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Delete

This command deletes the last character sent to the printer. It will not delete graphics data, nor will it 
delete a horizontal tab or skip. Control codes are not affected. If the justification is set for other than left 
margin justification, the delete command will be ignored. 

                                                                                                                                                

ML 380 ( 96-02-03 )

Summary of Contents for ML380

Page 1: ...Chapter 0 Front Cover Microline 380 Printer Handbook ML 380 96 02 03...

Page 2: ...t also explains the printers control codes and how to use them Heres how its organized Chapter 1 Setup gives you the basics how to get your printer ready to operate how to make the connections and how...

Page 3: ...ntain the following items 1 Printer 2 Paper Separator 3 Platen Knob 4 Ribbon 5 Grounding Screw Note You must purchase a computer interface cable and paper separately If you are missing any of these it...

Page 4: ...le printer A serial interface is also required if the printer is to be placed more than 10 feet from the computer The following table summarizes the difference between the two types of interface Paral...

Page 5: ...g from the printer 2 Make sure the printer is unplugged and the computer is turned off 3 Turn the printer over and place it gently on a sturdy flat surface 4 Locate the parallel interface connector an...

Page 6: ...er When properly installed the paper separator will swing up and rest in the top well on the printer for use in single sheet feed and will swing down and rest in the bottom well for use with continuou...

Page 7: ...en the bail rollers Note The printhead gets HOT during extended printing Be sure to let it cool before you touch it 3 Hold the ribbon cartridge with the knob facing up and the ribbon shield facing awa...

Page 8: ...rs could damage the printhead Please also note that while ribbon cartridges for other MICROLINE printers look similar they will either not fit the ML380 or they will give poor print quality because th...

Page 9: ...the printhead away from the left end of the platen Note The printhead gets HOT during extended printing Be sure to let it cool before you touch it 4 Pull the bail lever forward to raise the bail off t...

Page 10: ...used with single sheets forms continuous form paper and envelopes It can also be used to print labels but the labels must be fed in from the bottom requiring the optional pull tractor see page 33 Bott...

Page 11: ...slide down into the wells on the printer 3 Reach behind the left paper guide grasp the paper support arm and swing it up into place 4 Place a sheet of paper in the separator and slide the paper guide...

Page 12: ...et of paper into the printer and the select light will go out 6 Push the bail lever back The SELECT light will automatically come back on and glow continuously to indicate that the printer is selected...

Page 13: ...n the TOF PARK button and press FEED To move the paper down hold down the TOF PARK button and press FONT This moves the paper in very fine increments 1 180 inch so you can position the location of you...

Page 14: ...do so it s easier to install continuous form paper from the rear if you first remove the paper separator 2 Make sure the paper selection lever is forward 3 Release the tractor lock levers by pulling u...

Page 15: ...g the paper separator back to the continuous form position and slide the paper guides out as far as they ll go 9 Press the TOF PARK button to position the paper properly for automatic feed 10 Pull the...

Page 16: ...own the TOF PARK button and press FEED To move the paper down hold down the TOF PARK button and press FONT This moves the paper in very fine increments 1 180 inch so you can position the location of y...

Page 17: ...uld only be fed into the printer from the bottom This prevents the labels from peeling off and jamming the printer 1 Follow steps 1 through 10 above for loading rear feed paper with the built in tract...

Page 18: ...paper selection lever forward to the continuous form position to re engage the built in tractor 11 Push the bail lever back to place the bail against the platen 12 Close the access cover and press th...

Page 19: ...inter SELECT light goes out 2 Use the platen knob to move the paper to the position you want for top of form The lower red line on the paper shield serves as a guideline_it shows the baseline of the c...

Page 20: ...t 2 Turn the printer OFF 3 Make sure the paper selection lever is forward continuous form position 4 Open the access cover and pull the bail lever forward 5 Feed the paper into the printer through the...

Page 21: ...levers back to lock them in place 11 Push the bail lever back and close the access cover 12 Turn the printer ON and press the SELECT button to deselect it 13 Press and hold the FEED button to form fe...

Page 22: ...CT light goes out 2 Use the platen knob to move the paper to the position you want for top of form The lower red line on the paper shield serves as a guideline_it shows the baseline of the current pri...

Page 23: ...nal pull tractor installed To park continuous form paper 1 Tear off any printed pages 2 Make sure the printer is selected SELECT light on If its not press the SELECT button 3 Press the TOF PARK button...

