Star Micronics NB-15 user manual Usethisgridoronesimilartoittodefineyourown draftcharacters

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the same way. Make up some grids (photocopy Figure 8-3 if you wish) and get ready to be creative! (Just in case you are not feel- ing creative, and to make our explanations a little clearer, we’ll be using a picture of an automobile as an example of a draft download character. You can see how we’ve laid it out in Figure 8-4. Later in this chapter we’ll use this character to create a small graph.)

1st byte

			128	ASCII code:
			64	ASCII code:
			32	Left space:
	2nd		16	Left space:
			16	Right space:
			8
	byte	J

			4
			4
			2
			1	Data
				1st:
				2nd:
				3rd:
			OL	4th:
	3rd		16	4th:
	3rd		16	5th:
	byte	i	8	5th:
	byte	i	8	6th:
			4	7th:
				7th:

?	8th:
	8th:
	9th:

i

Figure 8-3. Usethisgrid(oronesimilartoit)todefineyourown draftcharacters.

You’ll notice that Figure 8-3 includes a lot of information around the grid. Don’t be intimidated; we’ll explain each item as we come to it in our discussion of defining and actually printing download characters.

nRule 1: Dots cannot overlap

As you can see in Figure 8-4 our car has a nearly continuous outline. But, you may ask, why not make it a really solid line and print all the intermediate dots, as shown in Figure 8-5? Because the dots that straddle the vertical lines in the grid actually overlap those inside the boxes. If we tried to print overlapping

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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$27 xl ESC Lprint Undelined OFF ESCLprint Overlined Boldface on Escso When you run this program you should get this Demonstration Condensed Here’s what you should get from this program OFF Elite mint Summary notes Memo Formatting Text This is what you will get This Line Spacing is SET to Run the program again. Now the results will look like this Here is what your printer will produce Line Number Lprint CHRS12IOI ESCNCHR$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