Contents

Epson LQ-2550 Product Information Guide PDF

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Summary of Content for Epson LQ-2550 Product Information Guide PDF

LQ-2550 GRAY DOT-MATRIX PRINTER

Paper feed methods: Friction- Built-in push feed tractor Pull tractor (optional) Double-bin cut sheet feeder (optional)

Paper width: 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-l/2 X 15i16 inches, 4 X 15116 inches, 4 X l-7116 inches,

Paper length: Single sheets 3.7 to 14.3 inches (94 to 364 mm)

Paper guide

Ribbon cartridge Power cable Platen knob

Paper thickness: Single sheets I

0.0026 to OX04 inches (0.065 to 0.1 mm)

Printer Specifications

Printing

Print method: 24-pin impact dot matrix

Continuous 0.0023 to 0.018 inches (0.06 to 0.46 mm)

Envelope 01X163 to 0.0197 inches (0.16 to 0.52 mm)

Label I 0.0075 inches (maximum 0.19 mm)

Printable area:

Sing.ie sheet

8.5 mm (0.33) or more

Continuous paper

Print speed: See table below.

Ouality malt

LO

CPI Characterslsecondlline 10 333 12 AW 10 111 12 133

.3 mm f0.12J or more

3mm

Printing direction: Bidirectional logic-seeking for text and graphics. Unidirectional available through SeiecType or software command.

tine spacing:

Paper feed speed:

Printable columns:

l/6*, l/B. or programmable in increments of 1/60th, l/lBOth or 11360th of an inch

.83 msiiine at l/6 line spacing

See table below. IOZ to hl mm f4.0 to 15.&J paper I3 mm fO.51J or more 406 mm (16.0) paper width 26 mm (1.02) or more

w i d t h

Character exe IOCPI lOcp! condensed 12CPI 12 CPI condensed

! Maxcmum printed characters I 136 ! 233 1 163

272

For printable area for envelopes, see page A-8.

Number of copies: Continuous. multi-part. no carbon: one original plus up to five copies. Total thickness must not exceed 0.018 (0.46 mm)

Buffer:

Character fonts:

8 Kbyte - - - -

Characters: Ribbon: Black ribbon cartridge 17762:

Life expectancy (in Letter Quality

96 standard ASCII character set (including italic characters) 13 international character sets Epson Extended Graphics characters

characters, at 48 dots/character): 3 million

Color ribbon cartridge 87763: Life expectancy (in Letter Quality characters, at Q8 dots/character)

Black: 1.0 million cyan: 0.7 million Magenta: 0.7 million Yellow 0.5 million

Film ribbon cartridge # 7764: Life expectancy (at 10 cpi, with bi- directional printing, using 136 columns): 0.1 million l This number may vary depending on

print direction, characters per inch, or text density per page.

1 EpsmF3wnom 1 lalzlr~ I

orrcr-s 10 I ~opaaurWilhSl*MllnKomMOdU~

24-Pin Printers 9/22/89 LQ-2550-1

LQ-2550 GRAY DOT-MATRIX PRINTER

MCBF: a-...=.. . I,

For all components excluding print head: 5 million lines

Reliability

MTBF:

Print head life:

Dimensions and weight:

MCBF (Mean Cycle Between Failure): 100.000 cycles

Voltage:

Power consumption:

Frequency:

Insulation resistance:

6000 power-on hours (at 25% duty)

200 million strokes per wire

Height: 7.7 W i d t h : 26.6 Depth: 20.4 Weight: approx. 44 Ibs

120 VAC + 10%

400 watts maximum

49.5 to 60.5 Hz

ZOM ohms between AC power line and chassis

Dlelectri~ strength (between AC line and chassis): Can withstand 1.25 kV rms applied for one minute

Temperaturez Operation: 40F to 95F (5C to 35C) Storage: -22F to 140F (-30C to 60DC)

Humi+: Operation: 10% to 80% (without condensation)

Shock:

Vibration:

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 I I

Dimensions and weight: 26,7(W) X 22.9(D) x 16.5(H) (mounted on the printer) approx. 13.2 Ibs.

