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

EN Environment Commands 6-1

Environment

Commands

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.

Note For a list of default feature settings, see Appendix A.

Note 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.