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1073 P T 11-76 4851903

0000664

8

-

Y

I N T E R N A T I O N A L S T A N D A R D

I S 0 1073/11-1976 (E )

A ME N D ME N T

SLIP

Published

1978-02-01

INTERNATIONAL ORGANIZATION

FOR STANDARDIZATION.MEHAYHAPOflHAR

OPTAHHSAUHR

fl0 CTAHf lAPTH3A~HHWRGANlSATION

NTERNATIONALE DE NOR

Alphanu meric character sets for optical recognit ion

-

Part

:

Char

dimensions of the p rin ted image

acter set OCR-B- Shapes and

M O D I F I C A T I O N TO T H E F OR E W OR D Inside f ron t cover)

T h e I S 0 memb er b o d y f o r U.S.S.R. has now approv ed this Internatio nal Standard. U.S.S.R. should therefo re be

included in the l ist of coun tr ies whose member bodies have approved the docum ent.

. ....

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INTERNATIONAL STANDARD

INTERNATIONAL ORGANIZATION FOR STANDARDIZATION -MEXfi YHAPOj lHA R OPrA HK3AUW II no CïA Hn AP TII 3A UHk í .ORGANISATION INTERNATIONALE DE NORMALISATIO

A lph anum eric character

sets

for opt ica l recogn i t ion

-

Part II : Character set OCR-B - Shapes and dimensions

o f

th e pri nt ed image

Jeux alphanumériques de caractères

pour

la reconnaissance opt ique

-

Partie : eu de caractères

ROC-B

Formes et cotes de l image imprimée

First edit ion - 1976-12-01

UDC 681.3.048 Ref. No.

IS0

1073/11-1976 (

Descriptors

:dat a processing, optic al recognitio n, alph anu meri c character sets, OCR-B character sets, specifications, dimensio ns.

-

Price

bàcetFoif:

49

pag

right International Organization for Standardization

ded by IHS under license with ISONot for Resaleeproduction or networking permitted without license from IHS

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1073

P T 11-76

1 48511903

O 0 0 0 6 6 6 L

FOREWORD

I S 0 (the International Organization for Standardization) i s a worldwide federation

of national standards institutes

I S 0

Member Bodies). The work of developing

International Standards is carried out through IS0 Technical Committees. Every

Member Body interested in a subject for which a Technical Committee has been set

up has the right to be represented on that Committee. International organizations,

governmental and non-governmental, in liaison with

ISO,

also take part in the work.

Draft International Standards adopted by the Technical Committees are circulated

to the Member Bodies for approval before their acceptance

as

International

Standards by the IS0 Council.

International Standard

I S 0

1073/11 was drawn up by Technical Committee

ISO/TC 97, Computers and in fo rmat ion processing, and was circulated to the

Member Bodies in May 1975.

It

has been approved by the Member Bodies of the following countries :

Australia Hungary Sweden

Belgium Ita ly Switzerland

Brazil Japan Turkey

Czechoslovakia Netherlands United Kingdom

Denmark New Zealand Yugoslavia

France Romania

Germany South Africa, Rep. of

The Member Body of the following country expressed disapproval of the document

on technical grounds :

U.S.A.

This International Standard, together with IS0 1073/1, cancels and replaces IS0

Recommendation

R

1073-1969.

O

Internat io nal Organizat ion f or Standardizat ion,

1976

Pr inted in Swi tzer land

yright International Organization for Standardization


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INTERNATIONAL STANDARD

IS0

1073/11-1976

(

3073

P T

11-76 4853903 0000667

Alphanumeric character sets for opt ical recog ni t ion -

Part I I

:

Character set OCR-B - Shapes and dimensions

of the p rinted image

1 G E N E R A L

1.1 Scope

This International Standard for character shapes and sizes

i s intended to facili tate and foster the use of Optical

Character Recognition (OCR) n data processing, by defining

character shapes suitable for both human and machine

reading.

It

establishes

a

common basis for printing equipment and

optical scanning equipment for OCR interchange appli-

cations.

Additional International Standards wi ll cover the print

quality and the relevant characteristics of the formats

needed to satisfy interchange requirements.

1.2 Field

of

application

This International Standard specifies the printed image

shapes and sizes of alphanumeric characters, graphics and

symbols designed for use in Optical Character Recognition.

They are also suitable for general purposes.

In order to satisfy present requirements and encourage the

wide extension of OCR applications, two sets of characters

are specified. These are named OCR-A and OCR-B.

Character s e t OCR-A includes the numeric sub-set which

was recommended in draft IS0 Recommendation No. 890

(now part of this International Standard). The shapes of the

characters have been designed to be suitable for use in

many applications of OCR. Dimensions of OCR-A are given

in three sizes. (See part i.)

The shapes of the OCR-B characters have been designed for

use in OCR systems without undue sacrifice of their suit-

ability for general purposes in a wide range of applications.

Dimensions of OCR-B are given in three sizes.

1.3 Definitions

For the purpose of this International Standard the follow-

ing definitions apply

:

1.3.1 OCR-A

:

A repertoire of 69 characters of which 56

are graphics included in the I S 0 7-bit coded character

set

( I S 0 646-1973). It comprises digits, capital letters, capital

national letters and other graphics. (See part i.)

1.3.2 OCR-B : A repertoire of 121 characters comprising

---

digits, capital and small letters,

al l

the graphics specified

the IS0 7-b it coded character

set

( I S 0 646-1973), natio

letters, diacritical signs and further graphics.

NOTES

1 For ap pl icat ions which involve c i rculat ion of docum ents acr

boun dar ies between areas in wh ich di f f erent nat ional characters

in use, agreement between the sender and the rec ipient of

documents is requi red.

2

The met r i c and i nch d imens ions i n th i s In ternat i ona l S tand

are rounded and therefore cons i s ten t bu t n o t exac t l y equa l . E i t

system may be used bu t the two shou ld no t be i n term ixed.

3

I t

i s

recognized that some type-making and pr int ing proces

wi l l no t be able to pro duce sharp corners. Corners not spec i f ied

having a spec i f ic radius should be as sharp as practicable. Howe

i t is n ot necessary for OCR purposes that the radi i of th e corners

the

nominal pr inted image be less than

0,08

m m (0.003

5

2 STYLES

The OCR-B font

(see

clause 13) comprises 121 characte

but, in general, only

a

subset will be used for

a

spec

application.

The character shapes and dimensions are specified by re

ence drawings on

a

reference grid. The nominal strokewid

i s

constant for each character of the standard s e t entit

"constant-strokewidth font"; the centreline of e

character i s indicated

on

the reference grid.

A second style of characters entitled "letterpress font" m

be used with printing equipment which can reproduce f

details wi th sufficient accuracy. For many classes

printers, however, the strokewidth i s less controllable a

therefore for these printers the constant-strokewidth fo

shall be used.

For aesthetic reasons, the strokewidth of the letterpre

font characters

i s

varied deliberately and the stroke endin

are

specially designed. But the centrelines are the same

both fonts and these centrelines, as defined for the consta

strokewidth font, are the definitive part of this standa

3 OCR-BSIZES

3.1

Three sizes are specified for OCR-B characters in ord

to provide for use with a wide range of printing equipm

processing differ ing print quality characteristics. Devi

such as typewriters, cash registers, numbering machin

high-speed printers, and credit card imprinters, besid

printing processes such as letterpress and offset lithograp

are al l suitable.

i



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IS0

1073/ll-1976

(E)

3.2 The letterpress font

i s

specified in

size

I (the smallest)

only.

