Environment Commands; Introduction; Print Environment - Brother HL-Series Technical Reference Manual

Revision C 16/01/96

6. ENVIRONMENT COMMANDS

6.1. Introduction

The HL-10h, HL-1260 and HL-660 printers have many features which you are able to set using printer
commands or through the printer control panel (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, and PJL
commands you are able to use to set printer features to a desired state 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.

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
values 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 through the printer's control
panel (Remote Printer Console) or @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 setting
values are changed to the User Default values as the default 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 (reset command includes any
printer language reset or PJL reset), the PJL Current environment settings are loaded into the Modified
Print environment.
Chapter 3 "PJL" - 17