HP 5961-0509 manual Job Control, 12345X, Support PJL. The ECE command should be included to ensure

Job Control

Printer Reset

Hewlett-Packard strongly recommends the use of both the ECE command and the EC%–12345Xcommand (Universal Exit Language/Start of PJL — also referred to as the UEL Command) at the beginning and end of each job. (The order of these commands is critical; refer to Table 24-1 for an example.) This allows the next job to start with the default settings as a known base. Starting with the default environment at the beginning of each print job eliminates the need to set every feature each time a job is run.

Table 24-1 Structure of a Typical Job

EC%–12345X	UEL Command (exit language).
ECE	Printer Reset Command.
Preamble	Job Control Commands.
Page 1	Page Control Commands.
	Data
￿	￿
Page n	Page Control1 Commands.
	Data.
ECE	Printer Reset Command.
EC%–12345X	UEL Command (exit language).

1.If a number of consecutive pages within a job have the same format (such as margins, VMI, HMI, etc.), the associated page control commands only need to be sent once for that group of pages.

Note	The UEL Command (EC%–12345X) has the same effect as the ECE
	command, and also enters PJL Mode of operation for printers that
	support PJL. The ECE command should be included to ensure
	backward compatibility (the UEL command is ignored if received by a
	printer that does not support PJL).
	Do not perform a printer reset within a job.

EN Job Control 24-3