30 
 
4
4
4
.
.
.
2
2
2
 
 
 
C
C
C
l
l
l
e
e
e
a
a
a
n
n
n
i
i
i
n
n
n
g
g
g
 
 
 
t
t
t
h
h
h
e
e
e
 
 
 
P
P
P
r
r
r
i
i
i
n
n
n
t
t
t
h
h
h
e
e
e
a
a
a
d
d
d
 
 
 
If print quality declines (symptoms include non-compliant bar codes, print dropouts, and streaks) 
the typical cause is debris build-up on the printhead. Furthermore, when the build-up is not 
removed it may lead to reduced service life or printhead failure. Streaks in printed labels usually 
indicate a dirty or faulty printhead. 
 
To clean the printhead (using Datamax-O’Neil cleaning card): 
 
 
The following procedure is for “standard configuration” printers. Linerless printers should only be 
cleaned with the Datamax-O’Neil Cleaning Pen #770172-000.  
 
1)  Open the printer Cover. Remove any media installed in the printer. Open the Fan-Fold Door 
located in the bottom of the printer. 
 
 
 
 
 
Fan-Fold Door 
 
 
 
2)  Remove the cleaning card from its package. Insert the cleaning card through the Fan-Fold slot and 
into the printer as shown: 
 
 
 
 
 
Cleaning Card