Printhead assembly arrangement for a wide format pagewidth inkjet printer
View Patent ↗A printhead assembly for a wide format inkjet printer includes an elongate support structure that spans a print media feed path. An ink supply assembly is mounted on the support structure and extends a length of the support structure. A plurality of printhead modules is mounted along the support structure, in an end-to-end manner, and in fluid communication with the ink supply assembly. Each printhead module incorporates an elongate printhead chip. The printhead modules are positioned on the support structure so that the printhead chips are capable of carrying out a printing operation on print media passing along the print media feed path. A plurality of print control arrangements is mounted on the support structure. Each print control arrangement is configured to control a number of the printhead chips and each printhead module includes a flexible data connector that interconnects each printhead chip of said number to the print control arrangement to facilitate relative angular orientation of the printhead modules and the print control arrangement.
1. A printhead assembly for a wide format inkjet printer, the printhead assembly comprising
an elongate support structure that spans a print media feed path, in use;
an ink supply assembly mounted on the support structure and extending a length of the support structure;
a plurality of printhead modules mounted along the support structure, in an end-to-end manner, and in fluid communication with the ink supply assembly, each printhead module incorporating an elongate printhead chip, the printhead modules being positioned on the support structure so that the printhead chips are capable of carrying out a printing operation on print media passing along the print media feed path; and
a plurality of print control arrangements mounted on the support structure, each print control arrangement being configured to control a number of the printhead chips and each printhead module including a flexible data connector that interconnects each printhead chip of said number to the print control arrangement to facilitate relative angular orientation of the printhead modules and the print control arrangement.
2. A printhead assembly as claimed in claim 1 , in which the elongate support structure defines a channel that accommodates the ink supply assembly, which is connectable to a supply of ink at one end.
3. A printhead assembly as claimed in claim 2 , in which the elongate support structure has a pair of opposed side walls and a floor wall, the printhead modules being positioned to span the walls and the control arrangements being positioned on one of the side walls.
4. A printhead assembly as claimed in claim 2 , in which the ink supply assembly includes a plurality of ink reservoir structures which are mounted end-to-end in the channel, each ink reservoir structure defining a number of elongate ink channels such that, when the ink reservoir structures are positioned in the channel, the ink reservoir structures together define elongate ink reservoirs that extend the length of the channel, each ink reservoir corresponding to a respective ink to be printed.
5. A printhead assembly as claimed in claim 1 , in which each print control arrangement includes a printed circuit board which incorporates a print engine controller chip and at least one memory chip.
6. A printhead assembly as claimed in claim 5 , in which the printed circuit boards are connected together with suitable connectors and an endmost printed circuit board includes a suitable data connector to permit data cables to be connected to the printed circuit boards.