Epson P-80 User Manual Download Page 33

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Chapter 4

Control Codes

This chapter explains how a computer uses control codes to send

instructions to your printer. Specifically, you’ll learn how the control

codes work with the P-80. (Appendix A shows a complete listing of all

the P-80 control codes.)

If you are going to use your printer with commercial software pack-

ages, it is not necessary for you to read this chapter. You can follow

the printer installation instructions given in your computer or soft-

ware manual. Most software packages include installation routines

for dot matrix printers. It may be that you only have to specify which

type of printer interface, such as RS-232C, you are using.
Note: As mentioned in Chapter 1, the P-80 uses the RS-232C serial

interface. If your software asks for specifications you do not

understand, consult your dealer for assistance.

ASCII Codes

Since there are many different kinds of computers and many

different kinds of printers, almost all computers use a standard set of

codes to communicate with printers. This set of codes is called the

American Standard Code for Information Interchange

(ASCII).

Pressing a character key on your computer produces a bit pattern

representing a particular ASCII (pronounced “ask-ee”) code. The code

is interpreted by the printer, which responds by printing the letter,

number, or symbol desired.

Control codes

control specific printer

functions.

Most of the 256 ASCII numbers are codes for specific characters.

Typically, codes 32 through 126 are reserved for the standard set of

Summary of Contents for P-80

Page 1: ...EPSON P 80 PORTABLE PRINTER User s Manual ...

Page 2: ...dditional suggestions The user may find the following booklet prepared by the Federal Communications Commission helpful How to Identify and Resolve Radio TV Interference Problems This booklet is available from the U S Government Printing Office Washington DC 20402 Stock No 004 000 00345 4 WARNING The connection of a non shielded printer interface cable to this printer will invalidate the FCC Certi...

Page 3: ...2 Operation and Maintenance 15 Switches and Indicators 15 The control panel 15 Paper control switches 16 Paper end detector 17 The Battery and AC Adapter 17 Battery Replacement 19 Maintenance 22 3 Installing Paper 23 Paper Types 23 Paper sizes 24 Paper Release Lever 24 Paper Loading 24 Removing the paper 26 The P 80 Self Test 26 4 Control Codes ASCII Codes Using Control Codes ASCII Codes as CHR n ...

Page 4: ...hics Program 45 Graphics Programming Tips 47 Linespacing 47 WIDTH statements 48 Semicolons and commands placement 48 ASCII Codes and Character Sets A 1 ASCII Codes A 1 International Characters A 3 Graphics Characters A 3 Special Characters A 4 Control Code Summary B 1 Control Codes By Function Character Width Pitch Character Weight Print Enhancement Mode and Character Set Selection Line Spacing Fo...

Page 5: ...E Specifications of the P 80 E 1 Printing E 1 Paper E 2 Printer E 2 Interface E 3 Specifications E 3 Interface Connector E 3 Interface Signals E 4 V ...

Page 6: ...18 2 4 Removing the screws 19 2 5 Lifting the cover 20 2 6 Removing the battery 20 2 7 Replacing the power switch cover 21 2 8 Replacing the battery holder cover 22 3 1 Loading the paper 25 3 2 The P 80 self test 26 5 1 Main columns and intermediate positions 34 5 2 Overlapping dots 34 5 3 Comparison between print pitches 35 5 4 Pica and Expanded letters 35 5 5 Print quality differences 36 6 1 6 2...

Page 7: ...1 10 1 2 International character switch settings 11 1 3 Settings for switch 2 12 1 4 Baud rate switch settings 12 4 1 5 1 Summary of modes 37 5 2 Typestyles 38 E 1 Characters E 2 List of Tables The P 80 and ASCII Codes 28 vii ...

Page 8: ...Contains various print modes that can be combined to produce different print styles These include Roman and Italic print fonts Four different print pitches Bold printing l Has an easy to use Underline mode l Creates graphics with two densities and has a special graphics char acter set to let you create your own charts diagrams figures and illustrations l Generates eight international character set...

Page 9: ... helpful information about selecting print styles and character sets and about using control codes to obtain cer tain printer functions Appendix A lists the control codes and the pos sible terms for each code Appendix A also shows the character sets available on the P 80 Appendix B summarizes the control codes and Appendix C lists the codes by function Appendix D gives informa tion on how to use y...