Bin capacity: bin 1 Single sheets. Up to 150 sheets of 22 lb. 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 lb. 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 lb. paper Up to 75 sheets of 17 lb. paper

Face up

Envelopes: Up to 10 (plain and bond type) Up to 12 (air mail)

Single sheets: Up to 150 sheets of 22 lb.

paper Up to 185 sheets of 17 lb. paper

Envelopes: Up to 25 (plain and bond type) Up to 30 (air mail)

T e m p e r a -

Humidity:

Operation:

storage:

Operation:

Storage:

f41F (+5C) to +95OF ( +3s0cj -22F (-30C) to +15BaF (+7oc) 15% to 80% without condensation 5% to 90% without condensation

Width

Length

Thickness

Weight:

Printable area :

Single sheet binlandbin2

7.17 LO 14.3 (182mm to 364mm)

8.27 to 14.3 cmmm to 364mm)

0.0028 to 0.0039 007mm to O.lmm)

17 to 22 lb. paper

envelope bin1

6.50 to 9.49 (166mm to 24lmm)

3.62 to 4.09 (92mm to 104mm)

0.0043 to 0.0205 (0.16mm to 0.52mm)

12 to 24 lb. paper

2 2 m m (0 87) or m*re

The following is a typical example of a software setup required for proper operation of your cut sheet feeder. Not ail 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

Continuous form settings

66

6

6

Cut sheet feeder settings

6 1

4

3

LQ-2550-2 9 / 2 2 / 8 9 24-Pin Printers

LQ-2550 GRAY DOT-MATRIX PRINTER

1 Interface Specifications 1

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.

fii assignments for the paralleI interface

Conmctor pin assignments and a description of their respective interface signals are shown in the following table.

SlgM kann kc- Pin An Snld lrn OwrriutlMl

1 19 STROBE lN STROBE pulse to read dala rn Pulse wdth must be more than 0 5 mrcroseconds at Ihe recewrng termrnal

: z: DATA 1 IN DATA 2

These srgnals represent lnformatton of IN

4

2 2 E ,

the 1st 10 8th bits of parallel data. IN respectrvely Each srgnal IS at HIGH level IN

2 DATA 5

when dala IS logrcal 1 and LOW when II IS

7

: SF k%;

I N Iog~alCI. IN

10

11

DATA 6

2 6 ?i7TRlm

29 BUSY

IL! OUT About a 1 l~mrrosecond puke. LOW

Indicates that data has been recetved and lhal the prtnter IS ready lo accept more data

OUT A HIGH srgnal lndrcales that Ihe punter cannot recerve data The srgnal goes HIGH I the lollowng cases: 1) Dunng data entry (ea char. trme) 2) Dunng prrntmg 31 When off lrne

I I I 14) Durrng prrnler-error state.

l All interface conditions are based on Tn. level. Both the rise and the fall times of each signal must be less than 0.2 microseconds.

l 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 Am 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 pW.

ACKNLG Printing

%Ky

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.

Inlet-face number Name #El43 New sew mteriace x8148 lntelllgenr send rnreriace X8165 Inle%gent IEEE-488 Interface

Default Settings I

The following table shows the default conditions that become valid when the printer is initialired.

/ I

Item Reset lo: Tap of form pasSlcn Current paper cosdion Len and right margtns SeIecTyve seItw line spacing l/&inch line spacing Mbcal tab posrtions cleared Horrzontal tab pasllions Every eight characters VFU chanti Channel 0 Font selectton Reset to the current SelecTwe setting Userdehned characlers Hardware: Cleared

Software: Deselected only

In addition, the data b&r is cleared when the printer is initial&d by tumingonthepowerorbysendinganINITsignal.

Note: The userdefined character set is not cleared when the printer is initialized by ESC @.

I

Choosing from a menu

Because the family of Epson printers shares many commar& you can use an application program even if it does not lit 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-1050 (LQ-SSO) LQ-loo0 CLQ-KO, W-500 LQ-1500

lf 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.

22mm (0.87-J or more

I 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

24-Pin Printers LQ-2550-3

LQ-2550 GRAY DOT-MATRIX PRINTER

r-lPITCH

[ Roman 10 CPI] Some of the fonts do not offer all pitches. See the table below.

I Dran I 10 13 15 I

International character sets

country ASCII code (hex)

2 3 24 40 58 5C 5D 5E 60 78 7C 7D 7E

V.S.6 FRPlNCE GERMW+Y U.K. DENMARK I

DENPIARK II SPAIN II LATIN mERIC* I(ORE& LEGAL

To select the des~re~.I mternatlonal character set using SeIecType. 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 ! 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 featurrs you want.

Feature Dec. 10 CD! 0 12 CPl 1 PWPiXllOll.3 2 condensed 4 empnasued a double.strlke 16 doublewde 32 ItalCS 64 underlme 128

Hex. I 00 01 : 02 ! 04 I 08 I 10 1 2 0 40 60 J

In&id-id graphics option commands

There are four individual graphics option commands that are very much the same as the ESC l command, but each one works for only one graphics option. AII these commands are for B-pin graphia options. Note that the commands contain one less variable than the ESC * command because they dont need to select a graphics option.

