Epson LQ-570 Quick Reference Guide

EPSON AMeRIc& INC.

Product Support Bulletin

EPSON

Subject: Date: 12/4/91

Page(s): 1 of 14

This bulletin provides detailed explainations and illustrations for some of the more commonly used printer commands used in ESC/P2 Listed below are the commands discussed in this bulletin.

Command

ESC X m n1 n2

ESC ( C m1 m2 n1 n1 Set Page Length in Defined Units ESC(v m1 m2 n1 n2 ESC(V m1 m2 n1 n2 ESCtn ESC ( t n1 n2 d1 d2 d3 ESC( A

Understanding and Using

Command Name Select Pitch and Point Size Set Relative Vertical Position

Set Absolute Vertical Position Select Character Table Assign Character Table

nln2d,.

Print Data as Characters

ESCP/2

Commands and Syntax

PSB No: P-0082 Originator: JW

PSB Page

2 5 6 8

9 10 14

PSB No: P-0082 Page: 2 of 14

ESC X m n1 n2

C X m n1 a is

are variables. The

spa&g. The

will always be 0 (zero). The variables

Thevaluesusedfor’m’ateO,l,18,21,24,30,36,4248,60,and72 usedasthevaluefor”m”,therewillbenochangeinpit~.

value far W, the character pitch will be proportional spacing. To determine the character then 360

m=30,

FortheRomanandSansSerifforrts,thevaiueausedfor’nimare0,16,20,TI,24, 28,3238,40,42,44,48,5238,8Oand84. “nlmare0,21,and42 l’heactualpaintsbthatwillprintisnl

example, if When select

the character pitch is 12 characters per inch.

selectina

twof3ortional

variable W” selects the point size and the variable

pit&

divided

nl=20, the

the

command for selecting pitch and point size

vadable W

for

all

other values of

by 60 equals 6 and the character pitch is 6 characters per inch. If

Doirft

wacina

point

size

laraer

tm=ll

(Select Pitch and Point Size)

is used to

In”

and

%I”,

divide 360 by

is 10. tf

than 24

for the

nl=48, the

(the

character me&.

where

select

ForaUotbrfonts,Utevaluesusedfor

the pitch, which is the character

“n2”,

91’

ate explained below.

lf”lVsusedasthe

For example, if

“m”.

didedby2

point

value for nl is treater than

size

is 24.

m, nl and

at this time,

tf’o”is

NOTE:

rn=W

For

In the Basic programming language, the command would look like this.

LPRlf+lT spaced”

Ch6(27)

character size. At this time, n2 is

cHR$(n);*xll;CHRS(l);CHR$(48);~~~(o);”~his is 24 point proportional

is ESC,

cW(l) selects

proportional spacing,

zero (0).

chr$(48)

selects 24 point

PSB No: P-0082 Page: 3 of 14

10 INPUT “Point Siie”;A$ 20 B=VAL(A$)*2 21

RESTORE 70

22FORX=l 23READY

IF B=Y THEN GOT0

25NMTX

26CLS 27 PRINT A$ ” is not a valid point size choice.” 28

GOT0 10 30

C=VAL(A$) 40

LPRM CHR$(27);“X”;CHR$(l);CHR$(B);CHR$(O);”n‘lese

characters”

LPRtNT CHR$(27);“(V”;CHR$(2);CHR$(O);CHR$(C);CHR$(o)

GOT0 10 70

DATA

TO16

are

0,16,20,21,24,28,32,36,40,4~44,48,52,56,60,64

“;A$;”

point

Line 10 -allows you to specify the point size desired. Line 20 tine 21 -check to ensure that a valid point size was input

Line 30 - computes the value for

Line 40

Line 50

Line60-

NOTE: To hatt the program, hold down the

computes the value for

valid, the program jumps to line 30.

program prints a message on the screen and starts over again.

command. sends the “Set

pitch is set for proportional spacing for character spacing regardless of the point size.)

sends the “Set Relative Vertical Position” command to the printer. This

command advances the paper in preparation for printing the next line. causes the program to start again at the beginning.

Pitch

“nl”

in the ESC X command.

“nl ”

for advancing paper using the ESC ( v

and Point

the point size is not valid, the

Size”

command to the printer. (Note: The

ail

point sizes to ensure proper

“CM

key and press the

the point size is

“c”

key.

These are 8 point characters

These are 10 point characters These are 10.5 point characters

These are 12 point characters

These are 14 point characters

These are 16 point characters

PSB No: P-0082 Page: 4 of 14

These

are 18 point characters

are 20 point characters

These are 21 point characters

These are 22 point characters

These are 24 point characters

These are 26 point characters

These are 28 point characters

These are 30 point characters

These are 32 point characters

PSB No: P-0082 Page: 5 of 14

ESC ( C m1 m2 n1 n2 (Set Page Length in Defined Units

ESC ( C ml m2 nl n2 is the command for setting the page length in units where ml,

m2,

nl and n2 are variables. The

othenwise

ml =2 and To determine the values for n1 and n2 perform the following steps.

EXAMPLE

by the “ESC (

m2=0.

Determine the desired page length in inches.

Multiply the page length by 380. Divide the result by 256 using long division.

The remainder in the quotient from step 3 is the value for n1.

The whole number in the quotient from step 3 is the value for n2.

The page length is 8.5

8.5 x 380 = 3060

3080

nl=244 n2=11

divided

l.Y

command. Currently, the values for ml and m2 MUST be

by 258 =11 with

“uniV’

is usually

inches.

l/380

of an inch unless defined

remainder of 244.

In the Basic programming language, the command would look like this.

This command, as listed in the line above, will set the page length to 8.5 inches.

NOTE: The current line becomes the top of form. This command cancels any previously set top and bottom margin settings. margins via software command, the commands must be issued Length in Defined Units” command. The proper page length setting can be confirmed by issuing a “Form Feed” command, control panel while the printer is

chr$(l2),

“Cff Line”.

you wish to set the top and bottom

AFTER

or by pressing the “FF button on the

the

“Set

Page

+ 11 hidden pages