Rena MACH 5 Operator's Manual page 29

7. To aid the cartridge priming process; wet the printhead nozzle surface, just before inserting the
printhead. Wet a lint free cloth with deionized or distilled water and then wipe the entire length of
the printhead nozzle surface with the wet cloth.
NOTE: The use of deionized water is preferred; however it is acceptable to use distilled water if
deionized water is not available. 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.
WARNING! Be careful not to wet the cartridge contacts during this process. Inserting a printhead
cartridge with wet contacts will result in damage to the printer's electronics. Make sure the
Printhead cartridge contacts are dry before installing the printhead.
Why is this step necessary? During the priming process a vacuum is created at the non-operator
side of the printhead cartridge. If the printhead nozzles are dry (open); air is pulled in through the
printhead nozzles causing the priming process to fail (printer is unable to create a vacuum to pull
ink into the cartridge). By wetting the printhead nozzles this creates a temporary "water seal",
which prevents air from getting sucked into the printhead during the priming process.
8. Carefully insert the printhead cartridge into the
compartment at an angle, with the print nozzle
surface facing down and the ink receptacles facing
towards the Ink Couplings and hoses.
9. Once the cartridge is fully inserted, gently rotate the
top of the cartridge to a vertical position, as shown.
DO NOT FORCE the cartridge into position. If it
does not rotate easily; check to be sure it is inserted
fully into the compartment.
10. Gently, close the Printhead Latch until it locks.
When the latch is lowered, the ink couplings
engage with the ink ports on the printhead
cartridge. The printer will automatically start
running a "printhead priming routine". During this
process you should see ink flow up the tubing, into
the printhead cartridge, and out the tubing on the
non-operator side. This may take a few minutes.
Make sure that ink is flowing through all five color
tubes at both ends of the cartridge.
SECTION 2
INSTALLING THE PRINTER
25