headline across a page, then begin two-column printing. Step One: Create the Textfile ~The following textfile is located on /PRINTRIX under the name TXT.ARTICLE. Textfile: ^J=C^F=1NEW TYPESETTING SOFTWARE SAVES LIVES ^C=Y^J=F^F=2Late last March, two teenagers were strolling along a beach in Southern California, watching the sunset and generally taking it easy. Something glinting in the last rays of sun caught their eye, and they picked up a bottle, awkwardly corked with palm leaves and appearing to have a message inside. The message read: "To whomever finds this bottle - please send rescue mission as our supplies are running low and our health is bad." It went on the give details of the stranded travelers' location; they are on an island several hundred miles from shore. ^NPThe message had been typeset with Printrix, a new typesetting program which offers unparalleled clarity and diversity in fonts and page design. Said one of the teenagers, "As soon as we saw the graphic excellence of the message, we knew we had to act." So they contacted the local Coast Guard. The rescue was quick and efficient. Five yachtsmen were brought in from their stranded yacht the next day, treated for minor health problems, and released. According to Wendell Walker, the yacht's owner and captain, "I dont' know what we'd have done if we hadn't had the resources to attract someone's attention. Not just any written message to effective these days - we used Printrix to make sure. The columns command is positioned first on the priting line. The ^NP command in this textfile moves the typesetting to the top of the next column. Step Two: Design the Layout File Load LAY.LETTER, and set right and left margins to 1.5 inches. Use any fonts you like for the headline (Font 1) and the body (Font 2). Leave Two Column Print Set to No, so that the headline will be centered across the entire page. If you have one of these printers (Apple DMB, Imagewriters, ImageWriter II; C. Itoh 8510, 8510 SCP; Fujitsu DL2400, DL2600; NEC 8023, 8025, CP-7, P5, P5XL, P6, P7; Texas Instruments 855, 857, 865; Toshiba 1340, 1351, P351, P351C), Printrix automatically utilizes a reverse linefeed capacity to return to the top of the page between columns. If your printer was not listed above, you must return to the top of the page manually. To prepare for this, set Wait at End of Page to Yes. Step Three: Print From the Print Document Menu, specify TXT.ARTICLE, and print. If Wait at End of Page is set to No, you're done. If Wait at End of Page is set to Yes, the printer will pause at the bottom of the first column. At this point, turn the printer off-line, foll the paper back, turn it on-line, and press the spacebar to resume printing. CHAPTER 3: CONCEPTS This chapter is designed to give you a global, intuitive understanding of Printrix as a typesetting tool. We recommend that all users read this material early in their acquaintance with Printrix. Covered in this chapter are the raw materials used by Printrix, the operations performed on them by Printrix, and the ways the user may control these operations. We also explain key terms and concepts. Printrix Printrix is a typesetting program, which means that it offers you a variety of font, graphics, and page design possibilities. The fonts and page designs are applied to existing word processor textfiles. The process of selecting fonts and manipulating page design is called formatting. Why use Pritrix? Without Printrix, you are limited to the fonts built into your printer. These "native" fonts vary in quality, and are limited to the page design capacities of your word processor. Word processors vary greatly in the complexity and control they offer users. Printrix supplements the simple word processing programs and complements the more advanced. Finally, Printrix allows you to insert graphics into your textfile during printing, thus eliminating the need for manual paste-up. When typesetting with Printrix, the user provides the textfile and any graphics to be used. Printrix provides the fonts and formatting controls. You may change the fonts and formatting through the Printrix layout file or with embedded commands. Textfiles Printrix accepts textfiles form AppleWorks, AppleWriter, and Word Juggler. No special save process is required. Printrix also accepts ASCII textfiles. Some, but not all, word processors have a special save procedure to convert their native textfiles into standard ASCII. See your word processor's manual for information. ("ASCII" stands for American Standard Code for Information Exchange. Each letter, numeral, punctuation symbol, space, etc., has a corresponding number. Information is stored and manipulated in the form of the ASCII equivalents, rather than in its original form.) Embedded Commands The embedded commands are part of the textfile, entered by the user through the word processor. If the textfile was created by a supported word processor, Printrix reads both the word processor's standard embedded commands for page design, and special Printrix-style embedded commands which supplement the word processor's capacities. If the