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Star Micronics SR-10/I5 user manual n The seven bit dilemma

Models: SR-10/I5

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nThe seven bit dilemma

again. Finally line 110 sends a form feed to advance the paper to the top of a new page, and then uses the master reset to restore SR-IO/l5 to the power-on condition.

You can also set SR-lo/15 to print in one direction for one line only by using the command < ESC > “ < “. This command immediately moves the printhead to the left margin and then prints the remainder of the line from left to right.

nThe seven bit dilemma

Certain computers (most notably the Apple II) don’t have the capability to send eight bits on their parallel interface. They can only send seven bits. This would make it impossible for these computers to use SR- lo/ 15’s block graphics characters and special symbols if Star’s engineers hadn’t thought of a solution. (All of these characters have ASCII codes greater than 127 which means that the eighth bit must be on to use them.) The solution lies in the three control codes given in the following table.

Table 8-4

Eight bit control commands

-

-

Function

Turn the eighth bit ON

Turn the eighth bit OFF

Accept the eighth bit “as is” from the computer

Mode Control code

STAR < ESC > “>”

IBM <ESC> “>” STAR < ESC > “ = ”

IBM <ESC> “=” STAR < ESC > “##”

IBM <ESC> YL”

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Star Micronics SR-10/I5 user manual n The seven bit dilemma

