Operator’s Guide 135
PARAMETERS
Parameters are indicated with the following notations:
•(n), (n1), (n2), etc. and (d),(d1),(d2), etc. The printer expects to receive a data byte for each parameter.
The parentheses are not sent, only the value of parameter n or d. For example, if n=1 in Epson, IBM, or most universal control commands, then a decimal value of 1, not the ASCII character 1, is sent to the printer. On the other hand, in DEC control commands, n=1 is the value of ASCII character 1 (decimal 49). In some universal control commands, you can specify n=1 as either decimal 1 or as the ASCII character 1.
•(n1)...(n10): The printer expects to receive from one to ten specific parameters.
•(n1) + (n2 x 256): Because the printer does not use decimal numbers larger than 255, some commands use two bytes of data (n1 and n2) to specify one value. Both n1 and n2 must be in the range 0 to 255.
Two data bytes must be supplied even if only one is needed. If a value less than 256 is needed, n1 is the number itself and n2 is 0. For values equal to or greater than 256, divide the total number needed by 256. n2 is the number of complete groups of 256, and n1 is the remainder.
If you are using a programming language with MOD (modulus) and INT (integer) functions, you can use the following formulas, in which n is the total number needed:
n1 = n MOD 256
n2 = INT (n/256)