textfile was created by an unsupported word processor and converted to standard ASCII, there are no word processor embedded commands. All formatting must be done through Printrix-style commands or through the layout file. Embedded commands take effect within a document at the time Pritrix reads them. They give "local" control of formatting. Layout Files The layout file consists of a set of Printrix menus grouped toegther to control all aspects of a typeset page. Three main menus control text, graphics, and fonts. A layout file may be designed by the user for specific documents, and saved to disk for reuse at any time, with the same or different textfiles. Commands from a layout file affect the entire document, ulness an embedded command changes a setting or a new layout file is loaded. Layout files offer "global" control of formatting. Fonts Fonts, like type, are complete sets of letters, numerals, and punctuation of a particular design. Printrix's fonts exist as files on disk. These font files were created using Printrix's sister program, Fontrix. Font files are laoded from disk into your computer's memory in order to be used for typesetting. Printrix can use a maximum of four fonts in any one typesetting line. An unlimited number of fonts may be used in a document. The Printrix fonts are "bit-mapped," meaning that they are formed by arrangements of dots in a rectangular grid. When Printrix reads a textfile, it automatically converts the numerical code for each character in the textfile into the corresponding bit-map. The individual bit-maps are composited into lines of type. Each line of type is then sent to your printer as a unit. Graphics Computer graphics are files on disk which contain illustrations, charts, graphics, art, or other images stored in a bit-mapped format. Printrix accepts and prints three types of graphics: the standard single hi-res screen, the Fontrix Graffile, and the four-sector Print Shop compatible graphic. A Graffile is a graphic image of varying size, created by Fontrix. It may contain fonts and other images in any combination. A single hi-res screen can be created by Fontrix or by a number of Apple graphics programs. A four-sector clip art graphic can be creacted by Print Shop or by a number of Apple graphics programs which are compatible with Print Shop. Output to the Printer Since the Printrix fonts are bit-mapped, or arrangements of dots, they are printed in graphics mode. This means that the information sent tyo your printer is a stream of dots. The capacity to insert graphics into text is a consequence of this feature. The alternative to printing in graphics mode is printing in text mode. This means that the information sent to your printer is the ASCII code for the character in the textfile. The printer then converts the code into the corresponding character in the printer's native fonts. Word processors utilize text mode. This requires them to depend on the native fonts of the printer, and prevents their merging of text and graphics. Consequences of Graphics Mode As mentioned above, printing in graphics mode allows Printrx to merge graphics into the text, since the text is also graphic. Printing in graphics mode also allows much more flexibility in page design, linefeed advance, and font choice. Graphics mode and text mode vary in printing speed: text mode is almost always faster since less information is being sent to the printer. Finally, printing in graphics mode means that the size and proportion of the output is dependent on your printer's resolution and aspect ratio. Printer Resolution Printer resolution, or print density, refers to the number of dots printer per inch. Resolution is measured for both horizontal and vertical dimensions. Most printers offer several choices of resolution. Low-resolution printers may print 60-100 dots per inch; medium-resolution printers may print 120-180 dots per inch; high-resolution printers print 300 or more dots per inch. In general, the higher your printer's resolution, the better the quality of print from Printrix. Since Printrix fonts exist as bit-maps, with horizontal and vertical dimentsions measured in dots, a given font will produce output of different sizes when printed on printers of different resolutions. High-resolution printers will produce smaller output; low-resolution printers will produce larger output. Printer resolution should be taken into consideration when selecting fonts. Aspect Ratio Aspect ratio is the relationship of horizontal resolution to vertical resoltuion (width to height). Some printers have a "square" aspect ratio, in which the horizontal and vertical values are equal. Other printers have a "non-squarfe" aspect ratio, in which the horizontal and vertical values are significantly different. If you create a square on screen, with each side measuring 100 dots, a printer with a square aspect ratio will print a square, 100 dots per side. A printer with a non-square aspct ratio will print a rectangle, also measureing 100 dots per side. The propotions of the rectangle depend on the printer's aspect ratio. This same principle applies