Notice, Caution, Warning – Rena MACH X (Digital Color Label Printer) User Manual
Page 35

SECTION 2
INSTALLING THE PRINTER
 
29 
CAUTION!
• Use electrostatic discharge (ESD) handling precautions. 
• Hold the Printhead Cartridge by the handles ONLY. 
• DO NOT touch the ink couplings, nozzle surface or electrical contacts. 
• DO NOT unpack the Printhead Cartridge until the Printer is ready for 
installation. Once unwrapped, delay in installing the Printhead can 
compromise print quality due to dehydration. 
• DO NOT place an unwrapped Printhead on any surface before installing.
Protect the Printhead at all times from dust, fibers, dirt and other 
contaminants.  
CAUTION
DO NOT PRY OR MANUALLY LIFT THE PRINTHEAD COVER OR THE COVER 
MAY BREAK. ONLY OPEN THE COVER USING THE RELEASE BUTTONS ON 
THE PRINTER OR THE RELEASE PRINTHEAD COMMANDS IN THE 
SERVICES TAB OR MC SERIES TOOLBOX. 
NOTICE!
Read this procedure, in its entirety, before proceeding!
Before you begin this process, you will need to obtain some deionized or distilled water and some lint free 
cloths. These items will be used to wet the printhead nozzles. 
NOTE: Do NOT use tap water or paper towels to wet or clean the printhead nozzles. Doing so may cause 
damage to the printhead cartridge and possible contamination to the ink system. 
The printhead cartridge and ink supply must be within the 
operating temperature range ((+15°C to +35°C (59 °F to 95 °F)), 
before attempting to prime the cartridge with ink and starting to 
print. When stored at temperatures below the operating range it 
may take up to 3 hours for a cartridge in its packaging to reach 
operating temperature. 
NOTE: Additional packaging will increase the time needed to 
reach operating temperature. 
Why is it necessary to wet the printhead nozzles? 
During the priming process a vacuum is created by the pump, to pull ink from the Tanks into the printhead 
and ink delivery system. If the printhead nozzles are dry (open); air is pulled in through the printhead 
nozzles causing the priming process to fail (pump is unable to create a vacuum). By wetting the printhead 
nozzles this creates a temporary “water seal”, which prevents air from getting pulled into the printhead 
during the priming process. 
WARNING!
TO AVOID ELECTRICAL SHOCK OR SHORTING:
Before installing Printhead, make sure electrical contacts are DRY!
