔편향기로부터 입사된 광빔을 반사시키는 반사부재와; 제2비화상구간에 배치되며, 빔편향기로부터 직접 입사된 제1광빔과 반사부재를 경유하여 입사된 제2광빔을 수광하는 광검출기를 포함하며, 반사부재는, 입사광을 광검출기로 반사시키는 반사부와; 제2광빔이 제1광빔과 구별되도록 하는 구별부를 포함하는 것을 특징으로 한다.
Abstract:
PURPOSE: An image forming apparatus having optimized pre-heating time and a method for controlling the apparatus are provided to obtain an image with high quality more rapidly. CONSTITUTION: An image forming apparatus having optimized pre-heating time includes an input unit, a light source, a charge-coupled device(22), an A/D converter(82), and a controller(84). The input unit receives a command for executing scanning from a user. The light source emits light to an object. The charge-coupled device photographs an image of the object according to the light emitted from the light source to output an electric signal corresponding to the image. The A/D converter converts the electric signal into a digital signal. The controller controls the light source to emit light to the object when the scanning execution command through the input unit while the light source is turned off. The controller decides whether or not the object is scanned according to the digital signal output from the A/D converter.