to graphics and to the Printrix fonts. Depending on your printer, a given font may appear elogated, compressed, or normal when printed. Agains, aspect ratio should be considerted when selecting fonts. You may like the effect of aspect ratio on the appearance of your output and choose to accept it. Alternatively, you may use the magnification commands to counteract the effects of aspect ratio. When magnifying a font, be sure that the original font is small enough so that when you magnify it, the result is the size desired. The Apple ImageWriter has two print modes. The first has a non-square aspect ratio, 161x72 dpi, and produces tall narrow print. The second, quad density, has a near-square aspect ratio, 160x144 dpi, and produces print of normal proportions. CHAPER 4 - CONVENTIONS This chapter covers the conventions used by Printrix. These conventions include syntax for both menu input and embedded commands. Covered here are filenames, file locations, use of the wildcard, letter values, number values, and relative vs. absolute values. The exact form or code used for input is called "syntax." Menu Input Printrix menus call for different types of responses: filenames and locations, letter values, and numerical values. In some cases, Printrix already suggests responses to the menu options. You may accept the default responses by pressing RETURN, or you may change the responses as follows. Filenames Filenames are entered in the form they exist on disk. A filnames may have a maximum of fifteen characters, must be with a letter, and may contain letters, numbers, and periods. For convenience and clarity inside Printrix, we have used standard naming conventions to separate the file categories. All font names are in the form SET.name; all layout file names are in the form LAY.name. You may continue this convention if you like, and we suggest that you do. However, Printrix will try to load any file you specify into any part of the program. If you try to load a font as a layout file, or vice versa, Printrix will display a "File Type Mismatch" message. An additional message: when saving layout files, use names which indicate the textfiles they are used for. You may find yourself creating files in pairs: one textfile and one layout file. File Locations Files are located in your system on disks, either floppy or rigid. The disks are identified by name. Additionally, a disk may be subdivided into subdirectories, or paths, which organize data storage and facilitate its use. These paths are also identified by name. Therefore, in order to direct Printrix to a file, you must know the name of the disk and any subdirectories which apply. This location information is referred to as the pathname, or "prefix." Therefore, in order to direct Printrix to a file, you must know the name of the disk and any subdirectories which apply. This location information is referred to as the pathname, or "prefix." Prefix information is entered into Printrix, with the filename, in the following format: /prefix/filename This may, in use, appear as: /diskname/path/filename or: /diskname/filename Wildcards may not be used for pathname information. The four Printrix disks are named /PRINTRIX, /CONFIGURE, /FONTS1, and /FONTS2. None of them contain subdirectories. When you boot Printrix, the prefix is automatically set to /PRINTRIX. You may load and save layout files to this disk automatically as long as there is room on the disk. To load files, and to locate graphics and textfiles, you must enter the appropriate prefix. Letter Values Letter values, such as L, R, and C (for Left, Right, and Center) are entered by pressing the letter corresponding to the parameter, such as H for Horizontal Placement. The letter value on screen will change to one of the other options. Continue pressing H until the desired option appears. Numerical Values Numerical values, in response to menu options,are entered as absolute values, meaning that the number on screen is based on the zero point for that parameter. In some cases, the value may be negative (e.g. character spacing gap may be set to -8). Wildcard Use Wildcards are a method for scanning a list of files and selecting the one you want. If you enter a wildcard in response to a Printrix menu, Printrix will display on screen a list of all the files that match the wildcard, in the specified location, and allow you to answer Yes or No to each file. Wildcards may be used only in response to menu questions. The wildcard used by Printrix is the asterisk (*). The asterisk replaces any character or string of characters. Therefore, if you were trying to load a layout file, you could enter LAY.* and all files on that disk which being with LAY.