公开(公告)号：US07518760B2

公开(公告)日：2009-04-14

申请号：US10851155

申请日：2004-05-24

Applicant: Kohji Matsuda

Inventor： Kohji Matsuda

IPC: H04N1/04

CPC classification number: H04N1/125 ,  H04N1/12 ,  H04N1/401 ,  H04N1/4076 ,  H04N2201/044

Abstract: A digital copying device, which serves as an image reading apparatus for improving processing speed by adjusting the timing of various operations when reading is performed using a sheet-through system, causes a first traveling body to move beneath a white reference plate in order to read the white reference plate, and then performs an ADF shading operation to move the first traveling body beneath a sheet-through contact glass. The sheet-through contact glass is then subjected to a dirt detection operation by reading a dirt detection reference plate, whereupon an original is conveyed onto the sheet-through contact glass by an ADF to perform a sheet-through reading operation whereby an image of the original is read. When a sheet-through reading operation is to be performed, the sheet-through reading operation is started following the reception of an image reading request and after the elapse of a time (T=Ts+Tl−Td) obtained by subtracting a time Td, which extends from the beginning of the sheet-through reading operation to the point at which the tip of the original reaches a sheet-through reading position, from the sum of a time Ts required for the ADF shading operation and a time Tl required for the dirt detection operation.

Abstract translation: 作为图像读取装置的数字复印装置，其通过使用片通系统执行读取时通过调整各种操作的定时来提高处理速度，使得第一行进体在白色参考板下移动以便读取 白色参考板，然后执行ADF遮蔽操作，以使第一行进体在片状接触玻璃下方移动。 然后通过读取污物检测基准板对片状接触玻璃进行污垢检测操作，由此通过ADF将原稿传送到片状接触玻璃上，以进行片状读取操作， 原来是读的 当要执行平板阅读操作时，在接收图像读取请求之后并且经过一段时间（T = Ts + Tl-Td）之后开始直通读取操作，该时间通过减去时间Td ，其从片材读取操作的开始延伸到原稿的尖端到达平整读取位置的点，从ADF着色操作所需的时间Ts和与ADF着色操作所需的时间T1之和 污物检测操作。