PASSIVATION OF INK-JET PRINTHEADS

摘要

A process for the selective passivation of the channel walls (210,220) of a channelled inkjet printhead component (100) by the chemical vapour deposition of a passivant coating, the process comprising mounting said component in a support (130) in registration with a datum location (175) therein, the support having masking means (170) for masking selected areas of the component, and depositing the passivant coating on unmasked portions of the channel walls.