HP LaserJet 1005 HP PCL/PJL reference - Printer Job Language Technical Referen - Page 75
PJL Environment Variables, Environment Commands 6-11
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PJL Environment Variables This section lists the PJL environment variables. General PJL environment variables (those not printer language-specific) are listed first, followed by printer language-specific variables. For most variables except the read-only variables, value settings can be modified using the following commands: • SET - sets PJL Current Environment settings that remain active until the next "PJL reset condition" (e.g. JOB, EOJ, RESET, INITIALIZE commands-see page 6-8). • RESET - the PJL RESET command defaults the PJL Current Environment to the User Default Environment (feature settings set with the DEFAULT command or the control panel keys). • DEFAULT - modifies the User Default settings (stored in NVRAM in those printers containing NVRAM). • INITIALIZE - defaults all environments to the Factory Default settings. You can request value settings for printer features using the following two commands: • INQUIRE - requests the PJL Current Environment settings. • DINQUIRE - requests the User Default (control panel) settings. (The INQUIRE and DINQUIRE commands are discussed in Chapter 7.) Note Whenever possible, use printer language commands to set printer features. Use PJL commands only when there are no printer language commands available for a desired feature. When setting printer features with PJL, use the SET and RESET commands if you want to affect the current PJL job only. Using the DEFAULT and INITIALIZE commands affects the current job and succeeding jobs (these commands should only be used when you require a command that affects more than just the current job). EN Environment Commands 6-11