In the Internet there was a video message Google employee Matt Cutts about the rules of the lifting of sanctions imposed by their search engine.
According to him, it all depends on the type of sanction imposed.
It divides them:
1. Automatically imposed (Algorithmic Penalties). Imposed by the system when an online component that does not meet the rules of Google.
2. Superimposed in manual mode (Manual Penalties). Google employee imposed after consideration of the complaint on the website by the users.
Methods for removal of sanctions
1. In the first case, a support request needs to be done, the sanctions are removed as well as the overlap - ie in automatic mode (immediately after the removal of components that do not meet the rules of Google).
2. But the penalties imposed by hand, will be removed after a certain period of time. What it is - it depends on the severity of the offense. However, in this case, you must submit the request to Google to review the situation with the site.