CHAPTER 5 PJL - 15
6. ENVIRONMENT COMMANDS
6.1. Introduction
Our recent printers have many features which you are able to set using printer commands, through the printer
control panel or by using the remote printer console program. A combination of PJL commands and printer
emulation commands allows you to set printer features to the desired state.
This chapter describes the setting of printer features known as printer environments, PJL commands you are
able to use to set printer features to a desired state are as follows;
DEFAULT
Set the default value for environment variables. (storing them in non volatile RAM , so called NV-RAM)
INITIALIZE
Reset the current and default PJL variables to the factory default values
RESET
Reset the current PJL values to the default values
SET
Set an environment variable to a specified value until the next PJL reset condition.
6.1.1. Print environment
The printer constantly maintains four environments, which are listed below in priority order
1. Factory Default Environment
These environment setting values are permanently stored in the printer. The printer uses these settings when
it is powered on for the first time after shipping from the factory, and after the
@PJL INITIALIZE command is performed.
2. User Default Environment
These environment setting values are stored in the printer's NV-RAM and can be altered through the printer's
control panel or by using the Remote Printer Console software or the @PJL DEFAULT command. These
values are placed into the PJL Current Environment following any PJL reset condition.
3. PJL Current Environment
These environment setting values contain the current PJL feature settings. Current settings are based on the
User Default values and include any settings modified by the @PJL SET command. These settings are
changed to the User Default values when a PJL reset occurs.
4. Modified Print Environment
These environment settings become active just after a printer language is entered. At that time, the PJL
Current environment values are loaded into the Modified Print Environment and act as a base set of features.
Then, Printer language commands are used to change or modify feature settings to the desired state.
Whenever an emulation is activated or a reset command is received (a reset command includes any printer
language reset or PJL reset), the PJL Current environment settings are loaded into the Modified Print
environment.
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