Your tapes must be in FITS or IHAP format. Mount the tape on a tape drive (e.g. MTA0, see Appendix D in Vol. A) on the computer you are using and, then, start the data input with the command
INTAPE/format 1-nn A MTAx
where format defines the input format as either FITS or IHAP, nn number of files that you want to read and x is either 0 or 1 to select the tape driver. Images files will be loaded into the working area with names A0001, A0002 and so on as specified above.