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SGI impressario Frequently Asked Questions (FAQ)

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Archive-name: sgi/faq/impressario
Last-modified: Wed Oct 6 1:00:04 CDT 1999
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    SGI impressario Frequently Asked Questions (FAQ)

This is one of the Silicon Graphics FAQ series, which consists of:

    SGI admin FAQ - IRIX system administration
    SGI apps FAQ - Applications and miscellaneous programming
    SGI audio FAQ - Audio applications and programming
    SGI diffs FAQ - Changes to the other FAQs since the last posting
    SGI graphics FAQ - Graphics and user environment customization
    SGI hardware FAQ - Hardware
    SGI impressario FAQ - IRIS Impressario
    SGI inventor FAQ - IRIS Inventor
    SGI misc FAQ - Introduction & miscellaneous information
    SGI movie FAQ - Movies
    SGI performer FAQ - IRIS Performer
    SGI pointer FAQ - Pointer to the other FAQs
    SGI security FAQ - IRIX security

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Topics covered in this FAQ:
---------------------------
   -1- What is Impressario?
   -2- What printing solutions are available for IRIX?
   -3- What version of Impressario runs on what OS?
   -4- What should I know before updating to Impressario version 1.2?
   -5- What should I know before upgrading to IRIX 6.2?
   -6- Why are my printer icons now shell script icons?  Why do I no
       longer see printstatus and printpanel?
   -7- Do I need Impressario to print PostScript documents?
   -8- What printers are supported under Impressario?
   -9- What scanners are supported under Impressario?
  -10- What types of image files can Impressario print?
  -11- Can I write my own Impressario printer/scanner device plug-in?
  -12- What happened to the client software option in Impressario 1.2?
  -13- What is the mkbsdpr script (included with Impressario) used for?
  -14- What is the impr_desktop product?
  -15- Why do I need Display PostScript?
  -16- Can I use the serial port for HP printers with Impressario?
  -17- Is the Ikon 10088 parallel interface controller supported by
       Impressario?
  -18- Does Impressario support the HP JetDirect card?
  -19- Why won't my HP PaintJet work with Impressario?


Subject: -1- What is Impressario? Date: 12 Jun 1997 00:00:01 EST Impressario is a visual printing and scanning environment. Drivers for many popular printers and scanners are provided. The current WWW pages for Impressario are at: http://www.sgi.com/Technology/Impressario The web pages are extremely out of date... PRINTING Impressario's printer drivers allow the user to control resolution, paper size, double-sided printing, text orientation, etc. Impressario allows you to print many types of files (text and graphics). See the question "What types of image files can Impressario print?" for details. Non-PostScript printer drivers utilize an Adobe(r) PostScript(tm) Raster Image Processor (RIP) to print image and PostScript files. For Impressario 2.0 and higher, this RIP is an extra-cost item. Impressario gives you full printer status in a network-transparent manner, so you can find out locally or from a remote system when the printer is out of toner, out of paper, has a jam, isn't turned on, etc. SCANNING Impressario also supports scanners. The Graphical Scan tool allows you to scan data from a scanner, file, local or remote workstation display and send the data to a printer, file, or workstation display. The Scanner installation tool provides a simple interface for installing and configuring scanners on your workstation. DEVELOPER'S KIT The Impressario Developer's Kit allows application and device plug-in developers to create software that fully supports printing and scanning in a manner that is consistent with the Impressario architecture. This software is included standard with Impressario 2.0 and higher. FONTS The Impressario fonts subsystem contains 22 Type 1 PostScript fonts, which complement the base 13 fonts provided with Display PostScript. These additional fonts provide you with a complete set of industry standard fonts used in most PostScript printers. In addition, these fonts can be used with the Display PostScript system to create true WYSIWYG applications. IMPRESSARIO 2.X Impressario 2.0 and higher is included standard with every SGI workstation and server. In addition to supporting more PostScript printers, the 2.x releases provide a Kodak Color Management System interface that allows you to calibrate images you scan and print. Note that the PostScript RIP provided with Impressario 2.x is an extra-cost item not covered by the standard IRIX software license. The PostScript RIP software is required for printing to non-PostScript printers.
Subject: -2- What printing solutions are available for IRIX? Date: 15 Oct 1998 00:00:00 EST 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.