It

provides the option of a variable pitch between

characters

as is

usual with letterpress.

3.3 The constant-strokewidth font

is

specified in three

sizes, I, I I I and IV. Mechanisms using the constant-

strokewidth font will usually maintain a fixed pitch.

3.4 Size I which was in ISO/R

1073-1 69

has been deleted.

(See annex B.)

3.5 The centrelines for the three sizes are simply related

by appropriate horizontal and vertical scale factors. The

factors for

size

I and size IV referred to size I are :

for

size

III

Vertical :

1,333 Horizontal

: 1,086

for size IV

Vertical : 1,500

Horizontal :

1,500

This scale relationship does not apply to the outline shapes,

since nominal strokewidth i s not strictly proportional to

centreline dimensions. The strokewidths for each size are

shown in the reference drawings.

3.6

The character with the greatest height in each

s ize i s

digit EIGHT. It

i s

the character which extends farthest

above the base line for capital letters. The longest charac-

ter

i s

small letter j, because of

i t s

descender.

The centreline heights of the character

E I G H T

are :

for size :

for s ize I :

for

size

IV :

2,40

mm

0.094

n)

3,20

mm

0.126

n)

3,60

mm

0.142

n)

3.7 The widest character i n each size (except for the

alternative small letter m)

is

digit Z E R O .

I t s

centreline

widths are

:

for

size I

:

for

size

III :

for size IV :

1,40

mm

0.055

n)

1,52mm 0.060n)

2,lO

mm

0.083

n)

3.8 Constant-pitch printing

In constant-pitch printing for OCR applications, the follow

ing minimum nominal pitches are appropriate :

2,54

mm

0.100

n) min.

2,54

mm

0.100

n) min.

3,63mm 0.143n) min.

size

I

:

size I I :

size IV :

4 TYPICAL DIMENSIONS

O F

THE NOMINAL PRINTED

IMAGE

4.1

Constant-strokewidth font

Typical dimensions for the nominal printed image of the

constant-strokewidth font in size I are given below. These

dimensions are the heights above and below the horizontal

base line of digits, capital and small letters, ascenders and

descenders (see figure

1).

These dimensions are for general

information only. The values for individual characters are

obtainable from the reference drawings.

4.2 Letterpress font

The shapes of the letterpress characters are similar except

that the stroke ends are not rounded.

FIGURE

1

-

Heights above and below base l ine

TABLE

1 - ypical d imensionsA, 8 C and D

millimetres

inches

S ize

A B C

D

A B C D

2.66 2.46 1.83 0.60

0.105

0.097 0.072 0.024

2

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I S 0

1073/ll-1976 (E

~

4851903 0000669

073

P T

11-76

5

OCR-B CHARA CTER SET

The fu ll c haracter set comprises 121 characters.

The f ollo win g sub-sets can be distinguished.

5.1 Sub-set 1 : Numeric sub-set

This sub-set comprises 22 characters :

O 1 2 3 4 5 6 7 8 9

< + >

C E N S T X Z

NOTES

1

The character

Z E R O i s

the only digit which had to be modified in this revision of

ISO/R

1073-1969. The use

of

the original design

i s

toler

ated in numeric applications implemented before 1976.

OCR

reading of both old and revised design

is

subject to special agreement betwee

OCR equipment supplier and user. For any application implemented a f t e r 1976, only the new design

is

standard.

2

The characters

C E N S

T

X

Z

should preferably no t be used in document reading applications.

5.2 Sub-set 2

:

nitial alphanumeric sub-set

This sub-set comprises 47 haracters

:

O 1

2 3 4 5 6 7 8 9

A B C D E F G H I J K L M

N O P Q R S T U V W X Y Z

I

1

SPACE

3

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IS 1073/11-1976 E)

_ _ _

2 0 7 3 P T 1 1 - 7 6

5.3 Sub-set 3 : Extended alphanumeric sub-set

This sub-set comprises 98 characters, in particular those of the I S 0 7-bit coded character s e t ( I S 0 646-1973) :

0 1 2 3 4 5 6 7 8 9 : ; < = > ?

@ A B C D E F G H I J K L M N O

A

P Q R S T U V W X Y Z C \ I

-

' a b c d e f g h i j k t m n o

p q r s t u v w x y z 1 Y

SPACE

5.4

Sub-set

4

:

Option s sub-set

This sub-set comprises 8 capital national letters, 5 small national letters, 4 diacritical signs and 4 further characters :

II

I A

4


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IS0

1073/11-1976

1073 P T 11-76

1 8 5 1 q 0 3 0000671

5.5 Sub-set 5 :

Erase characters

This sub-set comprises

2

characters

I

H A R A C T E R E R A S E

G R O U P E R A S E

-

-

Th e dimensions o f these two characters are as shown be low :

U P P E R L I M I T OF U P P ER E D G E

x

B A SE L I N E

~ \ ? 2 û ~ ~ i n ~ m

7,6 m m (0.3 n) min .

_ _ _ _ _ _ _ _ _ _ _ _ _ ~

L O W ER L I M I T O F L O W E R E D G E

B A S E L I N E

--pi7

C H A R A C T E R E R A SE

F I G U R E 2 - Erase characters

GROUP ERASE

T A B L E 2- Dimens ions of erase characters

Size

I

C H A R A C T E R E R A S E

:

max . H

2.9

m i n . 1P

max .

1.9

D

0,13

G R O U P E R A S E :

m i n i m u m l e n g th

7.6

m i n i m u m w i d t h 0.2

a 0.4

b

2

o

m i n .

H

2.4

-

mi l l imet res

Size i i i Size iv

3.8

4.6

2

o

2.8

0.20

inches

Size

I

i ze

I

0.094

0.1 15

0.055

0.075

0.005

0.149

0.181

0.079

0.110

0.300 0.300 0.430

0.008 0.008 0.008

0.016 0.020 0.024

0.077

0.106 0.1 18



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IS0

1073/1 -

1976 (E)

_ _ ~

LO73 P T 11-76

4 8 5 2 9 0 3 0 0 0 0 6 7 2

r

6

I N D E X T A B L E

6.1

Al l

characters are available in size

I as

constant-

strokewidth font and as letterpress font.

Only the characters of the numeric sub-set (sub-set 1 ) and

the character G R O U P

E R A S E

are available in size III as

constant-strokewidth ont.

Al l characters are available in size I V as constant-strokewidth

font, wi th the exception of

V E R T I C A L L I N E .

6.2

In the following index table each character

i s

given

with the indication of the reference drawing or drawings

and the sub-set or sub-sets in which it i s comprised.

The drawings are identified as follows :

L :

for letterpress font, size I

C

: for the constant-strokewidth ont,

s i z e I

I

:

for the constant-strokewidth ont, size

I I I.

6.3

As stated in 11.6, the character shapes for

size

I V are

derived from those of size I for the constant-strokewidth

font (designated by C).

6.4

Application advice

i s

given in the column "Remarks",

where it

i s

indicated, inter alia which characters are in-

cluded for general-purpose use only and should not be used

for

OCR

purposes.

It

i s recommended that prospective users of this standard

consult manufacturers before deciding on a particular

character set.