The commands are shown below:

-.., ., I -, - I

Singledenslty 1 24 [ 32 1 60 nn,hb~.n.,t I -34 I 11 I ,m ----.- -,.,., - -

CRT Ill 24

Tnple.densny 24

Hexdenslty 24 * AdlaCenI dots cannot be printed I lhls mcde

-I ,S

38 1 90

39 ! 180 40 1 360

LQ-2550-4 9/22/89 24-Pin Printers

LQ-2550 GRAY DOT-MATRIX PRINTER

. .~. _. _--b-w iAsal Page !

Commands in Numerical Order DEC. H a Desaiption

Escu 85.55

The following list shows control codes and ESC sequences (with their decimal and hexadecimal values), and the page number where the complete command description can be found.

DeeAASCII

BEL BS I-i-r LF vr A CR so SI

E DC3 DC4 CAN DEL Esc s o Esc SI ESCEM Esc SP ESC! =cif ESCS Esc % ESC& ESC E s c + ESC- ESCi E s c o ESc2 ESc3 ESc4 ESc5 ESCb ESC7 Esc: Esc < Esc = Esc > ESc7 EsC@ ESCA ESCB E s c c E!xco ESCD ESC E ESC F EKG ESC H ESCJ ESCK ESCL ESCM ESC N E s c o ESC P =CQ ESCR ESC SO lx Sl ESCT

7 07

Hex Description Page

Wr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12 Backspace . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-19 Tab horizontally . . . . . . . . . . . . . . . . . . . . . . 8-20 Line feed . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-14 Tab vertically . . . . . . . . . . . . . . . . . . . . . . . . 8-17 Formfeed . . . . . . . . . . . . . . . . . . . . . . . . . . . a13 Carriage return . . . . . . . . . . . . . . . . . . . . . . .8-12 Select doublewide mode (1 line) . . . . . . . . .a25 Select condensed mode . . . . . . . . . . . . . . . . . 824

8 08 9 09

10 OA 11 08 l2oc 13 OD 14 OE 15 OF 17 11 18 12 19 13 20 14 24 18

I27 7F 14 OE 15 OF 25 19 32 20 33 21 3.5 23 36 24 37 25 38 26 4 2 2 A 43 28 45 2D 47 2F 4830 SO 32 51 33 52 34 53 3.5 5 4 3 6 55 37 58 3A 60 3c 61 3D 62 3E 63 3F 6 4 4 0 65 41 6 6 4 2 67 43

67 43 6 8 4 4 69 45 70 46 n 47 7 2 4 8 74 4A 75 4B 76 4C 77 4D 78 4E 79 4F 8 0 . 5 0 81 51 82 52 83 53 83 53 8 4 5 4

ESCW ESCY ESCZ EC\ ESCa ESCb =cg ESCk ESCI ESCP

E EC: ESCW E s c x

Esc (-

87 57 8 9 5 9 90 SA 925c 97 61 98 62

1 0 3 67

107 68 1 0 8 bc 112 m 1 1 3 n 1 1 4 72 116 74 1 1 9 77 120 78 4028

Unidirectional mode on/off . . . . . . . . . . . . . a10 Turn double-wide mode on/off .a25

; 1. . . . . . . . .

High-spesddblety ~C&CS . . . . . . . . a35 j Quadrupltdensity~phh . . . . . . . . . . . . . a35 Setmlativeprintposition.. au)

\ . . . . . . . . . . . . . ;

S&t justihtion . . . . . . . . . . . . . . . . . . . . . S-30 Setvatlcaltabsinchannels.. . . . . . . . . . . .817 sdascpi.. . . . . . . . . . . . . . . . . . . . . . . . . a23

1

Sefecttypestylefamily .822 i

. . . . . . . . . . . . . . . . set left margin a18

/ . . . . . . . . . . . . . . . . . . . . . . . .