Page 10: ...adhesive or packing pads that you see It s a good idea to save all your packing materials You may want to store or ship your printer someday Printer Preparation Once you have verified that all the items for the printer are included you re ready to prepare the printer for operation Start by identifying the printer s main parts see Figure l 2 Take a couple of minutes to familiarize yourself with the...

Page 11: ...Figure 1 1 Unpacking the P 80 Top view Figure 1 2 Identifying the printer parts 4 ...

Page 12: ... a ribbon cassette There is a plastic gray lever on the left side of your printer This lever holds the back cover shut Notice the words OPEN and LOCK Ignore the words FEED and FREE above and below the lock lever for now They deal with paper installation functions discussed in Chap ter 3 To unlock the back cover push the lever to the open position see Figure l 3 To lock it hold the back cover shut ...

Page 13: ...ow indicates With slight pressure pull up on the stand until it is vertical The function of the paper stand is to keep the paper straight There is a plastic paper holder at each side of the paper guide These holders keep your paper from sliding The holder on the left is station ary and is labelled LEFT EDGE The right holder is a sliding scale that will accommodate paper from 5 to 8 inches wide Whe...

Page 14: ...mpletely replace it by positioning the hinge at each end of the cover over the hinge posts at the front of the printer The hinges allow you to easily open and close the cover without removing it Figure l 5 Lifting the front cover The P 80 s ribbon cassette is easy to install You never have to worry about getting ink on your hands Just follow these simple steps and refer to Figure 1 6 for quick ins...

Page 15: ...Figure 1 6 Installing the ribbon 8 ...

Page 16: ...ked the knob is pushed in flush with the right side To bring it out push the center of the knob in and release it The knob should pop out To feed the paper manually turn the knob clockwise See Figure 1 7 Figure 1 7 Manual feed knob DIP Switches Two groups of switches called DIP switches are located at the back of your printer Figure l 8 The first group of four switches is referred to as switch 1 a...

Page 17: ...zed in Table 1 1 Table l l Settings for switch 1 Switch No Function OFF ON Factory setting 1 1 International Character Sets ON 1 2 1 3 See Table 1 2 ON ON 1 4 Auto line feed No auto Auto line OFF AUTO FEED XT line feed feed signal with CR Switch 1 1 1 2 1 3 These switches are used to determine the default international character set The factory set condition is for the U S A characters Table 1 2 s...

Page 18: ... automatic line feed with each carriage return If you are not sure if your computer sends a line feed code to the printer at the end of each print line leave the switch the way you find it You can change this switch if your first printing occurs all on one line or with the lines spaced twice as far apart as you requested Switch 2 The P 80 uses the RS 232C serial interface to communicate data from ...

Page 19: ...ngs Table l 4 Baud rate switch settings DIP2 5 DIP2 6 DIP2 7 DIP2 8 Bit rate bps ON ON ON ON 75 OFF ON ON ON 110 ON OFF ON ON 134 5 OFF OFF ON ON 150 ON ON OFF ON 200 OFF ON OFF ON 300 ON OFF OFF ON 600 OFF OFF OFF ON 1 200 ON ON ON OFF 1 800 OFF ON ON OFF 2 400 ON OFF ON OFF 4 800 OFF OFF ON OFF 9 600 ON ON OFF OFF 300 OFF ON OFF OFF 1 200 ON OFF OFF OFF 2 400 OFF OFF OFF OFF 9 600 Connecting the...

Page 20: ...etails on how to connect your computer to your printer or consult your dealer As mentioned above the P 80 uses the RS 232C serial interface but the connector is a 6 pin DIN type Figure 1 9 shows where you con nect the cable to the printer Make sure that the connector is aligned correctly Don t force it into the socket Your Epson dealer stocks a variety of cables as well as interface boards Figure ...

Page 21: ...inting smoothly for a long time Switches and Indicators The few switches and indicators on the P 80 require a brief explana tion so that you can have a better understanding of how to use them The printer does not have to be connected to your computer to test these switches The control panel The control panel switches are located on the top right comer of your printer Figure 2 l These switches cont...

Page 22: ... is stuck If either of these is stuck turn the power off and correct the problem The ribbon cassette should return to the starting position on the left side when you turn the power back on If you can not find anything wrong with the printer the blinking light is indicating that your battery is low Turn the power OFF and plug in the AC adapter as described later in this chapter PAPER FEED switch Th...