Contents

SR-IO/I5 USER’S MANUALA note about the programs in this manual Federal Communications Commission Radio Frequency InterferenceStatement Trademark AcknowledgementA Special Message to the New Owner the new SR-lo/IsSo, gentle reader, with this manual we hand you the key to Self-Test Table of ContentsFirst Line StartingChanging ControlsCommands to Control Horizontal Position of Commands to Control Print StyleCommands to Control Vertical Position of CommandsFunctions of the Connector Signals Table of Tables Page CHAPTER SETTING UP SR- 1O/15WHERE SHALL WE PUT IT? WHAT HAVE WE HERE?on the next n Removing packing and shipping screws n Installing the platen knob n Installing the ribbon cartridge Figure l-5. A guide pin on each side of the ribbon cartridge helps to align the cartridge during installation 5. Now thread the ribbon carefully between the print head and the ribbon guide next to the platen. Take a good look at Figure l-7. You might want to use a ball point pen to lightly press the ribbon guide against the platen runbber roller while you insert the ribbon into the thin space between the print head and ribbon guide. Zmporiant Center the ribbon vertically in the middle of the print head to avoid misprints or the ribbon coming off during printing CONNECTING SR-lo/15 TO YOUR COMPUTER Figure 1-8. SR-lo/15 has parallel interface as standardCOMPONENTS AND CONTROLS GETTING TO KNOW YOUR SR-lo/15CHAPTER Figure 2-1. Front and rear views of SR-IO Power cord connectorGround terminal Figure 2-2. Front and rear views of SR-15 Power cord conndrBail lever Control ,Ll W POWER LAMP - Glows green when the power is on Page PAPER SELECTION AND LOADING Distance Left margin on the single sheet guidePosition of from Left-HandHere’s the proper sequence for loading 1. Turn off the power and remove the rear cover. AfterFigure 2-5. The metal guide is used to align the left margin you’ve practiced a few times, you’ll find it easy to loadPage RIBBON INSTALLATIONADJUSTING THE GAP SELF-TEST SOME TIPS FOR SMOOTHER OPERATION Page GETTING STARTED WITH SR-lo/l5 Using SR-lo/15 with commercial softwareUSING COMMERCIAL SOFTWARE CHAPTERn First, some terminology abbreviation line feedname of its namen The escape code CONTROLLING SR-lo/15 WITH BASIC CHR$ function Problem codes Command syntax used in this manualSelecting the right software mode Subjects covered in this chapter includePR#l LIST PR#@ OPEN4,4 cMD4 LIST CLOSE4LLIST it or however your computer does it. We’ve crossed the ESC CHR$69 24LPRINT TESTINGNEW 10 LPRINT CHR$7 RUN 10 LPRINT CHR$27 CHRS69COMMAND SYNTAX USED IN THIS MANUAL SELECTING THE RIGHT SOFTWARE MODE in STAR mode. There are some cases where you would use IBM mode with your computer, if you wish Page Underlining Superscript and subscripts Print pitch Print emphasis PRINTING TEXT WITH SR-lo/15In this chapter we’ll cover Near letter quality characters Italics SOME SPECIAL KINDS OF TEXTIn this program, line 20 selects NLQ characters with the Here is what you should get n Superscripts and subscripts CHANGING THE PRINT PITCH 30 LPRINT This line is CONDENSED pitch Now the results look like this line Here’s what you should get from this programThis pitchMAKING SR-lo/15 PRINT DARKER This linm im DOUBLE-8TRIKE and EMPHASIZEDMIXING MODES Master Select and the 256 ASCII Codes Double-strike Pitch Normal Emphasizzd Double-strike kEmphasizedControl code SUMMARYFunction Change the length of the page Set top and bottom margins In this chapter we will learn how to Change the vertical spacingLINE SPACING AND FORMS CONTROL STARTING NEW LINESCHANGING LINE SPACING 30 LPRINT CHR$27 A CHR$I 4@ LPRINT This line spacing is set to This is what you will getNEW 18 FOR I = 1 TO 60 LPRINT Line spacing is set to l/6 inch normal. 70 LPRINT CHR$2779 LPRINT CHR$27 A CHR$12 LPRINT CHR$27 fl11 command30 LPRINT CHR$27 A CHR$I LPRINT CHR$27 30 LPRINT CHR$27 3 CHR$Ispacing STAR modeCHR$h 10 Demo one-time line feeds FORMS CONTROLS Page Table 63 Form feed commands CHANGING THE PAGE LENGTHForm length commands TOP AND BOTTOM MARGINS Function SUMMARYControl code 10 Demo top and bottom margins 20 LPRINT CHR$12 Form feedn/216 inch feedESC “R” CHR$n ESC “r” CHR$n ESC “N” CHR$n ESC “0” One-time reverse line feed of n/216 inch for IBM mode Form feedESC “j”CHR$n CHR$ ESC CHR$ ESC “C” CHR$n ESC “C” CHR$O Reverse form feed Set page length to n lines CHR$nFORMATTING YOUR OUTPUT In this chapter we will discover how