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Содержание NB24-10

Страница 1: ...USER S MANUAL NOT INTENDED FOR SALE 1PN 80821223 1...

Страница 2: ...mpliance with Federal Noise Interference Standard this equipment requires a shielded cable This statement will be applied only for the printers marketed in U S A Self Declaration Radio interferences r...

Страница 3: ...range of character sets for printing in thirteen languages l Choice of various typestyles l Easy front panel operation l Automatic paper feed And best of all your new printers is compatible with the...

Страница 4: ...ing the ribbon cartridge Installing the mute cover Installing the interface board Installing the font cartridge Chapter 2 Getting to Know Your Printer 9 Controls and parts of the printer Parts of the...

Страница 5: ...e printer with EasyWriter II Redefining pitch settings and print control codes A sample printout with EasyWriter II Redefining your own print pitches Redefining your own print control keys Using the p...

Страница 6: ...nging the print pitch Expanded print Condensed print Proportional printing Making words stand out Mixing print modes Chapter 5 Formatting Text 63 Lines and line spacing Starting a new line Reverse lin...

Страница 7: ...characters in the control code area Printing BIG characters The optional sheet feeder Reading a hex dump Chapter 7 Download Characters and Dot 107 Graphics Dot matrix printing Designing your own chara...

Страница 8: ...odes 149 Commands to control print style Font style controls Font pitch controls Special print modes Controlling the vertical print position Line feed and reverse line feed controls Form feed and rela...

Страница 9: ...Appendix H Serial Interfack Specifications Configuring the serial interface The serial protocols Serial busy protocols XON XOFF protocol ACK protocol 233 Index 239...

Страница 10: ...l Keep it out of direct sunlight and away from heat producing appliances l Use it only in temperatures where you are comfortable l Avoid locations with dust grease or high humidity l Supply it clean e...

Страница 11: ...allel inter face board with extra buffer memory and a serial interface board both optional More on interfaces later W Removing the printer cover The printer s cover is important for two reasons it kee...

Страница 12: ...e l 2 shows the proper posi tion and movement for both removing and replacing the cover Figure 1 2 Remove the printer cover by lifting carefully n Removing the packing tube The printer is shipped with...

Страница 13: ...here are two shipping screws inside the 15 inch type printer used to hold the internal chassis securely to the lower case dur ing shipping To get at these remove the printer cover from the printer The...

Страница 14: ...de the print head gently to the center of the printer Warning The print head gets hot during operation so let it cool off before you touch it 3 Set the release lever to either single sheet P or sprock...

Страница 15: ...lide the print head carriage _ i manually to the right OP left and the ribbon will slip down by itself into its proper position 7 Replace the printer cover A switch on the printer prevents the printer...

Страница 16: ...dard with your printer In addition there are two optional interface I F boards a serial interface board that lets you connect to a serial RS 232C com puter port and the other board contains extra buff...

Страница 17: ...dd one or two different character styles by installing the optional font cartridges to the printer To install or change a font cartridge start by turing off the power switch Fit the font cartridge int...

Страница 18: ...as two functions depending on what kind of paper you are using If you are using single sheets the guide is propped up on top of the printer and serves as a guide If you are using sprocket feed paper t...

Страница 19: ...Figure2 1 Front and rear views of the printer printer PLATEN This is the rubber cylinder that carries paper to the print head INTERFACE COVER On the back of the printer this cover conceals and protect...

Страница 20: ...nch type1 lo inch type1 i Figure 2 2 The control panel POWER INDICATOR Glows green when the power is on PAPER EMPTY INDICATOR Glows red when the printer runs out of paper and when certain printer malf...

Страница 21: ...proportional pitch with control code only Prop Pica and Pica condensed proportional pitch Cond with control code only Prop Elite and Elite condensed proportional pitch Cond with control code only _ P...

Страница 22: ...ressing two control keys at once Hex dump Self test 1 Self test 2 Type Style Print Pitch Panel mode Panel mode Quality Panel mode Figure 2 3 Extra functions while turning on the printer Hold down Pres...

Страница 23: ...when adjusting the paper PAPER BAIL The bail is the movable bar that holds the paper against the platen Its position depends on the setting of the release lever DIP SWITCHES There are one set of ten s...

Страница 24: ...n use the release lever for automatic feeding the printer must be turned on Single sheets from 5 5 to 8 5 inches wide 6 to 14 5 inches for the 15 inch type can be used and the paper guide must be fitt...

