HP 2500 HP PCL/PJL reference - Printer Job Language Technical Reference Manual - Page 65

6 Environment Commands Note Note Introduction Hewlett-Packard printers have many features you can set using printer commands or by pressing control panel keys. Since previous jobs can change feature settings to unwanted values, applications should set printer features affecting the print job to a desired state at the beginning of the job. Setting features to a desired state is easily accomplished using a combination of PJL and printer language commands. This chapter describes sets of printer features known as print environments, and the PJL commands you use to set printer features to a desired state, such as: • DEFAULT sets the default value for environment variables, storing these values in non-volatile RAM. • INITIALIZE resets the current and default PJL variables to the factory default values. • RESET resets the current PJL variables to the default values. • SET sets an environment variable to a specified value until the next PJL reset condition. For a list of default feature settings, see Appendix A. For information about products newer than those included in this book, see the Printer Job Language Technical Reference Addendum, which includes product-specific information about newer products, as well as commands and variables added to PJL to support these newer products. EN Environment Commands 6-1