Page 24: ...he printer in the Menu mode The SELECT light will go off and Menu Mode will print 3 Press the GROUP button until the following line prints out Vertical ControlLine Spacing 6 LPI 4 Press the ITEM butto...

Page 25: ...ML 380 96 02 03...

Page 26: ...ASCII Test which gives a continuous sample of the default print style You can run the tests any time you want to make sure the printer is functioning properly Each time you run a self test ML380 will...

Page 27: ...e of the print styles available When the test is complete prints about two pages the printer will stop and the SELECT light will come on If you wish to stop the printer before it has completed the Fon...

Page 28: ...g ASCII Test To print the Rolling ASCII Test hold down the TOF PARK button while turning on the printer ML380 will print a continuous sample of the default print style and will keep printing until you...

Page 29: ...erial interface adapter If youll be using single sheet feed on a regular basis youll want to install the optional cut sheet feeder which automatically feeds sheets of standard letter size or legal siz...

Page 30: ...sure the Form Tear Off feature is turned off in the menu before installing and using this option 1 Turn the printer OFF 2 Make sure the bail lever is in the forward position and the paper separator i...

Page 31: ...ng the tractor until the tractor pins engage the notches at either end behind the platen 6 Swivel the tractor unit forward until the clips at either end clamp onto the platen shaft 7 Install the pull...

Page 32: ...e side of the printer housing When you are through installing the serial interface adapter the serial interface connector will be located here 4 Turn the printer over and place it gently on a sturdy f...

Page 33: ...t and the hole in the metal tab will align with the screw hole on the printer housing 9 Secure the adapter in place by installing the grounding screw in the metal tab 10 Enter the Menu Select mode see...

Page 34: ...ent straight from the panel Using the Menu Select mode_entered directly from the panel_you can alter the default settings of other features The defaults are those characteristics set automatically whe...

Page 35: ...s button to select or deselect the printer SELECT light is ON or OFF If you hold down this button and the FEED button while turning on the printer it will reset the printer menu to the factory setting...

Page 36: ...f only one light is glowing then the font associated with it is engaged Courier Roman or Prestige If two lights are glowing then the font between them is engaged Swisst Orator or Gothic For example Wh...

Page 37: ...lections see Appendix B You can override features set on the menu using either the front panel or commands sent from your computer However when you turn off the printer features set by those methods w...

Page 38: ...bon and paper and that it is turned off 2 Hold down the FONT button while turning the printer on The POWER light will come on SELECT light remains off and Menu Mode will print You can then proceed to...

Page 39: ...at you print out the menu whenever you change it to keep for reference 5 EXIT Button Push this button to exit the Menu Select Mode and return the printer to the Print Mode Example If you are in the Me...

Page 40: ...tton once to change the setting from Off to On ML380 will print Vertical Control Form Tear Off On You have now engaged the Form Tear Off feature If youre through making menu changes simply press the E...

Page 41: ...sy signal when the printer is operating in the serial mode Choose from SSD pin 11 SSD pin 11 DTR pin 20 or RTS pin 4 Busy Time Serial interface Sets busy signal timing Character Set Choose IBM Charact...

Page 42: ...will be using The printer uses this setting to keep track of the initial printing position on each page top of form Paper Out Override The paper out detector senses when less than one inch of paper r...

Page 43: ...serial interface data format of 7 bits or 8 bits Size Choose Single or Double width and height Skip Over Perforation Choose Yes if you want the printer to advance automatically to the next page when i...

Page 44: ...d between words and the size of the characters There are generally several fonts within a type family whose characters are similar in shape but differ in thickness angle or style For example many type...

Page 45: ...ll as in proportional For each type family and size you can use any combination of the following characteristics Regular Italics Emphasized Enhanced Double Height Double Width Outline Shadow The easie...

Page 46: ...le featuring plain letters without the hairline extensions serifs It is recommended for headlines but can also be used for text Orator is basically a sans serif type style but it does include serifs i...

Page 47: ...fessional typeset look in your document use the proportional pitch setting With proportional printing narrow letters like i and l take up less width than wide letters like w and m The smaller type siz...

Page 48: ...ts of emphasized enhanced equivalent to bold face type outline shadow double height and double width printing which can be applied to either regular or italic type in any combination you like to produ...

Page 49: ...sage Worse yet it can be so discouraging to readers that they just skip over it entirely 2 Give the proper respect to each element on the page Titles and headlines should be printed in large bold face...

