how to keep the size of image after print it and then scanned it again ??

hi , i have image it's size(960 * 823) after print this image on A4 paper and then scan it . scanned image became it's size (3510 * 2550). please any help to obtain the original size (960* 823) when scan this image. and what's the reasons for this problem ??

[Michael Haderlein]

This has nothing to do with Matlab but rather with your scanning program, right? You might find the respective preferences there.