Turn proportional mode on/off . . . . . . . . . .&?4 Sekt character style . . . . . . . . . . . . . . . . . .8-29 Select printing color . . . . . . . . . . . . . . . . . . . a27

(

Select character table i

. . . . . . . . . . . . . . . . . . a31 : Turndouble-highmodeon/off . . . . . . . . . .a26 SelectL.etterQualityordraft

) . . . . . . . . . . . . a21

S&ct Line ....-.....................-.......... . . . . .. .. 8-29

Select printer . . . . . . . . . . . . . . . . . . . . . . . . . 8-8 Cancelcondensedmode.. . . . . . . . . . . . . . .8-25 Deselect printer . . . . . . . . . . . . . . . . . . . . . . . 8-9 Cancel double-wide mode (1 line) . . . . . . . . E26 Cancel line . . . . . . . . . . . . . . . . . . . . . . . . . . . a12 Delete character . . . . . . . . . . . . . . . . . . . . . . 8-9 Select double-wide mode (1 lime) . . . . . . . . . 8-25 Select condensed mode . . . . . . . . . . . . . . . . . 8-24 Cut sheet feeder mode . . . . . . . . . . . . . . . . . 8-10 Set intercharacter space . . . . . . . . . . . . . . . .8-30 Master Select . . . . . . . . . . . . . . . . . . . . . . . . . g-22 Cancel MSB control . . . . . . . . . . . . . . . . . . .8-11 Set absolute print position . . . . . . . . . . . . . .8-19 Select user-defined set . . . . . . . . . . . . . . . . . ,833 Define user-defined characters . . . . . . . . . . . 832 Select graph& mode . . . . . . . . . . . . . . . . . .8-35 Select n/36&nch line spacing . . . . . . . . . . .8-16 Turn underlining on/off . . . . . . . . . . . . . . . . 8-29 Select vertical tab channel . . . . . . . . . . . . . .8-18 Select 1/8-m&t line spa&g . . . . . . . . . . . . .8-15 Selectl/6-iilinespacing . . . . . . . . . . . . .8-15 Select n/l8Oinch line spacing . . . . . . . . . . .8-15 Select italic mode . . . . . . . . . . . . . . . . . . . . . 831 Cancel italic mode . . . . . . . . . . . . . . . . . . . . 8-32 Enable printable characters . . . . . . . . . . . . . 8-33 Enable upper control codes . . . . . . . . . . . . . 8-34 Copy ROM to RAM . . . . . . . . . . . . . . . . . . 833 Unidirectional mode (1 line) . . . . . . . . . . . . 8-9 Set MSB to 0 . . . . . . . . . . . . . . . . . . . . . . . . . E-11 Set MSB to 1 . . . . . . . . . . . . . . . . . . . . . . . . .8-11 Reassign graph+ mode . . . . . . . . . . . . . . . .a36 Initialize printer . . . . . . . . . . . . . . . . . . . . . . . 8-8 Select n/winch line spacing . . . . . . . . . . . .&lb Set vertical tabs . . . . . . . . . . . . . . . . . . . . . . . 8-17 Se4 page length in lines . . . . . . . . . . . . . . . . . 8-13 Set page length in inches . . . . . . . . . . . . . . . 8-13 Set horizontal tabs . . . . . . . . . . . . . . . . . . . ,821 Select emphasized mode . . . . . . . . . . . . . . . ,827 Cancel emphasized mode . . . . . . . . . . . . . . . 8-27 Select double-strike mode . . . . . . . . . . . . . ,828 Cancel double-strike mode . . . . . . . . . . . . . 8-28 Perform n/180-inch line feed . . . . . . . . . . . . 8-16 Select single-density graphics . . . . . . . . . . . . 8-34 Select double-density graphics . . . . . . . . . . . 8-34 Select 12 cpi . . . . . . . . . . . . . . . . . . . . . . . . . . E-23 Set skip over perforation . . . . . . . . . . . . . . . 8-14 Cancel skip over perforation . . . . . . . . . . . . 8-14 Select 10 cpi . . . . . . . . . . . . . . . . . . . . . . . . . . a23 Set right margin . . . . . . . . . . . . . . . . . . . . . . ax3 International character set . . . . . . . . . . . . . . 832 Select superscript mode . . . . . . . . . . . . . . . . &28 Select subscript mode . . . . . . . . . . . . . . . . . . 828 Cancel superscript/subscript . . . . . . . . . . . . 8-29

24-Pin Printers 9/22/89 LQ-2550-5

LQ-2550 IVORY DOT-MATRIX PRINTER

Cable cover

Ribbon cartridge

&

Cross-head scre~u driver

Paper guide

Power cable Platen knob

5 Optional connector lock nuts

Printer Specifications

Printing

Print method:

print speed:

Quality Draft

LO

24-pin impact dot matrix

See table below.

CPI Characters/second/line 10 333 12 4cO 10 111 12 133

Printing direction: Bidirectional logic-seeking for text and graphics. Unidirectional available through SelecType or software command.

