Epson LQ-2550 Product Information Guide
Contents
1. 8 35 Esc 43 2B Select n 360 inch line spacing 16 ESC 45 2D Turn underlining on off 8 29 ESC 47 2F Select vertical tab channel 8 18 Esco 48 30 Select 1 8 inch line spacing amp 15 ESC 2 50 32 Select 1 6 inch line spacing 8 15 ESC 3 51 33 Select n 180 inch line spacing 815 ESc4 52 34 Select italic mode 831 ESC 5 53 35 Cancel italic mode 004 8 32 ESC 6 5436 Enable printable characters 8 33 ESC7 55 37 Enable upper control codes 8 34 ESC 58 3A Copy ROM to RAM 0 0 00e 833 Esc lt 60 3c Unidirectional mode 1 line 8 9 ESC 61 3D SetMSBtoO cece eee ee E 11 Esc gt 62 3E Set MSB tol nanena nitu tienes 8 11 ESC 63 3F Reassign graphics mode 836 ESC 6440 Initialize printer 04 8 8 ESCA 65 41 Select n 6O inch line spacing amp 16 ESCB 6642 Set vertical tabs 200005 8 17 Esce 67 43 Set page length in lines 8 13 ESC CO 67 43 Set page length in inches 8 13 ESCD 6844 Set horizontal tabs 8 21 ESC E 69 45 Select emphasized mode 8 27 ESC F 70 46 Cancel emphasized mode 8 27 ESC G n 47 Select double strike mode 8 28 ESC H 7248 Cancel double strike mode 8 28 ESC J 74 4A Perform n2. Intemational character sets country ASCII coda hex 23 24 40 5B 5C 5D 5E 60 70 7C 7D 7E 0 U S A se rvi7t i 37 1 France s oeg 7 a 2 Germany 8 AGU aos 3 UK zse fErvy 7 f t 4 Denmark e amp GOA 2e2 ge da 5 Sweden nBEAGAKABDVE BS AL 6 Italy se 74a i 7 Spam R ej N t aA 8 Japan se C 37 9 Norway tuo BE ALGAUE oA 10 Denmark I SERkOAUVE 2 wo A Spanil j s s i z z 12 Latin America i To select the desired international character set using SelecType set the COUNTRY option by following the steps in the CHANGE MACRO section earlier in this chapter The format of the Master Select code is shown below ASCII ESC n Decimal 27 33 n Hexadecimal IB 21 n The variable n is a number that identifies the mode or combination of modes To find the value of n use the following table to add up either the decimal or hexadecimal numbers for the features you want Feature Dec Hex 10 cp 0 00 t 12 cpr 01 i proportional 2 3 condensed 4 04 i emphasized 8 08 double strike 16 10 doubdie wide 32 20 italics 64 40 underline 128 80 24 Pin Printers Graphics 9 22 89 LQ 2550 IVORY DOT MATRIX PRINTER Individual graphics option commands There are four individual graphics option commands that are very much the same as the ESC command but each one works for only one graphics option All the
3. 0023 to 0 018 inches 0 06 to 0 46 mm Envelope 0 0063 to 0 0197 inches 0 16 to 0 52 mm Label 0 0075 inches maximum 0 19 mm Continuous paper or more 9 mm 0 357 or more 1 Z sh Y Printable area Yy y 101 to 361 mm 4 0 to 15 0 paperwidth 13 mm 0 51 or more 406 mm 16 0 paper width 26 mm 1 02 or more For printable area for envelopes see page A 8 Number of copies Buffer 8 Kbyte Character fonts SSCS Characters Font Epson Courier 10 12 15 Proportional Epson Preetige 10 12 15 Proportionaj Epeon Script 10 12 15 Proportional Orator S 10 Optionai with the Multi Font Module 24 Pin Printers Ribbon 96 standard ASCII character set including italic characters 13 international character sets Epson Extended Graphics characters Continuous multi part no carbon one original plus up to five copies Total thickness must not exceed 0 018 0 46 mm Black ribbon cartridge 7762 Life expectancy in Letter Quality characters at 48 dots character 3 million Color ribbon cartridge 7763 Life expectancy in Letter Quality characters at 48 dots character Black 1 0 million cyan 0 7 million Magenta 0 7 million Yellow 0 5 million Film ribbon cartridge 7764 9 22 89 Life expectancy at 10 cpi with bi directional printing using 136 columns 0 1 million This number may vary depe