Страница 25: ...I _ __ Figure 2 6 Raise the paper guide for loading single sheets Figure 2 7 Prop up the paper guide by inserting the guide stand in the notches provided for it...

Страница 26: ...The printer will advance the paper automatically 9 When the paper stops set the release lever for single sheets again r Release lever in 7 1 Figure2 8 You can insert a sheet of paper automatically by...

Страница 27: ...alled remove it and put it aside for a moment 3 Place a stack of fan fold paper behind the printer 4 Open the sprocket covers on the right and left sprocket units as shown in Figure 2 9 Sprocket cover...

Страница 28: ...still positioned correctly and close the sprocket covers Figure 2 10 Figure 2 10 Close the sprocket covGG w pGa tioned correctly I I Figure 2 11 Ready to load the sprocket feed paper Note the reverse...

Страница 29: ...NG THE PRINT HEAD The distance between the print head and the platen must be adjusted to accommodate papers of different thicknesses To make this adjustment move the adjustment lever which is under th...

Страница 30: ...rinter don t turn it on yet 2 Insert a sheet of paper or sprocket paper either one 3 While holding down one of the following keys turn on the power switch Paper Feed key Self test 1 long On Line key S...

Страница 31: ...22 Self test 2 Standard mode IBM mode I ___ Figure 2 13 The self tests show you what the printer can print 1 I I I I Figure 2 14 Connect the cable like this...

Страница 32: ...DEFGH ghijklmnopqrstuvwxyz c x 0123456789 C ABCDEFGHI hijklmnopqrstuvwxyz S 0123456789 ABCDEFGHIJ ijklmnopqrstuvwxyz SX 0123456789 ABCDEFGHIJK jklmnopqrstuvwxyz j rS 0123456789 7 tiCDEFGilIJKL klmnopq...

Страница 33: ...24 MEMO...

Страница 34: ...m Some typical descriptions that you might pick for this printer are TTY type printer with backspace IBM dot matrix printer Centronics type printer Dot matrix ASCII printer or Epson LQ 1000 This print...

Страница 35: ...upport all of the advanced features of printers They usually provide a method for using a few of the more common print features such as boldface and underlining But as you are probably beginning to se...

Страница 36: ...gh to help you be suc cessful W The escape code Most of the special print functions start with a code called the escape code It can be entered in decimal or hexadecimal values by an ASCII character or...

Страница 37: ...ault settings but that would be hard on the printer cir cuits Also you ll save time and paper by letting the printer automatically reset with this code If you need more informa tion on DIP switch sett...

Страница 38: ...with most of the standard print func tions available with your EasyWriter Il word processing pro gram These functions require no special adjustments to the printer or your program They include 1 Prin...

Страница 39: ...ter is considered a Type B printer by the EasyWriter II program Before making any changes in the printer driver you should first check to be sure the printer selec tion is set for printer Type B Optio...

Страница 40: ...ode On this screen the column labeled Sequence is used to define the print functions in their ASCII decimal values For these print pitches we will use a combination of codes to turn letter quality on...

Страница 41: ...Character 0 44 Overstrike Support 2j Using Character from 45 Special Color Support 21 System Parameters 46 Sub Superscript Support 2j 47 Will underline retain font Y or be normal font N Iti 49 Start...

Страница 42: ...ntout with EasyWriter II Let s look at a short example to demonstrate how pitch set tings and print control keys can be used in a document The ex ample below shows the use of expanded and italic print...

Страница 43: ...ank you The subject title will print in expanded condensed characters which are twice the width as standard condensed characters The sentence in the paragraph is printed in italic pica print The last...

Страница 44: ...Whichever function you use last will cancel out any previous modes USING THE PRINTER WITH WORDSTAR Note If you have not read the General Concepts section in this chapter you should do so before contin...

Страница 45: ...the advanced features of this printer Without this patch you cannot place an escape in the WordStar docu ment and subsequently you are limited to using WordStar s repertoire of print functions A sham...

Страница 46: ...erting a new single sheet of paper The Clear option allows you to clear any or all of the other op tions that you have selected The Quit option ends the Print command and returns you to Ready Mode Sel...

Страница 47: ...ists of the decimal ASCII value for the code that you wish to send with leading zeros if required For example to print a worksheet in condensed print use the setup string 015 This sends ASCII 15 which...

Страница 48: ...Print Pitch I Panel mode mode All Panel mode Panel mode Type Style Print Pitch Panel mode Figure 3 1 The Panel Modes hold down keys while turning power on If you want to set only one attribute for ex...

