chapter 4EMULATIONS AND ESCAPECODES
EMULATIONS
The printer has two emulation modes: standard mode and IBM mode.
In standard mode, the printer emulates the fhnctions of the Epson
In IBM mode, the printer emulates the IBM Proprinter II. Additional command codes are included as a superset of these emulations.
The emulationis changedby meansof DIP switch1.When ON,the printer willbe in standardmode,andwhenOFF,the printerwillbe in IBMemula- tionmode(seeChpter5). It is notpossibleto changetheemulationmodeby meansof softwarecontrolor the frontpanelcontrols.
NOTE
Rememberto turnoff theprinterbeforemakinganyDIPswitchchanges.
NUMERICALREPRESENTATION
Whenin either standard or IBM mode, any numerical parametem taken by command sequences are usually binary ratherthanASCIInumericalvalues. In @ismanual,anyASCIIvalueswillbe representedin quotes,eg “21”will represent the ASCII string 32h concatenated with 31h (in BASIC, CHR$(50)+CHR$(51)). Usuallyin theseexamples,however,hexadecimal valueswillbe quoted,as shownby thelowercase“h”followingthenumber, eg 32h.
Binary numbersover FFh are obtainedby dividingthe number into two bytes,thefirstbeingthelowbyte,andthesecondbeingthehighbyte.Inthis way, the value 123hwill be dividedinto the two followingbytes:23h and Olh.
If negative numbers are required, they are obtained by subtracting the absolutevalueof the negativenumberfrom 65536(10000h),and dividing theresultintohighandlowbytes.Forinstance,to
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