Patent ID: 11886130
Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 11:
12. A positioning system for a print agent applicator comprising:
two positioning devices to support a common print agent applicator, wherein each positioning device comprises:
a mount to support the common print agent applicator;
an actuator coupled to the mount to apply a driving force at an actuation point on the mount;
a guide mechanism to guide the mount and the supported print agent applicator, under the driving force, to translate along a predetermined path towards a printing drum to form an engaging contact between the supported print agent applicator and the printing drum;

a first feedback control module comprising:
a sensor to determine a position parameter indicative of the position of the supported print agent applicator;
a controller to monitor the position parameter and to control the respective actuators of the positioning devices to control the position of the mount and the supported print agent applicator relative to the printing drum in response to the position parameter; and

a second feedback control module comprising:
a second sensor to determine a force parameter indicative of the driving force or an engaging force applied by the supported print agent applicator on the printing drum when the supported print agent applicator and printing drum are in engaging contact; and
a second controller to monitor the force parameter and to control the respective actuators of the positioning devices to control the driving force and/or the engaging force in response to the force parameter.