Страница 49: ...of using the three keys ADVANCED PANEL FUNCTIONS The printer has the capability to do some basic formatting from the control panel as well as move the platen by precise amounts The following formatti...

Страница 50: ...urrent position If you want to change the position you can reset it by the following procedures 1 Set the Off Line mode by pressing the On Line key 2 While holding the Print Pitch key press the Top Of...

Страница 51: ...dges the margin with the sound of beep H Clearing the print buffer You can clear the contents of the print buffer with the control panel by the following procedures instead of turning off the printer...

Страница 52: ...cripts Boldface and emphasized text Mixing print modes To show you how to control your printer from a program we have chosen BASIC because it is easy to learn and easy to use Also more personal comput...

Страница 53: ...ing For example we would use LPRINT Hello to output Hello to the printer We ll see later how to LPRINT more than just character strings We started with Microsoft BASIC because it is the most wide ly u...

Страница 54: ...st call it A Appendix C shows all of the ASCII codes BASIC uses the CHR function to represent ASCII characters and many functions To print the letter A we would enter LPRINT CHR 65 To make the printer...

Страница 55: ...mal ASCII value the hexadecimal ASCII value and the CTRL value For example the ASCII code that causes the printer to advance the paper one line is decimal 10 This code may be referred to by any of the...

Страница 56: ...aders of this manual will be running such a wide variety of applications on so many different computers we can t show the exact way of sending codes to the printer for each one of them Instead as we i...

Страница 57: ...spond to control codes you must make sure that you ve set the DIP switches properly The rest of this manual discuss the various control codes to control this printer You ll find that many features hav...

Страница 58: ...d Line 30 prints a sample before line 40 switches printer back to LQ characters with an ESC x 1 When you run the program you should get this This 11 ne shows DRAFT charact ers This line shows LETTER Q...

Страница 59: ...talic on and off are shown in Table 4 2 Table 4 2 Italic commands Function Control code Italic ON ESC 4 except IBM P mode FS 4 IBM P mode only Italic OFF ESC 5 except IBM P mode FS 5 IBM P mode only U...

Страница 60: ...characters 20 LPRINT CHR 27 k CHR l 30 LPRINT This line shows Font 1 characters 40 LPRINT CHR 27 k CHR 2 50 LPRINT This line shows Font 2 characters 60 LPRINT CHR 27 k CHR O 70 LPRINT This line shows...

Страница 61: ...rinter print all styles of printing in both roman and italic but it can underline and overline them too The control codes are shown in Table 4 4 Table 4 4 Underline and overline commands Function Cont...

Страница 62: ...and subscripts Your printer can print in two different heights of characters The smaller characters are called superscriptsand subscriptsand are half the height of normal characters Superscripts print...

Страница 63: ...o 80 characters per line for the lo inch type or 136 characters per line for the 15 inch type You can also print 12 character per inch elite pitch which gives you 96 or 163 characters per line or 15 c...

Страница 64: ...lled expanded print Try this program to see how it works 10 Demo of expanded print 20 LPRINT Demonstration of I 30 LPRINT CHR 14 40 LPRINT EXPANDED 50 LPRINT CHR 20 60 LPRINT printing 70 LPRINT Notice...

Страница 65: ...esults look like this Permanent expanded mode stays on until i t is turned off When you turn on expanded print with ESC W 1 it stays on until you turn it off with ESC W 0 Table 4 7 Expanded print comm...

Страница 66: ...to see how the print pitches expanded print and condensed print can be combined 10 Demo of various print pitches 20 LPRINT CHR 15 30 LPRINT CHR 27 M 40 LPRINT This line is CONDENSED ELITE pitch 50 LPR...

Страница 67: ...ANDED PICA n Proportional printing Have you ever looked closely at the printing in books and magazines Doesn t it look nice The main reason is that each character is given an amount of space proportio...

Страница 68: ...h and line 40 turns on the propor tional printing with ESC p 1 Line 50 prints a line with pro portional elite pitch Then line 60 selects the pica pitch so that line 70 prints a line with proportional...

Страница 69: ...INT CHR 27 E 50 LPRINT This line is BOLDFACE and EMPHASIZED 60 LPRINT CHR 27 H 70 LPRINT This line is EMPHASIZED printing 80 LPRINT CHR 27 F 90 LPRINT This line is normal printing 100 END Run this pro...

