Overlay function set commands, An example of overlay nesting – Compuprint 4247-Z03 Programmer Manual User Manual
Page 213
Table 7. Code 128 Character Set (EBCDIC) (continued)
Character
Hex
Character
Hex
Character
Hex
Character
Hex
ENQ
2D
"
7F
{
C0
3
F3
ACK
2E
a
81
A
C1
4
F4
BEL
2F
b
82
B
C2
5
F5
SYN
32
c
83
C
C3
6
F6
EOT
37
d
84
D
C4
7
F7
DC4
3C
e
85
E
C5
8
F8
NAK
3D
f
86
F
C6
9
F9
SUB
3F
g
87
G
C7
FNC3
FA
SP
40
h
88
H
C8
DEL
FF
Note: All START, STOP, SHIFT, and CODE characters are generated by the printer in order to produce
the shortest bar code possible from the given data.
Overlay Function Set Commands
The overlay function set contains the commands the printer uses to store, delete, and present information
in the overlay memory of the printer. These commands are independent of any specific data types used in
defining the overlay.
The overlay is contained between the Begin Overlay (BO) command and the End Page (EP) command
and cannot contain itself. Overlays can be nested; that is, overlays can contain other overlays. The depth
of the overlay nesting cannot exceed five levels.
Figure 29 shows an overlay nesting.
The following commands are the overlay function set:
Command
Code
Description
BO
D6DF
Begin Overlay
DO
D6EF
Delete Overlay
IO
D67D
Include Overlay
The following pages describe the overlay function set commands.
Figure 29. An Example of Overlay Nesting
Chapter 4. IPDS Programming Information
193