Epson IR-320 Technical Reference Manual page 85

Confidential
The definition data automatic setting utility (The Windows vertion, the MS-DOS version)
Using the layer function
The 28-key definition utility compatible with the layer
The 28-key automatic definition utility compatible with the layer for Windows version
The 28-key automatic definition utility compatible with the layer for MS-DOS version
The library for changing and reading the layer.
Rev. C
IR-320 Technical Reference Manual
Setup 2-47