4. 180 inch line feed 8 16 ESCK 75 4B Select single density graphics 8 34 ESCL 76 4C Select double density graphics 8 34 ESCM 77 4D Select 12 cpi 0 eee eee E 23 ESC N 78 4E Set skip over perforation 8 14 Esco 79 4F Cancel skip over perforation 8 14 ESC P 80750 Select 1Oscpi serip strewn cena ners a23 ESC Q 81 51 Setright margin 0 8 18 ESCR 82 52 International character set 832 ESC SO 83 53 Select superscript mode 8 28 ESC S1 83 53 Select subscript mode 828 ESCT 8454 Cancel superscript subscript 8 29 24 Pin Printers LQ 2550 GRAY DOT MATRIX PRINTER i ASCII Dec H a ESCU 85 55 ESC W 87 57 ESC Y 8959 ESCZ 90 SA ESC 92 SC ESC a 97 61 ESC b 98 62 ESC g 103 67 ESC k 107 6B ESC 1 108 6C ESC p 12 M ESC q 113 n ESCr 114 72 ESC t 116 74 ESC w 119 77 Escx 120 78 ESC 4 B 9 22 89 ion Page Unidirectional mode on off 8 10 Turn double wide mode on off 8 25 High speed dble density graphics 835 Quadruple density graphics a35 Set relative print position 8 20 i Select justification 8 30 Set vertical tabs in channels 8 17 Select 15 cpi 0 a23 l Select typestyle family 822 set left margin 0 00e eee eee 8 18 Turn proportional
5. 8 5 mm 0 337 or more 3 mm 3mm 10 12 10 12 or more or more 13 5 mm 10 53 or more Software 6 50 to 9 49 166mm to 241mm 3 62 to 4 09 92mm to 104mm 0 0063 to 0 0205 0 16mm to 0 52mm 12 to 24 lb paper 8 5 mm 0 337 or more Lo a Printable area Vise Z 22 mm 0 877 or more The following is a typical example of a software setup required for proper operation of your cut sheet feeder Not all software is set up the same so you may find that a bit of experimentation is required before you find the best equivalent settings to use To maintain 54 printed lines per page make the following changes Page Length Top Margin Bottom Margin 9 22 89 Continuous form settings Cut sheet feeder settings 6l 4 3 LQ 2550 7 LQ 2550 IVORY DOT MATRIX PRINTER Interface Specifications Your printer is equipped with both a parallel and a serial interface For specifications for optional interfaces see the manuals provided with the optional interfaces Parallel interface The following tables describe the parallel interface Pm assignments for the parallel interface Connector pin assignments and a description of their respective interface signals are shown in the following table Signal I Return l Direc i Pin An Signal ion Description 19 STROBE n STROBE pulse to read data in Pulse width must be more than 0 5 microseconds at the receiving te
6. it does not list the LQ 2550 on its printer selection menu If the LQ 2550 is not listed select the first printer available on the following list LQ 2500 LQ 1050 LQ 850 LQ 1000 LQ 800 LQ 500 LQ 1500 If none of these printers is listed select the first one available on the following list LQ EX FX LX RX MX Epson printer Standard printer Draft printer If you are printing in color it is recommended that you choose LQ 2550 or LQ 2500 To use all the features of the LQ 2550 however it is best to use a program with the LQ 2550 on its menu If your program does not list this printer contact the software manufacturer to see if an update is available For further information on using software see Chapter 4 WARNING When you print on envelopes be sure that your application program settings keep the printing entirely within the printable area shown below 3mm 0 12 or more 0 87 or more Note If the printed results are faint use the PLATEN GAP ADJUST button to adjust the distance between the print head and the platen 24 Pin Printers The Display C POWER i o 2a paren C PAPER OUT EON LINE a v gt co tractor Papen TON FRICTION SELECT DENSED csr SS OM LINE FORM FEED UNE FEED LOAD LJECT PITCH cs Roman 10 CPI Some of the fonts do not offer all pitches See the table below 10 12 15 if 10 12 15 Proportional_
