POSTSCRIPT

Figure 2-7.Typical desktop printer device coordinate

PostScript storage object size limits

The two main PostScript storage objects are the font cache and virtual memory (VM), which stores composite PostScript data structures such as the user and system dictionaries. The font cache, VM, and data structures in VM do not have standard sizes. Therefore, test masters that print out these object sizes are useless for testing consistency across different PostScript printers.

A small font cache size does not normally cause a PostScript master to fail; it should affect only performance.

Refer to the PostScript Language Reference Manual for typical memory limits for PostScript products. These limits should be considered minimum values.

Obsolete operators—banddevice, framedevice, renderbands

The banddevice, framedevice, and renderbands operators are obsolete and should not be used. These operators were not meant to be included in page descriptions and were used only in certain implementations for device setup.

Arc to Bezier conversion—pathforall

The pathforall operator returns the components of the current path. Path components arc, arcn, and arcto are converted to sequences of curveto components. The standard does not define the arc to Bezier (curveto) conversion algorithm. Therefore, different PostScript implementations may return different pathforall results.

Note: All PostScript implementations should return the same equivalent path, but the path may be composed of a different number of curveto components. PostScript masters that depend on a particular arc to Bezier conversion algorithm may not be consistent across different PostScript printers.

2-26

XEROX DOCUPRINT NPS GUIDE TO USING PAGE DESCRIPTION LANGUAGES

Page 52
Image 52
Xerox 721P87491 manual PostScript storage object size limits, Obsolete operators-banddevice, framedevice, renderbands

721P87491 specifications

The Xerox 721P87491 is a remarkable printing device that showcases advanced technology tailored for professional environments, ensuring high-quality output and efficiency. Aimed at meeting the demands of busy offices, this model is recognized for its reliability and innovative features.

At the core of the Xerox 721P87491's appeal is its robust printing capabilities. It offers an impressive resolution, enabling the production of crisp and clear documents, whether in black and white or color. This high-resolution output is particularly essential for businesses that require detailed graphics, intricate charts, or professional-grade presentations.

One of the standout features of the Xerox 721P87491 is its impressive speed. It is designed to handle high-volume printing, significantly enhancing productivity in fast-paced work environments. With a rapid print speed per minute, users can expect swift processing of print jobs, ensuring that document delivery times are minimized.

The device also boasts advanced connectivity options. It supports both wired and wireless connections, allowing for seamless integration into a variety of office networks. This flexibility facilitates printing from multiple devices, including desktop computers, laptops, and mobile devices, enhancing overall workflow and collaboration within teams.

Additionally, the Xerox 721P87491 incorporates user-friendly interface options. With an intuitive touchscreen display, navigating the printer's functions becomes simpler. Users can easily access common features, adjust settings, and manage print jobs efficiently.

Another notable characteristic is its advanced security features. Given today's emphasis on data protection, the Xerox 721P87491 is equipped with robust security protocols to safeguard sensitive documents. It includes features like secure print, which holds documents until the authorized user enters a PIN, ensuring confidentiality in high-stakes environments.

Moreover, the Xerox 721P87491 demonstrates an emphasis on environmental sustainability. It is designed to be energy efficient, reducing power consumption during both idle and active states. The printer also supports duplex printing, which helps decrease paper use, contributing to a more sustainable office practice.

In summary, the Xerox 721P87491 is a versatile printing solution that merges efficiency, quality, and advanced technology. With high-speed printing, intuitive controls, robust security features, and a commitment to sustainability, it stands out as an excellent choice for businesses aiming to boost productivity while maintaining high standards. Its capabilities make it a worthy investment for any modern office environment.