Page 23: ...en your paper reaches the end the ON LINE light goes off and printing stops To resume printing place another sheet of paper into the printer and press the ON LINE switch If you do not want to resume printing turn the power OFF and back ON again Each time the printer is turned ON it reinitializes resets to its settings at start up The Battery and AC Adapter Note Charge the battery with the AC adapt...

Page 24: ...C adapter connected without waiting for the battery to charge However when you are finished printing switch the power off and charge the battery for six to seven hours Once you unplug the adapter let the printer run on its own until it needs recharging Recharging the battery more often than needed can weaken it WARNING Do not charge the battery for more than 24 hours Also do not leave the power sw...

Page 25: ...h your Epson dealer To replace the battery follow the steps below 1 See that the power switch is OFF 2 Remove the two screws on the battery holder cover at the back of the printer by using a Phillips screwdriver Figure 2 4 Figure 2 4 Removing the screws 3 Carefully lift the battery holder cover by placing your index fingers at the top of the cover as shown in Figure 2 5 and your thumbs underneath ...

Page 26: ...ry holder cover open locate the battery connector near the POWER switch It is marked CN7 Unplug the battery connector noting the direction of insertion Remove the battery with a screwdriver as shown in Figure 2 6 Figure 2 6 Removing the battery 20 ...

Page 27: ...emove the front cover 7 Push the battery holder cover back into place at the back of the printer seeing that the tabs on each side are inside the cover and the switches and indicator light fit properly in their slots Figure 2 7 Figure 2 7 Replacing the battery holder cover 8 Replace the two screws at the back of the cover and replace the front cover WARNING Do not disassemble the battery or throw ...

Page 28: ...n particles and dust from the printer with a soft cloth or brush 3 Clean the outside of the printer with a mild cleanser when it appears dirty 4 If your printer is not operating correctly do not attempt to repair it yourself Take your printer to an authorized Epson dealer for serv ice Although your P 80 is solidly built it s not indestructible If you treat your printer with care it should give you...

Page 29: ...ssy side the side that is slightly darker If the glossy side is not facing the print head nothing prints Observe the following precautions in handling and storing thermal paper l Do not attach plastic adhesive tape to the paper l Handle the paper carefully so as not to bend or stain it Damaged areas may become discolored or fail to print l Do not store the paper in hot humid places cars heaters di...

Page 30: ...s as a paper release lever Notice the words FEED and FREE above and below the lever In the FEED position the roller inside the printer holds the paper and causes it to feed through the printer The FREE position allows you to make adjustments if the paper is not aligned correctly in the printer Paper Loading There are a couple of adjustments to make before loading your paper Check to see that the l...

Page 31: ...g the paper 4 Turn the manual feed knob clockwise until the paper feeds through to the front as shown in Figure 3 1 5 Put the power switch in the ON position if you have not done so already You are now ready to print 25 ...

Page 32: ...on t even need a computer to perform the self test Start by placing a sheet of 8 inch wide paper in your printer With the power OFF hold down the PAPER FEED switch and turn the power ON Release the PAPER FEED switch when the P 80 starts printing The characters will be printed as shown in Figure 3 2 The printer will continue indefinitely until you turn the power OFF or run out of paper Figure 3 2 T...

Page 33: ...g Note As mentioned in Chapter 1 the P 80 uses the RS 232C serial interface If your software asks for specifications you do not understand consult your dealer for assistance ASCII Codes Since there are many different kinds of computers and many different kinds of printers almost all computers use a standard set of codes to communicate with printers This set of codes is called the American Standard...

Page 34: ...set 128 to 159 Graphics character set In summary some ASCII codes produce standard characters and special symbols some produce graphics characters and others con trol the printer s functions Using Control Codes Most of the time you don t have to give this code system much thought When you are using a word processing system you press the letter A on the keyboard and the computer prints the letter A...

Page 35: ...e computer which code you want by inserting the number within the parentheses following the CHR Depending on the code you instruct your printer to print a character or perform a function such as execute a line feed or print italics The ESCape code So many features have been added to printers that even 256 ASCII codes are inadequate if only single code CHR instructions can be used Because of this t...