Page 50: ...PRINT 1 A line of text Like the LPRINT command PRINT 1 automatically moves the print position to the next line unless you use a semicolon after the data When you send an LPRINT statement the text betw...

Page 51: ...a photo in a newspaper you ll notice that it s made up of thousands of tiny dots You can use your ML380 printer to print similar dot graphics Your ML380 printhead has two columns of 12 pins for a tota...

Page 52: ...embed extra commands in a document you ll find the necessary information here Even if you just use the front panel to control your printer the explanations of the features and how they work will be he...

Page 53: ...Letter Gothic typeface in 10 12 15 17 or 20 cpi pitch It will not print in any of the other typefaces nor will it print in the proportional spacing pitch If you wish to select one of the other typefa...

Page 54: ...lecting fonts including type samples Typeface can also be selected using the front panel controls or the Menu Select Mode As we go to press special ML380 drivers are being developed for use with Micro...

Page 55: ...nd emphasis to phrases sentences or entire paragraphs If you intend to print an entire document in italics you may choose to select this printing style in the Menu Select Mode You can also use the ESC...

Page 56: ...dots are offset horizontally In enhanced printing the dots are printed on top of each other You can use a combination of both emphasized and enhanced printing to produce an even bolder effect For hea...

Page 57: ...ore interesting and stylish headings They can be combined together as well as with emphasized and or enhanced printing double width etc for an even more striking effect Outline and shadow can only be...

Page 58: ...he basic pitches listed above to produce a range of character widths See the Character Width Values table below for all possible widths Pitch can also be set using the front panel controls or in the M...

Page 59: ...Character Width Values Character Width Values ML 380 96 02 03...

Page 60: ...printing command will produce 17 1 cpi printing If the current pitch is 12 cpi the compressed printing command will produce 20 cpi printing When you send the DC2 command the printer will return to wh...

Page 61: ...they turn off the double width printing automatically at the end of the line If you want to cancel one line double width printing before the line ends send the command DC4 or ESC W 0 You can also canc...

Page 62: ...al height characters on the same baseline Double height can be combined with double width and emphasized printing for an even more striking effect It can be used for LQ printing utility printing and f...

Page 63: ...e the normal print line and are used for exponents footnotes and other special typographic effects x2 Subscripts are handy for chemical formulas H2 O Both are printed in a smaller size than standard c...

Page 64: ...he impression of a typeset document and is more attractive and easier to read than fixed space printing Proportional spacing is available only with LQ printing it can t be used for utility printing Be...

Page 65: ...ht of each character This value n is expressed in dots The number of dots per inch dpi depends on the current print mode in utility mode there are 120 dpi in LQ mode there are 360 dpi If you use doubl...

Page 66: ...rlining will print at the same time the character is printed This command will not underline spaces produced by the horizontal position commands see page 93 nor will it underline bit image or line dra...

Page 67: ...printing Use unidirectional printing when precise vertical alignment from line to line is critical such as when printing high resolution graphics If you use the one line unidirectional printing comma...

Page 68: ...the value for emphasized printing to 193 and send the command ESC 201 If you send the command ESC 8 you would turn on the emphasized printing but at the same time you would be turning off all the oth...

Page 69: ...es You can print these symbols both in the normal and the italics print mode To access these character sets replace n with the appropriate value from the table The character set will automatically rev...

Page 70: ...When transferring the custom characters this command copies them from the lower ASCII set where you have them stored to a comparable location in the upper ASCII set For example it would copy the cust...

Page 71: ...e is that in Set II decimal values 3 to 6 21 and 128 to 159 represent printable characters while in Set I these positions are either occupied by control codes or are unused Refer to Appendix A for the...

Page 72: ...itch until you specifically reset the margin This saves you the work of adjusting margins with every pitch change in your document The table Range of Margin Settings below gives the column setting ran...

Page 73: ...printer adds space as needed to align the text with both margins Or you can set the text for center justification which will center the text on the page When you re using right full or center justifi...

Page 74: ...rent character width Be sure to give the stops in ascending order and after you have specified all the stops end the sequence with a NUL character use CHR 0 in BASIC If you send the command ESC D NUL...

Page 75: ...vertical tab stops each set called a channel You can set up to 16 stops per channel This command works similarly to the ESC B n1 nk NUL command above except that you also have to specify which channe...

Page 76: ...ML 380 96 02 03...

Page 77: ...er pitches and lets you fit more lines on a page The ESC 3 n command sets the line spacing in increments of as little as 1 180 inch The ESC A n command sets the line spacing in increments as little as...