7. paper Total thickness should not exceed 0 59 or 15mm Envelopes can only be used in bin 1 Stacker capacity Face down Face up LQ 2550 2 Up to 60 sheets of 22 1b paper Up to 75 sheets of 17 1b paper Up to 10 plain and bond type Up to 12 air mail Up to 150 sheets of 22 Ib paper Up to 185 sheets of 17 lb paper Up to 25 plain and bond type Up to 30 air mail Single sheets Envelopes Single sheets Envelopes 41 F 5 C to 95 F 35 C 22 F 30 C to 158 F 70 C 15 to 80 without condensation 5 to 90 without condensation envelope bin 1 6 50 to 9 49 166mm to 241mm 3 62 to 4 09 92mm to 104mm Reliability MCBF M ean Cycle Between Failure 100 000 cycles Environmental conditions Tempera O peration storage Humidity Operation Storage Paper Single sheet bin 1 and bin 2 Width TAT LO 14 3 182mm to 364mm Length 8 27 to 14 3 210mm to 364mm Thickness 0 0028 to 0 0039 0 07mm to 0 1mm Weight 17 to 22 lb paper Printable area 8 5 mm 0 33 or more 3mm 3mm 012 1012 or more or more 13 5 mm 0 37 or more Yi 3mm 0 12 or more 0 0043 to 0 0205 0 16mm to 0 52mm 12 to 24 Ib paper 8 5 mm _ 0 33 4 or more rintable a Z t 22mm 0 87 or more The following is a typical example of a software setup required for proper operation of your cu
8. 0 018 0 46 mm Black ribbon cartridge 7762 Life expectancy in Letter Quality characters at 48 dots character 3 million Color ribbon cartridge 7763 Life expectancy in Letter Quality characters at 48 dots character Black cyan Magenta Yellow Film ribbon cartridge 7764 Life expectancy at 10 cpi with bi directional printing using 136 columns 0 1 million e This number may vary depending on print direction characters per inch or text density per page 1 0 million 0 7 million 0 7 million 0 5 million 24 Pin Printers 1 M CBF For all components excluding mint head 5 million lines MTBF 6000 power on hours at 25 duty Print head life 200 million strokes per wire Dimensions and weight Height 1 7 Width 26 6 Depth 20 4 Weight approx 44 Ibs Voltage 120 VAC 10 Power consumption 400 watts maximum Frequency 49 5 to 60 5 Hz Insulation resistance 10M ohms between AC power line and chassis Dielectric strength between AC line and chassis Can withstand 1 25 kV rms applied for one minute Temperature Operation 40 F to 95 F 5 C to 35 C Storage 22 F to 140 F 30 C tO 60 C Humidity Operation 10 to 80 without condensation Storage 5 to 85 without condensation Shock Operation Up to 1 G within 1 ms Storage Up to 2 G within 1 ms Vibration Operation Up to 0 25 G at up to 55 Hz Storage Up to 0 50 G at up to 55 Hz The Cut S
9. 38 26 Define user defined characters 8 32 ESC 42 2A Select graphics mode amp 35 ESC 43 2B Select n Winch line spacing 8 16 ESC 4S 2D Tum underlining on off 8 29 ESC 47 2F Select vertical tab channel 8 18 Esco 4830 Select 1 8inch line spacing 8 15 ESCZ 50 32 Select 1 6 inch line spacing 8 15 ESC 3 51 33 Select n 180 inch line spacing 8 15 Esc4 52 34 Select italic mode 04 8 31 ESCS 53 3 5 Cancel italic mode 2 5 a32 ESC 6 5436 Enable printable characters 8 33 ESC 7 55 37 Enable upper control codes 834 ESC 58 3A Copy ROM to RAM 8 33 ESC lt 60 3c Unidirectional mode 1 lime a9 ESC 61 3D Se MSBtoQ o n 8 11 ESC gt 62 3E Set MSBtol oousi 8 11 ESC 63 3F Reassign graphics mode 8 36 ESC 6440 Initialize printer 0 0 8 8 ESC A 65 41 Select n 60 inch line spacing amp 16 ESC B 6642 Set vertical tabs 2008 8 17 ESC C 67 43 Set page length in lines 8 13 ESC CO 67 43 Set page length in inches 8 13 ESC D 6844 Set horizontal tabs 821 ESC E 69 4S Select emphasized mode 8 27 ESC F 70 46 Cancel emphasized mode a27 ESC G 71 47 Select double strike mode 8 28 ESC H 72 48
