Star Micronics user manual Bell commands, Initializing Delta

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62	Delta User’s Manual

days of computers, when teletype machines were used for com- puter terminals. These mechanical marvels had a bell in them that could be heard for blocks. This bell was used to signal the operator that something needed attention. The code that the computer sent to the teletype machine to ring the bell was, reasonably enough, called a bell code. Well the name bell code is still with us, even if the bell has changed to a beeper, and a lot of people still call the beeper a bell, even if it doesn’t sound like one. So with our trivia lesson out of the way, let’s see how we can “ring the bell.”

The code to sound Delta’s “bell” is CHR$(7), which is ASCII code 7 or (BEL). Any time Delta receives this code it will sound the bell for a quarter of a second. This can be used to remind an operator to change the paper or to make another adjustment to the printer.

You can try this by typing:

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LPRINTCHR$(7);

There are two other codes that affect the bell. One disables the bell, so that Delta will ignore a CHR$(7), and the other turns the bell back on. All three codes that affect the bell are shown in the following table.

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	Table	6-l
	Bell commands
Function		Control	code
Sound	bell	CHRW)
Disable	bell	(ESC)	“Y” CHR$(O)	-
Enable	bell	(ESC)	“Y” CHR$(l)

Initializing Delta

Up to now when we wanted to reset Delta to the power on condition we have had to either turn the printer off and then on again, or to send the specific codes that reset the particular fea- tures. There is an easier way. The control code (ESC) “@” will reset all of Delta’s features to the power on condition (as deter- mined by the DIP switches), with two exceptions. Those excep- tions are that (ESC) “@” will not erase any characters that you have stored in Delta’s RAM memory (Chapter 7 tells you how to create your own characters), and it won’t erase the macro if you

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Contents Delta User’s Manual @Copyright 1983 Star Micronics, Inc Special Message to the New Owner Delta User’s Manual Table of Contents Creating Your Own Characters Special Features Delta PrinterFormatting Your Output Getting It All Together Maintenance Appendix F Atari 400/800 Computers Appendix D TRS-60 ComputersAppendix E Osborne, Kaypro and CP/M Computers Appendix Commodore VIC-20 Computers Appendix DIP Switch SettingsAppendix Character Style Charts AppendixDelta User’s Manual Consumer Response 309 DIP Switch Quick ReferenceWarranty Inside Back Cover Command Quick Reference Serial busy protocols XONlXOFF Protocol ACK protocol IndexTables Xii Delta User’s Manual Closer Look Paper separator and paper guide used with roll paper Roll paper holder and holder shaft used only with rollPage Parallel interface connector the place where you hook Paper Selection and LoadingLoading single sheets Delta User’s Manual Loading roll paper Delta User’s Manual Closer Look Loading sprocket-feed paperOpen the tractor covers to expose the sprocket teeth Bottom feeding Delta-15 Figure I-10.Delta ready to run with sprocket-feed paperDelta User’s Manual Ribbon Installation Self-Test Closer Look Delta User’s Manual Getting Started With Delta Using Commercial Sojtware Getting Started With Delta First, some terminologyAscii Using Delta with SuperCalc Using Delta with word processorsPage Using this book without learning Basic Getting Started With DeltaEstablishing communications ListOPEN4,4 CMD4 List PRINT#4 CLOSE4 NEW LPRINTCHR$7 RUN NEW Lprint Testing RUNNEW CHR$ functionNEW LPRINTCHR$27CHR$52 2$3LPRINT Testing RUN Escape CodeSome problem codes ESC$=CHR$27 l@ LPRINTESC$Delta User’s Manual Printing Text With Delta ChapterLprint Condensedis the Narrowestpitch Print pitch Commands@ Lprint this is Elite Pitch Printing Lprint NOW WE are Back to Pica Pitch PrintingI s LPRINTCHR$27W CHR$@NOW Were Back to NormalExpanded print H153Lprint NOW WE are Back to Unexpandedpica Printing Print CommandsLPRINTCHR$14EXPANDEDELITE Pitch Making Delta print darkerPrint EmDhasis a Commands Lprint this is DOUBLE-STRIKEPRINTINGItalic Commands Italic printingUnderJining Superscripts and subscriptsMixing modes Superscript Subscript commandsNEW Lprint Thisline Uses Build Instructionset REGULAR.HEADING$= STRING$27,*+ Regular LPRINTRESET.ALL$Lprintelites Elite LPRINTPICA$ Pica LPRINTRESET.ALL$ Return ReturnIf Pica = False then LPRINTFOUR.DOT$ GOTO3590 Italics = False LPRINTROMAN$Repeatwith Italics If ENLARGED= True then LprintHere is the chart it produces Control Code FunctionPage Delta User’s Manual Line Spacing and Forms Control Changing Line Spacing This is what you will get Line spacing Commands Run the program again. Now the results will look like thisNEW Lprint Linenumber Moving down the page without a carriage returnForms Controls Form feedForm length commands Changing the Page LengthTop and bottom margin commands Lprint PAY to the OrderLineSpacingandFormsControl51 Summary Control codeESC Delta User’s Manual Formatting Your Output NEW Lprint ONECHR$9TWOCHR$9THREE CHR$9 Four One-shot tab command Left and right margin commands5B END 13@ Lprint ReturnLPRINTCHR$27P CHR$l@ CHR$Z@CHR$@ One-shot vertical tab command Control Code FunctionLChapter Now hear thisBell commands Initializing DeltaPrinting to the bottom of the sheet Some Miscellaneous commandsPutting Delta to sleep Unidirectional printingPrinting Direction Lprint LprintNext Lprint Work NEW Lprint Backspacedoes notLprint I===WORK Lprint Deletedoes not Backspace and deleteBlock graphics characters and special symbols Eighth Bit controls3pl Lprint I II=11CHR$ICHR$9 4pI Next I Lprint Next J Macro control code International Character set commandsInternational character sets Macro instruction Commands OFF Regularprint StartdefinitionMacro Lprint CHR$18 Pica END MacroFunction Bell Disable bell Enable bell Reset Off-lineOn-line Control codeDelta User’s Manual Creating Your Own Characters Dot Matrix Printing 000 0 eeeS&fee Defining Your Own Characters Rule I Download characters are seven dots highRule 2 Dots cannot overlap 8WRONG Add up each column of dotsCreating YourOwn Characters Download character definition command Assigning a value to your characterCharacter designs for the four card suits Next M Figure Y-10. The attribute byte n2 for our heart characterPrinting Download Characters LPRINTCHR$27CHR$36CHR$@ DEFINTA-Z Next Lprint Return Read X LPRINTCHR$XNext J DECKCARD=X Next Card ReturnLPRINTSUIT$SUIT Download Character dejfinition commands Proportkmal Characters12@ Lprint CHR$BITS 138 Next Only Difference Is the way They Are Accessed Creating Your Own Characters Lprint DEF.DOWN.CHAR$ NUMERAL.BOT$NUM= CHR$ASCII+ 2 + CHR$ASCII+ Mixing Print Modes with Download Characters Utility Program Gosub 950RETURN Gosub 660 Return REM **** Display Menu for Edit Mode Summary