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IBM Proprinter Manual To Operations page 118

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Attribute implies whether the character is ascending
or
descending.
If attribute
=
0, the character prints
with the top eight print wires of the print head
(ascending character). If
attribute
=
1, the character
prints with the bottom eight wires of the print head
(descending character).
Col.1 through col.JJ are the values of the vertical
columns of dots in each character.
Calculating Count 1, Count 2 Values for ESC =: To
calculate the values for count 1 and
count2:
1.
Calculate the total count with this formula:
total count
=
(number of characters x 13)
+
2
2.
If the total count is less than
256,
then count 1
=
total count and count 2
=
0. For example, for 2
characters:
total count
(2
X
13)
+
2 = 28.
count 1 = 28
count 2
=
0
3.
If the total count is greater than or equal to 256, then
divide the number of bytes
by
256. Count 1
=
the
remainder and count 2
=
the integer part of the
result.
For
example,
for 94 characters:
total count
=
(94 x 13)
+
2
=
1224
1224/256 = 4 200/256
count 1
=
200
count 2
=
4
4-31

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