10. Cable cover Paper guide Color ribbon cartridge Printer SS 2 2 Sts QD Ribbon cartridge Power cable Platen knob A Fy lt ww Cross head screw driver Optional connector lock nuts Printer Specifications Printing Print method 24 pin impact dot matrix Print speed See table below Characters secondiline Printing direction Bidirectional logic seeking for text and graphics Unidirectional available through SelecType or software command tine spacing 1 6 1 8 or programmable in increments of 1 60th 1 180th or 1 360th of an inch Paper feed speed 83 ms line at 1 6 line spacing Printable columns See table below Character_size Maximum printed characters 10 cp condensed 12 cpr 12 cpr condensed LQ 2550 GRAY DOT MATRIX PRINTER Paper feed methods Paper width Paper length Paper thickness Printable area Single sheet 8 5 mm 0 33 or more 3 mm Printable area 13 5 mm 0 53 or more hj 3 mm f0 12 J Friction Built in push feed tractor Pull tractor optional Double bin cut sheet feeder optional Single sheets 7 15 to 14 3 inches 182 to 364 mm Continuous 4 0 to 16 0 inches 101 to 406 mm Envelope No 6 166 x 92 mm No 10 240 x 104 mm label 2 1 2 X 15 16 inches 4 X 15 16 inches 4 X 1 7 16 inches Single sheets 3 7 to 14 3 inches 94 to 364 mm Single sheets 0 0026 to 0 004 inches 0 065 to 0 1 mm Continuous 0
11. Cancel double strike mode 8 28 ESC J 74 4A Perform n W inch line feed 8 16 ESC K 75 4B Select single density graphics 8 34 ESC L 76 4C Select double density graphics 834 ESC M 77 AD Select W2Cpi hasa anne nienn nn A a23 ESC N 78 4E Set skip over perforation 8 14 ESC O 79 4F Cancel skip over perforation 8 14 ESC P 80 50 Select 10 epi aas sss sgssessesa003 10308 a23 ESC Q 81 51 Setright margin 0 818 ESC R 82 52 International character set 832 ESC SO 83 53 Select superscript mode 828 ESC S1 83 53 Select subscript mode 828 ESC T 84 54 Cancel superscript subscript 8 29 LQ 2550 10 9 22 89 24 Pin Printers
12. OA Line feed c cece eee 8 14 ESC p 112 7 0 Tim proportional mode on off a24 VT 11 OB Tab vertically 0000e 8 17 ESC q 113 71 Select character style 00 55 a29 FF 12 OC Formfeed 0 000 0005 8 13 ESC r 114 72 Select printing color 64 a27 CR 13 OD Carriage return 000 0005 8 12 ESC t 116 74 Select character table 8 31 so 14 OE Select double wide mode 1 line 8 25 ESC w 119 77 Turn double high mode on off 8 26 SI 15 OF Select condensed mode 8 24 ESC X 120 7 8 Select Letter Quality or draft a21 DC1 17 01 Selectprinter ieee Meee bk a 8 8 DC2 18 12 Cancel condensed mode 8 25 DC3 19 13 Deselect printer 02 00 8 9 DC4 20 14 Cancel double wide mode 1 line 8 26 CAN 24 18 Cancel line 00 cece eee eee 8 12 DEL 127 7 F Delete character 22 040 8 9 Esc so 14 OE Select double wide mode 1 line 8 25 ESC SI 15 OF Select condensed mode 8 24 ESCEM 2 5 19 Cut sheet feeder mode 8 10 Esc SP 32 20 Set intercharacter space 8 30 ESC 33 21 Master Select 00000 a22 ESC 3 5 23 Cancel MSB control 8 11 ESC 36 24 Set absolute print position 8 19 ESC 37 25 Select user defined set a33 ESC amp
13. alues and the page number where the complete command description can be found ASCH Dec Hex Description Page BEL FOR Beep aE 8 12 BS 8 08 Backspace ae ce ek cece de teens 8 19 HT 9 09 Tab horizontally 00005 8 20 LF 10 OA Dine feed oeer cee vere dee eta aces 8 14 VT 11 OB Tab vertically 0002 0 8 17 FF 12 OC Formfeed 000 cece eee al3 CR 13 OD Carriage return 0 000 8 12 sO 14 OE Select doublewide mode 1 line amp 25 SI 15 OF Select condensed mode 824 DC1 17 11 Select printer 0 0 00 ee eee 8 8 DC2 18 12 Cancelcondensedmode 825 DC3 19 13 Deselect printer 02 0005 8 9 DC4 20 14 Cancel double wide mode 1 line 826 CAN 24 18 Cancel line y escoge t ae oii e 8 12 DEL 127 7F Delete character 0 0055 8 9 ESC so 14 OE Select double wide mode 1 fine 8 25 ESC SI 15 OF Select condensed mode 4 8 24 ESCEM 25 19 Cut sheet feeder mode 8 10 Esc SP 32 20 Set intercharacter space 830 ESC 33 21 Master Select 000 0 eee eee g 22 ESC 3 5 23 Cancel MSB control 8 11 ESC 36 24 Set absolute print position 8 19 Esc 37 25 Select user defined set 33 ESC amp 38 26 Define user defined characters 832 ESC 422A Select graphics mode
