HP 5961-0509 manual Literal Pattern Values, No Operation Value, Repeated Pattern Values

The range of numbers for the control byte is shown below.

Table 15-3 Literal Pattern Values

# of Bytes	Binary value	Decimal value
1	0000 0000	1
to	to	to
127	0111 1111	127

Table 15-4 No Operation Value

NOP value	Binary value	Decimal value
128 (-128)	1000 000	128

Table 15-5 Repeated Pattern Values

# of Repetitions	Binary value1	Decimal value
1 (-1)	1111 1111	255
to	to	to
127 (-127)	1000 0001	129

1.These negative values are represented by taking the twos complement of the value of the number.

Note	Another method to calculate the number needed in the control byte
	for some number of repetitions is to subtract the number of desired
	repetitions from 256. For example, the control value for 3 repetitions
	(4 occurrences) of a byte is 256 minus 3 = 253.
	A zero or positive value in the control byte means that the subsequent
	byte or bytes are non-replicated bytes of data. The value of the
	control byte plus one indicates the number of data bytes that follow.
	For example, a control byte of 0 means the following 1 byte is literal
	raster data. A control byte of 6 indicates that the following 7 bytes are
	literal raster data bytes.

15-18Raster Graphics EN