Automatic Typographic-Quality Typesetting Techniques: A State-of-the-Art Review Page: 36
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designed with 1,000 fibers to the inch in each direc-
tion. We don't actually get a resolution of 1,000
lines per inch, but we can come pretty close . . .
and this resolution is beginning to approach the
kind of quality that a printer requires for his work.'""9
Moreover, "the fiber optics tube . . . can make
use of an external matrix which can be inserted at
will, so that you can change type faces, and have
control over your end product, as you do in a line
casting machine .. ".
As of a year or two ago, it could be stated:
"The RCA developments have been described
by Haynes who gives the design speed of 500 char-
acters per second or fifteen lines a second, with a
resolution of 400 lines to the inch (sixteen lines/
mm.), and a repertoire of 275 up to 500 characters
,n-line.' It makes use of the 'optical tunnel' to
improve the resolution of the system.""
Developments at CBS Laboratories, particularly
the cooperation with Mergenthaler from 1962 on-
ward, have been noted in the discussion on the
Linotron system. A related approach has been
described as follows: "The CBS Vidiac 389-10
generator with a standard fount of sixty-four char-
acters and the rather low resolution of ten lines per
1/8 in. character will work at a speed of 50,000 char-
acters a second. The modifications proposed for
Graphic Arts quality will aim at a resolution of
twenty line pairs per mm. and speeds between 1100
characters a second for 6 pt. and 200 characters a
second for 18 pt., with positional accuracies to
0.001-in. Basic character repertoire will be 256
chAracters, with alternative blocks of this size
readily available for simple switching in and out.""62
Another example is the Videograph Printer which
is produced by the A. B. Dick Co. This is a "high
speed electronic page printer which is available in
two types. One produces hard copy print out of
fully edited six bit digital information at speeds of up
to 20,000 characters per second. The other type
reproduces facsimile copies of graphic material
from video signals at rates of up to three 81/2" x 11"
pages per second. An electrostatic printing tube is
used in both types of printers." 63
"The Alphanumeric Printer consists mainly of a
character generator, an electrostatic printing tube,
image-fixing device, and the paper transport mecha-
nism. The character generator, which provides
video signals to the electrostatic printing tube is
essentially a cathode-ray tube having a matrix of
small diameter wires fused in and through its face
plate. The CRT electron beam, whose strength
varies according to the video signal voltage received
from the character generator, sweeps over the inner
ends of the tube face wires. Electron charges are
deposited through the wires onto the dielectric
coated paper thus forming latent electrostatic
lin '. 1963. p. 126.
SIbid., p. 126.
"Duncan, 1964. p. 136.
6' Ibid.. p. 136.
":' Buck et al.. 1961. pages VI-51.
"4 Ihid., pp. VI-51.
FIGUR( E 42. Benson-Liehner Transdata equipment.
"The Electrada Typoscope is a compact, non-
flickering display system . . . currently capable
of performing the display operation at rates of up
to 15,000 characters per second.
"Expensive and complex electronic storage and
character forming systems are avoided by utilizing
a unique shaped beam, direct-view storage tube.
Upon receipt of the code for a particular character,
the electron beam is passed through a stenciled
matrix, deflected to the desired screen location,
and stored within the tube by means of a suitable
dielectric mesh. A total of sixty-four characters
are available in this matrix. . . ."
"A Simpix electron gun can also be incorporated
in the Printapix system . . . designed to provide
extreme ease of character selection by accepting
six channel binary data from a computer and auto-
matically selecting the proper alphanumeric char-
acters. This can be done at rates of up to one
million characters per second. The size of the
character printed can be varied by means of one
voltage thus permitting the generation of subscripts,
capitals, and italics (by a slight rotation of the elec-
tron beam), etc., utilizing a single character matrix.
Extremely high resolution of up to some 150 to 250
printing lines per inch is possible. . . . By the use
of several tubes or several passes of the paper over
one tube, color can also be incorporated in this
print out system.""66
The Benson-Lehner Transdata (Figure 42) is also
included here because of its claimed high speed of
62,500 characters per second and its optional line
drawing and format superimposition features. The
usable character set, however, is limited to 63 char-
acters at one time, each defined by a 15 x 16 dot
matrix in CRT character generation. Three varia-
tions of character sizes and four different character
orientations may be program-selected. The 944
model is claimed to be compatible with various
magnetic tape transports and to accept binary-
" Buck et al., 1961., p. VI-39.
- Ibid., pp. VI-58.
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Stevens, Mary Elizabeth & Little, John L. Automatic Typographic-Quality Typesetting Techniques: A State-of-the-Art Review, report, April 7, 1967; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc13276/m1/44/: accessed November 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.