Operator`s manual
76  I-Class 
5.6.1  Cleaning the Printhead 
CAUTION 
 NEVER use a sharp, hard or abrasive object on the printhead. 
If print quality declines the typical cause can be traced to debris buildup on the printhead; 
left unattended, the printhead service life can be reduced. The printer can be programmed 
to remind you to perform cleaning (see Section 4.2.2.) Depending upon the media and 
printing parameters used, different cleaning methods are recommended. 
 Note: Streaks can indicate a dirty or faulty printhead. 
Proper cleaning is critical. To maintain peak 
performance of the printer, Datamax O’Neil offers a 
complete line of cleaning products including pens, 
cards, films and swabs. Visit our website at 
www.datamax-oneil.com to learn more. Certified 
Datamax-O’Neil – The worry free choice for 
optimal printer performance.  
Cotton Swab Procedure (for users of direct thermal media, or thermal transfer media with 
wax ribbon): 
A.  Turn OFF and unplug the printer. Open the cover. Raise the Printhead Assembly. Allow 
the printhead to cool before proceeding. 
Cotton
Swab
Debris
Buildup
Burn
Line
Printhead
Latch
Printhead
Assembly
Printhead