to use Horizontal tabsUSING HORIZONTAL TABS Vertical tabs Left and right marginsWhen you run the program now it produces this SR-10/15’s left and right margins work just like a SETTING LEFT AND RIGHT MARGINSThe commands typewriter-once they are set all the printing is done between themUSING VERTICAL TABS 60 LPRINT CHR$ll Fifth tab 12 LPRINT CHR$27 P CHR$lfl 14 LPRINT CHR$2@ CHR$4@ CHR$50 CHR$@First tab Second tab Third tab Fourth tab Control code “B” nl n2 dSUMMARY FunctionUnidirectional printing Eighth bit control Block graphics SPECIAL FEATURES OF THE SR-lo/15Commands covered in this chapter include Bell Master reset International character sets Macro instructionYou can try this by typing n Printing to the bottom of the sheet 20 LPRINT CHRS8 CHR$8 CHR$8 3@ LPRINT I===WORK 50 LPRINT CHR$127 CHR$127 CHR$127 60 LPRINT WORK 74LPRINT CANCEL TEXTNEW 10 LPRINT BACKSPACE DOES NOT 40 LPRINT DELETE DOES NOTn Unidirectional printing n The seven bit dilemma n Block graphics characters and special symbols Page 134 A 144 154 ti 164 iT 184 194 l 2!34 t 214 r 224 I-r L .J4 ? 244 c’ 254n International character sets The characters that change are shown beneath their ASCII code in Table Define macro ESC “Y” ESC “y” ESC “y” ESC “@” CHR$ CHRSl7 ESC “8” Control code CHRS7 ESC “Y”SUMMARY FunctionPage Designing and printing your own characters CREATING YOUR OWN CHARACTERSIn this chapter we’ll cover Designing proportional charactersTHE PRINT MATRIX 0.0 oaoDEFINING YOUR OWN CHARACTERS n Rule 1 Download characters are eight dots high 12*I WRONG w Assigning a value to your character Figure 9-9. Character designs for the three graph symbols n Download character definition command 0 000 1011 = Ildecimal 30 FOR M = 0 TO 40 READ MM 50 LPRINT CHR$MM 60 NEXT M 70 NEXT N PRINTING DOWNLOAD CHARACTERS10 LPRINT CHR$27 * CHR$l CHR$160 CHRS162 20 FOR N = 160 TO 80 LPRINT 90 DATA 139,2,5,8,241,0,0,241,8,5,2,0If it doesn’t, check the last program we ran for errors, then rerun it 140 LPRINT ESC$ $1 150 LPRINT wAutos TB$ PROPORTIONAL ERASING DOWNLOAD CHARACTER DEFINITIONSDEFINING CHARACTERSPage 250 DATA 115,185,0,0,0,16,42,0,42,4,0,0,0 230 DATA 105,200,0,0,0,0,2,~88,2,0,0,0,0240 DATA 112,41,0,0,127,0,68,0,68,56,0,0,0 Standard characters without proportional spacingW Connecting characters 10 Program to define and print numerals 430 DATA9, 244, 10, 244, 2, 8, 2, 8, 2, 0, 0 400 DATA 11, 0, 0, 0, 0, 0, 32, 0, 32, 0, 32420 DATA 11, 2, 0, 2, 0, 29 8, 2, 4, 10, 244 450 DATA 11, 8, 8, 0, 0, 0, 48, 8, 112, 0, 9670, 0, 70, 0, 70 DATA0, 6, 0, 14, 0 DATADefines download character into RAM for STAR mode ESC “*”1 nl n2 mO ml ...mZl Control codePage SR-10/15’s bit image graphics capabilities High resolution graphicsPRINTING WITH DOT GRAPHICS Printing a pre-defined shape Plotting a calculated shapen Specifying the number of columns of dots n Specifying the graphics data 50 PRINT #l,CHR$27 “K” CHR$WID MOD 256 CHR$INTWID/256 10 ‘Demo dot graphics 20 PI = 30 WID =49OPEN “LPTl” AS 111 WIDTH #1,255 60 FOR I = 0 TO WID-1 70 PRINT #1,CHR$2”INTl+SINI*PI/32*3.5+.5Page Page 60 GRAPHICS = CHR$27+CHR$75 70 DIM LOG0$4 80 WIDTH LPT1,255 DATA 192,128,0,0,0,0,0,0,0,0 DATA 7,3,0,0,0,0,0,0,0,0DATA 255,127,0,0,0,0,0,0,0,0 DATA 128,0,0,0,0,0,0,0,0,0LYFAC = 87/LY 600 ’ you need to change are the values in line 40. The array MASK% contains the values of the dots. In order to make this program run on the most computers, we’re using only six pins for graphics. With many computers, you can use all eight available pins. In lines 90 and 100 we’ve defined some other variables you’ll be interested in LX, LXFAC, LY, and LYFAC are used as scaling factors. By changing these values, you can change the size of your printed image or even distort it you can, for example, make our circle print as an ellipse. Experiment a little bit 610 Subroutine to plot a star 620 630 RAD = do these They were all printed using the plotting program in this chapterSo what differentDot graphics commands or ESC “*” CHR$3 nlQuadruple Double density graphicsDouble density/double speed ‘ density graphicsQuadruple density graphics Normal density graphicsDouble density graphics Double density/double speed CRT graphicsStar’s engineers have given programmers a unique shortcut for Master graphics selection for STAR mode ESC 3” n0 nl n2 ml m2 ESC “g” n0 nl n2 ml m2ESC ‘2” nl n2 ml m2... Print quadruple density graphics for IBM mode Master graphics selection for IBM mode