6



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I S 0 1073/11-1976(E )

_ _

1073 P T 11-76

1 4 8 5 1 7 0 3 0 0 0 0 6 7 4

o r

INDEX

T A B L E

cont inued)

Ref.

No.

12

Name

sets Remarks

rawingís )

No.

hape

12

CAPITAL LETTER

B

2

3

C

13

L, c, III

1

2

3

CAPITAL LETTER

C

3

14

L, c

15

L, c, I I I

CAPITAL LETTER

D

2

3

4

15

16

17

E

1

2

3

CAPITAL LETTER

E

CAPITAL LETTER

F

16

L,

c

l 7 CAPITALLETTER

l 8

I

CAPITALLETTER

18

CAPITAL LETTER

I

l9

2

3

9

20

J

CAPITAL LETTER

J

20

L, c

2

3

~

2

3

21

I

CAPITALLETTER

21

~

2

3

22

I

CAPITALLETTER

22

L

8



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INDEX TA B LE

(continued)

Ref.

No.

Shape

D r a w i n g k )

N o .

Remarks

a m e

Sets

34

L,

c,

I I I

1

2

3

2

3

CAPITAL LETTER

X

34

35

L, c

CAPITAL LETTER

Y

35

36

37

36

L, c,

I I I

1

2

3

CAPITAL LETTER

Z

37

L, c

SMALL LETTER

a

3

Smaller strokewidth, see clause

11.

38

L. c

Smaller strokewidth, see clause 1 1

SMALL LETTER

b

38

39

3

3

39

L. c

SMALL LETTER

C

Smaller strokewidth, see clause 11 .

Smaller stro kew idt h, see clause 11 .

Smal le r s t rok ewid th , see clause 11 .

Smaller strokewidth, see clause I l .


40

L. c

SMALL LETTER

d

SMALL LETTER

e

SMALL LETTER

f

SMALL LETTER

9

40

41

42

43

3

~

3

3

~

3

41

L. c

42

L,

c

43

L, c

44

L.

c

SMALL LETTER

h

44

3

Smaller strokewidth, see clause 11.

10



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3073 P T 11-76

j 4853703 0000677 b

INDEX

T ABL E

continued)

Sets

3

Remarks

ef .

N o .

Shape

Name

W

1

45

L .

c

S M A L L L E T TE R

i

Smal ler s trokewidth,

see

clause 11.

5

rn

J

46

L,

c


j

3

6


see

clause 11.

Smal ler s trokewidth, see clause 11.


4 7

L , c


k

3

7

L

4 8

L , c


I

3

8

4 9

50

51

4 9

L , c


m

3

3

3


5 0

L , c


n


see

clause 11.

~

O

51

L , c

S MA L L L E T T E R

O


see

clause 11.


see

clause 11.



see

clause 11.


P

52

L , c

3

3

52

5 3

L ,

c


4

5 3

54

L , c


r

3

3

54

55

5 5

L , c


S


see

clause 11.



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4 8 5 1 9 0 3 O 0 0 0 6 7 8 r

~

1073

P T

11-76

INDEX T A B L E

cont inued)

Sets

Ref.

No.

56

57

Drawing(s1

No.

N a m e

hape

Remarks

Smaller str ok ew idt h, see clause

1 1

56

L, c

SMALL LETTER

t

3

57

L,

c

SMALL LETTER

U

3

Small e r s t rok ewid th ,

see

clause 1 1

V

58

L, c

SMALL LETTER

v

58

3

Smal le r s t rok ewid th , see clause 1 1

59

L, c

SMALL LETTER

W

59

Smaller strokewidth, see clause I l

I

3

3

60

L, c

SMALL LETTER

X


0

61

61

L, c

SMALL LETTER

Y

Y


Smal le r s t ro kewid th ,

see

clause 1 1

62

L, c

SMALL LETTER

3

2

63

64

65

L

63

L, c

2

3

~

1

2

3

ASTERISK

PLUS SIGN

HYPHEN

(MINUS SIGN)

64

L, c, III

65

L, c

2

3

66

L,

c

2

3

6

EQUALS SIGN

12



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1073 P T 11-76

1 851903 0000679 Öl-

INDEX

T ABL E

cont inued)

Ref.

No.

Shape

Drawingís)

No.

Name

Sets Remarks

/

67

L.

c

2

3

67

SOLIDUS

68

L, c

FU LL STOP

(PER IOD)

2

3

2

3

3

68

69

70

69

L, c

Two vertical locations are specified, one o f which projec

below the base line for capital letters

(see 11.4

and

11.

OMMA

70

L,

c

COLON

71

L,

c

I

Tw o vertical locations are specified, one o f which projec

below the base line fo r capital letters

(see 11.4

and

11.

1

3

3

SEMI-COLON

QUOTATION MARK

72

L,

c

Can be replaced by DIAERESIS (Ref.

107) in

non-OC

applications,

if

it

i s

required to print QUOTATIO

MARK and DIAERESIS with

the

same type-fa

(see

7 . 2 ) .

72

73

73

L,

c

~~ ~ ~~ ~~

Can be replaced

by

ACUTE ACCENT (Ref.

1 0 8 )

non-OCR applications,

i f it

is required t o pri nt APO

TROPHE and ACUTE ACCENT with the same typ

face (see

7.2) .

APOSTROPHE 3

74

L, c

DISCONTINUOUS

UNDERLINE

For OCR this character shall be used as stand alo

character on ly, and shall no t be printed under anoth

character (see clause

8 ) .

74

3

75

L,-c

3

I

75

QUESTION MARK

3

76

L, c

I

EXCLAMATION MARK6

77

3

3

77

L, c

LEFT

PARENTHESIS



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I S 0

1073/11-1976

(E)

LO73 P T 11-76 465L903

0000680 6

INDEX T A B L E (continued)

Remarks

hape

D r a w i n g k )

No.

Name

ef.

No.

78

79

80

81

Sets

78

L. c

R I GH T

PARENTHESIS

3

2

3

2

3

79

L , c, I I I

LESS THA N SIGN

8 0

L,

c , I I I

GR E A T E R T H A N

SIGN

81

L ,

c

LEFT SQUARE

BRACKET

3

1

82

L , c

RIGHT SQUARE

BRACKET

2

3

%

83

L, c

PERCENT SIGN3

84

85

3

3

Smal ler strokewidth, see clause 11 .

Smal ler strokewidth, see clause 11 .

84

L. c

NUMBER SIGN

AMP

E

RSAN

D

85

L , c

3

86

L , c

6

87

C O M M E R CI A L A T 3

3

Smaller str okew idt h, see clause 11 .

A

87

L, c

Can be replaced

by

C I R C U M F L E X A C C E N T ( R e f . 110)

in non-OCR appl icat ions, i f i t i s requ i red to p r in i

U P W A R D A R R O W H E A D a n d C I R C U M F L E X A C C EN T

wi th the same type face (see

7.2) .

UPWARD ARROW

H E A D

88

L. c

88 CUR R ENCY SIGN 3

14


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8/10/2019 ISO 1073-2 2519.pdf


1073

P T

11-76 I 851903 0 0 0 0 6 8 1 8

INDEX T ABL E conrinuedl

Ref .

No.