14. e Enabled normal cond Enabled High Low Pulsed ea char on line Pulsed ea char Pulsed ea char High Low on line High Low Disabled off line High Low nu effect no effect While printing is disabled character data is being received and acknowledged so that the printer can look for another DC1 character which would allow it to resume printing Compatible interfaces The following is a list of Epson interfaces that are compatible with your LQ printer Interface number X8143 New seral interface X8148 intetigent IEEE 488 Interface 9 22 98 LQ 2550 8 Default Settings The following table shows the default conditions that become valid when the printer is initialized Top of form position Left and right margins SelecType setting line spacing Current paper position Horizontal tab positions Every eight characters VFU channel Channel 0 Font selection Reset to the current SelecType setting Userdefined characters Hardware Cleared Software Deselected only In addition the data buffer is cleared when the printer is initialized by turning on the power or by sending an INIT signal Note The userdefined character set is not cleared when the printer is initialized by ESC Choosing from a merm Because the family of Epson printers shares many commands you can use an application program even if
15. heet Feeder Dimensions and weight 26 7 W X 22 9 D x 16 5 H mounted on the printer approx 13 2 lbs Bin capacity bin 1 Single sheets Up to 150 sheets of 22 Ib paper Up to 185 sheets of 17 lb paper Total thickness should not exceed 0 59 or 15mm Envelopes Up to 25 plain and bond type Up to 30 air mail bin2 Single sheets Up to 150 sheets of 22 Ib paper Up to 185 sheets of 17 lb paper Total thickness should not exceed 0 59 or 15mm Envelopes can only be used in bin 1 Stacker capacity Face down Single sheets Up to 60 sheets of 22 1b paper up to 75 sheets of 17 lb paper Up to 10 plain and bond type Up to 12 air mail Envelopes up to 150 sheets of 22 lb paper Up to 185 sheets of 17 Ib paper Up to 25 plain and bond type Up to 30 air mail Face up Single sheets Envelopes 24 Pin Printers LQ 2550 IVORY DOT MATRIX PRINTER Reliability MCBF Mean Cycle Between Failure 100 000 cycles Environmental condition4 41 F 5 C to 95 F 35 C 22 F 30 C to 158 F 70 C 15 to 80 without condensation 5 to 90 without condensation envelope bin 1 binlandbin2 Temperature Operation Storage Humidity Operation Storage Paper Single sheet Width 7 17 to 14 3 182mm to 364mm Length 0 27 to 14 3 210mm to 364mm Thickness 0 0028 to 0 0039 0 07mm to 0 1mm Weight 17 to 22 lb paper Printable area
16. hen the printer is initialized t to Top of formposition Current paper position SelecType setting line_spacing Horizontal tab positions Every eight characters an Font selection Reset to the current SelecType setting User defined characters Hardware Cleared Software Deselected only In addition the data b amp r is cleared when the printer is initialized by turning on the power or by sending an INIT signal Note The userdefined character set is not cleared when the printer is initialized by ESC Choosing from a menu Because the family of Epson printers shares many commands you can use an application program even if it does not list the LQ 2550 on its printer selection menu If the LQ 2550 is not listed select the first printer available on the following list LQ 2500 LQ 1050 LQ 850 LQ 1000 LQ 800 LQ 500 LQ 1500 If none of these printers is listed select the first one available on the following list LQ EX FX LX RX MX Epson printer Standard printer Draft printer If you are printing in color it is recommended that you choose LQ 2550 or LQ 2500 To use all the features of the LQ 2550 however it is best to use a program with the LQ 2550 on its menu If your program does not list this printer contact the software manufacturer to see if an update is available For further information on using software see Chapter 4 application program settings keep the printing entirely
