Instruction/ maintenance manual of the product 721P87491 Xerox
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Xero x Do cuP ri nt Net w o rk Pri nte r Se r ies Guide to Usi ng P a g e Description Languag es Version 7.1 August 2000 721P8749 1.
Xerox Corporation 701 S. Aviation Boulevard El Segu ndo, CA 90245 ©1997, 1998, 1999 , 2000 by X erox Corporation. All rights reserved. Copyright protection claimed includes all forms and matters of c.
XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES iii La ser safe ty ! Warning: Adjustmen ts, use of cont rols, or performanc e of procedures other than those specified herein m ay res ult in hazardous light exposure. The Xerox DocuPrint printers are c ertified to c omply with th e performance standards of the U.
iv XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES ! Warning: I mproper c onnecti on of the equ ipment grou nding condu ctor may result in risk of el ectrical shock. • Nev er use a ground adapter plug to connect equipment to an electr ical out let that la c ks a ground c onnec ti on ter minal.
XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES v T abl e of conte nts Laser safety iii Ozone informati on iii Opera tion s af ety iii Intr od ucti on ix About t his guide ix Contents ix Conventions ix Related publications xi Related information xi PostScript pub lications xi HP PCL 5 publications xii VIP P pu b licat ion xii 1.
TABLE O F CONT ENTS vi XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES 2. Po stSc ript 2-1 Implemen tation-dependen t operations 2-1 Floating-point arithmetic and math operators 2-1 C.
TABL E OF CONTENT S XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES vii Curved shapes 2-20 Images 2 -20 Image qua lity 2-2 1 Rendering of color and gray values: transfer function 2 -22 .
TABLE O F CONT ENTS viii XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES.
XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES ix Intr oduction The X erox D ocuPrint Network Printing Series Guide to Us ing PDL describes how the PostScript, HP PCL 5, and VIPP (f ormerly XGF) page description languages (PDLs) are implemented on the Xerox DocuPr in t NPS pr int ers.
INTRO DU CTIO N x XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES • Bold — W ithin procedures, text and numbers that y ou enter are shown in b old (f or e xample, enter privi lege operato r ).
INTRODUCTION XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES xi Relate d public ation s The Xerox DocuP rint Network Pri nter Se ries incl udes the foll owi ng document s: Decompos itio.
INTRO DU CTIO N xii XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES • P ostScript Language Reference Manual , second edition, Addison -Wesle y , J anuar y 1991, Adobe Syste ms , Incor porated. (This documen t defines both P ostSc ript Le vel 1 and Le v el 2.
XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 1-1 1. 1 PCL 5 The DocuPrint NPS system supports the following functions for source doc uments: • On monochrom e systems, printing of PCL 5e masters containing PCL commands, HP-GL/2 com mands, f o nts , and data to be printed.
PCL 5 1-2 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES Note: For PCL jobs, DocuPr int NPS supports 300 and 600 dpi printing only. To obtain the best image quality on the DocuPrint NPS, choose the correct printer setup attributes when generating a doc ument on your personal c omputer.
PC L 5 XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 1-3 density settings and line placeme nt on the page, Xerox cannot guara ntee the quality of these single-pixel lines. Specific question s regarding s ingle-pixel line p rint ing f or your application should b e di rected to y our X erox service engineer.
PCL 5 1-4 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES Sy stem chapter on “ MIC R Pr int ing ” f or more information. Refer also to t he Generi c MICR Fundament als Guide . Note: Fonts installed using the “ Install PCL Fonts from Floppy ” command cannot be selected by font ID.
PC L 5 XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 1-5 PCL c om man d su pp ort The following se ctions explain the di fferences in processi ng and how DocuPrint NP S inte rprets various P CL comman ds. PJL c omma n ds DocuPrint NP S d oes no t support P rinter Job Language (PJL) command s em bedded wi thin a job.
PCL 5 1-6 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES In addition, if the st apling attribute i s set for the document on a DocuPrint equipped with a Hi gh-Ca pacity Sti tcher/Sta.
