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@ The LIST data type feature employs a special text-to-PostScript t translator (see Chapter 9). It translates 8-bit ASCII (ISO 8859-1) E text to a convenient printable form, numbering the lines in the file D and printing gray bars behind alternating groups of lines. The LIST C translator is not an ANSI translator. It does not translate escape D sequences, such as those defined by ANSI PPL3, HP-PCL, or any other D printer protocol. You should continue to use the ANSI data type for H printing jobs that include and require translation of DEC PPL3 data and control sequences. V 5.8 Printing the Euro Symbol
F The ISO Latin-9 (ISO 8859-15) character set is included with the DCPS = ANSI translator. This character set includes the Euro symbol.
B One way to print the Euro symbol is to include the following ANSI # escape sequences in your ANSI file:
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" L <ESC>.b selects ISO Latin-9 character set = <ESC>n$ prints Euro symbol |
3 DCPS software replaces DEC Image Print-PLUS Client F Services* and allows you to print DDIF bitonal image files H on the PrintServer 17, turbo PrintServer 20 and PrintServer 32 printers using the Image interpreter.
D The Image interpreter is not used if PostScript Level 2 is present. |
F If your print job includes one of the following parameters, the Image . interpreter is not used to print the document:
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" ! /PARAMETERS=LAYUP_DEFINITION /PARAMETERS=NUMBER_UP |
F Instead, the file is translated to PostScript for printing to provide - the feature specified by the parameter value.
| N U * The DECprint Supervisor product, versions F 1.1 and later, is incompatible with all versions of DEC Image ( Print-PLUS Client Services. |
a 6.1 Improvements to Image Printing
@ Two factors make printing images a relatively slow process in a standard network environment:
< The DCPS software provides faster image printing capability because it:
H The following print command sends the files directly to the printer for printing:
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" W $ PRINT /QUEUE=queue-name /NOTIFY file-name.DDIF |
B The following print command translates the file to PostScript for printing:
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" o $ PRINT /QUEUE=queue-name /NOTIFY /PARAMETERS=NUMBER_UP=1 file-name.DDIF |
, PCL files are printed in either of two ways:
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" A $ PRINT /PARAMETERS=DATA_TYPE=PCL MYFILE.PRN |
h Figure 7-1 shows how DCPS software processes PCL files.
8 Figure 7-1 How DCPS Processes PCL Files
_ E To take advantage of native PCL mode without jeopardizing any of its 4 own functions, the DCPS software does the following:
F You can include both PostScript and PCL setup modules with your print H job, but the effects may vary from what you would get with a translated D print job. Most of the settings in a PostScript setup module do not C affect PCL printing. The settings in a PCL setup module affect the > printed output as if they were included in the print job file.
G Setup modules can be invoked explicitly by using /SETUP, or implicitly ! by using /FORM or queue defaults.
H Most printers supported by DCPS have a native PCL interpreter. Refer to G the DCPS Software Product Description (SPD) for a complete list of the / printers that are supported in native PCL mode. k 7.2.1 PRINT Parameters that Prevent Native PCL Usage
D If you are printing a PCL file on a printer supported in native PCL E mode, your file is sent directly to the printer unless the print job C requires special PostScript processing. You cannot print PCL files F directly to the printer in native PCL mode if your print job includes . one or more of the following PRINT parameters:
% /PARAMETERS=LAYUP_DEFINITIONa
/PARAMETERS=NUMBER_UP
/PARAMETERS=SHEET_COUNT (for values greater than 1)
/PARAMETERS=PAGE_LIMIT = (if starting page greater than 1, or ending page specified)
@ You can emulate the front panel settings of the Hewlett-Packard . LaserJet printer, using the following methods:
y Table 7-1 shows the PRINT parameters you can use to modify PCL print jobs.
