Star Micronics NB-15 user manual Ascii

Page 37

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simultaneously pressing a letter key. The particular letter key that is pressed determines what code is sent. Control and A sends ASCII code 1, control and B sends ASCII code 2, and so on. Because of the way they are created, these codes are often referred to as “control-A” etc.

So there are four common ways of referring to the same set of codes: the character or name of the code, the decimal ASCII value, the hexadecimal ASCII value, and the “control-” value.

For example, the code that causes the printer to advance the paper one line is ASCII 10 (decimal). This code is commonly referred to by all the following names:

Line feed

-

its

name

 

 

 

(LF)

 

-

the

abbreviation

of its

name

ASCII

10

-

its

decimal value

 

 

ASCII

&HOA -

its

hexadecimal value

(the &H signifies

 

 

 

hex)

 

 

 

CHR$(lO)

-

the

way

it’s used

in BASIC

control-J

-

the

way

you send

it from a keyboard

There’s a chart in Appendix B that shows these side-by-side so that you can convert back and forth.

The reason that we are telling you all this about ASCII codes is that people are not very consistent about how they describe ASCII codes. We are going to help you use your printer with commercial software, but we don’t know what its documenta- tion is going to call the various codes. So if you know all the dif- ferent things that the codes might be called, it will be easier to figure out what it is trying to tell you.

Now, armed with the knowledge of what to look for, you can delve into manuals of your commercial software and dig out the secrets of how to send “control codes” to your printer. When you find the method that your program uses, then you can shop through this manual to find the function that you want to use. By translating the codes from the system that we use, to the system that your commercial software uses, you should be able to use many of your printer’s advanced features. It may help, however, if we look at a couple of examples.

USING YOUR PRINTER WITH SUPERCALC

SuperCalc is typical of the many spreadsheet programs that

Image 37
Contents USER’S MANUAli Tatement Special Message to the New Owner Table of Contents CHR$ Chapter Controlling with BasicChapter Special Features of the Printer Functions of the Connector Signals TRS-80 Basic Appendix G Serial Interface SpecificationsSetting UP Your Printer Page Tion and movement for both removing and replacing the cover Page Print head Printer Slide the I/F board into the slot Page Getting to Know Your Printer Page Page Page Selecting and Loading Paper ‘igure 2-4. Raise the paper guide for loading single sheets You can insert a sheet of paper by using the release lever To align paper that is not in straight Sprocket cover You can raise While trrnirrgon the power Self-test DIP switch 2-2 on Efgh!jklmnopqr¶tuvwxyz~ ?lSS&‘ TOF During normal operation Connecting the Printer Page Memo Using Commercial Software Page Ascii Using Your Printer with Word Processors Page Memo Controlling With Basic List PR#ONEW Lprint Testing RUN ESC W Lprint CHR$27WCHR$l Lprint CHR$27WCHR$49 Lprint CHRS27Wl Memo Printing Text Lprint CHR$27 xl ESC Lprint Undelined OFF ESCLprint Overlined Boldface on Escso When you run this program you should get this Demonstration Condensed Here’s what you should get from this program OFF Elite mint Summary notes Memo Formatting Text This is what you will get This Line Spacing is SET to Run the program again. Now the results will look like this Here is what your printer will produce Lprint CHRS12 Line NumberIOI ESCNCHR$n Lprint this is LINE1 Next This is Line Return TWO Three Four ONE This command sets the horizontal tab to every eight columns Next Try thisprogram tosee how this works Lprint CHR$11 First TAB Lprint CHR$llFIFTH TAB CHR$O Lprint 2ND TAB of CHANNEL’ Memo Special Features Printer Lprint CHR$7 ESCVCHR$O Here is what this program will print Lprint CHR$27il Printing direction commands Function Control code Next Lprint Lprint Eighth bit controls Next J 129 LPRINTCHR$27 LPRINTCHR$27= Lprintlprint Double This is Double Sized Printing Lprint CHR$I Next LprintPage Creating Your OWN Characters Print Matrix Defining Your OWN Characters Usethisgridoronesimilartoittodefineyourown draftcharacters Wrong 128 Assigningavalueofcharacterspace Characterdesignsforthetwographsymbols Page Read MM LPRINTCHR$MM Next M Next N Lprint LPRINTCHR$I Next Lprint CHR$I Next LprintLprint LPRINTGERMANYCHR$9 Lprintscales Read MM Lprint CHR$MM Next M Data 1, 9, 2, 31,253,64, 32, 1,128,80MO+ml +m2 105 106