| 摘要 |
<p>A paper feeder (1) is removably attachable to an image forming apparatus (2) having a document setting means in which a document to be copied is set, comprises feed means for feeding copy paper to the image forming apparatus, document detector means (17) mountable to one lateral side of the document setting means (4) of the image forming apparatus in such a position as to face corresponding lateral side end of the document and adapted for detecting whether the document is set properly in the document setting means, determination means (18) for determining presence or absence of the document in the document setting means on the basis of detection result of the document detector means, and warning means (22) for notifying an operator of an error in setting the document upon the absence of the document being determined. <IMAGE></p> |