| LaserJet IID Front Panel Selection | *PRINT Parameter | $Reference |
|---|---|---|
| #copies | /PARAMETERS=SHEET_COUNT | B Section 1.5 |
| duplex | /PARAMETERS=SIDES 1 | G Section 1.3 |
| orientation | " /PARAMETERS=PAGE_ORIENTATION 1 | > Section 1.4 |
| tray selection | /PARAMETERS=INPUT_TRAY | F Section 3.1 |
| paper size | /PARAMETERS=SHEET_SIZE | G Section 10.4 |
| manual feed | /PARAMETERS=INPUT_TRAY | F Section 3.1 |
? You can select the page size with the PAGE_SIZE parameter. The 1 following page sizes are supported for PCL files:
7_envelope or Monarch
A4
A3
Business_envelope or COM10
C5_envelope
DL_envelope
Executive
Letter (A)
Legal
Ledger (B)
F If you specify an unsupported page size, the PCL translator selects a 9 supported size that is closest to the size you specified.
F Page size commands in the PCL file override the page size you specify G in the PRINT parameter. You can create a PostScript setup module to be F applied to the translated file that redefines the page size operators o so that they are ignored when the file is printed. See Section 7.3.3 2 for information on creating setup modules. |
D DCPS ignores the following print parameters when printing PCL files 7 using the native PCL capability of a supported printer:
INPUT_TRAY
OUTPUT_TRAY
PAGE_ORIENTATION
PAGE_SIZE
SHEET_SIZE
SIDES
H In these cases the default setting of the printer takes effect. You can C manipulate PCL printer tray selection by inserting appropriate PCL 7 escape sequences in the print file or in setup modules.
H Alternatively, you can have these parameters affect your job by forcing H translation to PostScript on the host. To force translation, use a DCPS @ feature that forces translation such as PAGE_LIMIT or NUMBER_UP. a 7.3.2 Using Escape Sequences to Modify PCL Print Jobs
6 The format of the front panel mode escape sequence is:
' Escape Sequence Format
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" 0 ESC ! ` value P |
Decimal Values
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" & 027 033 096 080 |
A This format shows spaces between the elements of the command for > clarity. Do not include spaces in your actual command. |
6 Specify front panel settings by following these steps:
H Front panel mode is also disabled by the PCL reset escape sequence (ESC E).
D You can include PCL escape sequences for any of the following print attributes:
? PCL escape sequences allow you to specify both a primary and a @ secondary font. Escape sequences for both types of fonts can be A included in the front panel mode escape sequence for selecting a default font.
@ For example, a PCL escape sequence that sets the pitch to 16.66 H characters per inch (cpi) and ISO 17 Spanish symbol set is formatted as follows:
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" 1 ESC ! ` 1 P ESC (s16.66H ESC (2S ESC ! ` 0 P |
A This format shows spaces between the elements of the command for > clarity. Do not include spaces in your actual command. |
= This command includes escape sequences that do the following:
- To create a setup module, follow these steps:
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" ` $ PRINT /QUEUE=PS$A14 /PARAMETERS=DATA_TYPE=PCL /SETUP=module-name. _$ file-name.DAT |
F For example, the following PostScript setup module redefines the tray H select escape sequence (a4tray). The PCL file contains A a page size command to select A4 paper. If your printer does not D support A4 paper, you must make the printing system ignore the page E size command to print the file. You create a PostScript setup module F that redefines the PostScript operator to select A4 paper, as follows:
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" statusdict begin /a4tray {} def end |
E When producing a file to be printed using the PCL translator, choose : the LaserJet IID printer from your application. There are H incompatibilities among LaserJet printers; therefore, files created for H a LaserJet model other than the LaserJet IID printer may not be printed as expected.