PC L 5 XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 1-7 As with sim plex, if the st apling attribute is set for the document on a DocuPrint equipped with a Hi gh-Ca pacity Sti tcher/.
PCL 5 1-8 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES *DocuPrint implem ents the Paper Source command by correspondin g the number spe cified i n the command to the correlating media in the media list of the Media doc ument attribute.
PC L 5 XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 1-9 • Use DocuPrin t NPS f aci lities for offsetting at the print job le v el. Do not rely on the use of the Job Separation comm and at t he end of ev ery PCL jo b . Although this is the HP recommendat ion, a consistent offsetting of print jobs cannot be guarantee d.
PCL 5 1-10 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES These numbers ma p directly t o the media list set for the Media document attribute on the virtual pri nter or in t he job s.
PC L 5 XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 1-11 If a given page has only a Page Size speci fi cation, it is used to identify the required medium in the media list. If no exact match is available, the medium close st in s ize is used.
PCL 5 1-12 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES printers even though t he PCL interpreter is emul ating a simplex PC L printer. There are no switc hes that cont rol how the im age is shifted, because the DocuPrin t s equenc er does not perform image shifting on a page-by-page basis, but only on a job-by-job basis.
PC L 5 XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 1-13 User-defined dither patterns are i gnored. T he def ault highlight color dither pattern is use d instead .
PCL 5 1-14 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES Dr iver re com mend atio ns for P CL 5c This section identifies drivers that are rec ommend ed for the Windows 95 and the Windows NT 4.0 environments. For Windows 9 5, the HP Color LaserJ et 5/5M PCL 5 C driver, version vF2.
XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 2-1 2. 2 Po s t S c r i p t This chapter provides an overview of st andard PostScript operations and guid elines fo r ensuring c onsistent p rinter out put. Imp le me nt at ion- de pe nd en t op er ati ons The following operations are implement ation-dependent .
POSTS CRIPT 2-2 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES Font s DocuPrint NP S con tains 51 PostScript T ype 1 font s listed in the following tabl e. The se fonts are s tandard Ty pe 1 f onts lice nsed through Adobe S ystems, Inc.
POST SCRIPT XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 2-3 see the Generic M ICR Fundam entals Gui de and the “ MI CR printing ”” chapter i n the Guide t o Conf iguring an d Manag ing the Sys tem . DocuPrint NP S is capable of processing any legal Type 0, T ype 1, o r Type 3 font.
POSTS CRIPT 2-4 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES T ype 1 f o nt s Type 1 fonts are base fonts wi th character shapes def ined by using specially encoded Post Script procedures.
POST SCRIPT XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 2-5 • F ont characters are cached so that multiple uses of a visual eleme nt in a doc ument are rend ered qui ck er if the eleme nts are taken from a f ont than if they are read from suppleme ntar y files.
POSTS CRIPT 2-6 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES P ost Scr i pt wit h em bedd ed PJL c o mman ds PostScript files created for some Hewlett-Packard printers and other compatible prin ters include PJL comm ands that specify the use of a PostScript in terpreter.
POST SCRIPT XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 2-7 master s usi ng cexec . Usag e of cexec is typically hidden by the encr yption of e exec . LaserW riter defines other entries in the System Dictionary that are specific to its de vice characteristics, such as ext ra operators that dea l w ith the hard d isk.
POSTS CRIPT 2-8 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES Server Dictionary e ntries th at contain d efined val ues an d routines to mimic the LaserWriter, but are not used by DocuPrint, include: No other Server Dictionary operators defined in the LaserWriter are implemented in DocuP rint 1.
POST SCRIPT XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 2-9 Print er Diction ary Printer Dictionary ($prin terdict) entries that are implem ented inc lude: The following $printerdict print c ommand operat ors are defined with null functi onality.
POSTS CRIPT 2-10 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES Exa mpl es of no nst an dard defi nit ions The f ollowing two dictionaries an d their operators a re exam ples of nonstandard (product -specific) definitions.
