After you create a custom printer form, tip 0366, the form does not appear in the list of form names?
Some printer drivers have specific limits on paper sizes. Forms that are outside these limits may not be available.
Example: The Hewlett-Packard LaserJet 5SI MX printer has specific limits when using a raster driver:
Minimum: 3.67 X 7.5 inches (93 X 191 mm)
Maximum: 11.7 X 17.7 inches (297 X 450 mm)
In the case of the above printer, the PostScript printer driver has less restrictive limits.