HP (Hewlett-Packard) PJL Photo Scanner User Manual


 
vi EN
Note Since actual implementation of printer commands within software
applications varies from package to package, specific examples are
not given. For examples of printer command usage with many popular
software packages, refer to HP’s Software Application Notes,
provided with the printer. The most current versions of software
application notes can be obtained through the HP Forum on
CompuServe, by fax using the HP FIRST fax service, or through
HP’s literature distribution. Refer to Appendix A for more information.
Chapter Summaries
A brief description of each chapter is provided below.
Chapter 1 - Introduction to HP PCL
This chapter gives a brief history of the development of the PCL
language, describes the PCL language levels (architecture), and
describes the PCL command structure (control codes and escape
sequences).
Chapter 2 - The Page
This chapter introduces the idea of the logical page and identifies the
area in which printing can occur. It also describes the PCL coordinate
system and the HP-GL/2 picture frame.
Chapter 3 - The Print Environment
This chapter introduces the printer’s feature settings, collectively, as
the print environment. It includes descriptions of the factory default
environment, user default environment, and the modified print
environment. The effect of printer reset functions is also described.
Chapter 4 - PCL Job Control Commands
This chapter describes the commands which provide job control.
Job control commands are usually grouped together and sent at the
beginning of a job. Job control includes restoration of the User Default
Environment, selection of the number of copies of each page to be
printed, duplex print commands, and unit of measure specification.