_ _ _ ~

Drawing(s1

No.

hape

Name Sets

Remarks

f

89

L,

c

3

3

3

1

2

3

89

POUND SIGN

DOLLAR SIGN

VERTICAL LINE

LONG VERTICAL

MARK

90

L, c

90

91

91

L,

c

See c lause 10 .

~~

See

clause 1

O.

92

L, c, I I I

92

\

93

L, c

93

REVERSE SOLIDUS 3

94

L, c

CAPITAL LETTER

A

Where poss ib l e, subs t i tu t i on by the t wo cap i ta l l e t te rs

(Ref . 11) and E (Ref . 15) is recommended fo r

OC

4

4

4

95

L,

c

CAPITAL LETTER

A

95

96

96

L,

c

CAPITAL LETTER

E

4

0

97

L, c

CAPITAL LETTER

6

Where poss ib l e, subs t i tu t i on by the t wo cap i ta l l et te rs

(Ref. 251 and

E

( R e f . 1 5 ) i s recommended fo r OC

7

98

99

4

0

98

L,

c

CAPITAL LETTER

0

4

m m

U

99

L, c

CAPITAL LETTER

Where poss ib l e, subs t i tu t i on by the tw o cap i ta l l et te rs

(Ref . 31) and E (Ref . 151

i s

recommended fo r OC

U

.

< ' i

,

' < ,



8/10/2019 ISO 1073-2 2519.pdf


I S 0

1073/11-1976 (E)

INDEX TA B LE

cont inuedl

Ref.

N O.

1

O0

101

102

103

104

105

106

Sets

Remarks

rawing(s1

No.

Shape Name

CAPITAL LETTER

DUTCH IJ

1

O0

F o r OCR purp ose, separate capi tal let ters I (Ref. 19) anc

J

( R e f .

20)

hould be used.

101

L,

c

CAPITAL LETTER

N

SMALL LETTER

8

4 l

102

L, c

4

Smal ler s trok ewid th, see c lause 1 1

103

L, c

SMALL LETTER

æ

SMALL LETTER

4

SMALL LETTER

DUTCH

i i

104

L, c

105

L,

c

0

106

L, c

SMALL LETTER

GERMAN DOUBLE

s

4

4

4

3

4


II

107

L, c

For use see clause

7 .

07

108

1

o9

DIAERESIS

ACUTEACCENT

GRAVE ACCENT

108

L,

c

For use

see

clause

7 .

1

o9

L, c

Fo r use see clause

7 .

A

110

110 CIRCUMFLEX ACCENT

For use

see

clause 7.

-”

-

16



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IS 0 107Z/l

I -1

976

LO73 P T 11-76

1

4851903 0000683

I

INDEX TABLE

concluded)

Sets

4

Ref.

No.

Remarks

Shape

Drawingís)

No.

Name

111

L, c

TILDE11

For use

see

clause

7.

For use

see

clause

7.

Use is not recommended for OCR.

112

L, c

4

112

113

CEDILLA

c

113

L, c

LEFT

CURLY BRACKET

114

L, c

RIGHT

CURLY BRACKET

Use

is

not recommended for OCR.

114

115

115

L , c

ALTE RNAT VE

SMALL LETTER

m

May be used i n variable-pitch printing

as a

substitu

for Ref. 49.

116

L, c

CONTINUOUS UNDERLINE i s not intended for us

I t s

width must

be

such that adjacent CONTINUOUS OC

UNDERLINES have no gap between them. See clause

CONTINUOUS

UNDERLINE

16

117

118

No

drawing

SPACE is a non-printing character. For definition,

clause

9.

Not al l readers wi ll necessarily recognize SPAC

PACE

118

L, c

PA RAG RAPH

YEN SIGN

Y

119

L, c

4

19

CHARACTER

ERASE

No

drawing

L, c

120

121

5

5

No

drawing

L,

c,

III

GROUP ERASE


8/10/2019 ISO 1073-2 2519.pdf


IS0

1073/11-1976

(E)

7 USE O F DIACRIT ICA L S IGNS

7.1 Besides the specially designed national letters (sub-

set 4) a number of diacritical marks are provided which

have been designed and positioned in such a way that they

can be combined with small letters in order to modify or

stress their meaning. These are :

C I R C U M F L E X A C C E N T

íref. 110)

G R A V E A C C E N T

íref. 109)

A C U T E A C C E N T

(ref. 108) r

T I L D E

(ref. 111)

C E D I L L A

(ref. 112) I

D I A E R E S I S

(ref. 107) 8 8

The relative position of the accent and of the letter i s

obtained by superimposing the horizontal and vertical axes

of the two graphics concerned. Accented letters can be

obtained as shown in figure 3. For OCR purposes, the

superposition of an accent on a character shape must be

done very accurately. Composite characters may be printed

in

a

single operation or in two operations. Prospective users

should consult manufacturers before planning inclusion of

accented letters in OCR character sets.

II

A

a o

l

F I G U R E 3 - Examples

of

accented letters

7.2

Ir:

non-OCR applications the

D I A R E S I S , A C U T E

A C C E N T

and

C I R C U M F L E X A C C E N T

may be used as

freestanding characters, to mean Q U O T A T I O N M A R K S ,

A P O S T R O P H E

and

U P W A R D A R R O W H E A D

respectively,

thereby reducing the to tal number of characters required.

For OCR, however, this practice is not recommended and

the proper designs must be used (ref. 72, 73 and 87) for

these three characters.

8

USE

OF

THE

TWO

U N D E R L I N E C H A R A C T E R S

Two characters are provided for underlining :

D I S C O N T I N U O U S U N D E R L I N E

(ref. 74)

-

C O N T I N U O U S U N D E R L I N E

(ref. 116)-

The latter,

C O N T I N U O U S U N D E R L I N E ,

i s not intended

for use in OCR applications. The character

D I S C O N T I N U -

O U S U N D E R L I N E shall be used in OCR applications as

a

free-standing character only, and shall not be printed under

another character.

D H

1 9 2 5

F I G U R E 4 - Example

of use

of D I S C O N T IN U O U S U N D E R L I N E

9 SPACE (no reference drawing)

The character

S P A C E

is an intentionally blank position in a

line of pr inting. With constant-pitch printing, i t s nominal

width is equal t o the pr inting pitch (for example, 2,54 mm

if the characters are printed 10 per 25,4 mm). With variable-

pitch printing, i t s nominal width i s equal to the largest

character pitch available.

1 0 V E R T I C A L L I N E A N D L O NG V E R TI C A L M A R K

Both the V E R T I C A L L I N E (ref. 91) and the L O N G V E R -

T I C A L M A R K

(ref. 92) are vertical lines but they differ in

minimum height,

as

given in table 3.

T A B L E 3 - Dimensions of V E R T I C A L L I N E an d L O N G V E R T I C A L M A R K

mil l imetres inches

Size

I

Size

III

Size

IV

Size

I

Size

I I I

Size

IV

~

Height

of

V E R T I C A L L I N E

3.2

0 . 1 2 6

M i n i m u m h e ig h t o f L O N G

V E R T IC A L M A R K

3.7

5.0 5 .6 0 .146 0 .196 0 .220

Nomina l s t rokewid th

o f

V E R T I C A L L I N E an d L O N G

V E R T IC A L M A R K

0,35

0,38 0.50 0 . 0 1 4 0.015 0.019

N O T E

-

T h e c h ar ac t er V E R T I C A L L I N E

s

avai lable in size

I only .



