IBM 4400 사용자 설명서
Form Feed
171
Form Feed
ASCII Code FF
Hex Code
0C
Dec Code
12
Purpose
Prints the data in the buffer, if any, then moves the paper to the
top of the next form.
top of the next form.
Comment
The logical print head moves to the left margin. This code
cancels all one-line-only emphasis and font controls: double-
wide from SO and ESC SO, and unidirectional printing from ESC
<.
cancels all one-line-only emphasis and font controls: double-
wide from SO and ESC SO, and unidirectional printing from ESC
<.
Graphics, Standard Density
ASCII Code ESC K
n1 n2
Hex Code
1B 4B
n1 n2
Dec Code
27 75
n1 n2
Purpose
Selects normal density bit image graphics of 60 dots per inch
horizontally and 72 dots per inch vertically.
horizontally and 72 dots per inch vertically.
where:
(
n1 + 256n2) defines the number of data bytes to follow.
DATA = ASCII characters for the dot pattern bytes.
NOTE: The DATA can be expressed in a format with the appropriate decimal
values of the ASCII characters supplied, especially in cases where
the dot patterns of nonprintable characters are required.
the dot patterns of nonprintable characters are required.
“DATA” consist of 8-bit dot columns, with the MSB at the top,
and “1” bits producing dots. For more information, refer to
Chapter 8, “Graphics.”
and “1” bits producing dots. For more information, refer to
Chapter 8, “Graphics.”
Comment
You can change graphics density with the ESC ? command.
Example
The following example produces a pattern of standard density bit
image graphics. The 9 data-bit pattern is repeated 27 times.
Compare this example to the double density and quadruple
density examples.
image graphics. The 9 data-bit pattern is repeated 27 times.
Compare this example to the double density and quadruple
density examples.