Line spacing: l/6, l/S, or programmable in increments of 1/6Oth. l/lSOth or 1/360th of an inch

Paper feed speed:

Printable columns:

Character size 10 CPI 10 CP~ condensed 12 CPI 12 cpt condensed

83 mslline at l/6 line spacing

See table below.

MaxImum printed characters 136 233 163 272

Buffer: 8 Kbyte

Character fonts:

Font Epson Draft Epson Roman Epson Sam SWlf Epson cower Epson Prestige Epson Scrqt Epson OCR-A Epson OCR-B

Available Sizes (characlers per 1nch1 to.12 15 10.12.15. PrOcoltlOnal i 10 12.15. Prowrtlonal 10.12.15. Procomonal 10 12.15. Prowmonal 10 12.15. Prowrtlonal

/ 10.12. Prwrllonal 10.12. Prcoorlbonal

Characters: 96 standard ASCII character set (including italic characters) 13 international character sets Epson Extended Graphics characters

--~ Paper feed methods:

-~ Friction Built-in push feed tractor Pull tractor (optional) Double-bin cut sheet feeder (optional)

Paper width: 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-l/2 X 1516 inches, 4 X U/16 inches, 4 X l-7/16 inches,

Paper length: SingIe sheets 3.7 to 14.3 inches (94 to 364 mm)

Paper thickness: 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)

Iabel 0.0075 inches (maximum 0.19 mm)

Printable area:

Single sheet Continuous paper

3mm -3 mm (0.12) or mom

I 101 to 361 mm (4.0 to 15.0) I: 13 mm (0.51 J or man?

13.5 mm (0.53-J or more 406 mm (I6.0) paper width 26 mm (2.02) or more

For printable area for envelopes, see page A-S.

Number of copies: Continuous, multi-part, no carbon: one original plus up to five copies. Total thickness must not exceed 0.018 (0.46 mm)

Ribbon: Black ribbon cartridge #?762: 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: Life expectancy (at 10 cpi. with bi- directional printing, using 136 columns): 0.1 million l This number may vary depending on

print direction, characters per inch, or text density per page.

width

LQ-2550-6 24-Pin Printers

LQ-2550 IVORY DOT-MATRIX PRINTER ;

MCBF: For all comoonents excludinn mint head: 5 million l&s

-.

MTBF: 6ooo power-on hours (at 25% duty)

Print head life: 200 million strokes per wire

Dimensions and weight: Height: 7.7 Width: 26.6 Depth: 2 0 . 4 Weight: approx. 44 Ibs

Voltage: 120 VAC f 10%

Power consumption: 400 watts maximum

Frequency: 49.5 to 60.5 Hz

Reliability

MCBF (Mean Cycle Between Failure): 100,000 cycles

Environmental condition4

Temperature:

Humidity:

Paper

insulation resistance: 10M ohms between AC power line and chassis

TIC stmqth (between AC line and chassis): Can withstand 1.25 kV rms applied for one minute

Temperature: Operation: 40F to 95F (5OC to 350C) Storage: -22F to 140F (-30C to 60C)

Humidity: Operation: 10% to 80% (without condensation)

Shock:

Vibration:

Storage: 5% to 85% (without condensation)

Operation: Up to 1 G within 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: 26.7(W) X 22.9*(D) x 16.5(H) (mounted on the printer) approx. 13.2 Ibs.

Bin capacity: bin 1 Single sheets: Up to 150 sheets of 22 lb. 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 lb. paper

Up to 185 sheets of 17 lb. paper (Total thickness should not exceed 0.59 or 15mm)

l Envelopes can only be used in bin 1.

Stacker capacity:

Face down Single sheets: up to 60 sheets of 22 lb. paper up to 75 sheets of 17 lb. paper

Envelopes: Up to 10 (plain and bond type) Up to 12 (air mail)

Face up Single sheets: up to 150 sheets of 22 lb. paper up to 185 sheets of 17 lb. paw

Envelopes: Up to 25 (plain and bond type) Up to 30 (air mail)

Operation:

Storage:

Operation:

Storage:

+41F (+SC) to +9sF (+35oc) -22F (-30C) to +158F (+70(I) 15% to 80% without condensation 5% to 90% without condensation

Width

L=d

Single sheet b in landbin2

7.17 to 14.3 (182mm to 364mm)

0.27 to 14.3 (21Omm to 364mm)

Thickness

Weight:

Printable area:

0.0028 to 0.0039 (0.07mm to O.lmm)

17 to 22 lb. paper

envelope bin 1

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

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

Continuous Cut sheet form settings feeder settings

66 6 1

b 4

6 3

24-Pin Printers 9/22/89 LQ-2550-7

LQ-2550 IVORY DOT-MATRIX PRINTER - - -

I Interface Specifications I 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 assignmenb for the parallel interface

Connector pin assignments and a description of their respective interface signals are shown in the following table.