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I S 0

1073/ l I -1976

.

LO73 P T

The character

V E R T I C A L L I N E

has been introduced

specifically for high-speed or other printers, to allow them

to print the character allocated to the position 7/12 of the

I S 0 7-bit coded character se t

(IS0

646-1973).

When required by a reading application, the

L O N G V E R -

T I C A L M A R K

can be allocated the same code combination

(7/12)

as

V E R T I C A L L I N E .

For the purpose of character

spacing, both characters shall be considered as a full-width

character.

11

CHARACTER SHAPE DEFINITION

11.1 Reference drawings

The shapes and dimensions of the OCR-B characters for

both the letterpress and the constant-strokewidth fonts

are specified by original drawings for

size

I

and

I I.

The characters are drawn

a t

scale 100 : 1 on a 2 mm square

grid. The total grid measures 280 mm x 380 mm. For the

purpose of illustrat ion in this standard, some of these

original drawings have been reduced to approximately

70 xfull size. Gride readings should be made only from

drawings on stable material. Photographic reproductions

of drawings printed on paper are not satisfactory for

this purpose - the dimensional stability of paper i s not

sufficient.

Points on the reference drawing can certainly be determined

with an accuracy of half

a

square (10pm

a t

full size), and

if desired one-quarter of a square (5 pm a t full

size)

should

be possible. The number of readings taken on

a

character

further determines the accuracy of the work drawing.

11.2 Availabili ty of duplicates

Duplicates of the original drawings on

a

stable base a t exact

100

:

1

scale

with the 280 mm ~ 3 8 0 m grid can be

obtained upon request. Reproduction and mail ing costs

only will be charged.

Requests with precise indication of the set(s) desired should

be addressed to :

The Secretary General

ECMA

114, rue du Rhône

Switzerland

CH-I204 GENEVA

or

Office of Standard Reference Materials

Room B311, Chemistry Building

National Bureau of Standards

Washington (D.C. 20234)

U.S.A.

The following sets of drawings are available

:

OD 1.

OD 2.

Letterpress font, size I (Only from ECMA.)

Letterpress font, size I with the grid remov

over approximately

2

mm around the charac

outline. This

set

i s particularly suitable

photographic reduction. (Only from ECM

Constant-strokewidth ont,

size

I.

Constant-strokewidth ont, size 1 1 1

OD

3.

OD 4.

11.3 Type dimensions

Attention i s called to the fact that since this stand

specifies the nominal printed images, the type should

necessarily be cut to these dimensions. Type dimensio

should be deduced from the nominal printed images af

due correction for the systematic effects occurr ing in

printing process.

11.4 Constant-strokewidth ont,

size

I

11.4.1 The nominal printed image of each characte

defined by

i t s

centreline and

by

i t s nominal strokewid

The nominal strokewidth i s :

0,35 mm (0.014 in) for most of the characters,

0,31 mm (0.012 in) for a l l small letters and the thr

characters

#,

%and@.

The centreline and preferred line endings and corners

given in drawings marked

"C".

Pointers establish the ve

cal

position (base line) and the orientation. Another poin

establishes the horizontal posit ion for fixed-pitch printi

Reference drawings 69 C and 71 C contain also pointers

indicate alternative positions.

11.4.2

A special effort should be made in type design a

manufacturing to arrive a t actual print that conforms

closely as possible to the given line endings and corne

This i s especially important for the square corners

capital letters B and D.

11.4.3 A pointer is provided to produce the most aesth

spacing of characters in a line of printing. However,

printers having a significant horizontal spacing tolerance

i s recommended to use the geometric character centrel

instead of the line defined by the pointer where necessa

to achieve an acceptable character separation.

11.5 Constant-strokewidth ont, size 1 1 1

The nominal printed image of each character i s given

i t s centreline and by i t s nominal strokewidth. The nomi

strokewidth i s 0,38 mm (0.01 5 in). The 22 referen

d ra wi ng sf orû -I 2 3 4 5 6 7 8 9 < + > L O N G

V E R T I C

M A R K c E N ST X Z and G R O U P E R A S E are mar

I I and include pointers. Sub-clauses

1

1.4.2 and 11.

also apply.



8/10/2019 ISO 1073-2 2519.pdf


I S 0 1073/ll-1976

(E)

11.6

Constant-strokewidth ont, size IV

The nominal printed image of each character i s given by

i t s centreline and by i t s nominal strokewidth. The

size

IV

centreline is derived from the corresponding size I

centreline (see 11.4 and reference drawings marked

“C”)

by a linear magnification

of

exactly 1,5. For example,

a

character centreline width of 2,40 mm becomes

1,5 x2,40 mm

=

3,60mm in

size

IV, and so on. The

nominal strokewidth

i s

:

0.50 mm (0.020 in) for most of the characters

0,44 mm 0.0¡7 n) for a l l small letters and the three

characters#, % and @.

Preferred line endings and corners cannot be accurately

arrived

a t

by a 1,5 magnification since the ratio of nominal

strokewidths for size I V and

I

is not exactly 1,5. However,

given a 1 5 magnification of the size I drawing, the nominai

size IV constant-strokewidth image can easily be

constructed.

20’73 P T

1 I 7 6 71851903

0000b8b

7

I

11.7 Letterpress font, size I

The nominal printed image of each character is drawn on a

reference grid (see 11.l o allow readings with any desired

accuracy from drawings marked

” L ” .

Pointers establish the

vertical position (base line), the orientation and for letter-

press type the body width. A pointer establishes the hori-

zontal position for fixed-pitch printing. Reference drawings

69 L and 71 L contain also pointers, to indicate alternative

positions.

The characters of the letterpress font are designed with

minor strokewidth variations. However, strokewidths are

always close to the nominal value of 0,35 mm (0.014 in)

for digits and capital letters, and of 0,31 mm (0.012 in) for

small letters and the three characters#, % and @.

12

PRINTING THE LETTERPRESS AND CONSTANT-

STROKEWIDTH FONTS

In order to print the letterpress font and to achieve the

most satisfactory appearance, the printing device should be

able to print sharp corners and to keep the strokewidth

variations under close control. These features are not

required for printing the constant-strokewidth fonts,

although a special effort should be made to produce sharp

corners in the capital letters B and D.There may well be

printing equipment in which the accuracy of strokewidth

control i s intermediate between that required in letterpress

quality and that provided by, for example, high-speed

printers. It i s a t the discretion of the manufacturers of such

printing equipment to design their type

so

that the printed

images incorporateas many as practicable of the strokewidth

variations which contribute to the aesthetically satisfactory

appearance of the letterpress character shapes.

Care should be taken that the printed image strokes are

symmetrically distributed around the centrelines as speci-

fied in this document.

13 ILLUSTRATION OF OCR-B

The following drawings show :

- the complete character set in

size

I a t scales 4 :

1

and

1

:

1;

- digit ONE, capital letter E, P A R A G R A P H and

Y E N

in size I

as

letterpress font and as constant-strokewidth

font;

- digit O N and capital letter E n size

III

as constant-

strokewidth font.

These reproductions of the original drawings are approxi-

mately a t

scale

70 : 1.