D The PCL translator handles PCL files like the LaserJet IID printer, except in the following cases:
< Documentation specifying the PCL language is available from @ Hewlett-Packard. The documentation specific to the LaserJet IID includes:
| A HP LaserJet IID Printer Technical Reference Manual | HP part number 33447 90905 |
| 4 HP LaserJet IID Printer User's Manual | ! HP part number 33447 90901 |
E PCL files can be automatically recognized by the DECprint Supervisor F software. Files that begin with the PCL reset escape sequence (ESC E) ; or have a file extension identified as a PCL data type are & automatically recognized as PCL files. ` 7.4 Changing the Input Tray
H A PCL file may contain instructions to select the printer input tray on F a Hewlett-Packard LaserJet IID printer. When you print this file on a D different type of printer, the print job will fail if the specified F input tray is not available. You can modify the print job to redefine G the input tray selection command, using a PostScript setup module. You A can create a PostScript setup module to redefine the appropriate F PostScript operators, changing the selected input tray. The following H example shows a PostScript setup module to select PostScript tray 3 for F the upper input tray, and PostScript tray 1 for the bottom input tray.
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" : /settoptray {statusdict begin 3 setpapertray end} def = /setbottomtray {statusdict begin 1 setpapertray end} def |
G Input tray values are specific to the printer. Refer to the PostScript @ documentation for your printer to determine the numbers for the available trays.
C The input tray selection commands, and the PostScript operators to z which the PCL translator converts them, are listed in Table 7-2. G The translator uses the default setpapertray value if G no other value has been defined. A setup module with a different value overrides the default value.
| PCL Commands | 8PostScript Extension Operator | 5Default setpapertray Value |
|---|---|---|
| Upper tray | ! settoptray | 1 |
| Manual input | ( setmanualfeedtray | 0 |
| Manual envelope input | ( setmanualfeedtray | 0 |
| Lower tray | $ setbottomtray | 2 |
| Optional large tray | " setlcittray | 3 |
| Envelope feeder | , setenvelopefeedertray | 3 |
E If your PCL file requires soft fonts to be loaded in the printer, or H macros for defining forms or raster graphics, you can download the font ! or macro using PCL setup modules.
H It is not necessary to declare the fonts and macros permanent. You must D declare fonts and macros permanent only if the setup module or file ! contains a reset escape sequence.
G The system manager must create a device control library designated for B PCL setup modules, and include that library in the search list in e DCPS$STARTUP.COM, as described in the System Manager's GuideSystem Manager's Guide.
B PCL setup modules from the PCL device control library are handled G differently from ANSI and PostScript setup modules. Records from a PCL 9 module are not appended with carriage-control characters E (<CR><LF>), because PCL setup modules can include binary E data, such as PCL fonts and raster graphics. If the PCL setup module B contains lines of text that must be separated by carriage-control E characters, you must explicitly specify them in the PCL setup module.
7 You can include a soft font or macro in a print job by:
F To include a soft font or macro in a setup module, follow these steps:
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" i $ LIBRARY /INSERT /TEXT SYS$LIBRARY:pcl-library-name font-filename |
? To print the PCL file that requires the font or macro, use the following command:
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" p $ PRINT /QUEUE=queue-name /SETUP=font-filename data-filename.PCL |
G Your system manager can include the setup module in a form definition, F which can be associated with a queue by default. With this setup, you F need only specify the data file name and the queue name in your PRINT command. ^ 7.5.2 Including Font and Macro Files in PCL Print Jobs
D You can print files that require soft fonts or macros by having the C application include the font or macro in the data file. Or you can @ create a file that contains the font or macro and the data file. x 7.6 PC Driver Settings to Avoid Problems with PJL and TBCP
F Two printing protocols may cause problems with DCPS. These are HP PJL ? (Print Job Language), and HP TBCP (Tagged Binary Communication G Protocol). Documents created from a Windows application can have these H protocols included in the files. These protocols can be quite useful in @ some environments, but sometimes cause problems for DCPS or for C printers other than the type for which the document was created. A A brief description of PJL and TBCP is included below, followed by + instructions to prevent problems with DCPS.
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