Modular printhead assembly with a carrier of a metal alloy

1. A modular printhead that comprises

an elongate carrier of a metal alloy;

an elongate fluid transporter received in the carrier and defining a plurality of channels that can each transport a respective type of fluid; and

a plurality of printing modules configured to be mounted to the elongate fluid transporter so that each printing module engages in fluid communication with each channel.

2. A modular printhead as claimed in claim 1 , wherein a flexible printed circuit board (PCB) is located between the carrier and the ink transporter, the PCB including data connections interfaced to the printing modules.

3. A modular printhead as claimed in claim 2 , further including a pair of bus located between the PCB and the ink transporter which can supply power to the printing modules.

4. A modular printhead as claimed in claim 1 , wherein the printing modules are received within the carrier, in the form of a channel member.

5. A modular printhead as claimed in claim 1 , wherein a capping arrangement for capping the printing modules is mounted on the carrier.

6. A modular printhead as claimed in claim 5 , wherein the capping arrangement includes a plurality of caps for each capping a respective printing module.

7. A modular printhead as claimed in claim 6 , wherein:

a pair of supports each engage a respective end of the carrier, and

a moving arrangement is supported by the supports and is operable to move the caps relative to the printing modules.

8. A modular printhead as claimed in claim 7 , wherein the moving arrangement includes a camshaft rotatably mounted with respect to the carrier.

9. A modular printhead as claimed in claim 1 , in which the carrier is of Invar.