Page 78: ...mount of vertical movement depends on the current line spacing see above This command also cancels one line double width printing Use the ESC J n command to execute fine line feeds in increments of 1...

Page 79: ...h SOH ASCII or 27 36 104 01 decimal For values above 99 you can use hexadecimal for n1 in this case n1 would be 68 hexadecimal The ESC n1 n2 command lets you move the print position to either the rig...

Page 80: ...ots per inch in the LQ print mode is 180 Multiply 2 inches by 180 dots per inch to obtain 360 dots Subtract this from 65 536 to produce 65 176 Divide this by 256 this yields a value of 254 for n2 and...

Page 81: ...80 prints any data that is in its buffer executes a carriage return and moves the printhead to the next top of form position This command also cancels one line double width printing You can also use t...

Page 82: ...form length and then use one of the form length commands whenever you want to change it temporarily When you use either of these commands to change the form length the skip over perforation setting re...

Page 83: ...ine spacing however after you ve set the skip size it won t increase or decrease if you change line spacing The ESC O command returns the perforation skip to its default You can also use the ESC reset...

Page 84: ...ion If paper is already in the printer the printer will eject the page and load another sheet Any data that is in the print buffer when this command is received will print before the paper is ejected...

Page 85: ...iables first determine how many columns of dots there will be in your graphics image Divide this number by 256 assign the whole number result to n2 and assign the remainder to n1 When calculating the...

Page 86: ...e the ESC K ESC L ESC Y or ESC Z command to be any of the eleven possible ESC m n1 n2 commands The m designates which command K L Y or Z will be changed The n designates which ESC m n1 n2 command it w...

Page 87: ...s some work on your part and can become tedious Once again we strongly recommend using a commercial software package to help you create new characters and download them to your printer There are also...

Page 88: ...UL n1 n2 d0 d1 d2 command to begin downloading a custom character The variables n1 and n2 represent the decimal values for the regular characters being replaced by custom characters If you re download...

Page 89: ...ves the printhead one character to the left The actual width of the backspace depends on the current pitch If you re using proportional spacing the BS command moves the printhead 1 10 inch to the left...

Page 90: ...ill print data from the print buffer and return the printing position to the beginning of the line If the Auto Line Feed item is On factory default is Off in the menu the printer will add a line feed...

Page 91: ...Clear Buffer Clear Buffer This command clears all the data from the print buffer but does not reset the printing features that have been set using control codes ML 380 96 02 03...

Page 92: ...ter sent to the printer It will not delete graphics data nor will it delete a horizontal tab or skip Control codes are not affected If the justification is set for other than left margin justification...

Page 93: ...command sets the most significant bit MSB of an 8 bit data input to 1 The ESC command sets the MSB to 0 The ESC command cancels MSB control established by either of these commands and all data is int...

Page 94: ...de DC3 19 End print suppress mode DC1 17When the printer receives the command to begin Print Suppress mode it ignores all data until it receives the DC1 code This means that any data received after th...

Page 95: ...g This is done to make sure that settings from a previous print job don t accidentally carry over into the next one However this could interfere with settings you have made on the control panel or thr...

Page 96: ...ery six months or after about 300 hours of operation To do this turn the printer OFF and use a clean dry cloth to dust the area around the carriage shaft and platen Be sure to remove any loose particl...

Page 97: ...oaded squarely onto the tractors if the sprocket holes are out of sync on either side the paper will jam If the paper does jam back it out of the printer carefully using the platen knob Be sure to rem...

Page 98: ...on the front panel are lit The lights in the FONT indicator on the front panel all go out when the printer is operating in the utility mode The lights will come on again as soon as you select an LQ f...

Page 99: ...except the characters in red which print ony when IBM Character Set II is selected Hex Dec Character Width 00 0 NUL 01 1 SOH 02 2 STX 03 3 ETX 04 4 EOT 05 5 ENQ 06 6 ACK 07 7 BEL 08 8 BS 09 9 HT 0A 1...

Page 100: ...30 Hex Dec Character Width 21 33 18 22 34 30 23 35 30 24 36 30 25 37 36 26 38 36 27 39 18 28 40 24 29 41 24 2A 42 30 2B 43 30 2C 44 18 2D 45 30 2E 46 18 2F 47 30 30 48 0 30 31 49 1 30 32 50 2 30 33 51...