I Sml I ktum I tire in Pin S$nal

tm cemplmn

1 19 STROBE IN STROBE pulse to read data in Pulse mdth must be more than 0.5 mwxeconds at the recewng termwk

2 20 DATA 1 IN 3

2 F% ;

These signals represent lnformatlon of IN

2

the 1st lo 8th brts of parallel data, IN

s: DATA 4

respectively. Each slgnal IS at HlGH level IN

6 DATA 5 when data IS lqcal 1 and LOW when It IS

B ;:

DATA 6 IN logIcal 0.

ii% ; II

27 IN 10 2 8 ?if.xtm CUT Abel a 11 -mIcrosecond pulse. LOW

indicates that data has been recewed and that the prlnier IS ready lo accept more data.

11 29 BUSY OUT A HIGH slgnal lndrcates that the pnnler cannot recewe data. The srgnal goes HIGH in the lollowng cases 1) Dung data entry (ea. char: time) 2) Dunng prlntmg 3) When ofl line 4) Dunng prrntererror state.

l All interface conditions are based on Tn level. Both the rise and the fall times of each signal must be less than 0.2 miuoseconds.

l Data transfer must be carried out by obsening the ACKNLG or BUSY signal. Data transfer to this printer can be carried out only after receipt of the Am signal or when the level of the BUSY signal is LOW.

Printing enabled/disabled signals and control condition

The following table shows the relationship between printing being enabled or disabled, the on line/off line status, and the receipt of the data onioff control characters, DC1 or DC&

O N L I N E SLctlN DClIDC3 i%RjR BUSY -

~~

on lme H i g h DC1 Raovd

High High/Low Pulsed Enabled ea. char.

on line High DC3 Recvd

High High/Low Pulsed aa. char. oisabled

on line High/Low DClIDC3 LOW High Disabled (M, effect) (no dfeet) gNBOrneratad

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 Name X8143 New serial interface X8148 lrxelllgent serra~ mterface rr8165 Intellgenc IEEE.488 Interface

Default Settings The following table shows the default conditions that become valid when the printer is initialized.

bln Top of form poWion

I Reset lo: lCurrent paper posltion

Left and nghl margms line spacng

]SelecType setfing ( W-inch line spacing

Mrtcal tab pasltlons Horizontal tab pxtbons VFU channel Font selectron Userdefined characters

Cleared Every ecght characters Channel 0 Reset lo the current SelecType setting Hardware: Cleared

JsOffware: Deselected only I

In addition, the data bufkr is cleamd when the printer is initial&d by turningonthepowerorbysendinganINITsignal.

I Note: The userdefined character set is not cleared when the printer is initialized by ESC @. I

Choosing from a merm

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:

W-= LQ-1050 (LQ-8.50) LOloo0 (Los001 K?-=J LQ-1500

If none of these printers is lied, 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.

I WARNING When you print on envelopes, be sure that your application program settings keep the printing entirely within the printable area shown below.

r-----i 8.5 mm

22 mm (0.87) or more

I Note: If the printed results are faint. use the PLATEN GAP ADJUST button to adjust the distance between the mint head and the platen.

LQ-2550-8 9 / 2 2 / 9 8 24-Pin Printers

LQ-2550 IVORY DOT-MATRIX PRINTER --

T h e D i s p l a y 1 Graphics 1

PITCHa 1 Roman 10 CPI]

Some of the fonts do not offer all pitches. See the table below.

Draft 10. 12. 15 Aoman 10. 12. 15. Proporrlonal Sens Serif 10. 12. 15. ProportIonal Courier 10. 12. 15. ProportIonal Prestige 10. 12. 15. Proportional Script 10. 12. 15. Proportional OCR-A 10. 12. Propomona OCR-0 10. 12. Prcportfonal

International character sets

country

0 U.S.A. 1 France 2 Germany 3 U.K. 4 Denmark I 5 Sweden 8 Italy 7 Spam I 8 Japan 9 Norway

10 Denmark II 11 Spam II 12 Latm America

E2 ASCII coda (hex) 7

!3 24 40 58 5C 50 5E 60 70 7C 7D 7E

! 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 1OCPl 12CPI procortlonal condensed eft7OhaSlZed double-Slrtke douOlewde leaks underlme

Dec. Hex. I 0 00 I

1 01 / 2 3 2 4 04 8 I 0 8

16 I 10 32 20 64 ! 40 i

128 80 I

Individual graphics option commands

There are four individual graphics option commands that are very much the same as the ESC l command, but each one works for only one graphics option. All these commands are for &pin graphics options. Note that the commands contain one less variable than the ESC l command because they dont need to select a graphics option.

