Printhead assembly having a ducting assembly and printhead titles
View Patent ↗Provided is a printhead assembly which includes a printhead module having a plurality of modular printhead tiles each having a plurality of micro-electromechanical nozzle assemblies for printing on a printing medium. The assembly also includes a number of printhead controller integrated circuits for controlling the printhead tiles, as well as a casing having an integral heatsink arrangement for the printhead controller integrated circuits. The casing further includes a ducting assembly for ducting ink to the printhead tiles and busbars for interfacing the printhead controller integrated circuits with a controller of a printer.
1. A printhead assembly comprising:
a printhead module having a plurality of modular printhead tiles each having a plurality of micro-electromechanical nozzle assemblies for printing on a printing medium;
a number of printhead controller integrated circuits for controlling the printhead tiles; and
a casing having an integral heatsink arrangement for the printhead controller integrated circuits, the casing also having a ducting assembly for ducting ink to the printhead tiles and busbars for interfacing the printhead controller integrated circuits with a controller of a printer.
2. A printhead assembly as claimed in claim 1 , in which the ducting assembly has a curable resin forming a seal between the ducting assembly and the printhead tiles, so that the printhead assembly is usable for page width printing applications.
3. The printhead assembly of claim 1 , wherein the ducting assembly includes a laminated stack.
4. The printhead assembly of claim 3 , wherein each layer of the stack has a number of apertures which, when the layers are stacked, provides ducts whereby ink can flow to the nozzle assemblies.
5. The printhead assembly of claim 1 , wherein the casing has an external ink interface for interfacing with an ink reservoir of a printer.
6. The printhead assembly of claim 1 , wherein each modular printhead tile has male and female end portions shaped and configured to receive a respective end portion of another printhead tile in a complementary manner.
7. The printhead assembly of claim 6 , wherein a curable resin serves as a seal between mated male and female end portions.
8. The printhead assembly of claim 1 , wherein the casing is of a material which minimizes electromagnetic interference with the control means.