Subject: -3- What version of Impressario runs on what OS? Date: 15 Oct 1998 00:00:00 EST IRIX Impressario Version --------- -------------------- 3.3.* Not available 4.0.* 1.1 5.0-5.1.* 1.1 5.2-5.3 1.2 6.0-6.1 1.2 6.2 2.0, 2.1, 2.2.2 6.3 2.1.1, 2.2.3 6.4 2.1.1, 2.2.4 6.5 2.2.5 Impressario 1.0 users should update to version 1.1 or 1.2. Impressario 2.0 users should update to version 2.1. If you are under support, your upgrade is free.
Subject: -4- What should I know before updating to Impressario version 1.2? Date: 18 Aug 1994 00:00:01 EST 1. If you upgrade a system running IRIX 4.0.* or IRIX 5.1.* to IRIX 5.2 and you already have Impressario 1.1 installed then Impressario 1.1 should continue to work under IRIX 5.2. However, you should update to Impressario 1.2 as soon as possible after any update to IRIX 5.2 2. Once you upgrade to IRIX 5.2 do not remove Impressario 1.1. If you do, you should re-install the following subsystems from the IRIX 5.2 distribution CD (for convenience these subsystems are also found on the Impressario 1.2 CD -- see the next item): print.man.desktop print.man.relnotes print.sw.desktop 3. When you install Impressario 1.2 you will find that it has the following subsystems on the Impressario 1.2 CD: print.man.desktop print.man.relnotes print.sw.desktop As a minimum, install the default print subsystems (do not mark all the print product as 'keep' from inst). The reason this is done is that the inst procedure removes all files associated with Impressario 1.1. Some of the Impressario 1.1 files now reside in the print product and they will be removed when Impressario 1.2 is installed. So, the print product must be re-installed when Impressario 1.2 is installed. For convenience, the print product is supplied with Impressario 1.2 and it will automatically install the correct print product (assuming you do not change the set of software to be installed using the inst utility). Note that the print product shipped with IRIX 5.2 is version 1.2. The print product found on the Impressario 1.2 CD is version 1.2.1. They are both the same. The higher version number of the print product on the Impressario 1.2 CD ensures that they are installed by the inst utility when you install Impressario 1.2. 4. Do not load Impressario 1.1 (client or server software) onto an IRIX 5.2 system. There are OS patches in Impressario 1.1 which are not necessary for IRIX 5.2. If Impressario 1.1 is installed on top of IRIX 5.2, you should be aware that the following files are replaced, and their corresponding IRIX 5.2 subsystems must be reinstalled. File name Subsystem usr/lib/lpsched eoe2.sw.lp usr/lib/lputil eoe2.sw.lp usr/lib/print/lptops eoe2.sw.lp usr/bin/lp eoe2.sw.lp usr/sbin/mkcentpr eoe2.sw.lp usr/spool/lp/model/netface eoe2.sw.lp usr/lib/filetype/vadmin/printers.ftr desktop_eoe.sw.FileTypingRules usr/lib/filetype/vadmin/vadmin.ftr desktop_eoe.sw.FileTypingRules usr/etc/rshd eoe2.sw.tcp IMPORTANT: If you install Impressario 1.1 onto an IRIX 5.2 system you absolutely must re-install the above subsystems -- installing Impressario 1.2 (the correct version for IRIX 5.2) will not undo or replace the OS patches that Impressario 1.1 installed. Note: It is not possible to install a single file from a subsystem -- you have to install the entire subsystem.
Subject: -5- What should I know before upgrading to IRIX 6.2? Date: 12 Jun 1997 00:00:01 EST If you are currently using Impressario 1.x, you will need to upgrade to Impressario 2.x when you upgrade to IRIX 6.2. This is because the PostScript RIP provided with Impressario 1.x is a COFF executable, and COFF executables are not supported by IRIX 6.2. Impressario 2.0 and higher is included standard with IRIX 6.2 and higher. In addition to supporting more PostScript printers, the 2.x releases provide a Kodak Color Management System interface that allows you to calibrate images you scan and print. Note that the PostScript RIP provided with Impressario 2.x is an extra-cost item not covered by the standard IRIX software license. The PostScript RIP software is required for printing to non-PostScript printers. If you currently have a support contract with SGI and already have Impressario 1.x you can get the RIP license "free" from SGI.
