I want to acces a scanner at client side, before I was using java applet without problem but after chrome has decided to not support java what can I do. If there's solution with JS, Jquery or other language please tell me
Atalasoft has a web scanning toolkit that should meet your needs: Atalasoft WingScan product page
The product does not use browser-specific plugins and therefore works nicely in all modern browsers (IE8+, Chrome, Firefox).
Architecturally, there is a small local component that should be installed, which exposes RESTful web service. Web page uses standard JavaScript/jQuery to communicate with the service and scan/import/enhance images.
Here is the online demo, so you could try it out right away: Wing Scan Demo page
The scanning component is based on the EZTwain library, and it includes a number of image processing algorithms that improve quality of scanned images (deskew, autorotate, blank page detection, etc.)
You can optionally license and use embedded VRS technology, which I have to say is impressively good at cleaning up scans.