* would be displayed on screen, one at a time. You have the Yes/No option after each file. If you enter *, all files on the disk will be displayed. If you enter JOHN*, all files which begin with JOHN will be displayed. Wildcards may be ued only for filenames. They may not be used for pathnames. Embedded Command Syntax Embedded commands may be used for formatting or for graphics insertion. The commands are typed directly into the textfile, in the forms given in the reference section. All embedded commands being with a carat (^), followed by one to three lettters which identify the paramenter. In some cases, such as ^TAB or ^NP, that's all. In other cases, the command continues with an equals sign (=) and then adds the value, which may be a number or a letter. Letters in embedded commands may be in either upper or lower case. The letters used in embedded commands match the letters used in the menus, for easy remembering. Examples: ^ML=3, ^GH=C, ^J=F Filename and File Location Printrix contains two embedded commands, the graphic print command and the load layout file command, which require you to enter filename and file location in the textfile. Filename and file location are input as they are for menus, with the addition of quotation marks to set the prefix and filename off from the rest of the textfile. Wildcards may not be used with embedded commands. Example: As shown in ^GPG=/prefix/gfl.topo"the illustration If the prefix is absent from the textfile, or it its location information is incorrect, Printrix will pause during printing and display a message asking you to enter the correct location of the file. You may search as many locations as necessary, or you may omit the graphic and continue printing. However, you may not change the name of the graphic while printing. Letter Values Embedded commands which require letter values are entered into the textfile by typing the embedded command and the desired value. Examples: ^GH=C, ^GH=C, ^J=F Numerical Values Embedded commands which require numerical values are entered into the textfile by typing the embedded command and the desired values. The range of accepted values and the form for entering them varies according to the parameter. For each parameter, acceptable values and forms are specified in the reference chapter. Positive and Negative Values In some cases, the numerical value must be positive. For example, linefeed gap may be set to 0 or any positive integer, but cannot be less than 0. In some cases the numerical value may range from negative to positive, such as with character spacing gap. When usig a parameter which accepts negative values, the minus sign (-) always means a negative value, NOT a relative value. Relative and Absolute Values In some cases, the numerical value is absolute only. For instance, you may set a page number to any positive integer, but you must specify the integer directly. In some cases, numerical values may be entered as either relative or absolute values. These are two ways of defining a numerical parameter (such as margins, linefeed gap, etc.). Absolute values are calculated from a constanct point, such as the edge of the paper. Relative values are calculated from the previous value of the same parameter. Relative values are entered as numbers wi8th a plus (+) or minus (-) sign. Absolute values are entered as numbers, WITHOUT a plus or minus sign. If you are using a parameter whicha ssepcts relative values, the minus sign (-) always means "subract from previous value," NOT a negative value of the parameter. Examples: ^ML=1 sets the left margin one inch form the edge of the paper (absolute value). ^ML=+1 adds one inch to the current left margin value (relative value). If the left margin had been 1.5 inches, the new setting is 2.5 inches. ^FL-6 sets the linefeed gap to six dots (absolute value). ^FL=-6 subtracts six dots from the linefeed gap of the current font (relative value). If that value had been 10, the new setting is 4. Relative values are convenient for two main reasons: Experimentation. If you are trying out several possible formats, you can use relative values within the textfile, and change the starting values by menu command. This means that you will not have to re-open the textfile to change settings. Convenience. If you forget the original value of a parameter, but you know how much you want to change it, you may use relative values and save yourself the trouble of looking up the original value. Isolating Command Values from Text If you use embedded commands, you may occasionally find that the numbers which are part of the command are adjacent to numbers which are part of the textfile to be printed. Example: Our new telephone number is ^F=2383-4862. Printrix interprets the entire string of numbers as a font number. When it can't find a font numbered 2383, it continues printing in the previous font and ignores the numbers. The result is the absence of those numbers from the printed text. To avoid this, enclose the numerical part of the command in parentheses: Example: Our new telephone number is ^F=(2)383-4862. If the command contains a = or - sign, enclose it in parentheses as well: Example: ^ML=(=.5)2001 has become a film classic. CHAPTER 5 - WORD PROCESSORS Printrix accepts several types of textfiles for typesetting. Some preparation may be necessary, dependending on the type of textfile and the amount of formatting desired. Preparation may involve a special save processor or additional/substitution of embedded commands. This chapter covers the types