Subject: -6- Why are my printer icons now shell script icons? Why do I no longer see printstatus and printpanel? Date: 18 Aug 1994 00:00:01 EST You probably updated to IRIX 5.2 and then removed Impressario 1.1. If you did this, re-install the "print" product from the IRIX 5.2 distribution CD. The sub-systems are: print.man.desktop print.man.relnotes print.sw.desktop See the related question "What should I know before updating to Impressario version 1.2?".
Subject: -7- Do I need Impressario to print PostScript documents? Date: 12 Jun 1997 00:00:01 EST IRIX includes a "Generic PostScript" device plug-in. This device plug-in will convert ISO text files and RGB image files to monochrome PostScript and send the PostScript file to your printer (which must be able to process PostScript files). You can install the Generic PostScript Device Plug-In using the Printer Manager. Starting with IRIX 6.2, all Impressario PostScript drivers are provided free. If you have a non-PostScript printer, you need to buy Impressario or one of the third party software packages to print PostScript files to your printer; or you may wish to investigate Ghostscript at <http://www.cs.wisc.edu/~ghost/index.html> as a possible free solution. See the related question "What printing packages are available for IRIX?".
Subject: -8- What printers are supported under Impressario? Date: 12 Jun 1997 17:15:00 EST The following is a list of printers supported by the various versions of Impressario. If you don't see your printer listed here, see "What printing solutions are available for IRIX?" above. IMPRESSARIO 1.1 (from the Impressario release notes): Apple LaserWriter Plus, II, IINT, IINTX, IIf, and IIg [1, 2] Hewlett-Packard DeskJet 500C, 550C, and PaintJet XL300 Hewlett-Packard LaserJet IIP, IIP+, III, IIIP, and 4 [3, 4] IMPRESSARIO 1.2: Apple LaserWriter Plus, II, IINT, IINTX, IIf, and IIg [1, 2] Hewlett-Packard DeskJet 500C, 550C, and PaintJet XL300 Hewlett-Packard DesignJet 650C [3] Hewlett-Packard LaserJet IIP, IIP+, III, IIIP, 4, 4P and 4L [3, 4] IMPRESSARIO 2.0: Apple LaserWriter Plus, II, IINT, IINTX, IIf, and IIg [1, 2] Hewlett-Packard DeskJet 500C, 550C, 560C, 600C, 660C, 850C, 855C Hewlett-Packard DeskJet 1200C, 1600C Hewlett-Packard PaintJet XL300 Hewlett-Packard DesignJet 650C, 750C. Hewlett-Packard LaserJet IIP, IIP+, III, IIIP, 4, 4P, 4L, 5L [3, 4] Hewlett-Packard LaserJet 4Plus, 4V, 4Si, 5P, 5Si [3, 5] EPSON Color Stylus, Color Stylus Pro, Color Stylus Pro XL [3] Lexmark Optra L, Lx, Lxi, R, Rx [5] Genicom 7910, 7912 and 7916 [5] IMPRESSARIO 2.1, 2.1.1: Apple LaserWriter Plus, II, IINT, IINTX, IIf, and IIg [1, 2] Hewlett-Packard DeskJet 500C, 550C, 560C, 600C, 660C, 850C, 855C Hewlett-Packard DeskJet 1200C, 1600C Hewlett-Packard PaintJet XL300 Hewlett-Packard DesignJet 650C, 750C. Hewlett-Packard LaserJet IIP, IIP+, III, IIIP, 4, 4P, 4L, 5L [3, 4] Hewlett-Packard LaserJet 4Plus, 4V, 4Si, 5P, 5Si [3, 5] EPSON Color Stylus, Color Stylus Pro, Color Stylus Pro XL [3] Lexmark Optra L, Lx, Lxi, R, Rx [5] Genicom 7910, 7912 and 7916 [5] NOTES 1 - All Apple LaserWriter printers must be connected to system using a serial port. All Hewlett-Packard printers must be connected to the system using a builtin parallel port. 2 - Apple LaserWriter IIf printers with less than 4 Mbytes of memory are not supported. 3 - HP LaserJet printers require a minimum of 1.5MB for 300 DPI printing and 4MB for 600 DPI printing. 4 - Parallel only. 5 - Parallel or HP JetDirect. THIRD PARTY DRIVERS THAT USE IMPRESSARIO 1. Genicom - http://www.genicom.com Drivers for Genicom printers. 2. GW Hannaway & Associates - http://www.gwha.com Drivers for Kodak XL7700, XLT7720, XLS8300, XLS8600, DS8650, Fujix Pictrography 3000, Mitsubishi S3600, S6600 3. Torque Systems - http://www.torque.com Drivers for Calcomp 68000GA, TechJET plotters, HP DesignJet 650C, 750C, ENCAD NovaJet II, III, Pro, RasterGraphics 5400, Xerox ColorGrafX 8900, IRIS 3024, 3047, 4012, Canon CLC copies.