Page 36: ... with your computer s command conventions check its manual We use BASIC in the following programs since it is widely used in portable computers If necessary substitute the commands required by your computer Once you have discovered how your computer communicates with the printer using BASIC enter the following program lines into your computer 10 LPRINT CHR 27 1 20 LPRINT Underline Now list the lin...

Page 37: ...pe and run a new program NEW 10 FOR X 1 TO 41 LPRINT CHR 95 NEXT X 20 LPRINT CHR 13 30 LPRINT THIS PROGRAM USES THE UNDERLINE CHARACTER THIS PROGRAM USES THE UNDERLINE CHARACTER The printer s underline mode used in the example on the previous page provides you with an idea of how a programming language can be used There are many tutorial books available if you would like to learn more about using ...

Page 38: ... can be combined Dot Matrix Printing The P 80 uses a dot matrix to plot the characters it prints Vertically the matrix consists of 6 main and 5 intermediate columns Horizon tally the matrix consists of 9 rows The P 80 characters are designed to be five or fewer columns wide The sixth column is left blank to allow for space between text charac ters some of the graphics characters use the sixth colu...

Page 39: ... these inter mediate columns actually overlap with those in the main columns You can see this difference between the dots shown in Figure 5 l and the overlapping dots in Figure 5 2 An example of a print mode using overlapping dots is shown later in this chapter Figure 5 2 Overlapping dots Print Pitches There are two print pitches or widths available on the P 80 They are Pica and Compressed Pica is...

Page 40: ...IJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuv Figure 5 3 Comparison between print pitches Pitch Mode Combinations Expanded is a print mode that can be used with either Pica or Com pressed print pitches You can add this mode to your program to print out for one line only or for longer passages Expanded can also be used with most of the other modes Expanded mode Expanded mode doubles the width of the cur...

Page 41: ...ality differences Dress up Modes There are two more modes you can mix with any of the other modes to give your printouts a finished touch Italic and Underline Italic characters are printed in a typeface completely different from the more usual Roman characters Any computer system can select Italic mode without software adjustments The P 80 has a built in Underline mode making it easy for you to un...

Page 42: ...le 5 1 Summary of modes Emphasized Compressed Double strike Mixing Modes Not all mode combinations create conflicts You can combine most modes to produce the different typestyles shown in Table 5 2 at the end of this chapter Appendix B gives you the commands needed to instruct the printer to print any combination of these modes Summary Notes 1 Pica is the default pitch and is active when Compresse...

Page 43: ...will not mix with Compressed 7 Italics Underline and Expanded modes combine with any print mode Table 5 2 Typestyles Normal Print Single Strike Pica ABCD Single Strike Compressed ABCDEFG Single Strike Emphasized Pica ABCD Double Strike Pica ABCD Single Strike Expanded Pica Single Strike Expanded Compressed Single Strike Emphasized Expanded Pica Double Strike Expanded Pica A B A B C A B A B Italic ...

Page 44: ...ains this feature Graphics Characters The P 80 contains a set of special graphics characters which are the same graphics characters available on the GenevaTM PX 8 The graphics characters are accessed with ASCII codes 128 through 159 If your computer cannot access codes greater than 127 you will not be able to use the graphics characters To access the graphics characters in BASIC you use CHR n wher...

Page 45: ...s but do not run the program yet 10 LPRINT CHR 27 A CHR 7 CHR 27 E CHR 27 W1 20 READ R 30 IF R 0 THEN LPRINT CHR R GOTO 20 40 IF R 0 THEN LPRINT LPRINT CHR 27 END 50 IF R 1 THEN LPRINT GOT0 20 60 N R READ R FOR K 1 TO N LPRINT CHR R 70 NEXT K GOT0 20 Line 10 turns on Emphasized and Expanded Modes as well as special line spacing discussed later in this chapter The next six lines print graphics char...

Page 46: ...ical line Dot Graphics Think of your piece of paper as an artist s canvas waiting for the images you create With dot graphics you use dots instead of brush strokes to form your pictures and designs If you plan carefully where you want the dots to appear and use your computer to give the printer the proper instructions your P 80 will generate nearly any pattern or figure you wish Printing high reso...

Page 47: ... and n2 determine the number of columns reserved for graphics The format is the same as above for Double Density except you use CHR 27 L Column reservation numbers The graphics mode requires two numbers to specify how many columns of graphics you want because the CHR function in BASIC is limited to the numbers between 0 and 255 Since you can specify 480 dot positions in Single Density and 960 in D...

