There are several printing solutions available for IRIX (third-party 
  excerpts taken from "http://www.sgi.com/Products/appsdirectory.dir"):

    1. Standard IRIX print spooler

       Adequate for many PostScript printers, handles printing of text,
       PostScript, and IRIS RGB images.

    2. IRIS Impressario; http://www.sgi.com/Technology/Impressario

       Provides support for several printers, handles printing of text,
       PostScript, TIFF, JPEG, IRIS RGB, PhotoCD, and GIF files. 
       Includes a PostScript RIP (extra cost) to print to non-
       PostScript printers like the HP LaserJet, DeskJet, and DesignJet
       printers.

    3. ESP Print (Easy Software Products); http://www.easysw.com/print.html

       ESP Print is a collection of over 1200 printer drivers for the
       IRIX, Solaris, and HP-UX operating systems.  ESP Print provides
       transparent printing of text, PostScript, HPGL, GIF, TIFF,
       JPEG/JFIF, IRIS RGB, Sun Raster, PNG, and PhotoCD files to any
       supported printer.  ESP Print supports printers connected
       directly via serial, parallel, SCSI, and network printers as
       well as printers connected to MS Windows and Macintosh
       computers.  ESP Print uses the standard print spooler and is
       compatible with all IRIX and Solaris applications.

    4. FleXprint(tm) (Augrin Software ApS); http://www.augrin.dk

       FleXprint software offers easy printing in the UNIX environment
       with efficient use of PostScript level II printers connected to
       workstations or in network environments. The Motif based GUI is
       adaptive to the printer, reflecting the capabilities and choices
       for that printer. The interface gives full control of options
       for printer, page layout, image appearance and file compression
       to the user. Full functionality is also available through a
       command line interface for smooth system integration. FleXprint
       provides better quality and more speed than any alternative.
       Unique screen-to-printer color mapping with EasyColor secures
       matched and consistent color output. 

    5. FullPress(tm) (Xinet); http://www.xinet.com

       FullPress is a fully integrated OPI server that comes with a
       complete set of network applications for high-performance file
       sharing, print spooling (including comprehensive print queue
       management), and OPI server software. FullPress is transparent
       to the Mac user, allowing them to stay in their familiar Mac
       environment. It works with all major layout programs and
       supports all major image formats, including Crosfield Studio
       9000. FullPress reduces network traffic in any prepress
       environement where large image files are being shared over a
       UNIX/Mac network. This advanced Xinet software runs on IRIX 5.x
       and 6.x, and Sun SPARC stations. 

    6. Image Proof Printer Drivers (ColorByte Software)

       Image Proof Printer Drivers. With its sate-of-the-art CIE-based
       3-D lookup tables, ColorByte printer drivers provide "Out of the
       Box" results that are untouchable by any other workstation
       solution. Our Motif based interface with complete graphical page
       layout allows for user friendly control, and includes standard
       features like range/gradation spline control, hue compensation
       matrix, multiple image layout, sharpen/smooth, custom color
       table generation, scale, crop, step/repeat and much more. Full
       print spooling support as well as scriptable command line mode.
       All standard file formats are supported, plus optional
       PostScript support with ColorByte's PSrip. "On the Fly" printing
       technology means blazingly fast prints with small RAM/Swap space
       requirements, and each driver is fully networkable. Currently
       supporting: Fuji Pictrography 3000, IRIS Inkjet 3024, 3047,
       4012, Realist (includes SWOP colorspace option), Kodak XL7700,
       XLT7720, XLS8300, XLS8600, Mitsubishi s3600, s6600, Metrum
       Fotoprint 1000, NOVAJET III (Coming Soon!) **Available on SGI
       Workstations running Irix 5.x.**

    7. UNIXimager XL; http://www.oceana.com

       UNIXimager XL is a UNIX® based application for raster file
       printing on SCSI attached Kodak XL/XLT digital printers.
       UNIXimager XL offers a Motif based printer control panel for
       point-and-click control of all printer features including:
       scaling and positioning, image enhancement, color adjustment,
       annotation and reprint. Users have the ability to print their
       files using the graphical user interface (GUI) or from the
       command line. File formats supported include: TIFF, Targa, Sun
       Raster, SGI Image, JFIF, PBMPLUS, Alias Pix, Wavefront RLA, Utah
       RLE. 

       Supported printers include: XL 7700, XLT 7720. 

    8. PostShop(r) (VIVIDATA); http://www.vividata.com/postshop.html

       PostShop seamlessly integrates with UNIX applications to enable
       PostScript printing to non-PostScript printers, while also
       allowing drag and drop image printing to all supported printers.
       Image rasterizing is done via PhotoRIP TM, a software PostScript
       RIP, using the host CPU's processing power instead of the
       embedded printer controller or a separate, hardware Raster Image
       Processor (RIP) for non-PostScript printers. 

Some parts © 2009 Advameg, Inc.