Epson LQ-2550 User Manual page 204

Control key chart
Some application programs can use control key codes for decimal values
0 through
27.
Key column indicates that you press the control key at the same time
you press the key for the letter or symbol in that column. For example,
you press the control key and A at the same time to send the value 1.
Note: Some application programs that use this system cannot use
Control-@, and many programs use the control keys for other
purposes.
Dec. Hex.
0 00
1 01
2 02
3 03
4 04
5 05
6 06
7 07
8 08
9 09
OA
10
OB
11
o c
12
OD
13
8-4
The table below gives you the proper values. The Control
Cntl. Key
B
C
D
E
H
K
Dec. Hex.
OE
14
OF
15
16 10
18
17 12 11
19 13
20 21 14 15
22 16
23 17
24 18
25 19
26
27
Command Summary
Cntl. Ke
S
V
W
X
Y
Z