Page 101: ...Dec Character Width 42 66 B 36 43 67 C 36 44 68 D 36 45 69 E 36 46 70 F 36 47 71 G 36 48 72 H 36 49 73 I 24 4A 74 J 30 4B 75 K 36 4C 76 L 36 4D 77 M 42 4E 78 N 36 4F 79 O 36 50 80 P 36 51 81 Q 36 52...

Page 102: ...61 97 a 30 62 98 b 36 63 99 c 30 64 100 d 36 65 101 e 30 66 102 f 24 67 103 g 36 68 104 h 36 69 105 i 18 6A 106 j 24 6B 107 k 36 6C 108 l 18 6D 109 m 42 6E 110 n 36 6F 111 o 30 70 112 p 36 71 113 q 3...

Page 103: ...79 121 y 36 7A 122 z 30 7B 123 m 24 7C 124 0 18 7D 125 24 7E 126 30 7F 127 DEL ML 380 96 02 03...

Page 104: ...for any particular italics character simply locate that character in the lower ASCII character set on the preceding two pages and add 128 to the decimal value For example the upper ASCII decimal valu...

Page 105: ...ML 380 96 02 03...

Page 106: ...Superscript Subscript Characters Superscript Subscript Characters ML 380 96 02 03...

Page 107: ...ML 380 96 02 03...

Page 108: ...e No Yes Print Registration 0 1 2 3 4 5 5 4 3 2 1 Operator Panel Functions Full Operation Limited Operation Interface Parallel Serial Vertical Control Line Spacing 6 LPI 8 LPI Form Tear Off Off On Ski...

Page 109: ...ata 7 or 8 bits 8 7 Protocol Ready Busy X ON X OFF Diagnostic Test No Yes Busy Line SSD SSD DTR RTS Baud Rate 9600 BPS 4800 BPS 2400 BPS 1200 BPS 600 BPS 300 BPS 19200 BPS DSR Signal Valid Invalid DTR...

Page 110: ...07 48 1B 6B 31 70 Select Courier typeface default ESC k 2 27 107 50 1B 6B 32 70 Select Prestige typeface ESC k 3 27 107 51 1B 6B 33 70 Select Letter Gothic typeface ESC k 0 27 107 124 1B 6B 7C 70 Sele...

Page 111: ...ESC M 15 27 77 0F 1B 4D 73 Character Size Compressed Begin compressed printing SI or ESC SI 15 or 27 15 0F or 1B 0F 75 End compressed printing DC2 18 12 75 Character Size Double Width Double width pr...

Page 112: ...ng ESC n n 1 begin underlining n 0 end underlining 27 45 n 1B 2D n 79 Print Features Unidirectional Printing Unidirectional printing ESC U n n 1 begin unidirectional printing n 0 end unidirectional pr...

Page 113: ...characters 27 116 n 1B 74 n 84 Character Sets IBM Sets I and II Select IBM Character Set I ESC 6 27 54 1B 36 85 Select IBM Character Set II ESC 7 27 55 1B 37 85 Page Setup Left and Right Margins Set...

Page 114: ...1 nk 0 1B 42 n1 nk 00 89 Select vertical tab channel ESC n n 0 to 7 number of tab channel 27 47 n 1B 2F n 89 Set vertical tabs for channel n ESC b n m1 mk NUL n 0 to 7 channel number m 0 to 255 tab st...

Page 115: ...to default ESC O 27 79 1B 4F 96 Cut Sheet Feeder Control Insert page ESC EM I 27 25 73 1B 19 49 97 Eject page ESC EM R 27 25 82 1B 19 52 97 Bit Image Graphics Begin single density graphics ESC K n1 n2...

Page 116: ...set ESC n n 1 custom character set n 0 standard character set 27 37 n 1B 25 n 101 Copy ROM characters to RAM ESC NUL n NUL n 0 Roman n 1 Swiss n 2 Courier n 3 Prestige n 0 Gothic n Orator 27 58 00 n...

Page 117: ...1B 3E 106 Set 8th data bit to 0 ESC 27 61 1B 3D 106 Reset 8 Bit Mode ESC 27 35 1B 23 106 Miscellaneous Print Suppress Begin print suppress mode DC3 19 13 106 End print suppress mode DC1 17 11 106 Mis...

Page 118: ...75 DC3 19 13 Begin print suppress mode 106 DC4 20 14 End one line double width printing 75 DEL 127 7F Delete one character 105 ESC 0 27 48 1B 30 Begin 1 8 inch line spacing 91 ESC 2 27 50 1B 32 Begin...

