HP PCL/PJL reference (PCL 5 Printer Language) - Technical Reference Manual Part I

EN Introduction 13-1

The PCL Print Model

Introduction

The Print Model feature allows images and characters to be

filled with any of the printer’s predefined shading or cross-hatch

patterns, or with a user-defined pattern. Images include any

raster graphic, such as one created with PCL raster graphics

commands (as described in Chapter 15, Raster Graphics); a

rectangular fill area (as described in Chapter 14, PCL

Rectangular Area Fill Graphics); or a character or characters

selected from any font.

Print model operation defines a pattern, source image, and

destination image. These images are applied to each other

using the print model’s transparent and opaque modes to

produce a resulting image that is a combination of the others.

The print model features, listed below, are illustrated in Figure

13-1 and Figure 13-2, and described on the following pages.

z Pattern

z Source Image

z Destination Image

z Source Transparency Mode

z Pattern Transparency Mode

Figure 13-1 Print Model Imaging