17. mode on off amp 24 Select character style 829 Select printing color a27 Select character table 8 31 Turn double high mode on off 8 26 Select Letter Quality or draft 821 Select Linc cue CEE IA LQ 2550 5 LQ 2550 IVORY DOT MATRIX PRINTER ihe Paper guide Cable cover lt 2 Ribbon cartridge Power cable Platen knob amp Ty Optional connector lock nuts Printer Specifications Cross head screw driver Printing Print method 24 pin impact dot matrix Print speed See table below Quality CPI Characters second line 10 333 12 400 10 11 12 133 Bidirectional logic seeking for text and graphics Unidirectional available through SelecType or software command Printing direction 1 6 1 8 or programmable in increments of 1 60th 1 180th or 1 360th of an inch Line spacing Paper feed speed 83 ms line at 1 6 line spacing Printable columns See table below Maximum printed characters 10 cor 136 10 co condensed 2p Bza oo 12 cp condensed Buffer 8 Kbyte Character fonts Font Available Sizes characters per inch Epson Draft to 12 15 Epson Roman 10 12 15 Proportional Epson Sans Serit 10 12 15 Proportional Epson Courier 10 12 15 Proportional 10 12 15 Proportional 10 12 15 Proportional 10 12 Proportional 10 12 Proportional Epson Pres
18. nding on print direction characters per inch or text density per page LQ 2550 1 LQ 2550 GRAY DOT MATRIX PRINTER MCBF MTBF Print head life Dimensions and weight Voltage Power consumption Frequency Insulation resistance For all components excluding print head S million lines 6000 power on hours at 25 duty 200 million strokes per wire Height LT Width 26 6 Depth 20 4 Weight approx 44 lbs 120 VAC 10 400 watts maximum 49 5 to 60 5 Hz 10M ohms between AC power line and chassis Dielectric strength between AC line and chassis Temperature Humidity Shock Vibration Can withstand 1 25 kV rms applied for one minute Operation 40 F to 95 F 5 C to 35 C Storage 22 F to 140 F 30 C to 60 C Operation 10 to 80 without condensation Storage 5 to 85 without condensation Operation Up to 1 G withii 1 ms Storage Up to 2 G within 1 ms Operation Up to 0 25 G at up to 55 Hz Storage Up to 0 50 G at up to 55 Hz The Cut Sheet Feeder Dimensions and weight Bin capacity 26 7 W x 22 9 D x 16 5 H mounted on the printer approx 13 2 Ibs bin 1 Single sheets Up to 150 sheets of 22 Ib paper Up to 185 sheets of 17 lb paper Total thickness should not exceed 0 59 or 15mm Envelopes Up to 25 plain and bond type Up to 30 air mail bin 2 Single sheets Up to 150 sheets of 22 Ib paper Up to 185 sheets of 17 lb
19. ne 4 Ouring printer error state e All interface conditions are based on TTL level Both the rise and the fall times of each signal must be less than 0 2 microseconds e Data transfer must be carried out by observing the ACKNLG or BUSY signal Data transfer to this printer can be carried out only after receipt of the ACKNLG signal or when the level of the BUSY signal is LOW Printing enabled disabled signals and control conditions The following table shows the relationship between printing being enabled or disabled the on line off line status and the receipt of the data on off control characters DC1 or DC3 ON LINE SLET IN oC1 0Cc3 ERROR jsUSY ACKNIG Printing Indicator Data Disabled on enabled on line Enabled normat cond Enabled High Low on line on line High Low Pulsed Disabled ea char D0C1 0C3 no effect Disabled While printing is disabled character data is being received and acknowledged so that the printer can look for another DC1 character which would allow it to resume printing Compatible interfaces The following is a list of Epson interfaces that are compatible with your LQ printer 816 Intelligent IEEE 488 Interface 24 Pin Printers 9 22 89 LQ 2550 GRAY DOT MATRIX PRINTER Default Settings The following table shows the default conditions that become valid w