20



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-1976 (E

LO73 P T 11-76 4851903

0000687

ILLUSTRATION OF

SIZE I

S C A L E

4 : 1

O 1

2 3 4 5 6 7 8 9

A B C D E F G H I

J

K L M


a b c d e f g h i

j

k l m

nopq

r

s

t u v w x y z

I I

I

I

-

+ - -

I =

A

?

O< > L I% #&@

Ip BBIJNÖØÜ

EI æ ij ß § Y

II

I \

A

C3m

- ,

SPACE

S C A L E

1

:1

0 1 2 3 4 5 6 7 8 9

A B C D E F G H I

K L M


a b c d e f g h i j k t m

n o p q r

s

t

u v w x y z

* + - = / . , -

?

O< >C I% #&@

¤ f i i \

ABÆIJ

Ñ Ö 0 Ü

â æ i j o ß §

Y

O m

I -

.

I

I I , _ -

-

(3


ded by IHS under license with ISO Not for Resaleeproduction or networking permitted without license from IHS

8/10/2019 ISO 1073-2 2519.pdf


_.._..

......

......

_..-..

......

......

......

......

......

..

. . . .

.....

1

..

;L ~ ~ ~

_il

.....................

.......................

...........

. t.

..

................

. . * * ~ * * . . ..

C l * * * *.

* * - * * + f

t .> f

-+***

f f

pE

-te+

... , :

t r :



- - ` , ,

` ` ` , , , ,

` ` ` ` - ` - ` , ,

` , ,

` ,

` , ,

` - - -

8/10/2019 ISO 1073-2 2519.pdf


REF.

DRAWING

NR.15


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REF.

DRAWING

NR.

I

18



8/10/2019 ISO 1073-2 2519.pdf


I

REF.

DRAWING

NR. ii9---~

\



8/10/2019 ISO 1073-2 2519.pdf

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G17F T



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DRAWING

NR.

15

SIZE/

I

/

.

~

--


--`,,```,,,,````-`-`,,`,,`,`,,`---

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DRAWING NR.

I l 8

- .

-*-

S17F I


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REF.

DRAWING NR. 119


--`

, ,` ` ` , , , ,` ` ` ` -` -` , ,` , ,` ,` , ,` ---

8/10/2019 ISO 1073-2 2519.pdf


DRAWINC,

NR.

I

SIZE III

1;

1

LO73 P T 11-76

4 8 5 2 9 0 3

0000696

O



- - ` , ,

` ` ` , , , ,

` ` ` ` - ` - ` , ,

` , ,

` ,

` , ,

` - - -

8/10/2019 ISO 1073-2 2519.pdf


--


--` , ,` ` ` , , , ,

` ` ` ` -` -` , ,` , ,` ,` , ,` ---

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LO73 P T 11-76

ANNEX A

(not part of the standard)

OLD DESIGN

OF

DIGIT

ZERO

The character

Z E R O i s

the only numeral which had to be modi fied in this revision of ISO/R 1073-1969. The use of

original design is tolerated in numeric applications implemented before October 1976. OCR reading of both old and revis

design

i s

subject to special agreement between OCR equipment supplier and user. For any application implemented a

1976, only the new design i s standard.

The following illustrat ion shows the letterpress font and the constant-strokewidth ont of digit Z E R O in size I

a t

scale 30

and the centreline of the constant-strokewidth ont in size I also

a t

scale 30 : 1.

Letterpress font

The nominal printed image of the character

i s

described by

a

series of points on the character outline, numbered from 1

onwards. Two additional reference points numbered 1 and 3 are provided together wit h a vertical reference line 2. Refere

points 1 and 3 establish the vertical posit ion, the orientation and the width. Reference line 2 establishes the horizon

position for printing pitch. All the points are described in a rectangular co-ordinate system. To avoid negative co-ordinat

the points

1

and 3 are given the positive vertical ordinatey

=

2 O00 pm and the reference line 2

i s

given the positive absci

x =

2

O00

pm. The

size I

character outline

is

defined by

x1

and

y , .

Constant-strokewidth ont

The nominal printed image of the character

i s

defined by i t s centreline and by

i t s

nominal strokewidth 0,35 rnm for size I a

0,38 mm for

size I

The character centreline i s described by a series of points numbered from 11 onwards.

The

size

I

character centreline i s defined by

x1

and

y l .

The size III character centreline is defined by x3 and y 3


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1

2000. 840

2 1363.2000

3 2000.3143

li

3357.1363

12 3663.1387

13 3923.1440

14 4167.1523

15 4380.1657

16 4507.1827

17 4533.2017

lê 4473,2217

19 4340.2367

20 4123.2490

21 3897.2560

22 3653.2607

23 3357.2617

24 3053.2603

25 2770.2557

26 2533.2480

27 2310.2350

28 2173.2180

29 2130.1990

30 2173.1800

31 2310.1643

32 2543.1507

33 2793.1430

34 3080.1377

1 0 1

3360.1173

102 3687.1197

103 3957.1250

104

4227.1353

105 4487.1523

106 4653.1763

107 4693,2017

108 4617.2300

109 4433.2510

110

4180.2653

111

3927,2747

112 3663,2790

113 3357.2810

114

3043.2797

110 2733.2740

116 2470.2643

117 2217.2490

fi8

2030.2260

120 2027.1743

119

1973.1990

121 2193.1517

122 2460.1350

124 3050.1187

123 2743,1247

1 741,2000

2 2000.1151

3 3241.2000

11

1309.3809

12 1334.4218

13 1392.4564

1 4 1482.4889

15 1627.5173

16 1812.5342

17 2018.5378

19 2398.5120

18 2235.5298

20 2532.4831

21 2608.4529

22 2659.4204

23 2670.3809

24 2655.3404

25 2604.3027

26 2521.2711

27 2380.2413

28

2195.2231

29 1989.2173

30 1783.2231

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

Y i xi2

i 5 3 7 0 3 000

3357 1557

3647.1573

3893 1620

4103 1693

4270.1790

4353.1893

4373.2013

4243.2220

4070.2317

3870 2373

4330 2130

3647.2410

3363,2427

3063.2420

2803.2377

2593 2317

2403.2210

2290 1993

2423.1767

2310.2097

2330 1863

2627.1667

2843.1607

3103.1567

Ob

31 1613.2413

32 1464.2724

33 1381.3058

34 1323.3440



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I

I

--

I

1

I

I

--

I

-1-

2

I

I

I

--


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1073

P T

11-76

I

851903

0000701 0 F

I S 0 1073/11-1976

ANNEX B

(no t part of the standard)

EXISTING APPLICATIONS USING FORMER SIZE

II

W I T H F OR MER F ON T D E S IGN OF T H E T E N D I G I T S

This annex i s not part of the standard; it i s presented for information only.

The previous version of this International Standard ( ISO/R

1073-1969)

ncluded a size which has been removed from

present edition.

However, some long-term numeric applications have in the meantime implemented the ten digits in size II and their existen

must be recognized for

a

long period after the issue of this edit ion of the standard.

Those applications, initiated before

1976,

may be considered as standard, as far as they conform to the specification, cha

and drawings given in the following pages. An application such as the printing of transferable securities (shares, bonds)

plemented prior t o

1976

s

entitled to continue even for new bonds issued after

1976.

For any application implemented after

1976,

nly sizes I, III and I V with the new font design are standard.