The commands are shown below:

1 Option Pins m Horiz densit) rh+.,in

Adlacent do% cannot be printed ln lhls mode

24-Pin Printers 9 / 2 2 / 8 9 LQ-2550-9

LQ-2550 IVORY DOT-MATRIX PRINTER - - -

I Commands in Numerical Order I ASCII , 1

The following list shows control codes and ESC sequences (with their decimal and hexadecimaJ values), and the page number where the complete command description can be found.

ESC U ESC W ESC Y ESC Z ESC \

ASCII Dec. Hex Description Page ESCa ESCb

Dec. Hex Description Page

BEL BS I-l-r LF VT FF CR s o SI DC1 DC2 DC3 DC4 CAN DEL E s c s o Esc SI ESCEM Esc SP

- ESC! EC# ESCS ESC% ESC & ESC ESC + ESC - ESC/ E s c o ESCZ Esc3 E s c 4 ESCS ESC 6 ESC 7 ESC : ESC < ESC = ESC > ESC ? ESC @ ESC A ESC B ESC C ESC C0 ESC D ESC E ESC F ESC G ESC H ESC J ESC K ESC L ESC M ESC N ESC O ESC P ESC Q ESC R ESC SO ESC S1 ESC T

7 07 B-F ............................. ,812 8 08 Backspace . . . . . . . . . . . . . . . . . . . . . . . . . ..8-19 9 09 Tab horizontally . . . . . . . . . . . . . . . . . . . . . .8-20

10 0A Linefeed . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-14 11 08 Tab vertically . . . . . . . . . . . . . . . . . . . . . . . .8-17 l2oc Formfeed . . . . . . . . . . . . . . . . . . . . . . . . . ..8-13 1 3 0 D Carriage return . . . . . . . . . . . . . . . . . . . . . ..8-12 14 0E Select double-wide mode (1 line) . . . . . . . . .8-25 15 0F Select condensed mode . . . . . . . . . . . . . . . . .824 17 11 Select printer . . . . . . . . . . . . . . . . . . . . . . . . . 8-8 18 12 Cancel condensed mode . . . . . . . . . . . . . . . .8-23 19 13 Deselect printer . . . . . . . . . . . . . . . . . . . . . . . 8-9 20 14 Cancel double-wide mode (1 line) . . . . . . . . 8-26 24 18 Cancelline...........................8-12

