MAINTENANCE
EPT024619 Issue 1 June 2016 5-3
Ink Cartridge Cleaning
Dirty working environments can contaminate the print heads and print
cartridges, affecting the quality of printed messages.
Why Ink Cartridges Require Cleaning
• Cured ink on the nozzle plate blocks or restricts firing. Ethanol and
aqueous varieties both have different De-Cap times; however, during
periods of inactivity without capping cartridges all varieties of ink may
begin to cure on the nozzle plate.
• Environmental contaminations from of the production line (e.g.
substrate fibres, dust, and ink spray) build up on the print heads and
print cartridges. The result can block nozzles and block electrical
contacts between the print head and cartridge.
• Abrasion on the nozzle face from particular substrates can damage
nozzles and block them during the production run.
It is important to ensure that the print heads and cartridges are kept as
clean as possible - free from substrate fibres, ink residue, and any other
contamination that can build up during production.
Therefore it is recommended practice to clean an ink cartridge before fitting
it to a print head and starting production. This ensures any dry ink residue is
removed from the nozzle face before printing.
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