Subject: -9- What scanners are supported under Impressario? Date: 12 Jun 1997 00:00:01 EST IMPRESSARIO 1.1 (from the Impressario release notes): Hewlett-Packard ScanJet IIc Ricoh FS1 MicroTek ScanMaker 600 ZS Sharp JX 320 Epson GT 6000 [1] IMPRESSARIO 1.2: Hewlett-Packard ScanJet IIc and IIcx Ricoh FS1 MicroTek ScanMaker 600 ZS Sharp JX 320 Epson GT 6000 [1] IMPRESSARIO 2.0: Hewlett-Packard ScanJet IIc, IIcx, 3C, and 4C Ricoh FS1 and FS2 Sharp JX 320, JX 325, JX 330, JX 600, and JX 610 IMPRESSARIO 2.1, 2.1.1: Hewlett-Packard ScanJet IIc, IIcx, 3C, and 4C Ricoh FS1 and FS2 Sharp JX 320, JX 325, JX 330, JX 600, and JX 610 NOTES: 1 - The Epson GT-6000 cannot scan more than 4096 dots per scan line. Thus, at higher resolutions, it might not be possible to scan all of the scannable area. THIRD PARTY DRIVERS THAT USE IMPRESSARIO 1. Easy Software Products - http://www.easysw.com Driver for Canon CJ-10/CLC-10 with SS-IPU.
Subject: -10- What types of image files can Impressario print? Date: 12 Jun 1997 00:00:01 EST All versions of Impressario support IRIS RGB image files, RGB and RGBA, color and grayscale, compressed and uncompressed. Starting with Impressario 1.2, direct printing of JPEG/JFIF, PhotoCD, TIFF 6.0, GIF 87a and 89a, and FIT images are supported. In addition both ASCII and binary PPM, PGM and PBM images can be directly printed. Finally, Impressario 1.2 adds support for IRIS RGB files with 16 bits per channel, in all formats. Starting with Impressario 2.1, direct printing of Portable Network Graphics (PNG) files is supported (this is part of the ImageVision 3.x software). More file formats can be added to Impressario quickly and easily, without knowing anything about PostScript or printer device plug-ins. See the Impressario Developer's Guide or the Indigo Magic Integration Guide for more details. Every new file conversion filter is automatically available to all printers, so that file conversion filters need only be written once for all uses.
Subject: -11- Can I write my own Impressario printer/scanner device plug-in? Date: 12 Jun 1997 00:00:01 EST Yes. You will need the Impressario Developer's Kit. This software is an optional product prior to Impressario 2.0, and is included standard with Impressario 2.0 and higher. From the Impressario 1.2 release notes: The Impressario Developer's Kit allows application and device plug-in developers to create software that fully supports printing and scanning in a manner that is consistent with the Impressario architecture. A full developer's template for both scanner and printer device plug-ins along with a complete developer's manual are included. Starting in Impressario 1.2, the manual is supplied in both paper and online Insight format.
Subject: -12- What happened to the client software option in Impressario 1.2? Date: 12 Jun 1997 00:00:01 EST Impressario versions 1.0 and 1.1 were sold in two packages: client and server. The server software contained filters and device plug-ins for sending print jobs to a printer connected directly to a host workstation. The server software was installed on the system that had the printer physically attached to it. The Client software provided a graphical interfaces to the printing and scanning software. The client software was installed on systems that would access the Impressario print server via a network connection. Starting with Impressario version 1.2 and IRIX 5.2, the client product has been obsoleted. The graphical interfaces to printing now ship as part of IRIX 5.2 and later, so any SGI system can now be an Impressario client. If your clients are all running IRIX 5.2 or later, you need only install Impressario Server on the system that has the printer or scanner physically attached to it. Prior to IRIX 6.2, scanner support, imprint, and psroff were not bundled; they were still part of Impressario Server. IRIX 6.2 and higher includes both the client and server software as a standard part of the operating system (the PostScript RIP required for non-PostScript printers is still licensed separately).