Страница 70: ...ue command that lets you choose any valid combination of print modes and pitch This is the Master Print mode command It looks like this ESC n Here the value of n defines the print style to be selected...

Страница 71: ...t conflict are turned on at the same time the printer must choose which one to use For example suppose you turn on both Elite and Emphasized modes These cannot combine so the printer must make a choic...

Страница 72: ...s LINES AND LINE SPACING n Starting a new line Up until now the only time we have thought about printing on a new line is when we didn t want it to happen We learned that putting a semicolon at the en...

Страница 73: ...iage return as it does when it receives a line feed If you find that your printer double spaces when it should single space then you probably need to turn DIP switch 2 6 on or send ESC 5 0 command to...

Страница 74: ...e how easy it is to change the line spac ing NEW 10 Demo of line spacing 20 FOR I 1 TO 25 30 IF I 13 THEN 60 40 LPRINT CH R 27 A CHR I 50 LPRINT THIS LINE SPACING IS SET TO 1 60 NEXT I 70 LPRINT LINE...

Страница 75: ...NG IS SET TO 19 THIS LINE SPACING IS SET TO 20 THIS LINE SPACING IS SET TO 21 THIS LINE SPACING IS SET TO 22 THIS LINE SPACING IS SET TO 23 THIS LINE SPACING IS SET TO 24 THIS LINE SPACING IS SET TO 2...

Страница 76: ...are just one third what they were This is because ESC 3 CHR n sets the line spacing to n 180 inch Now let s consider the IBM modes When you run the first program with the IBM modes you cannot change...

Страница 77: ...ING IS SET TO l 6 INCH NORMAL By comparing with the results between the Standard mode and the IBM modes you ll notice that the ESC A CHR n command with the IBM modes defined the line spacing as n 72 o...

Страница 78: ...d mode only One time line feed of n 216 inch ES0 J CHR n IBM modes only One time reverse line feed of iESCi j CHR n n 180 inch One time reverse line feed of n 216 inch ESC j CHR n IBM modes only n Mov...

Страница 79: ...e 50 changes the spacing to 100 180 inches for one line only without moving the printhead The rest of the lines printed with the normal line spacing Notice that both line 30 and line 50 end with semic...

Страница 80: ...and 50 to this 40 Form feed 50 LPRINT CHR lZ Before you run the program turn your printer off and adjust the paper so that the top of the sheet is even with the top of the ribbon guide on the print h...

Страница 81: ...e top of form When you turn on the printer the top of form is automatically set to the current position If you want to change the position you can re set it by the following control code with the IBM...

Страница 82: ...When you turn the printer back on the page length will reset to its normal setting usually 11 inches TOP AND BOTTOM MARGINS Some programs don t keep track of where they are printing on the page This...

Страница 83: ...ry a simple application to see how these margins work Enter this program which will print 150 lines without top and bottom margins 10 Demo of top and bottom margins 60 LPRINT CHR 12 form feed 70 FOR I...

Страница 84: ...on each page Always send a form feed after setting the top margin or it will not work on the first page printed That s because the top margin only takes effect after a form feed Line 50 sets the top...

Страница 85: ...Set left margin at column nl and ESCj X yCHR nl CHR n2 right margin at column n2 Try setting the margins with this program 10 Demo of margins 20 GOSUB 70 30 LPRINT CHR 27 l CHR lO 40 LPRINT CHR 27 1Q...

Страница 86: ...g when you are using pica type and you change to elite type you will have room for more than 65 columns of elite printing between the margins HORIZONTAL AND VERTICAL TABS Suppose you need to move acro...

Страница 87: ...abs in columns 7 14 and 21 The final CHR O ends the string of tabs In fact any character that is not greater than the provious one will stop setting tabs This means that you must put all your tab valu...

Страница 88: ...ontal tabs Function One time horizontal tab of n spaces Absolute horizontal tab Relative horizontal tab Control code ESC f 0 CHR n ESC CHR nl CHR nZ ESC CHR nl CHR nZ except IBM P mode FS CHR nl CHR a...

Страница 89: ...ating how much the print head moves is the same as in the absolute horizontal tab command However the units by which the print head actually moves vary with the print pitch you are using as shown in T...

Страница 90: ...20 a vertical tab or VT will move you to line 20 whether you start from line 5 or line 19 Vertical tabs are not set at the power on default If you send a CHR ll which is the ASCII code for VT before w...