20. r in this chapter The format of the Master Select code is shown below ASCII ESC n Decimal 27 33 n Hexadecimal 1B 21 n Graphics Individual graphics option commands There are four individual graphics option commands that are very much the same as the ESC command but each one works for only one graphics option AII these commands are for B pin graphics options Note that the commands contain one less variable than the ESC command because they don t need to select a graphics option The commands are shown below Function 80 gt Format o a fe high speed ESC 2 Ba Rl dots in Singiedensity Jef of o Double density a f 2 High speed doubledensity J 8f 2 1 Quadrupiedensny o J oed a C a Singie densit 24 Double densit 33 120 Adjacent dots cannot be printed in this mode The variable n is a number that identifies the mode or combination of modes To find the value of n use the following table to add up either the decimal or hexadecimal numbers for the features you want Feature T De Hx Coo lt T o oo o Rep 1 01 j proportional 2 02 condensed 4 04 l empnaszed gg double strike 16 10 l double wide 32 2 0 acs SS T s T no o Coerrme O OOOO O S a O o j LQ 2550 4 9 22 89 24 Pin Printers Commands in Numerical Order The following list shows control codes and ESC sequences with their decimal and hexadecimal v
21. rminal 2 20 DATA 1 IN These signats represent information of 3 21 DATA2 IN the 1st lo 8th bits of parallel data 4 22 DATA3 IN respectively Each signal s at HIGH level 5 23 DATA4 IN_ when data is logical 1 and LOW when it Is 6 24 DATA5 IN logical 0 7 25 DATA6 IN 8 26 DATA7 IN 9 27 DATA8 IN 10 2 8 ACKNIG OUT About a 11 microsecond pulse LOW indicates that data has been received and that the printer s ready lo accept more data 11 29 BUSY OUT JA HIGH signal indicates that the printer cannot receive data The signal goes HIGH in the following cases 1 Ouring data entry ea char time 2 During printing 3 When off line 4 During printer error state e All interface conditions are based on TTL level Both the rise and the fall times of each signal must be less than 0 2 microseconds e Data transfer must be carried out by observing the ACKNLG or BUSY signal Data transfer to this printer can be carried out only after receipt of the ACKNEG signal or when the level of the BUSY signal is LOW Printing enabled disabled signals and control conditions The following table shows the relationship between printing being enabled or disabled the on line off line status and the receipt of the data on off control characters DC1 or DC3 ON LINE SLCTIN 0C1 DC3 ERROA BUSY ACKNLG Printing Indicator Disabled on enabled on line Low J9 interfac
22. se commands are for 8 pin graphics options Note that the commands contain one less variable than the ESC command because they don t need to select a graphics option The commands are shown below Command _ ESC Format ESCK 1 Sngie density ESC Y Doubie density high speed ESC 2 ESC Z Option Singie density CT Doubte density 8 8 6 8 2 4 Adjacent dots cannot be printed in this mode LQ 2550 9 LQ 2550 IVORY DOT MATRIX PRINTER Commands in Numerical Order ASCI Dec Hex Description Page ESC U 85 55 Unidirectional mode on off 8 10 The following list shows control codes and ESC sequences with their ESC W 87 57 Turn double wide mode on off 25 decimal and hexadecimal values and the page number where the ESC Y 8959 High speed dble density graphics a35 complete command description can be found ESC Z 90 SA Quadruple density graphics a35 ESC N 92 5C Set relative print position a20 ESC a 97 6l Select justification a30 ASCII Dec Hex Description Page ESC b 98 62 Set vertical tabs in channels 8 17 BEL 7 07 Beeper ccccccccccccccccccccccccscce 8 12 ESC g 103 67 Select epi 0 a23 BS gu OS Backspacess itd Gee E N a 8 19 ESC k 107 6B Selecttypestylefamily a22 HT 9 09 Tab horizontally 00 200 8 20 ESC 1 108 6C Set left margin e eee 8 18 LF 10