of textfiles which you may use, and the preparation process. Overview Textfiles fall into two basic categories: formatted and unformatted. Formatted textfiles are also called "native" textfiles. Unformatted textfiles are also called "standard ASCII" or "generic ASCII" textfiles. Formatting refers to the process or inserting special codes into the textfile to control its printing. These codes do everything from sending carriage returns and form feeds to the printer to changing fonts. All word processors insert some commands into the textfile. Some codes are standard across word processors, while others vary greatly. A textfile which contains only standard codes is called "unformatted," and is able to be read an processed by a variety of programs. A textfile which contains nonstandard codes can usually be read and processed only by the word processing program used to create it, and other programs which contain special adaptations for those unique codes. Printrix will accept any unformatted textfile, and formatted textfiles from certain word processors: AppleWorks, AppleWriter, Word Juggler, and WordPerfect. ASCII Textfiles These files contain only carriage return/linefeed commands. Some word processors can convert native textfiles into ASCII files by stripping out the nonstandard commands. If you use an unsupported word processor, see its manual for an ASCII conversion process. If this is possible in your word processor, you may use it to create textfiles for typesetting through Printrix. You must find out through experimentaton whether your ASCII file is Hard or Soft Return. These two types of files differ in the type of carriage return commands they contain. Hard Return ASCII Hard Return files contain carriage return commands ONLY at the ends of paragraphs. When viewed on screen, the line of text extends off the screen to the right. Word wrap is not in effect. To use these files with Printrix, merely add any formatting commands that your like, make sure that you're configured to ASCII Hard, and print. Soft Return ASCII Soft Return files contain two types of carriage returns. Hard returns are placed at the ends of paragraphs, AND soft returns are placed between lines of a paragraph, where the word processor has wrapped the text. Most or all of a paragraph may be seen on screen at once. Since Printrix will re-wrap the text depending on the font and margin settings, the soft returns in the textfile must be converted by spaces so that typesetting may continue on the current line. Printrix performs this conversion automatically. However, the hard carriage returns must be kept operative, to allow you to begin a new paragraph, force a new line, etc. Because the same code may be used for both hard and soft carriage returns, Printrix has a special convention for distinguishing between them. Any single carriage return is interpreted as a soft return and converted to a space, allowing typesetting to continue ON THE SAME LINE. Any PAIR of carriage returns is interpreted as one hard return, and forces typesetting to continue ON THE NEXT LINE. Accordingly, to use ASCII Soft Return files with Printrix, move through the textfile and add carriage return as necessary. For example, if you want to double-space between paragraphs, the textfile must contain four carriage returns in that location. If you want to single-space the lines of an address, there must be two carriage returns between each line. Be sure that the carriage returns actually occur in pairs, with no intervening spaces or other invisible characters. Finally, aadd any Printrix formatting commands that you like, make sure that you're configured for ASCII Soft, and print. AppleWorks Printrix can read AppleWorks files, interpret some of the embedded commands, and filter out the rest. If your AppleWorks files contain formatting commands, refer to the chart on page 15 to see if those commands are supported. If they are, you may print the textfile without alterations. If they are not, you must insert the equivalent Printrix commands. You may also add other Printrix commands to expand the formatting possibilities. Then, make sure that you're configured fo AppleWorks, and print. AppleWriter Printrix has a special AppleWriter adaptation which automatically ignores the AppleWriter codes. Therefore, you may use native AppleWriter textfiles. To prepare them for typesetting, just add any Printrix commands that you like, make sure that you're cong=figured for AppleWriter, and print. Word Juggler Printrix has a special adaptation for Word Juggles files, which interprets and carries out some of the commond formatting commands and ignores the rest. This means you may use the native textfiles from Word Juggler. If these files contain formatting commands, refer to the chart on page XX to see whether or not the specifi command is supported by Printrix. If it is, no action is required. If it is not, insert the equivalent Printrix command. You may also insert other Printrix commands, to expact the formatting and typesetting possibilities. Make sure that you're configured for Word Juggler, and print. WordPerfect