Zebra Technologies APL-I User Manual

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Commands
Print Commands
11/24/09
APL-I  Reference Guide
14177L-003 
Quantity Count, Set  
Purpose  To set the number of printed label batches.
Syntax  
<RS>n
Supported  
Based on testing, this command works the same on the Zebra printer with 
APL-I firmware as on the 3400D printer.
Notes  
Data increments and decrements occur between batches of labels. 
Important  If the quantity is out of range, error code 21 is generated.
Start and Stop Codes (Code 39), Print  
Purpose  To print a Code 39 bar code with no data.
Syntax  
<ESC><SP>
Supported  
Based on testing, this command works the same on the Zebra printer with 
APL-I firmware as on the 3400D printer.
Notes  
The printer erases all data in the current field.
Test and Service Mode, Enter  
Purpose  To switch to Test and Service mode.
Syntax  
<ESC>T
Supported  
Based on testing, this command works the same on the Zebra printer with 
APL-I firmware as on the 3400D printer.
Notes  
If this command is sent, any previously sent host data is erased. The printer enters 
Test and Service mode after the printer completes all jobs.
User-Defined Characters, Transmit  
Purpose  To send a graphic to the host.
Syntax  
<ESC>u
Not Supported  
This command does not work on the Zebra printer with APL-I, or it has 
significant deviations from the 3400D printer.