23. t sheet feeder Not all software is set up the same so you may find that a bit of experimentation is required before you find the best equivalent settings to use To maintain 54 printed lines per page make the following changes Continuous Cut sheet form settings feeder settings Page Length 66 61 Top Margin 6 4 Bottom Margin 6 3 9 22 89 24 Pin Printers Interface Specifications Your printer is equipped with both a parallel and a serial interface For specifications for optional interfaces see the manuals provided with the optional interfaces interface The following tables describe the parallel interface Parallel Pin assignments for the parallel interface Connector pin assignments and a description of their respective interface signals are shown in the following table IN STROBE pulse to read data in Pulse width must be more than 0 5 microseconds at the receiving terminal 2 20 These signals represent information of 3 21 the 1st to 8th bits of parallel data 4 22 respectively Each signal IS at HIGH level 5 23 when data is logical 7 and LOW when it IS 6 24 logical 0 7 25 8 26 9 27 About a 1 1 microsecond pulse LOW Indicates that data has been received and that the printer IS ready lo accept more data OUTIA HIGH signal indicates that the printer cannot receive data The signal goes HIGH in the following cases 1 During data entry ea char time 3 Ouring printing 3 When offli
24. tige Epson Script Epson OCR A Epson OCR B 96 standard ASCII character set including italic characters 13 international character sets Epson Extended Graphics characters Characters LQ 2550 6 Paper feed methods Paper width Paper length Paper thickness Printable area Single sheet 8 5 mm 0 33 or m 3mm Printable area ae ee 13 5 mm 0 53 or more Friction Built in push feed tractor Pull tractor optional Double bin cut sheet feeder optional Single sheets 7 15 to 14 3 inches 182 to 364 mm Continuous 4 0 to 16 0 inches 101 to 406 mm Envelope No 6 166 x 92 mm No 10 240 x 104 mm Label 2 1 2 X 15 16 inches 4 X 15 16 inches 4 X 1 7 16 inches Single sheets 3 7 to 14 3 inches 94 to 364 mm Single sheets 0 0026 to 0 004 inches 0 065 to 0 1 mm Continuous 0 0023 to 0 018 inches 0 06 to 0 46 mm Envelope 0 0063 to 0 0197 inches 0 16 to 0 52 mm Label 0 0075 inches maximum 0 19 mm Continuous paper ore ret 3 mm 0 12 or more i i Z Printabl f i tapie area 1 Z rin i 1 1 gt F 101 to 361 mm 4 0 to 15 0 raper width 13 mm 0 51 or more 406 mm 16 0 paper width 26 mm 1 02 or more For printable area for envelopes see page A S Number of copies Ribbon 9 22 89 Continuous multi part no carbon one original plus up to five copies Total thickness must not exceed
25. within the printable area shown below W WARNING When you print on envelopes be sure that your 0 877 or more 0 12 or more Note If the printed results are faint use the PLATEN GAP ADJUST button to adjust the distance between the print head and the platen I LQ 2550 3 LQ 2550 GRAY DOT MATRIX PRINTER The Display POWER a ao aren Eos a PAPER OUT d ON LINE a 4 kd gt TRACTOR PAPER FRICTION SELECT ocsr c ON LINE FORM FEED LINE FEED LOAO EJECT Roman 10 CPI Some of the fonts do not offer all pitches See the table below 10 13 15 Roman 10 12 15 Proportional Sans Serif 10 12 15 Propornonai Courier 10 12 15 Proportonai_ Script 10 12 15 Proportional OCRA 70 12 Proportonai International character sets country ASCII code hex U S A FRANCE GERMANY U K DENMARK SWEDEN ITALY SPAIN I JAPAN NORWAY DENMARK SPAIN LATIN amertca BRRRRRHRFRKRXM SABE GOPAATDPOAADHOBHSH DAMD en seVuUBa cz ca cocoov WO e Dee amp D Duo Co gt gt oG gt gt DDD Pay ey rey lt 0 ee INRA EK BBABMAM e awmweaea woOocae Ol tv OO Pw E je tew C Ow tne AA AOannrnm GG m2 DWN w A 4 oeoecca To select the desired international character set using SelecType set the 23 24 40 58 SC 5D SE 60 7B 7C 7D 7E COCCO tie a rte COUNTRY option by following the steps in the CHANGE MACRO section earlie
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