Printrix also has a special adaptation for WordPerect files, interpreting and carrying out some of the commdon formatting commands and ignoring the rest. This means that you may use the native textfiles from WordPerfect. If these files contain formatting commands, refer to the chart on page XX to see whether or not the specific command is supported by Printrix. If it is, no action is required. If it is not, insert the equivalent Printrix command. You may also insert other Printrix commands, to expand the formatting and typesetting possibilities. Make sure that you're configured for WordPerfect, an print. ____________________________________________________________ ____________ | | | | | | | | AppleWorks | AppleWriter | Word Juggler | WordPerfect| |______________|_____________|_____________|______________|_ ___________| | | | | | | | Boldface | X | | X | | |______________|_____________|_____________|______________|_ ___________| | | | | | | | Underline | X | | X | | |______________|_____________|_____________|______________|_ ___________| | | | | | | | Justification| | | | | |______________|_____________|_____________|______________|_ ___________| | | | | | | | Left | X | X | X | X | |______________|_____________|_____________|______________|_ ___________| | | | | | | | Right | | X | | X | |______________|_____________|_____________|______________|_ ___________| | | | | | | | Center | X | X | X | X | |______________|_____________|_____________|______________|_ ___________| | | | | | | | Fill | X | X | X | X | |______________|_____________|_____________|______________|_ ___________| | | | | | | | New Page | X | X | X | X | |______________|_____________|_____________|______________|_ ___________|| | | | | | | Tab | | | | X | |______________|_____________|_____________|______________|_ ___________| Word Processor Commands Supported by Printrix An "X" in a cell indicates that the word processor's embedded command for this function is automatically supported by Printrix. If a cell is blank, the word processor's embedded command is not supported, and you must use the Printrix form of the command. For example, to utilize tab characters in AppleWorks, AppleWriter, and Word Juggler, insert ^TAB in your textfile. If you're using WordPerfect, the tab key is sufficient. CHAPTER 6 - PRINTRIX MENUS Printing in Printrix is controlled by a combination of menu commands, seen on-screen in Printrix, and embedded commands, inserted into your textfile from your word processor. The embedded commands are covered in detail in Chapter Seven. This chapter introduced you ro the Printrix menus - their interaction within Printrix, how they control your location within the program's work areas, and the individual commands which are contained in each menu. First Time in Printrix To enter Printrix for the first time, boot the Printrix Program Disk by inserting it into Drive 1 and pressing Open-Apple CTRL RESET. Then press ESCAPE, insert the Printrix Configuration Disk and Follow the configuration procedure described in Chapter 1. Thereafter, when you load Printrix, you willenter at the Main Menu. To do this, boot the Printrix Program Disk by inserting it into Drive 1 and pressing Open-Apple CTRL RESET, or set the prefix to /diskname/PRINTRIX and entr -PRINTRIX. Printrix Main Menu When you enter Printrix, a layout file name LAY.PRINTRIX is automatically loaded. The screen displays the process, and may ask you for assistance in locating the fonts. Printrix then moves to the Main Menu. (See illustration, next page.) The Main Menu is a crossroads between the two work areas of the program: printing and page design. You choose your first task from this menu. After you've finished that task, return to the Main Menu to move to another work area or to exit. (there's one exception: for speed and convenience, you may move directly between the Print Document Menu and the Layout Document Menu.) To move to a work area from the Main Menu, enter the corresponding letter. To return to the Main Menu from any of its three branches, press ESCAPE. If you are everal branches down in one of the work areas, you may need to press ESCAPE several times. To exit Printrix from the Main Menu, press ESCAPE. See page XX to see the format of the Printrix Main Menu. Layout Document Menu Pressing L from the Main Menu brings up a set of menus which allows you to load an existing layout file from disk, to save the current layout file settings to disk, and to design the printed page, including text, graphics, and fonts. To load an existing layout file, press L from the Layout Document Menu, and enter the prefix and filename of the desired layout file. If you wish to save the current page and font settings as a layout file, press S from the Layout Document Menu. Enter the prefix and filename. You may writer over the current layout file by saving the new file to the same location under the same filename, or you may create a new layout file by entering a different location or a different filename. The layout file will contain all settings from the Text Format Menu, the Graphics Format Menu, the Font