Epson 4100 manual Storing Download Characters

160 Universal Control Commands

STORING DOWNLOAD CHARACTERS

Download characters are stored in RAM (temporary memory). The character currently mapped to the same data byte value in ROM (permanent memory) is not overwritten. Characters that have not been downloaded, mapped, or overlayed print from the currently selected character set stored in ROM. (See the next subsection, "Printing Downloaded Characters".) If you select another character set or change emulation mode, your downloaded characters are not overwritten.

Downloaded characters remain in temporary memory, RAM, until:

•Cleared with the "Factory Reset" option on the configuration menu or with control command SOH AzX

•Overwritten with other selections

•Cleared by setting the "Input Buffer Size" option to "Maximum (no user-defined characters)" or by setting the "Overlay Characters" option to "None"

•Power is turned off

Note: Download characters may be retained for a variable amount of time after the power is turned off.