the error E210 means there is a problem with the lense position.
Under the glass there is a lense that moves to enlarge and reduce the copies. At switch on this has to find a home position. the error code means it has failed to do so. If you look at it is is driven by a belt. The drive pully for this can be seen through the glass. This becomes miss placed and is not driven correctly. Have a look and you will see has has come out of place. You may be abls to take it appart and clean it up if not you will need a new drive assembly.
Bob, February 2008