Examples of when the direct deposit information should not be entered into the system. The following 6 boxes are examples of entries on line 21a where the routing numbers and account numbers are not to be entered. Box 1, 2 and 3 are examples where the routing numbers and account numbers are preprinted Xs. Box 4 is an example of hand written or preprinted hyphens. Box 5 is an example of hand written Xs. box 6 is an example of handwritten or preprinted Os.