Xerox 721P87491 manual Pcl, Maintaining image quality

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PCL 5

The DocuPrint NPS system supports the following functions for source documents:

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On monochrome systems, printing of PCL 5e masters containing PCL commands, HP-GL/2 commands, fonts, and data to be printed.

On highlight color models, printing of PCL 5e monochrome or PCL 5c color masters containing PCL commands, HP-GL/2 commands, fonts, and data to be printed.

Jobs can be submitted using the HP LaserJet 4 or LaserJet 4Si print drivers for monochrome printing with PCL 5e, or the HP Color LaserJet for highlight color printing with PCL 5c.

DocuPrint NPS supports most HP PCL commands, features, and fonts, including those for PCL (the printer control language) and HP- GL/2 (the vector graphics language). The implementation of PCL 5e on DocuPrint NPS emulates the HP LaserJet 4. The implementation of PCL 5c on DocuPrint NPS emulates the HP Color LaserJet. This chapter provides specific information about the support available.

Refer to your Hewlett Packard PCL 5 printer language publications for more information on PCL.

There is a DocuPrint NPS Change PCL Parameters command that allows you to configure your PCL printing environment. Refer to the Guide to Configuring and Managing the System, “Utility commands” for more information.

Note: In PCL commands referenced in this chapter, the sign # is replaced by a number.

Maintaining image quality

DocuPrint Models 4050, 4090, 4850, and 4890 NPS provide a resolution of 300 dots per inch (dpi), and Models 92C, 96, 4635 and 180 NPS provide resolution of 600 dots per inch. If your PDL contains scalable fonts or simple vector graphics and line art generated at 600 dpi, the differences in printing at 300 or 600 dpi are subtle. However, if your PDL contains bitmaps with a resolution of 600 dpi, printing at 300 dpi causes a degradation in image quality. To preserve image quality, regenerate the bitmaps at the printer resolution of 300 dpi or regenerate them as simple line art. The 600 dpi printers can accept jobs with resources in either 300 or 600 dpi.

Note: Though you can print documents containing 300 dpi bitmaps on a 600 dpi printer, there can be an impact on performance as the printer processes the image for 600 dpi printing.

XEROX DOCUPRINT NPS GUIDE TO USING PAGE DESCRIPTION LANGUAGES

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Contents Version 7.1 August 2000 721P87491 Page Operation safety Laser safetyOzone information Conductor may result in risk of electrical shock. grounding Table of contents PostScript Index VippViii About this guide ContentsConventions Introduction Related information Related publicationsPostScript publications Vipp publication HP PCL 5 publicationsMaintaining image quality PCLOFF PCL 5 font support PCL 5 media supportPCL 5 fonts installed with NPS software PJL commands PCL command supportPCL Copy command Duplex PCL Copy command example PCL Copy command examplePCL Duplex commands DocuPrint NPS Collated HP LaserJet 4si PCL Duplex commandsPCL Job Separation command PCL media selection PCL Paper Source command tray assignmentPrecedence in selecting media PCL Offset Registration commands PCL Output Bin commandPCL 5 coding recommendations PCL 5c supportPCL 5c functions not applicable to DocuPrint NPS PCL 5c coding recommendationsLimitations for custom PCL 5c drivers Driver recommendations for PCL 5cImplementation-dependent operations Coordinate system default matrixFloating-point arithmetic and math operators Adobe Type1 PostScript fonts FontsFont Typeface User-defined fonts Loading fontsType 1 fonts Using Adobe Type 1 fontsProducing Type 1 fonts for use with DocuPrint Using a Type 1 font in a documentPostScript language extensions PostScript with embedded PJL commandsSystem Dict Server Dict User DictIdleTime Dictionary Status DictDfltkIdleArry needflush Nonstandard definitions Appearance consistency Printer resolution and resolution enhancementExamples of nonstandard definitions Statusdict UserdictDpi image Printed on a 300 dpi printer Printer imaging characteristics Proprietary PostScript extensions Font consistencyControl-D as binary data and end-of-job Control-Z and superfluous errorsSolution to control-Z and control-D problems Multiple jobs in one input file Simulated mixed plex DocuPrint NPS implementation of PostScript LevelScan conversion details Printer Controller operationsStroke Shapes FillCurved shapes Zero-width lines strokesImages Image quality Rendering of color and gray values transfer function Implementation limits PostScript printer description PPD filesImplementation limits File operators and standard devicesQuantity Limit Description PostScript VM limits Path limitsSetCacheDevice Device orientation and setscreen operatorObsolete operators-banddevice, framedevice, renderbands PostScript storage object size limitsArc to Bezier conversion-pathforall Print performance related to image printing Creating the necessary PostScript Ccitt Group 3Scan order and rotation Image orientation mismatch a PurposeImage orientation mismatch B 10.Image pixel sequence example Summary Considerations11.Scaling and resolution example Scan resolution and scaling12.PostScript with embedded image normal scan order MaxX exch def /minY exch def /minX exch def 14.Actual PostScript print Page Vipp Operating environment FunctionalityVipp line mode extension XGFNub Page Ccitt SymbolsIndex PCL PPD Index

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.
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