Page 119: ...ESC K n1 n2 graphics data 27 75 n1 n2 graphics data 1B 4B n1 n2 graphics data Begin single density graphics 98 ESC l n 27 108 n 1B 6C n Set left margin 85 ESC L n1 n2 graphics data 27 76 n1 n2 graphi...

Page 120: ...de combinations 81 ESC 27 64 1B 40 Reset 107 ESC 27 35 1B 23 Reset 8 Bit Mode 106 ESC n1 n2 27 36 n1 n2 1B 24 n1 n2 Absolute horizontal dot position 93 ESC n 27 37 n 1B 25 n Select custom character se...

Page 121: ...n Reassign graphics codes 98 FF 12 0C Form feed 95 HT 9 09 Horizontal tab 87 LF 10 0A Line feed 92 SI 15 0F Begin compressed printing 75 SO 14 0D Begin one line double width printing 75 VT 11 0B Verti...

Page 122: ...face cable that connects your printer to your computer This requires some knowledge of electronics_signals wiring soldering and crimping_to be designed properly If youre not technically oriented we re...

Page 123: ...with the following Amphenol 57 30360 or AMP 552274 1 plug or equivalent with 36 pins AMP 552073 1 or equivalent cover Beldon or equivalent shielded cable with twisted pair conductors It can t exceed...

Page 124: ...To Printer 5 Data 4 23 To Printer 6 Data 5 24 To Printer 7 Data 6 25 To Printer 8 Data 7 26 To Printer 9 Data 8 27 To Printer 10 Acknowledge 28 From Printer 11 Busy 29 From Printer 12 Paper end 30 Fr...

Page 125: ...em is set to Valid the signal on pin 14 controls automatic line feed low auto line feed Pin 18 is controlled by the menu item Pin 18 Output in the Parallel Interface group The factory setting for this...

Page 126: ...RS232 C serial configuration you will need DB 25P equivalent 25 pin plug shell equivalent to DB C2 J9 Beldon or equivalent shielded cable with twisted pair conductors Must be UL and CSA approved The...

Page 127: ...und PG _ 2 Transmitted data TD From printer 3 Received data RD To Printer 4 Request to send RTS From Printer 5 Not used _ _ 6 Data set ready DSR To Printer 7 Signal ground SG _ 8 10 Not used _ _ 11 Su...

Page 128: ...st connector 4 Turn the printer on This will start the test The following will happen as the test proceeds First the printer will check the memory function and the signal logic If both are functioning...

Page 129: ...the printer Then change the setting for the item Diagnostic Test in group Serial Interface back to No If you dont each time you turn the printer off then back on again it will enter the test mode ML 3...

Page 130: ...TBF 4000 hours Mean Time to Repair MTTR 15 minutes Printhead life 200 million characters average in 10 cpi utility mode Ribbon life 2 million characters average in 10 cpi utility mode Electrical chara...

Page 131: ...ns 5 8 127 203 mm maximum detached Cut sheets single part only fed in from paper separator Weight 14 to 22 lbs Thickness 0 0028 to 0 0039 0 07 to 0 1 mm Dimensions 7 2 to 10 182 to 254 mm wide 10 1 to...

Page 132: ...Specifications subject to change without notice ML 380 96 02 03...

Page 133: ...lever A lever generally on the left side of the printer with the printer facing you that serves to raise and lower the paper bail Baseline For a printed character the line on which the character sits...

Page 134: ...densed A printing style in which the characters are very narrow It is generally used for printing material that is too wide for conventional type Continuous forms Paper with pin feed holes along the s...

Page 135: ...OM Firmware is different from software because the user cant change it Font A set of characters having a distinctive style of printing characteristics These printing characteristics include the actual...

Page 136: ...and a printer The two basic types of interfaces are parallel and serial The word is loosely used to mean either the method of connection or the actual hardware used to connect equipment As a verb it...

Page 137: ...d fastest connection for a printer Pica 10 cpi printing Platen The rubber coated roller on the printer which both brings paper into the machine and serves as a backing for the striking action of the p...

Page 138: ...A serial connection or interface is one in which data is sent one bit at a time This type of connection is generally used in data communications and on networks It is slower than a parallel connection...

Page 139: ...rear Pull tractors are optional accessories which mount on top of the printer and are driven by the printers gears They are positioned after the platen in the drive path and pull the paper around the...

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