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Control Codes
100-88002 Rev B Page 67
Control Codes Overview
This OEM Integration Manual is designed to help users of the Epic 880
TM
printer
develop applications. Because Epic 880
TM
printers are specialized point-of-sale
printers with several features not normally found on general-purpose printers, they
have unique control codes that are documented in this manual.
Nomenclature
When describing control codes, confusion often occurs as to whether the description
is decimal, hexadecimal, or ASCII. To minimize the problem, this OEM Integration
Manual uses the following nomenclature when describing control code sequences.
[ ] Encloses a control character. [ ] represents a single, 8-bit value as
defined in the standard ASCII tables. The ASCII Code Table in
Appendix B lists the control codes. An example would be [ESC], which
would represent a 1BH or 27 decimal.
< > Encloses an 8-bit value in decimal format. The value is from zero to
255. An example is <2>, which represents 02H or 2 decimal.
<n> Indicates a variable parameter. The variable parameter, <n>, can have
a value from zero to 255. The meaning of <n> is described and defined
in the description of the command.
<n
1
> <n
2
> Indicates that there are two parameters, <n
1
> and <n
2
>, where both
can have values from zero to 255.
<m
1
> <m
2
> Is an TransAct
®
Printer Control Language (IPCL) parameter consisting
of two digits where <m
1
> and <m
2
> are ASCII characters from zero to
nine. The parameter is combined to form a value from zero to 99. If
<m
3
> is included, the parameter is combined to be from zero to 999. If
two values are specified, there must be two bytes added to the IPCL
code. That is, if the command specifies <m
1
> <m
2
> and the desired
value is five, it must be specified as 05.
X All other characters in control strings represent ASCII characters. For
example, [ESC] 1 represents 1BH followed by 31H.
In many cases, applications require that control sequences be specified in
hexadecimal or decimal codes. In most cases, commands are specified in ASCII,
hexadecimal, and decimal. The ASCII Code Table in Appendix D lists ASCII,
hexadecimal, and decimal equivalents.