Note that print versions may use maximal paper size, though the A4 versions should also print on Letter size paper. Your printer driver must support this setting. If you have problems printing the files you may try creating a printer file (if supported by your printer driver). This file can then be copied to the printer by GhostScript, DOS copy etc. Note that you should switch off memory usage when creating the printer file and your memory is smaller than the file size (20-60 MB).
The file naming format is eOOOnAASa3c.ext where
eOOOnAA is longitude and latitude of the upper left corner of the map (e.g. e006n52 for East 6 North 52)
S is the latitudinal size in degrees (S=2: 2 degrees,S=1 1deg20min)
a3/a4 paper size
c if map contains geophysical landscape.
ext is ps,pdf,zip or jpg.