Страница 91: ...TAB Add one more line to the program to demonstrate one more feature of vertical tabs 80 LPRINT CHFt ll FIFTHH TAB Now when you run the program the first page looks just like before but line 80 sends...

Страница 92: ...line 30 sends a one time vertical tab with ESC f 1 command Line 50 sends a one time horizontal tab with ESC f 0 command Finally line 70 and line 80 send one time vertical tab and one time horizontal t...

Страница 93: ...u can store up to eight channels of tab stops They are numbered from 0 to 7 If you have already stored a set using ESC B command your printer has labelled it as channel 0 Try this program how to see t...

Страница 94: ...nd 25 in channel 2 and in line 40 we set tabs 17 and 28 in channel 3 Because the channels are stored you must make the printer to recall one before you use it so we used ESC CHR nO in line 80 CENTERIN...

Страница 95: ...CHR 27 1 CHR 20 30 LPRINT CHR 27 Q CHR 60 40 LPRINT CHR 27 a0 50 LPRINT THIS LINE IS LEFT JUSTIFIED 6C LPRINT CHR 27 al 70 LPRINT THIS LINE IS CENTERED 80 LPRINT CHR 27 a2 90 LPRINT THIS LINE IS RIGHT...

Страница 96: ...ow hear this You may have heard the printer s bellif you have ever run out of paper And you may have wondered why it s called a bell when it beepsinstead of ringing It s a long story that goes back to...

Страница 97: ...r 7 tells you how to create your own characters and if you set the Panel modes by the control panel settings at power on these functions will remain with this control code n Taking the printer off lin...

Страница 98: ...o ESC v Print normal zero ESC II 1 b 0 i 1 i 0 A n Backspace delete and cancel text Backspace CHR backs up the print head so that you can print two characters right on top of each other Each time your...

Страница 99: ...OT so that it doesn t even print In line 80 CHR 24 deletes the words in line 70 The semicolon at the end of line 70 prevents a line feed from causing that line to print before the printer receives the...

Страница 100: ...printer simply puts the characters into its buffer while it waits for a carriage return code In this program the RETURN key doesn t send a carriage return code To end this program and print the conte...

Страница 101: ...70 LPRINT CHR 27 CHR O 80 LPRINT This line is Normal space 90 END This line is added 10 spaces This line is added 8 spaces This line is added 6 spaces This line is added 4 spaces This line is added 2...

Страница 102: ...rolling how the printer prints Table 6 3 Printing direction commands Function Control code Print in one direction ESC U 1 Print in both directions ESC U 0 One time print in one direction ESC I Try thi...

Страница 103: ...for one line only by using the ESC command This command im mediately moves the print head to the left margin and then prints the remainder of the line from left to right n The seven bit dilemma Some c...

Страница 104: ...y use with the IBM modes is called character set l The special characters are printed out when you send ASCII codes 160 255 to the printer Your printer also offers character set 2 which is almost the...

Страница 105: ...2 239 n 244 249 254 n 5I 130 6 135 c 140 i 145 a 150 ii 155 c 160 d 165 II 170 7 175 180 1 185 71 190 I 195 1 200 L 205 210 215 t 220 4 225 p 230 p 235 6 240 245 J 250 6d 131 El 136 6 141 i 146 E 151...

Страница 106: ...haracters can be combined to create a figure the 5 of clubs 10 LPRINT CHR 27 6 20 LPRINT CHR 2lS CHR 196 CHR l96 CHR 196 CHR 196 CHR l96 CHR l91 30 LPRINT CHR l79 CHR 53 CHR 32 CHR 32 CHR 32 CHR 32 CH...

Страница 107: ...is what this program prints n International character sets Your printer changes languages by changing 12 characters that are different in the different languages These sets of characters are called in...

Страница 108: ...r control codes are 128 through 159 plus 255 These codes don t normally print symbols on paper rather they cause the printer to change modes To make them print as normal symbols requires an extra comm...

Страница 109: ...following ESC CHR 44 CHR l There is one more command to print a character in the control code area ESC A n This command prints one character determined by the value of n You ll get the same results a...

Страница 110: ...low until the cancel code is entered Table 6 7 Big character commands Function Control code Double high enlarged print ES0 h CHR l Quad high enlarged print ESC h CHR B Cancel enlarged print ESC h CHR...

Страница 111: ...T CHR 27 h CHR l 50 LPRINT DOUBLE 60 LPRINT CHR 27 h CHR O 70 LPRINT CHR 27 J CHR l8 80 LPRINT SIZED PRINTING 90 LPRINT LPRINT LPRINT 100 LPRINT THIS IS 110 LPRINT CHR 27 j CHR 54 120 LPRINT CHR 27 h...

