Star Micronics NB-15 user manual ESCNCHR$n

Page 68

This program should print “PAY TO THE ORDER OF:” twice, and they should be 7 inches apart. Line 20 sets the form length to 7 inches. After line 30 prints, line 40 sends a form feed advance the paper to the top of the next form. Line 50 then prints its message.

After you have run this program, turn off the printer and ad- just the top of form position. When you turn the printer back on the page length will reset to its normal setting (usually 11 inches).

BOTTOM MARGIN

Many programs that you use a printer don’t keep track of where they are printing on the page. This causes a problem when you get to the bottom of a page because these programs just keep on printing, right over the perforation. This makes it very hard to read, especially if a line happens to fall right on the perforation. And if you separate the pages then you are really in trouble.

Of course your printer has a solution to this predicament. This printer can keep track of the position on the page, and advance the paper so that you won’t print too near the perforation. There is a command to do this. The control codes to set and cancel are given in the following table.

Table 6-4

Bottom margin commands

Function	Control code
Set bottom margin to n lines	(ESC)“N”CHR$(n)
Cancel bottom marain	(ESC)“O”

When you set the bottom margin with (ESC)“N”CHR$(n), the value of n tells the printer how many blank lines should be left at the bottom of the page.

Let’s try a simple application to see how these margins work. Enter this program, which will print 150 lines without bottom margins.

10 ’ Demo	of bottom	margin
40 LPRINT	CHR.$(12);	' Form feed

Image 68

Contents USER’S MANUAli Tatement Special Message to the New Owner Table of Contents Chapter Controlling with Basic CHR$Chapter Special Features of the Printer Functions of the Connector Signals Appendix G Serial Interface Specifications TRS-80 BasicSetting 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 PR#O ListNEW Lprint Testing RUN ESC W Lprint CHR$27WCHR$l Lprint CHR$27WCHR$49 Lprint CHRS27Wl Memo Printing Text Lprint CHR$27 xl ESC Lprint Overlined OFF ESCLprint Undelined Boldface on Escso When you run this program you should get this Demonstration Condensed Here’s what you should get from this program OFF Elite mint Summary notes Memo Formatting Text This is what you will get This Line Spacing is SET to Run the program again. Now the results will look like this Here is what your printer will produce Line Number Lprint CHRS12IOI ESCNCHR$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$27= Lprintlprint Double This is Double Sized Printing Next Lprint Lprint CHR$IPage 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 Lprint CHR$I NextLprint LPRINTGERMANYCHR$9 Lprintscales Data 1, 9, 2, 31,253,64, 32, 1,128,80 Read MM Lprint CHR$MM Next MMO+ml +m2 105 106