Page 48: ... remainder is the number to use for n Therefore n2 would be 1 and n1 would be 124 If fact you can have your program do the calculations for you with the following format LPRINT CHR 27 L CHR N MOD 256 CHR INT N 256 N is the total number of columns you want to specify The BASIC MOD modulus function calculates the value for n and the INT integer function calculates the value for n2 This format can be...

Page 49: ...Figure 6 1 Labelling elements Decimal sum of the desired pin pattern Figure 6 2 Element combinations 4 4 ...

Page 50: ...iate label numbers together you can fire any com bination of elements you want Note If your computer system cannot send ASCII codes above 127 you will not be able to fire the top element A Graphics Program Now that we have discussed how Dot Graphics works the follow ing program gives you an example of what you can do This program creates a series of space invaders Type the program in exactly as yo...

Page 51: ... of 1 with a remainder of 4 Enter 4 as the value for n and 1 as the value for n2 Enter these values with a comma between them The program then asks you how many data per space invader Enter 13 and press RETURN The program now asks the order of the data for a single invader The data numbers are shown at the bottom of Figure 6 3 Enter them one at a time pressing RETURN after each data number The pro...

Page 52: ...alues as character codes Graphics Programming Tips The information in this section will provide you with a few ele ments to keep in mind when programming in graphics Line spacing To print figures taller than 7 or 8 dots in Graphics mode the print head must make more than one pass If you use the default 12 dot 1 6 inch line spacing the print head will leave gaps between the graphics lines just as i...

Page 53: ...y number sent to the printer is interpreted by the P 80 as a dot pattern and is printed on the paper Therefore you must be careful where you put the graphics command in your program and you must not put another command between the graphics command and the graphics data For example suppose you want to print a 50 column graphics line and you want to set the line spacing to o dot for future additions...

Page 54: ...ecuted After the P 80 has received all the numbers that are reserved by the graphics command 50 in this case it leaves the Graphics mode and resumes interpreting numbers in the normal way Because the incor rect program has sent many extra numbers mainly 10s and 13s the 50 reserved columns are filled before the loop in line 30 has been executed 50 times Therefore during the last passes of the loop ...

Page 55: ...l Do not put any other commands between the graphics command and its data We hope this example helps you identify errors if one of your own programs gives you unexpected results 50 ...

Page 56: ...onal characters available on the P 80 and their corresponding ASCII codes The international characters can be selected by changing the DIP switches as mentioned in Chapter 1 or they can be selected by using ESC R see Appen dix B The second section also shows the graphics character set The graphics character set occupies ASCII positions 128 through 159 Included in the second section are some specia...

Page 57: ...6 37 38 39 3A 3B 3C 3D 3E 3F 40 41 42 43 44 45 46 47 Abbreviation DC4 ESC SP Control key Control T Control Decimal 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 Hexadecimal Character 48 49 4A 4B 4C 4D 4E 4F 50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5D 5E 5F 60 61 62 63 64 65 66 67 68 69 6A 6B 6C 6D 6E H I J K L M N O P ...

Page 58: ...112 70 113 71 114 72 115 73 116 74 117 75 118 76 119 77 Character o p q r s t u V W International Characters Decimal Hexadecimal Character 120 78 x 121 79 y 122 7A z 123 7B 124 7C 125 7D 126 7E 127 7F none Graphics Characters A 3 ...

Page 59: ...Special Characters A 4 ...

Page 60: ...ed by CHR n where n is a number from the decimal DEC column below For a few codes those with a dash in the ESC column you omit the ESC code CHR 27 The ESC sequence may be shortened by using in quotation marks the character in the symbol column instead of CHR n For example the command for turning on Emphasized can be entered as LPRINT CHR 27 CHR 69 or LPRINT CHR 27 E If you are using another progra...

Page 61: ...e length of the line Can be cancelled by CHR 20 or CHR 27 WO Works with Pica or Compressed mode Shift in Empties the buffer and turns Compressed mode 17 16 cpi ON Cannot work with Emphasized or Double Strike mode Device control 2 Turns Compressed mode OFF Device control 4 Turns the Expanded mode set by CHR 14 OFF Can also be cancelled with LF ESCape Prepares the printer to receive control codes Tu...