POST SCRIPT XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 2-11 image output on a 300 dpi pri nter. The 600 dpi im age appears larger and in a different position on the page. F i gu r e 2- 1. 300 and 600 dpi imag e outp ut In Figure 2-2, the 600 dpi hal ftone is distorted and only a portion of the i mage ap pears.
POSTS CRIPT 2-12 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES To preserve image quality when printing on 300 dpi printers, regenerate the bitmaps at 300 dpi. The 600 dpi printers can accept jobs with res ources in either 300 o r 600 d pi.
POST SCRIPT XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 2-13 • Image d ata at o utput device resolution — P ostScript i ma ge data that has a resolution matchin g the output de vice is typically transferred directl y to the frame buffer with no modification.
POSTS CRIPT 2-14 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES Co ntr ol- D as bi nary da ta and en d- of -job The fact t hat control-D can be a valid PostScript end-of-file (EOF) d.
POST SCRIPT XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 2-15 Sol uti o n to co ntr ol-Z an d c ont r o l -D pr obl em s The recomm ended solution for the problems induced by control-D and control-Z is to include the following PostScript definitions.
POSTS CRIPT 2-16 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES • Illegal characte r s adjacent to legal characters . If there is no white space character (as defined in t he PostS.
POST SCRIPT XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 2-17 Doc uPrin t NP S imple men ta tion of P os tScr ipt Level 2 DocuPrint NPS implem ents t he PostScrip t Level 2 operators ; it conforms to the PostScript Language as define d in the PostScript Language re ference manuals.
POSTS CRIPT 2-18 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES Pr inte r Con tr oller ope rati on s The DocuPrint NPS Printer Controll er operates as foll ows: • P ostScript stdout mess ages are printed on the “ JOB M ESS AG ES AN D ER ROR S ” page.
POST SCRIPT XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 2-19 F i gu r e 2- 4. St roke function The top illustration above s hows four col umns of three pixels on the printing device. Th e dashed lines intersect at the cent er points of the device pixels or dots.
POSTS CRIPT 2-20 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES Zero-width lines (str okes) Zero-width lines are li nes that ha ve a line wi dth set to zero by the PostScript mast er. T hese lines may not ima ge. The best method is to specify t he sizes of the hairline you wan t, such as .
POST SCRIPT XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 2-21 — The resolution of the source ima ge (sample i mage ) i s lower than the de v ice space, and the scaling of source-image-to- device space is a n inte ger multiple and rotation i s in multiples of 90 degrees.
POSTS CRIPT 2-22 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES Re nde rin g of col o r an d gr ay v a lue s: tr an sf e r f unct io n PostScript devices approximat e source color values by a sampling and halftoning techni que. These values c an be modified by changi ng the ou tput transfer f unction.
POST SCRIPT XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 2-23 Post Sc ript pri nt er de sc ript i on (PPD ) fi les PostScript printer description files (PPD files) are r eadabl e text fil es that provide information about the special features of your printing device to the application program running on your host system .
POSTS CRIPT 2-24 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES File o perat or s and stand ar d de v ices When “ %stdin ” is the f ilename for the file operator, DocuPrint NPS does not creat e a new f ile object.
POST SCRIPT XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 2-25 status and bytesavai l return d if ferent resul ts when output is compared amo ng different i mplement ations of PostScript, d ue to differences in the implem entation of file I/O.
POSTS CRIPT 2-26 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES F i gu r e 2- 7. T y pi cal desk to p pr i nt er d e vi ce c o ordi nate Pos tScript s tora ge object size limits The .
POST SCRIPT XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 2-27 Cre a ting th e ne ce s sary P o stSc ri pt CCITT Gr oup 3 a nd 4 You can embed an image that is compressed to CCITT group 4 specifications in the PostScript.
POSTS CRIPT 2-28 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES For any image, there are eight such sequences (four scan origin possibilities, with either a row or a column order choice f or each).
POST SCRIPT XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 2-29 F i gu r e 2- 9. I ma ge orien tation m ismatch B The sc an order of an im age relat ive to the content of the image is not important. It is i mportant that the scan order of the image in t he desired orientation is relative to t he scan order of the page.
