HP 800, 700 manual

Introduction to HP PCL

Esc	&	l	1	o	2	A
Escape						Termination
Character						Character
Parameterized					Value
Character					Field
	Group			Parameter
	Character			Character
			Value
			Field

Notice that the "Esc" and the "&l" are dropped from the second printer command when they are combined. Also, the upper-case "O" that terminated the first command becomes a lower- case "o" parameter character when these commands are combined.

Use these three rules to combine and shorten printer commands:

4The first two characters after "Esc" (the parameterized and group character) must be the same in all of the commands that will be combined. In the example above, these are "&" and "l".

4All alphabetical characters within the combined printer command will be lower-case, except the final letter, which is always upper-case. In the combined example above, "O" becomes "o". The final character in the printer command must always be upper-case to let the printer know that the command is complete.

4The printer commands are performed in the order that they are combined (from left to right). Be sure to combine commands in the order that they are to be performed.

16 HP DeskJet 600, 700, 800, 900 & HP 2000 Series PCL Developer’s Guide