Epson LQ-2550 Product Information Guide

LQ-2550 GRAY DOT-MATRIX PRINTER

Ribbon

cartridge

Power cable

Printer Specifications

Printing

Print method: Print speed:

Ouality malt

24-pin impact dot matrix See table below.

CPI

12 AW

10 12

Paper guide

Platen knob

Characterslsecondlline

333

111 133

Paper feed methods:

Paper width:

Paper length:

Paper thickness:

Printable area:

Sing.ie

8.5 mm

3mm

sheet

(0.33’)

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-l/2

15i16

4 X 4 X

15116 l-7116

inches,

Single sheets

3.7 to 14.3 inches

Single

sheets

0.0026 to

OX04

(94

to 364 mm)

inches (0.065 to 0.1 mm)

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

0.0075 inches (maximum 0.19 mm)

Continuous paper

mm f0.12’J

or more

Printing direction:

tine spacing:

Paper feed speed: Printable columns:

Character

exe

IOCPI lOcp! condensed 12CPI

CPI

condensed

Buffer:

Character fonts:

1 EpsmF3wnom 1 lalzlr~

‘orrcr-s

~opaaurWilhSl*MllnKomMOdU~

Bidirectional logic-seeking for text and graphics. Unidirectional available through

SeiecType

or software command.

l/6*, l/B’. or programmable in increments of 1/60th,

l/lBOth

11360th

of an inch

83 msiiine at

See

table below.

l/6’

line spacing

! Maxcmum

! 1

printed characters

136

233

163

272

8 Kbyte

--Characters:

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

IOZ

to hlmm

mm 406 mm 26 mm

fO.51’J

(16.0’)

(1.02’)

f4.0

15.&J

paper width

or more

paper

width

‘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)

Ribbon:

Black ribbon cartridge

17762:

Life expectancy (in Letter Quality 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: Magenta: Yellow

0.7 million

0.5 million

Film ribbon cartridge # 7764:

Life expectancy (at 10 cpi, with bidirectional printing, using 136 columns):

0.1 million’

l This number may vary depending on

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

24-Pin Printers

9/22/89

LQ-2550-1

LQ-2550 GRAY DOT-MATRIX PRINTER

MCBF:

MTBF:

Print head life: Dimensions and weight:

Voltage:

Power consumption: Frequency:

Insulation resistance:

Dlelectri~

Temperaturez

Humi+:

Shock:

Vibration:

strength (between AC line and chassis):

For

all

components excluding print head:

million lines 6000 power-on hours (at

200

million strokes per wire

Height: Width: Depth: 20.4’ Weight: approx. 44

120 VAC + 10%

400

49.5 to 60.5 Hz

ZOM

Can withstand 1.25 kV rms applied for one

minute Operation: 40°F to 95°F

Storage: -22°F to 140°F (-30°C to 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

Operation: Up to Storage: Up to 0.50 G at up to 55 Hz

7.7’

26.6’

watts maximum

ohms between AC power line and chassis

25%

Ibs

(5°C

0.25

G at up to 55 Hz

duty)

to 35°C)

60DC)

Reliability

MCBF

(Mean Cycle Between Failure):

Tempera-

Humidity:

Single

binlandbin2

Width

Length

7.17’ LO 14.3’

(182mm

8.27’ to 14.3’

cmmm

Thickness

Weight: Printable

area :

0.0028’ to 0.0039’

007mm

17 to 22 lb. paper

Operation:

storage:

Operation:

Storage:

sheet

to 364mm)

364mm)

O.lmm)

a-...=..

100.000 cycles

f41”F (+5”C)

( +3s0cj

-22°F

(+7o”c) 15%

to condensation 5% to 90% without condensation

(-30°C)

80%

6.50’ to 9.49’

(166mm

3.62’ to

(92mm

0.0043’ to 0.0205’

(0.16mm 12

to 24 lb. paper

without

envelope

bin1

to 24lmm)

4.09’

104mm)

+95OF

+15BaF

0.52mm)

The Cut Sheet Feeder

26,7’(W)

Dimensions and

Bin capacity:

’

Envelopes can only be used in bin

Stacker capacity: Face down

Face up

weight:

X (mounted on the printer) approx. 13.2 Ibs.

bin

Single sheets. Up to

Envelopes’: Up to 25 (plain and bond type)

bin 2

Single

sheets: Up to

(Total thickness should not exceed 0.59’ or

15mm)

Single sheets:

Envelopes:

Single sheets:

Envelopes:

22.9’(D) x

16.5’(H)

150

Up to (Total thickness should not exceed 0.59’ or

Up to 30 (air mail)

Up to 185 sheets of 17 lb. paper

sheets of 22 lb. paper

185

sheets of 17 lb. paper

15mm)

150

sheets of 22 lb. paper

Up to 60 sheets of 22 lb.

paper

Up to 75 sheets of 17 lb.

paper

Up to 10 (plain and bond

type)

Up to 12 (air mail)

150

sheets of 22 lb.

paper Up

to 185 sheets of 17 lb.

paper

Up to 25 (plain and bond

type) Up

to 30 (air

mail)

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

form settings

Page

Length

Top Margin Bottom Margin

ail

software is set up the

6 6

Cut sheet

feeder settings

22mm

87’)

m*re

LQ-2550-2

9/22/89

24-Pin Printers

LQ-2550 GRAY 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.

f’ii

assignments for the

Conmctor

pin assignments and a description of their respective interface

paralleI

interface

signals are shown in the following table.

kann

SlgM

2 2

2 :

l All interface conditions are based on

STROBE

DATA DATA 2

E ,”

DATA 5

k%;

DATA

?i7TRlm

BUSY

Snld

kc-

lrn

STROBE pulse to read dala rn Pulse

wdth

must be more than 0 5

mrcroseconds

These

the 1st 10 8th bits of parallel data.

respectrvely

when

Iog~alCI.

IL!

OUT

About

a 1 Indicates that and

lhal

more data

OUT A HIGH

cannot

HIGH I”

1) Dunng

Dunng prrntmg

When

14) Durrng prrnler-error

Tn.

OwrriutlMl

Ihe recewrng termrnal

srgnals

represent

Each

dala IS logrcal

recerve

srgnal

1 and LOW when

l~mrrosecond

data

has been

the

prtnter

IS ready lo accept

srgnal lndrcales

data The

the lollowng cases:

data entry

off lrne

level. Both the rise and the

lnformatton

IS at HIGH level

puke.

LOW

recetved

that

Ihe punter

srgnal

goes

(ea

char.

trme)

state.

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

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

pW.

ACKNLG Printing

%Ky

when

Default Settings

The following table shows the

the printer is

initialired.

Item Tap

form pasSlcn

Len

and

right margtns

line spacing

Mbcal

tab

Horrzontal

VFU

Font

Userdehned characlers

posrtions

tab

chanti

selectton

pasllions

default conditions that become valid

Reset lo:

Current paper

SeIecTyve seItw

l/&inch line spacing

cleared

Every eight characters

Channel

Reset to

Hardware: Cleared Software: Deselected only

the

cosdion

current

SelecTwe setting

In addition, the data b&r is cleared when the printer is

initial&d

tumingonthepowerorbysendinganINITsignal.

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 use an application program even if it does not

printer selection menu. If the

LQ-2550 is not listed, select the first printer

lit

the

commar&

LQ-2550

you can

on its

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:

EX FX

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.

‘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

#El43 x8148

X8165

Name New

sew mteriace

lntelllgenr

Inle%gent

send

rnreriace

IEEE-488 Interface

24-Pin Printers

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

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

LQ-2550-3

+ 7 hidden pages