Страница 112: ...eeder is installed you must set DIP switch 2 4 on to detect the paper out condition In addition the following functions are ignored when the automatic sheet feeder is installed Setting of the page len...

Страница 113: ...8 F9 FA FB FC FD FE FF OD OA _ PS b 01 234567 89 ABC3EFG HIJKLMNO _ PQRSTUVW XYZ I abcdefg hlJkimn0 pqrstuvw XYZ IT I a 01234567 89 FABCDEFG HIJKLH O PORSTUYW XYZ l abcdefg hlJkimn0 pqrstuvv xyz l Mos...

Страница 114: ...hex 1A Your printer prints 16 hex numbers per line printing the characters on the right hand side If it receives less than 16 it sits in a holding pattern awaiting more data Taking the printer off lin...

Страница 115: ...106 MEMO...

Страница 116: ...me understanding of dot matrix technology will be useful DOT MATRIX PRINTING Before you start to learn how to create your own characters you ll need some understanding of how dot matrix printers work...

Страница 117: ...ither direc tion that s what is meant by b directional printing it prints one column of dots at a time Each time a dot is supposed to print an electromagnet inside the print head causes the ap propria...

Страница 118: ...characters There are a number of design constraints for download draft quality characters l The matrix or grid on which you design the characters is five boxes wide by twenty four boxes high l Horizon...

Страница 119: ...see that each vertical column which has a maximum of 24 dots is first divided into three groups of eight dots Each group of eight dots is represented by one byte which consists of eight bits For exam...

Страница 120: ...racter this way instead of merely defin ing the overall width of the character Because this printer s draft proportional character definitions can also be used to print normal width characters which a...

Страница 121: ...does it knows which standard character we want to print every character is assigned a unique number The standard characters are assigned the ASCII code numbers from 0 to 255 For the download characte...

Страница 122: ...got the necessary knowledge to implement it Here it is ESC CHR O nl n2 m0 ml m2 dl d2 d3 dx except for the IBM P mode ESC CHR O nl n2 m0 ml m2 dl d2 d3 ak only for the IBM P mode Like the other print...

Страница 123: ...umn is described by three bytes Now we ve got everything we need to download one character to the printer The complete command for our car character with the Standard mode is shown below Now let s sen...

Страница 124: ...s are stored in a different part of the printer s memory To tell it to look in download character RAM instead of standard character ROM it requires another command ESC n Where n is either 1 to select...

Страница 125: ...MM 80 NEXT M 90 NEXT N 100 LPRINT 110 DATA 1 9 2 1 240 0 6 8 0 8 100 0 120 DATA 0 0 0 24 99 128 0 0 0 31 255 192 130 DATA 0 0 0 6 3 0 140 DATA 1 9 2 14 0 0 0 31 192 18 96 0 150 DATA 4 132 64 16 10 0 4...

Страница 126: ...HR g 440 FOR I 0 TO 347 STEP 50 450 LPRINT CHR 60 460 NEXT I 470 LPRINT 480 LPRINT CHR 9 490 FOR I 0 TO 493 STEP 50 500 LPRINT CHR 61 510 NEXT I 520 LPRINT 530 LPRINT CHR 9 540 SCALES 550 FOR I 2 TO 8...

Страница 127: ...ning characters selecting the download character set and copying ROM are exactly the same for each of the user defined print styles The print mode in ef fect when the characters are defined determines...

Страница 128: ...rs there are no restrictions on which dots can print This coupled with the closer dot spacing allows you to design characters with higher resolution The drawback is speed Normal letter quality charact...

Страница 129: ...ust like many of the other codes you have learned the com mand starts with an escape sequence ESC in this case This is followed by no which specifies the print density as shown in Table 7 2 But unlike...

Страница 130: ...tter figure out how to send that information Just as you do with download characters with dot graphics you have control over firing of every single pin of the print head When this printer produces dot...

Страница 131: ...ics modes COMPATIBILITY WITH EXISTING SOFTWARE With its ability to print eleven different graphics densities this printer s graphics abilities are advanced indeed There are many programs in fact that...

Страница 132: ...hange the density for graphics programs that use one of the four alternate codes The com mand looks like this ESC n0 nl Where n0 is one of the four letters K L Y or Z and nl is one of the numbers used...

Страница 133: ...124 MEMO...

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