>...Is there a special >procedure for checking in a cleaner cartridge?
No: you simply toss them into the Convenience I/O station and the library puts them away into arbitrary cells, remembering where they are. I would hazard that the tape you inserted did not have a barcode label prefix matching the one you originally selected at the library's control panel. I concidentally added a few cleaning tapes to my library this morning, and they are all recognized, having our chosen "CLN" prefix. Richard Sims, BU
