Datamax-O'Neil DPL Programmer’s Manual - Manual (Page 11)

Overview
3
Typical Data Flow Sequence
The typical data flow sequence is summarized in the following bullets and detailed in the
table below. Printer Commands data is transmitted to the printer as shown in the table from
left to right, top to bottom.
 Status commands
 Configuration commands
 Download commands
 Label format
 Status commands
 Label reprint commands
 Memory cleanup
Typical commands used in the various stages shown above are listed in the tables that
follow.
Status Commands
Commands are available for retrieving stored label formats, updating data, and adding
new data. These techniques are used for increasing throughput; see G, Label Recall
Command “r”, and Label Save Command “s”.
Printer Commands Description Notes
A
“Status” commands: Get
Status, Request Memory
Module Storage
Information…
Optional,
bidirectional
communication
required for these
commands.
WG
O220
n
V0
“Configuration”
commands, download
image…
See Kc to
reduce configuration
commands
transferred
D
IApImagenameimage data...data
“Download” commands,
image, fonts…
RAM (temporary) or
Flash (semi-
permanent)
memory.
L Begin label
Existing label
formats may be
recalled. Label
header records are
not required.
D11
Label Header record
131100000500050Typical text field 01
Label Formatting Data
record –
Object type, orientation,
position, data
Q0001
Label Quantity
E Label Terminate record
A
Status command
Optional,
bidirectional
communication
required for these
commands.
U01new data for field 01
Reprint with New Data
Records
Used for fast
reprints.
E0005
G
xImagename
zA
Memory cleanup
Typically used for
temporary storage.