Epson 4100 manual Character Maps

Operator's Guide 269

CHARACTER MAPS

The control commands on the next several pages enable you to pre-select four different character maps, then map them into the lower or upper data bytes when you are ready to use them. These commands are valid only while the printer is in DEC LA210 emulation.

A DEC character map is an assignment of printable characters to some data bytes between 0 and 255. It contains printable characters only and does not contain control codes.

The lower data bytes are 33 through 126 decimal (21 through 7E hexadecimal). The upper data bytes are 161 through 254 decimal (A1 through FE hexadecimal). The positions of the lower and upper data bytes are shown in the illustration on the next page.

The four pre-selectable character maps are called G0, G1, G2, and G3. "G0" through "G3" are equivalent to the character maps that Digital Equipment Corporation refers to as "Graphics 0" through "Graphics 3". The lower and upper data bytes are equivalent to the character maps Digital Equipment Corporation refers to as "GL" (Graphics Left) and "GR" (Graphics Right).

Any character map available in DEC LA210 emulation may be selected as G0, G1, G2, or G3. These selections are stored in permanent memory and are not lost at power off. Default selections are shown below:

•G0: United States Character Map

•G1: VT100 Line Draw Character Map

•G2: Multilingual Character Map

•G3: United States Character Map