B2签证提交了电子照片就不用打印照片了是么

http://travel.state.gov/visa/forms/forms_4401.htmlIf the confirmation page includes a photo image, then the photo upload function was successful and no separate print photograph is required.
还有通过那个电子版本就肯定可以么？因为我提交了一个分辨率小于600x600，的那个系统也提示成功了