Use of

co-ordinate ables and reference point drawings

The nominal printed image

of

each character i s defined by i t s centreline and by i t s nominal strokewidth.

The character centreline

i s

described by a series of points numbered from 1 1 onwards. Two additional reference points nu

bered 1 and

3

are provided together with

a

vertical reference line 2.

Reference points

1

and

3

establish the vertical position, the orientation and the set-width. Reference line

2

establishes

horizontal position for printing pitch. All the points are described in a rectangular Co-ordinate system. To avoid negative

ordinates, the points l and

3

are given the positive ordinate y = 2

O00

pm and the reference line 2 i s given the posit

abscissax = 2 O00 pm. Character centrelines are established for size I by x

and y 2 . The nominal strokewidth i s 0,35mm



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I073

4

i

-+

~-

48

1

0000702

I


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L.C..

/22

c

~.

----

1073 P T 11-76

I

851903 0000703

1.c = 130

2

I

t i

l

4

4



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LO73 P T 11-76 4851903 0 0 0 0 7 0 4

L.C=

y31

2

50

2



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_ -

CHARACTER

-- O

N Y 1

X 1 2

Y2

1 2 0 0 0 .

8 4 0 , 2 0 0 0 ,

2 i ? Y 3 e 2 0 0 0 , 1 2 5 7 e

3 2 0 0 0 ~ 9 1 4 3 ~ 2 0 0 0 ~

li 3 5 7 . 1 3 6 3 , 3 5 5 6 ,

12 3 6 6 3 . 1 3 8 7 o 3 9 1 4 ,

13 3 9 2 3 . 1 A 4 0 , 4 2 1 7 .

1 4

4 1 6 7 , 1 5 2 3 , 4 5 0 1 .

1 5

4 3 8 0 . 3 , 6 5 7 , 4 7 5 0 *

1 6 4 5 0 7 . 1 8 2 7 e 4 8 9 8 e

17 4 5 3 3 , 2 0 1 7 , 4 9 2 9 .

18

4 4 7 3 , 2 2 1 7 , 4 8 5 9 ,

1 9 4 3 4 0 , 2 3 6 7 , 4 7 0 3 ,

2 0

4 1 2 3 , 2 4 9 0 * 4 4 5 1 ,

1 6

2 9 $ 3 * 1 6 I . ? , S O 7 4 ,

1 7

3 0 9 7 . f Y 9 3 , 3 2 5 3 ,

1 8

3 2 4 0 * 2 0 0 3 , 3 4 2 0 ,

1 9 3 4 0 7 * 2 2 3 0 * 3 6 1 4 ,

2 0 3 5 5 7 , 2 4 2 0 , 3 7 8 9 ,

2 1 3 7 1 7 . 2 5 5 0 , 4 0 1 1 ,

2 2 4;O O 3

2 6

O 3

9 4

3

3

1

23

4 2 4 7 * 2 5 4 7 , 4 5 9 4 ,

25 4 5 1 3 * 2 1 2 3 t 4 9 0 6 ,

2 4

4 4 2 7 . 2 3 8 0 , 4 e 0 4 ,

2 6

4 5 1 7 . 1 8 1 0 , 4 9 0 3 ,

2 7 4 4 4 9 , 2 5 3 7 , 4 8 2 0 ,

21

3 8 9 7 . 2 5 6 0 . 4 1 8 6 ,

2 8

4 3 4 3 . 1 3 4 0 . 4 7 0 7 .

2 2 3 6 5 3 . 2 6 0 7 , 3 9 @ 2 ,

23 3357.2617,35561

2 4

3 i l 5 3 . 2 6 0 3 , 3 2 0 2 ,

CHARACTER

- 3-

25

2 7 7 2 . 2 5 5 7 , 2 8 7 2 .

. N Y i

X l 2 Y 2

26 2 5 5 3 . 2 4 8 0 . 2 5 3 6 .

2 7 2 3 1 0 . 2 3 5 0 . 2 3 3 5 ,

2 8

2 1 ' 7 3 . 2 1 8 0 . 2 1 7 6 .

2 9 2 3 3 0 . 1 9 9 0 . 2 1 2 5 .

30 2 1 7 3 e 1 8 0 0 , 2 1 7 6 ,

3;- 2310. 6 4 3 . 2 3 3 5 ,

3 2 2 5 4 3 . 1 5 0 7 , 2 6 0 7 ,

33 2 7 9 3 , 1 4 3 0 , 2 8 9 9 ,

3 4 3 0 8 0 , 1 3 7 7 , 3 2 3 3 ,

CHARACTER -

N Y I X I 2 Y2

I

0 . O 0 . 1 0 7 8 e 2 0 0 0 ~

i

1 3 4 8 . 2 0 0 0 , 1 2 1 0 ,

3 2 0 0 0 . 2 ? 5 8 , 2 0 0 0 ,

11 2 1 3 6 . 2 1 1 2 , 2 1 3 4 ,

12

3 9 1 1 . 2 1 3 8 . 4 2 0 3 ,

1 3

4 5 1 l e 2 1 5 0 , 4 9 û 3 .

1 4

4 5 1 2 , 2 0 3 3 , 4 9 0 4 .

1 5

4 2 0 6 , 1 6 7 5 , 4 5 4 7 ,

CHARACTER -

N Y 1 XP2 . Y2

1. .

2

1

2 0 0 0 ,

8 0 9 , 2 0 0 0 ,

2

1 3 3 8 . 2 0 0 0 , 1 , 2 2 8 .

3

2 0 0 0 e 3 0 2 9 e 2 0 0 0 ~

11

2 2 3 4 . 1 1 7 9 , 2 2 4 6 ,

12

2 1 8 1 . 1 3 4 2 , 2 1 8 4 ,

13

2 1 4 8 . 1 5 1 9 * 2 1 4 6 ,

1 4

2 1 2 8 * L 6 7 9 , 2 1 2 2 e

13

2 1 4 2 . 1 8 9 2 , 2 1 3 ¿ 3 ,

3.6

2 î 9 2 2 09 5

a

2197

1 7

2 2 8 9 , 2 2 5 9 , 2 3 1 0 ,

1 9

2619*2508*2696,

2 0

2 8 1 2 * 2 5 4 1 , 2 9 2 1 ,

1 8 2 4 2 9 . 2 4 1 5 , 2 4 7 4 ,

2 1

3 0 2 6 , 2 5 1 7 , 3 1 7 0 .

2 2

3 2 1 2 , 2 4 3 7 , 3 3 6 6 ,

2 3 3 3 4 5 . 2 2 9 0 1 3 5 4 3 ,

2 4 3 4 3 2 i 2 1 1 0 . 3 6 4 4 ,

25

3 4 8 2 . 1 9 3 3 * 3 7 0 2 ,

26

3 7 1 5 , 1 8 3 6 , 3 9 7 4 ,

2 7 3 9 1 2 , 2 0 2 6 , 4 2 0 4 ,

2 8

4 0 2 2 * 2 1 2 9 . 4 3 3 2 .

2 9 4 3 7 2 * 2 4 6 2 , 4 7 4 1 ,

30

4 4 8 6 . 2 4 5 9 . 4 a 7 3 .

3 1 4 4 8 5 , 1 90 5 ,4 8 7 2 ,

3 2

4 4 8 7 . 1 1 8 9 , 4 8 7 5 ,

3 3

3 5 2 4 . 1 6 5 3 , 3 7 5 2 ,

1073 P T 11-76 4851903 0000706

1. 2 0 0 0 .