Page 62: ...ne spacing to n 72 inch n dot Format CHR 27 A CHR n where n 0 127 Sets the form length to n lines in the current line spacing The default is 66 lines Also resets top of form Format CHR 27 C CHR n where n 1 127 Sets the form length to n inches regardless of the current line spacing The default is 11 inches Also resets top of form Format CHR 27 C CHR 0 CHR n where n 1 22 Turns Emphasized mode ON Can...

Page 63: ... of dot columns n1 n MOD 256 n2 INT n 256 For example to print 960 dots n1 192 n2 3 ESC 82 52 R Selects an international character set by its country s number Format CHR 27 R CHR n where n 0 7 ESC 87 57 W Turns Expanded mode ON stays ON until turned OFF Cannot be turned off with CHR 20 Format CHR 27 W CHR n where n toggles the mode on and off 0 or 48 turns it OFF 1 or 49 turns it ON B 4 ...

Page 64: ...Compressed Mode OFF CHR 14 Turns One Line Expanded Mode ON CHR 20 Turns One Line Expanded Mode OFF CHR 27 W0 Turns either Expanded Mode OFF CHR 27 W1 Turns Continuous Expanded Mode ON Character Weight CHR S 27 E Turns Emphasized Mode ON CHR 27 F Turns Emphasized Mode OFF CHR 27 G Turns Double Strike Mode ON CHR 27 H Turns Double Strike Mode OFF Print Enhancement CHR 27 0 Turns Underline Mode OFF C...

Page 65: ...h default CHR 27 A CHR n Sets line spacing to n 72 inch CHR 27 3 CHR n Sets line spacing to n l inch Forms Control CHR 9 or CHR 137 Activates a horizontal tab CHR 12 Produces a form feed CHR 13 Produces a carriage return CHR 27 C CHR 0 CHR n Sets the form length in inches CHR 27 C CHR n Sets the form length in lines Dot Graphics CHR 27 K CHR n1 CHR n2 Turns Single Density Graphics Mode ON CHR 27 L...

Page 66: ...found in their accompanying documenta tion Check the index under printing for the appropriate pages P 80 and WordStar To print the desired results from some of these programs such as WordStar some modifications may be necessary For example the P 80 stops printing when no paper is in contact with the paper out sensor a reed switch located on the paper guide The paper out sensor keeps the printer fr...

Page 67: ...neva Portable WordStar Refer ence Manual Be sure to line the top of your sheet of paper with the serrated edge on the printer as the printer expects 66 print lines the default in WordStar If a particular function exists on WordStar but not on the P 80 the printer will ignore the command to execute this function For exam ple if you want to print in Elite the P 80 will ignore this command since it d...

Page 68: ...nd it is ON and on line before you begin to print If the P 80 won t respond to any of the computer s print commands hold down CTRL and press STOP on the Geneva Then check to see that you have the proper serial port connection the cable is connected correctly and the printer is ON and on line D 3 ...

Page 69: ...eed Character Sets Thermal transfer Unidirectional left to right 2 lines per second at 1 6 inch line 96 Roman characters 96 Italic characters 32 Graphics characters 8 International character sets Line Spacing 1 6 inch default 1 8 inch or programmable in increments of 1 72 inch and 1 144 inch E l ...

Page 70: ... 10 5 10 5 17 1 7 8 4 7 10 5 10 5 17 1 7 8 4 7 Print speed CPS 45 22 5 22 5 11 25 38 6 19 3 22 5 11 2 22 5 11 25 38 6 19 3 Character spacing CPI 10 5 5 5 17 1 7 8 4 7 10 5 10 5 17 1 7 8 4 7 size in Width 083 166 091 182 043 083 110 193 118 209 079 110 Height 096 096 096 096 096 096 096 096 096 096 096 096 Thermal or Standard Printer Dimensions Height 2 inches 62 2 mm Width 11 inches 297 mm Depth 4...

Page 71: ...ly 20 pages with 2 000 characters per page Printer MCBF 500 000 lines excluding print head life Print head life 20 million characters Buffer memory 240 bytes Interface The P 80 has an RS 232C serial interface Specifications Bit rate Synchronization Handshaking Logic Levels Data Format Interface Connector Plug Set with DIP switches on the back of the printer Asynchronous With DTR signal Voltage Log...

