In 866, Enchin was asked by Daijokan (Grand Council of State) to write Kugen (official documents authorized by kokushi (provincial governors) or Gunji (local magistrates) for transfer of the ownership of private property) but made a few mistakes in writing.
貞観8年（866年）、円珍が太政官より公験を下付されたが、1～2字書き誤りがあった。