9 3 0 2 0 0 0

2 1 3 4 3 , 2 0 0 0 , 1 2 3 4 ,

3 2 o n o . 3 n 6 7 . 2 8 0 ~ .



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CHARACTER -

N

Y i X I 2 Y2

CHARACTER -

N

Y i

xi2 Y2

11

4 4 8 7 . 2 5 3 7 . 4 8 7 4 ,

1 2 4 4 9 3 , 16 6 7 , 4 88 2 ,

1 3 4 4 8 7 . 14 9 3 , 4 87 4 ,

1 5

3 7 6 7 , 1 4 5 3 , 4 0 3 4 ,

1 4 4 3 4 3 , 1 4 8 3 , 4 7 0 7 1

1 6 3 6 0 3 , 1 4 4 3 , 3 8 4 4 ,

1 7 3 6 1 .3 . 1 62 3

,

8 5 6 ,

1 8 3 5 9 7 , 1 8 3 3 , 3 8 3 6 ,

19 3 5 6 3 , 2 0 4 3 , 3 8 2 1 ,

2 0

3 5 0 0 e 2 2 5 3 v 3 7 2 3 ,

2 1 3 3 6 0 .2 4 2 3 . 35 6 0 ,

2 2 3 1 6 0 , 2 5 2 7 , 3 3 2 7 ,

2 3 2 9 2 3 1 2 5 5 3 , 3 0 5 1 ,

2 4

2 7 1 0 * 2 5 Z O , 2 8 0 2 o

2 5 2 5 1 O e 2 4 1 7 e 2 5 6 8 ,

CHARACTER

-

N

Y i X i 2 Y 2

1073

P T

4

5

6

.

r:

..-

,,

_ . .

, .

. ' .

..-..:

.

I

,.

. .

. .

,..'

2 1

2 9 0 0 . 2 7 1 7 , 3 0 2 3 ,

2 3 2 4 0 3 , 2 5 7 3 , 2 4 4 4 ,

24

2 2 5 3 . 2 4 1 0 , 2 2 5 9 ,

2 5 2 1 9 0 . 2 2 7 0 . 2 : 9 5 ,

2 2

2 6 3 7 i 2 6 8 3

o

271.6 o

2 6 2 1 4 7 i 2 0 4 0 , 2 1 4 4 ,

27

2 1 5 7 . 1 8 3 3 , 2 1 5 6 ,

2 0

2 2 1 7 1 1 6 5 3 , 2 2 2 6 ,

2 9 2 3 7 7 , 1 4 ~ 7 , 2 4 1 3 ,

3 0 2 5 8 3 . 1 3 5 0 , 2 6 5 4 ,

CHARACTER -

CHARACTER -

N

Y i

X i 2 y 2

1 2 0 0 0 1 8 0 2 * 2 0 0 - 0 ,

2

1 3 5 2 . 2 0 0 0 , 1 2 4 4 .

3

2 0 0 0 . 3 1 8 2 0 2 0 0 0 ,

3

0000705

8



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11 3615 i733 3 0 5 7

13 3831.1490.4109,

14 4O28.lØl16,4339,

1 5 4 2 4 8 , 1 4 4 9 , 4 59 5 ,

i2 3694 1.607 3950

16 4408.1572,4782.

17 4515.1772,4907,

18 4535.1989,4931,

20

4432.2392,4811.

1 9 4 5 1 ~ . 2 1 9 2 , 4 9 u a ,

2 1 4 2 7 9 , 2 5 2 6 , 4 6 3 2 ,

22 4089.2569,4411,

23 3909.2536.4201,

25 3615.2250.3858.

2 4 3 7 4 9 * 2 4 4 3 , 4 0 1 4 .

2 6 3 3 4 9 , 2 2 4 1 , 3 5 4 7 ,

28

3 0 6 9 . 2 5 9 í , 3 2 2 1 ,

27 3242,2424,3423,

2 9 2 6 4 9 , 2 6 8 8 , 2 9 6 4 ,

30 2 6 2 6 . 2 6 a a , 2 7 0 4 .

36 2 2 3 4 , 1 5 6 5 , 2 2 4 7 ,

37 2 4 2 1 , 1 3 7 5 , 2 4 6 4 ,

36

2634.1302,2713,

39 2894.1318,3016,

40

3091.1408,3246,

C H A R Ø ~ C T E R

N Y 1 XI2 Y2

1 2000. 8 3 3 , 2 3 U O ,

2

1 3 4 3 , 2 0 0 0 , 1 2 3 4 ,

3 [email protected],2000,

11 2097,1737,2096.

12 2523.2110.2564,

13 2717.2280,2809,

14 29fi7*2407,3031,

15 3137e222Oe3296,

9

21

3 7 8 7 , 1 3 0 7 , 4 0 9 8 ,

23

4 2 3 0 , 1 4 3 7 , 4 5 7 5 ,

22

4 0 3 3 1 3 4 0 4 3 4 6

24 43t33e1600,4754,

25

4480.1830e4067,

3 1 3 4 2 3 , 2 6 5 0 , 3 6 3 4 ,

16

3U97.2013.3253,

17 3107.1803,3264.

18

3187.1613,3358,

19

3330.1443,3525,



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ANNEX

C

(not part of the standard)

R E C OMME N D A T I ON

FOR

T H E I MP L E ME N T A T I ON

OF

OCR-B ON TYPEWR ITERS

The design of

OCR-B i s

based on fundamental aesthetic

laws

which, as far as feasible, correspond to the criteria emerging

from the long development of our classic typography. One of the essential principles prescribes that in a letter design all

vert ical parts must be heavier than the horizontal parts. This i s also true for so-called sans serif characters, that i s for a design

which

a t

first sight has a thread-like appearance. This i s precisely the case for OCR-B.

The OCR-B character setcan be implemented n twoclearlydifferent forms. It can be used

as

a font with constant-strokewidth

as

well as a letterpress font. Type engraving can be based on either implementation.

For printing devices like high-speed printers and similar machines, the centreline

i s

the skeleton along which a stroke of

prescribed width i s placed. It

i s

recommended to use

a

tool the diameter of which

is

equal to the strokewidth. The resulting

engraving is completely thread-like,

al l

strokes having an equal width. The aesthetic appearance as well as readability are

part ly diminished by this process.

In spite of strong technical limitations and difficulties, there is a tendency to design type fonts for typewriters which, as close

as possible, look l ike letterpress fonts. For this type of application it

i s

therefore strongly recommended to use a finer tool

and to base the design on the OCR-B letterpress font used

as

basic pattern. Using a tool with a diameter equal to half the

strokewidth, it should be possible to engrave types presenting most of the intended variations of the strokewidth. Furthermore,

the ends of the strokes, instead of being rounded, would then have

a

more rectangular appearance. Also, the internal angles

would remain more open. The whole character

set

then looks less mechanical and bears more resemblance to the typographic

forms to which the human eye has been accustomed for centuries.

Each manufacturer is, of course, free to take advantage of the aesthetic features of the letterpress font, depending on the

technical means

a t

his disposal and on his desire to achieve a more typographic appearance of the characters.

ISO 1073-2 2519.pdf

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Transcript of ISO 1073-2 2519.pdf