Notary  law doesn’t address a document written in pencil.  However, the statute  does say a notarial officer may refuse to perform a notarial act unless  refusal is prohibited by law. If We do not feel comfortable notarizing a   document written in pencil – and the National Notary Association  certainly would discourage that We do – this statute may give us the  right to refuse. 
So if you cannot type your document please write your document with a pen not a pencil.