Appendix A – Specifications  41 
Approved Media 
 
To achieve optimum print quality and maximum printhead life, Datamax-O’Neil specifies the use of Datamax-
O’Neil brand media and ribbons.  These supplies are specially formulated for use in our printers; use of other 
supplies may affect the print quality, performance, and life of the printer or its components. For a current list 
of approved media and ribbons for use in direct thermal and thermal transfer applications, please contact a 
Media Representative at (407) 523-5650. 
 
E
A
B
C
D
G
H
I
J
F
 
 
 
Description  Max
 [1] 
Min
 [1]
 
A Label width 
203 DPI: 4.25 
300 DPI: 4.12 
.75 
B  Backing width   4.4  .75 
C  Gap between labels  .25  .10 
D Label length  24
[3]
 .25
[4]
 
E Total thickness  .010
[6]
 .0025 
F  Notch opening width  --  .20 
G 
Distance from the center of the media to 
the center of media sensor aperture 
.1875   -- 
  with the Adjustable Media Sensor option 
Adjustable across full media width 
H  Reflective mark width
[2]
 4.4 .50 
I  Distance between reflective marks  24
[3]
 .25
[5]
 
J  Reflective mark length  .25  .10 
 
[1] 
Units of measure are in inches. 
[2]
 The reflective (black) mark must be carbon based, placed on the backside of the 
stock, and the reflectance shall be less than 10% at wavelengths of 950 and 640 
nm. 
[3] 
The label length may vary up to 99 inches with printable area not exceeding the 
maximum label length. 
[4] 
This distance is inclusive of the minimum gap between labels. Min length of 1.25 
inches (31.8mm) with optional Cutter installed. 
[5]  
This distance is inclusive of the minimum reflective mark. 
[6]  
.007 inches (.117mm) w/Standard Cutter.