Parameter Values Within Control Sequences. Genicom P600, 5000 Series, GEK 00031B, GEK 00031B

the ">" character (3E) at the beginning of a parameter string indicates the presence of Digital private parameters.

If the ":" (3AH), "<" (3C), or the "=" (3D) characters are received during the processing of a parameter string, or if the ">" or "?" characters are received after the first character of a parameter string, the string will be ignored.

I: Intermediate characters received after and ESC and should be in the range of 20H to 2FH. No more than 1 intermediate character is permitted. If more than one intermediate character is received before the final character, the event is noted and the entire sequence is ignored.

F: A final character is in the range of 40H to 7EH. It indicates the end of an escape sequence. The intermediate characters (if any) and the final character, taken together, define the function of the sequence.

Parameter Values Within Control Sequences

Parameter values are either numeric values or selection indices.

Numeric values typically specify a distance or a quantity pertaining to a control function. Selective parameters are interpreted as specifying a choice from an available list for a parameter. Parameter values must be unsigned digits. Leading zeroes are permitted, but ignored.

If no value is received for a parameter, a value of zero is assumed.

The maximum value for a parameter is the greatest value needed by any supported control sequence. In a PPL III compliant printer, the maximum value is the maximum paper size expressed in centipoints

(1/7200-inch). For example, if a printer supports 21-inch paper, the maximum parameter size would be 21x7200=151,200 centipoints.

If multiple parameters appear in a control sequence, they must be separated by semi-colons (";"). A maximum of 16 parameters is allowed. If more are received, only the first 16 are evaluated.

Additional parameters are ignored, but do not cause the sequence to be invalid.

Chapter 8. PPL3 Plus Emulation

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