Subject: -13- What is the mkbsdpr script (included with Impressario) used for? Date: 18 Aug 1994 00:00:01 EST Background: There are two common print spoolers in use with Unix systems: The lp spooler. The lpr spooler. SGI uses the lp spooler. If you wish to use a printer on a remote system that uses the lpr spooler then you need a way to submit print jobs to it. SGI does supply the lpr spooler software (it is in the subsystem eoe2.sw.lpr and is not loaded by default). If you wish to use an lpr printer (which would be on another system on your network) then you should install the lpr spooler subsystem and configure it (see the lpr(1) and printcap(4) man pages for details). At this point you could print to the lpr printer using the lpr(1) command. However, you might also want to print from the Indigo Magic environment or from an application that only prints to the lp spooler. The way to do this is set up an lp printer queue that forwards all of its print requests to the lpr spooler (which is what mkbsdpr does): From the mkbsdpr(1M) man page: mkbsdpr registers a BSD spooling system printer with the System V spooling system. This provides the ability to submit a print job via System V and have that job printed on a BSD based printer. mkbsdpr creates a System V printer interface program to communicate with a BSD print spooler. This interface program will normally keep a log of its activities in the file /var/spool/lp/log. The -l option causes the interface program to keep its log in /var/spool/lp/etc/log/lp_printer-log instead. The -v option causes the interface program to keep a more verbose log. mkbsdpr only provides connectivity from the System V print spooler to BSD print spooler. The program cannot be used for installing or registering a local BSD printer.
Subject: -14- What is the impr_desktop product? Date: 18 Aug 1994 00:00:01 EST This is the Impressario printer client software that was shipped with IRIX 5.1.* systems. Starting with IRIX 5.2 it has been renamed to "print". The new product subsystems are: print.man.desktop print.man.relnotes print.sw.desktop Note that with Impressario version 1.2 a version of the "print" software is included on the Impressario CD. See the related question "What should I know before updating to Impressario version 1.2?" for details.
Subject: -15- Why do I need Display PostScript? Date: 21 Mar 1994 00:00:01 EST Impressario requires the Display PostScript software. All SGI systems that were delivered from the factory with IRIX 4.0.* or higher include Display PostScript. Systems delivered with an IRIX release earlier then 4.0.* did not include Display PostScript. In addition, the 4.0.* update to these systems did not include Display PostScript (requiring 4.0.* upgrade users to purchase Display PostScript). This has changed: all IRIX 5.2 updates will include Display PostScript.
Subject: -16- Can I use the serial port for HP printers with Impressario? Date: 12 Jun 1997 00:00:01 EST No. Only builtin parallel ports (and in some cases, an HP JetDirect interface) can be used. Note that some older SGI systems do not have a builtin parallel port. The hinv(1M) command can be used to see if the system has a parallel port. Also, the 8-pin "serial" port on newer HP printers is *not* compatible with any SGI workstation or server. The port is used for LocalTalk connections to Macintosh computers.
Subject: -17- Is the Ikon 10088 parallel interface controller supported by Impressario? Date: 21 Mar 1994 00:00:01 EST No. The Ikon board is not supported. Note: The Ikon 10088 parallel interface controller is an optional VME board that provides a parallel port for older systems that do not have a built-in parallel port.
Subject: -18- Does Impressario support the HP JetDirect card? Date: 12 Jun 1997 00:00:01 EST If you're running Impressario 2.0 or later, the answer is yes. Versions prior to 2.0 do not support the JetDirect card.
Subject: -19- Why won't my HP PaintJet work with Impressario? Date: 21 Mar 1994 00:00:01 EST Impressario supports the HP PaintJet XL300. The PaintJet (a different printer) is not supported. ------------------------------ End of sgi/faq/impressario Digest ****************************** -- The SGI FAQ group <sgi-faq@viz.tamu.edu> http://www-viz.tamu.edu/~sgi-faq/ Finger us for info on the SGI FAQs, or look in ftp://viz.tamu.edu/pub/sgi/.

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