POSTS CRIPT 2-30 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES F i gu r e 2- 10. Image pixel seque nce examp le Regardless of which sc an order is chosen, the scan proceed s in one .
POST SCRIPT XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 2-31 Considerations The sc an order of an im age relat ive to the content of the image is not important. It is i mportant that the scan order of the image in t he desired orientation is relative to t he scan order of the page.
POSTS CRIPT 2-32 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES the image relative to the PostScript default image and user coordinate system s. Scan resolu tio n and scali ng Just as rotation of an i mage is often required to produce correct output, scaling is also often required.
POST SCRIPT XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 2-33 F i gu r e 2- 12. PostScri pt with embed ded image: normal scan orde r The fo llo wing ex am ple illu str ate s t he req uirem en ts for em bed din g and printing an image in an enhanced scan.
POSTS CRIPT 2-34 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES F i gu r e 2- 13. PostScri pt wi th em bedded imag e: re ordered d ata for optimum scan examp le %! PS-Adobe-3.0 % G4.example.ps % Example using embedded CCITT group 4 (G4) data.
POST SCRIPT XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 2-35 F i gu r e 2- 14. Actual PostScript print %!PS-Adobe-3.0 %%Emulation: ccitt %%LanguageLevel: 2 %%Requirements: duplex (o.
POSTS CRIPT 2-36 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES.
XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 3-1 3. 3 VIPP Variable Data Intel ligent PostScript PrintWare, or VIPP, (f ormerly XGF) provides a facility for the easy integration of data, forms, and images from host applications to t he PostScript environm ent.
VIPP 3-2 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES Func t io nali ty In native m ode, an a pplication program uses the follow ing operators to control how data i s placed on a p.
VIP P XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES 3-3 VIP P lin e mo de ext en sion (XGF Nu b) The VIPP line mode extension (formerly called XGFNu b) i s a DocuPrint NPS (Version 1.4 and higher) extension that enables users to execute VIPP com mands at the start of any VIPP docum ent.
VIPP 3-4 XEROX DOCUPRI NT NPS GUIDE TO USI NG PAGE DES CRIPTION LANGUAGES.
XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES INDEX-1 Inde x Symb ols #copies operator, 2-7 %s td i n, 2 -2 4 – 2- 25 .pfb extension, 2-5 A additional metrics entry, 2-3 Adobe Type .
INDEX INDEX-2 XEROX DOCUPRI NT NPS GUI DE TO USI NG PAGE DES CRIPTION LANGUAGES E EBCDIC, 3-1 eexec o perator, 2-6 embeddin g imag es, 2-27, 2-33 engine write-black, 2-12 – 2- 13, 2 - 2 1 write-whit.
XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES INDEX-3 INDEX limit path, 2-25 storage ob ject size, 2-26 virtual memory, 2-25 limitcheck error, 2-25 line mode, 3 -1, 3-2 line mode exte.
INDEX INDEX-4 XEROX DOCUPRI NT NPS GUI DE TO USI NG PAGE DES CRIPTION LANGUAGES PPD files, 2-23 specifications, 2-23 pre-enhance ment, 2-12 print engine write-black, 2-12 – 2- 13, 2 - 2 1 write-whit.
XEROX DOCUPRINT NPS GUIDE TO USI NG PAGE DESCRIPTION LANGUAGES INDEX-5 INDEX X x a x i s , 2- 28 Xerox G eneric Form at, see V IPP XGF , s ee VIP P XGFNu b.
INDEX INDEX-6 XEROX DOCUPRI NT NPS GUI DE TO USI NG PAGE DES CRIPTION LANGUAGES.
An important point after buying a device Xerox 721P87491 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Xerox 721P87491 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Xerox 721P87491 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Xerox 721P87491 you will learn all the available features of the product, as well as information on its operation. The information that you get Xerox 721P87491 will certainly help you make a decision on the purchase.
If you already are a holder of Xerox 721P87491, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Xerox 721P87491.
However, one of the most important roles played by the user manual is to help in solving problems with Xerox 721P87491. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Xerox 721P87491 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
