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Appendix C - Module File Definitions 
The following file formats can be stored using the SDIO or USB Host Ports. Once processed 
and stored onto a module, the external file extension is converted, when necessary, for 
recognition by the printer.  
 
Supported (External) File Types 
File 
Extension(s) 
Definition  Details 
SFL & SFP 
Industry standard format. Portrait/ 
landscape bitmapped font. 
The label name should contain the Font 
ID as last three digits before the file 
extension to allow automated 
conversion.  
BS 
Downloadable Datamax boot-loader 
upgrade file.  
Datamax specific format. 
TTF 
True type / scalable font.  Industry 
standard format. 
Label name should contain the Font ID 
as last two digits before the file 
extension to allow automated 
conversion. 
BMP, PCX, & 
IMG 
Black and white graphics files. 
Industry standard format. 
N/A 
 LS 
Downloadable language message file 
in a single or double byte format 
generated from an Excel spread 
sheet via macros.   
Datamax specific format. 
 PLG 
Downloadable plugin file containing a 
group of hidden encrypted or normal 
files. The file is generated via 
“img2dl” and “bfcart” utilities.   
Datamax specific format. 
ZS 
Downloadable compressed firmware 
upgrade download file.   
Datamax specific format. 
 F7B  7-bit Datamax image load file.     Datamax specific format.