Library, and the font parameters. To enter the Font Library, the Text Format Menu, or the Graphics Format Menu, press the corresponding letter from the Layout Document Menu. When you have completed your work in the Layout Document Menu, press ESCAPE. Printrix will return you to your previous location (the Main Menu or the Print Document Menu). See page XX to view the format of the Printrix Layout Document Menu. Text Format Menu Pressing R from the Layout Document Menu brings up a new menu, the Text Format Meny, which lists all options for controlling the placement of text on the page, and related commands. Included are such parameters as form size, margins, text justification, page numbers, numbers of copies, etc. You may accept the default values, or change as many as you like by pressing the letter which corresponds to the parameter to be changed. If the parameter calles for a numerical or text value, enter the value desired. If the parameter offers a set of delimited options, pressing its menu letter will automatically cause the value to change. (For example, press J for Justification. F will change to L, to R, to C, and back to F, as you continue pressing J. When all parameters are set as desired, press ESCAPE to return to the Layout Document Menu. See page XX to view the format of the Printrix Text Format Menu. Graphics Format Menu Pressing G from the Layout Document Menu brings up the Graphics Format Menu, which displays all options for controlling the printing and placement of graphics in the document. Included are such parameters as magnification, horizontal positioning, and relationship of text to graphics. You may accept the default values, or change as many as you like by pressing the letter which corresponds to the parameter to be changed, and either entering the desired value or continuing to press the menu letter until the desired value appears on screen. When all parameters are set as desired, press ESCAPE to return to the Layout Document Menu. See page XX to view the format of the Printrix Graphic Format Menu. Font Library Format Menu Pressing F from the Layout Document Menu brings up a sequence of three menus. The first menu displays the fonts that currently are loaded for use in typesetting. Each font is assigned a number. These numbers are used to identify fonts for manipulation by menu and by embedded command. An asterisk by the number indicates the current active font. If you wish to load one or more new fonts, select the number into which the new font will be loaded by pressing the corresponding number key. Then press L from the list of commands displayed at the bottom of the screen. A question appears on the screen, asking you to identify the desired new font by prefix and filename. Enter the necessary information, pressing RETURN after each entry. Press RETURN alone to accept the default values. Repeat this process for any other new fonts. If you wish to delete one of the fonts currently loaded, select the corresponding number, and press D to empty that position. If you wish to change the parameters of one of the current fonts, select that font, then press C. A new menu will appear on screen, listing all possibilities for font manipulation. Change as many as you like, and press ESCAPE to return to the previous menu. A final option from the Font Library Menu allows you to reload a group of fonts from a specified area. See Chapter Seven for details on this function. When all fonts and font parameters are set as desired, press ESCAPE to return to the Layout Document Menu. See page XX to view the format of the Printrix Font Library Format Menu. Print Document Menu Pressing P from the Main Menu brings up a sequence of two menus. The first menu allows you to specify the textfile to be printed, with the prefix information necessary to locate the file on disk. The second menu displays the current printing paramenters, as determined by the layout file in use. The settings include margins, form size, justification, color, page numbers, etc. You may accept the parameters as they stand, or change any or all of them. See Chapter Seven for details on each parameter. This screen is a duplicate of the Text Format Menu. Any changes here will be reflected there, and vice versa, If you want to change any font or graphics parametrs, or if you want to save any changes made to the page design from the Print Document Menu, you must enter the corresponding menu from the Layout Document Menu. For convenience, you may move directly from the Print Document Menu to the Layout Document Menu, without returning to the Main Menu. Press L, as displayed on screen. When you have finished your work in the Layout Document Menu, press ESCAPE. If you entered the Layout Document Menu from the Print Document Menu. If you entered from the Main Menu, Printrix will return you there. When all parameters are set as desired, press RETURN to accept them and begin the printing process. When printing is complete, Printrix will return to the Main Menu. You may halt printing at any time by pressing ESCAPE. Printrix kills the print job and returns to the Main Menu.