Page 72: ...Interface Signals E 4 ...

Page 73: ...ry replacement 19 22 Bold printing See Double Strike Emphasized C Cable connection of 13 Carriage return 28 29 B 2 C 2 Cassette ribbon See Ribbon cassette Characters graphics See Graphics characters Characters international See International character set Characters specifications of E 2 CHR 29 39 Codes See ASCII codes Control codes ESCape Compressed mode 34 35 37 B 2 C l Computer connecting print...

Page 74: ...l Environment of printer E 3 Epson computers See Geneva PX 8 ESCape code ESC 29 30 B 2 Expanded mode 35 37 40 B 2 B 4 C l F FEED 5 24 Foreign characters See International characters Form length of B 3 C 2 Form feed B 2 C 2 FREE 5 24 26 Front cover 5 7 Function switches See DIP switches G Geneva PX 8 39 D l D 3 connecting to printer D 2 Graphics characters 39 41 command placement 48 50 densities in...

Page 75: ...nter cable 12 13 ribbon cassette 7 9 Interface E 3 connector E 3 signals E 4 specifications E 3 International character set 10 11 A l A 3 B 4 C 2 INVOICE 6 Italic mode 36 38 B 3 C 2 K Knob See Manual feed knob L LEFT EDGE 6 Lever lock 5 24 paper release 24 Lids See Covers Light ON LINE 16 Line feed B 2 automatic 11 Line spacing B 2 B 3 C 2 LIST command 30 LPRINT See PRINT Loading paper 24 25 Lock ...

Page 76: ...Paper coarse 24 loading 24 placement 24 roll paper 24 E 2 sizes 24 thermal 7 23 types 23 widths 6 Paper control switches 16 PAPER FEED switch 16 26 Paper guide 5 6 Paper holder 6 right 24 Paper out sensor 17 D l D 2 Paper release lever See Lever PAPER STAND 6 metal 6 PAPER SURFACE switch 17 24 Pica mode 34 35 40 Pin combinations 44 45 Pin labels 43 44 Pitch 34 35 Plastic paper holder 6 left 6 righ...

Page 77: ... l Print head 9 and dot graphics 41 43 life of E 3 Print modes 33 36 See also specific print mode Print typestyles D 2 Print width See Characters specifications of Printer parts 3 4 Printer preparation 3 Priorities See Modes priorities R Reset code B 3 Ribbon cassette 7 9 16 23 installation 7 ...

Page 78: ...E 2 interface E 2 E 4 paper E 2 printer E 2 E 3 printing E I Temperature of printer 22 E 3 Test See Self test Typestyles chart D 2 U Underline mode 30 36 38 B 2 C l W Weight of printer E 2 Width See Characters specifications of statement 48 Index 6 ...

Page 79: ......

Page 80: ... 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 35 36 37 38 39 3A 3B 3C 3D 3E 3F 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5D 5E 5F 60 61 62 63 64 65 66 67 68 69 5 6 7 8 9 A B C D E F G H I J K L U N 0 P Q R S T U V W X Y Z Dec Hex 106 6A 107 6B 108 6C 109 6D 110 6E 111 6F 112 70 113 71 114 72 115 73 116 74 117 75 118 76 119 77 120 78 121 79 1...

Page 81: ...nd Character Set Selection CHR 27 4 Turns Italic Mode ON CHR 27 5 Turns Italic Mode OFF CHR 27 Reset Code CHR 27 R CHR n Selects an international character set Line Spacing CHR 27 0 Sets line spacing to l 8 inch CHR 27 2 Sets line spacing to l 6 inch default CHR 27 A CHR n Sets line spacing to n 72 inch CHR 27 3 CHR n Sets line spacing to n 144 inch Forms Control CHR 9 or CHR 137 Activates a horiz...

Page 82: ...teries not supplied by Epson or by accident misuse neglect or improper packing shipping modification or servicing by other than Epson or an authorized Epson Service Center SOME EPSON PRODUCTS HAVE A COMPARTMENT CONTAINING STATIC SENSITIVE ELECTRONIC CIRCUITRY THIS COMPARTMENT IS CLEARLY LABELED DO NOT OPEN IT THIS WARRANTY WILL BECOME VOID IF YOU ATTEMPT TO MODIFY OR ADJUST ANY ROM OR OTHER PART O...

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