OKI ML3390 01091308*01256402 User Manual
Product codes
01091308*01256402
Chapter 11: IBM - Graphics
11-11
Aspect ratio 1:1
bit number of the graphic byte
assigned printer pins
7 (MSB)
0
1 to
0
3
6
0
3 to
0
5
5
0
6 to
0
8
4
0
8 to 10
3
11 to 13
2
13 to 15
1
16 to 18
0 (LSB)
18 to 20
The initiating command sequence for printing the graphic determi-
nes one of the four resolutions.
nes one of the four resolutions.
When the aspect ratio 1:1 is chosen, the assignment of the bits of a
graphic byte to the pins of the print head depends on the resolution
selected.
graphic byte to the pins of the print head depends on the resolution
selected.
Graphics of single density with a aspect ratio of 1:1 have a resoluti-
on of 60 x 60 dots per inch. The assignment of bits of a graphic byte
to the pins of the print head is shown in the following table.
on of 60 x 60 dots per inch. The assignment of bits of a graphic byte
to the pins of the print head is shown in the following table.
bit number of the graphic byte
assigned printer pins
7 (MSB)
0
1 to
0
3
6
0
4 to
0
6
5
0
9 to
0
9
4
10 to 12
3
13 to 15
2
16 to 18
1
19 to 21
0 (LSB)
22 to 24
Graphics of double density with normal or half speed at a aspect
ratio of 1:1 have a resolution of 120 x 60 dots per inch. At this resolu-
tion, only 12 of the 24 pins of the print head are used per graphic
byte.
ratio of 1:1 have a resolution of 120 x 60 dots per inch. At this resolu-
tion, only 12 of the 24 pins of the print head are used per graphic
byte.
In order to increase the throughput, the printer, under certain con-
ditions, prints two graphic lines in one pass if this is possible.
ditions, prints two graphic lines in one pass if this is possible.
The following table shows the assignment of pins when printing
out a two-line graphic of double density in one pass.
out a two-line graphic of double density in one pass.