The device may sometimes seem to be sending a lot of Tag read error messages to Messageboard. This is not automatically a sign of an abnormal situation, it may be just because the RFID tags used in the library are of varying quality, and/or placed badly in books. It can also happen if patrons place the items on the shelfs carelessly so that the tags are hanging outside of the antennas.

To resolve this issue, a staff member should visit the cabinet and check the placement of the books. It is often enough to just tidy the rows of books, perhaps move some books to distribute them more evenly among the shelves, and push them back towards the back of the shelf.

Very large books, typically comic books or other childrens books, may have tags placed so that if the book is put on its side, the tag remains outside the antennas and may not be readable. In this case the book should be moved to an upright position so that the tag is within the antenna field.