I27 7 F Delete character . . . . . . . . . . . . . . . . . . . . . . 8-9 14 OE Select double-wide mode (1 line) . . . . . . . . . 8-25 15 OF Select condensed mode . . . . . . . . . . . . . . . . . 8-24 2.5 19 Cut sheet feeder mode . . . . . . . . . . . . . . . . .8-10 32 20 Set intercharacter space . . . . . . . . . . . . . . . . 8-30 33 21 Master Select . . . . . . . . . . . . . . . . . . . . . . . . . a22 3.5 23 Cancel MSB control . . . . . . . . . . . . . . . . . . . 811 36 24 Set absolute print position . . . . . . . . . . . . . . a19 37 25 Select userdefinedset . . . . . . . . . . . . . . . . . . a33 38 26 Define user-defined characters . . . . . . . . . . .8-32 422A Select graphics mode . . . . . . . . . . . . . . . . . ,835 43 2B Select n/Winch line spacing . . . . . . . . . . . 8-16 45 2D Turn underlining on/off . . . . . . . . . . . . . . . . 8-29 47 2F Select vertical tab channel . . . . . . . . . . . . . .8-18 4 8 3 0 Select l%iich line spacing . . . . . . . . . . . . . ais SO 32 select l/&inch line spacing . . . . . . . . . . . . . a15 51 33 Select n/180-&h line spacing . . . . . . . . . . . a15 52 34 Select italic mode . . . . . . . . . . . . . . . . . . . . . a31 53 3.5 Cancel italic mode . . . . . . . . . . . . . . . . . . . . a32 5 4 3 6 Enable printable characters . . . . . . . . . . . . . 8-33 5.5 37 Enable upper control codes . . . . . . . . . . . . . 834 58 3A Copy ROM to RAM . . . . . . . . . . . . . . . . . . 8-33 60 3c UnidirectionaJ mode (1 lime) . . . . . . . . . . . . a 9 61 3D SetMSBtoO. . . . . . . . . . . . . . . . . . . . . . . . . 8-11 62 3E Set MSB to 1 . . . . . . . . . . . . . . . . . . . . . . . . . 8-11 63 3F Reassign graphics mode . . . . . . . . . . . . . . . ,836 6 4 4 0 Initialize printer . . . . . . . . . . . . . . . . . . . . . . . 8-8 65 41 Select n/Winch line spacing . . . . . . . . . . . ,816 6 6 4 2 Set vertical tabs . . . . . . . . . . . . . . . . . . . . . . . a17 67 43 Set page length in lines . . . . . . . . . . . . . . . . . a13 67 43 Set page length in inches . . . . . . . . . . . . . . . a13 6 8 4 4 Set horizontal tabs . . . . . . . . . . . . . . . . . . . . 821 69 4s Select emphasized mode . . . . . . . . . . . . . . . ,827 70 46 Cancel emphasized mode . . . . . . . . . . . . . . . a27 7l 47 Select double-strike mode . . . . . . . . . . . . . . 8-28 72 48 Cancel double-strike mode . . . . . . . . . . . . . 8-28 74 4A Perform n/W-inch line feed . . . . . . . . . . . . 8-16 75 48 Select single-density graphics . . . . . . . . . . . ,834 76 4C Select double-density graphics . . . . . . . . . . . 834 77 4 D Select 12 cpi . . . . . . . . . . . . . . . . . . . . . . . . . . a23 78 4E Set skip over perforation . . . . . . . . . . . . . . . a14 79 4F Cancel skip over perforation . . . . . . . . . . . ,814 80 50 Sekt iocpi . . . . . . . . . . . . . . . . . . . . . . . . . . a23 81 51 Set right margin . . . . . . . . . . . . . . . . . . . . . .818 82 52 International character set . . . . . . . . . . . . . . 832 83 53 Select superscript mode . . . . . . . . . . . . . . . . 828 83 53 Select subscript mode . . . . . . . . . . . . . . . . . . 828 84 54 Cancel superscript/subscript . . . . . . . . . . . . 8-29

ECg ESCk ESCI ESCP =cq ESCr Esct Escw ESC X

85.5 Unidirectional mode on/off . . . . . . . . . . . . . a10 87 57 Turn double-wide mode on/off . . . . . . . . . .a25 8 9 5 9 Highspeed dbie-dkty ga~hic~ . . . . . . . . a35 90 5A QuadrupJedensity graphics . . . . . . . . . . . . . a35 92 SC Setrefativeprintposition.. . . . . . . . . . . . . . a20 97 61 select justification . . . . . . . . . . . . . . . . . . . . . a30 98 62 Set vertical tabs in channels . . . . . . . . . . . . . a17

103 67 skt 15 cpi .......................... a23 1 0 7 6B Selecttypestylefamily . . . . . . . . . . . . . . . . . a22 1 0 8 6C set left margin . . . . . . . . . . . . . . . . . . . . . . . . al8 112 7 0 Tim proportional mode on/off . . . . . . . . . . a24 1 1 3 n Select character style . . . . . . . . . . . . . . . . . . a29 114 72 Selec

Manualsnet FAQs

If you want to find out how the LQ-2550 Epson works, you can view and download the Epson LQ-2550 Product Information Guide on the Manualsnet website.

Yes, we have the Product Information Guide for Epson LQ-2550 as well as other Epson manuals. All you need to do is to use our search bar and find the user manual that you are looking for.

The Product Information Guide should include all the details that are needed to use a Epson LQ-2550. Full manuals and user guide PDFs can be downloaded from Manualsnet.com.

The best way to navigate the Epson LQ-2550 Product Information Guide is by checking the Table of Contents at the top of the page where available. This allows you to navigate a manual by jumping to the section you are looking for.

This Epson LQ-2550 Product Information Guide consists of sections like Table of Contents, to name a few. For easier navigation, use the Table of Contents in the upper left corner.

You can download Epson LQ-2550 Product Information Guide free of charge simply by clicking the “download” button in the upper right corner of any manuals page. This feature allows you to download any manual in a couple of seconds and is generally in PDF format. You can also save a manual for later by adding it to your saved documents in the user profile.

To be able to print Epson LQ-2550 Product Information Guide, simply download the document to your computer. Once downloaded, open the PDF file and print the Epson LQ-2550 Product Information Guide as you would any other document. This can usually be achieved by clicking on “File” and then “Print” from the menu bar.