Device for detecting the size of the material to be copied in copying machines
AssigneeKonishiroku Photo Industry Co., Ltd.
InventorsKoji Yukawa, Masayuki Miyazaki, Takashi Murahashi
Life of this patent
Estimating the term…
Abstract
A device for determining the size of an original or material to be copied in the copying machine wherein a color sensor is used as means for detecting the size of the original. The device comprising a colored member having a certain color, a light emitting member for throwing light upon the colored member, and a light receiving member for receiving light reflected by or transmitted through the colored member.
Claims8
A device for determining the size of an original or material to be copied in the copying machine so that appropriately sized transfer paper can be selected and fed in the copying machine comprising a colored member having a certain color and which is used as means for detecting the size of the original;
- a light emitting member for throwing light upon the colored member;
- and a light receiving member responsive to said certain color for receiving light which has impinged upon the colored member;
- whereby at least a part of the light irradiated from the light emitting member to the light receiving member is intercepted by the original placed on the copy board so as to cause the light receiving member to provide an output signal indicative of the size of the original.
Dependencies are inferred from the claim text.