Patent ID: 6179401
Filing Date: 2001-01-30
Classification: B41J

Abstract:
An inkjet printing system comprising:a scanning carriage;at least one printhead removably mounted in said carriage;a first sensor feedback device to determine whether said one printhead is installed in an operable position on said carriage;at least one off-carriage ink supply to which said printhead is periodically connected for periodically providing ink to said one printhead; anda second sensor feedback device to determine whether said ink supply is installed in an operable position in said printing system;at least one replaceable printhead servicing module positioned to engage said one printhead when said printhead is moved into a printhead servicing station; anda third sensor feedback device which includes a sensor on said carriage for reading indicia on said servicing module to confirm that said servicing module is installed in an operable position in said servicing station.