C o n t r o l C o d e s
A p p e n d i x B : P r i n t e r C o m m a n d s ( E s c a p e S e q u e n c e s )
❖
B-25
Figure B.3
Control Codes
Function
Symbol
Decimal
Value
Description
Backspace
B
S
8
Move one column left unless at left margin, in
which case no action is taken.
Horizontal Tab
H
T
9
Move to next horizontal tab stop. The tab stops
are at the left margin, and every eight columns
to the right of the left margin.
Line Feed
L
F
10
Move to next print line while maintaining
current column position.
Form Feed
F
F
12
Move to the first line at top of the next page
while maintaining current column position.
Carriage Return
C
R
13
Move to left margin on the current print line.
Shift Out
S
O
14
Select characters that follow from the current
secondary font until receipt of a Shift In.
Shift In
S
I
15
Select characters that follow from the current
primary font until receipt of a Shift Out.
Escape
E
C
27
Indicates the beginning of a special control
sequence (escape sequence).
Space
S
P
32
Move one column to the right unless already at
the right margin, in which case no action is
taken.
Control Codes
AUG-APPB Page 25 Black,Red,Cyan Saturday, January 21, 1995 7:10 PM
