Inkjet printhead having rows of printhead segments
An inkjet printhead includes: a first row of longitudinally spaced apart first printhead segments, each first printhead segment having a plurality of nozzle rows configured for ejecting a plurality of different colored inks; and a second row of longitudinally spaced apart second printhead segments, the second row being parallel with the first row, each second printhead segment having a plurality of nozzle rows configured for ejecting a plurality of different colored inks The first and second printhead segments overlap in a media feed direction transverse to the first and second rows so as to provide seamless printing across a width of the printhead.
1. An inkjet printhead comprising:
a first row of longitudinally spaced apart first printhead segments, each first printhead segment comprising a plurality of nozzle rows configured for ejecting a plurality of different colored inks;
a second row of longitudinally spaced apart second printhead segments, the second row being parallel with the first row, each second printhead segment comprising a plurality of nozzle rows configured for ejecting a plurality of different colored inks,
wherein the first and second printhead segments overlap in a media feed direction which is transverse to the first and second rows so as to provide seamless printing for each of the different colored inks across a width of the printhead.
2. The inkjet printhead of claim 1 , wherein each printhead segment is mounted to a printhead segment carrier.
3. The inkjet printhead of claim 2 , wherein each printhead segment carrier comprises a plurality of ink galleries for supplying ink to the respective printhead segment, said ink galleries being defined by non-parallel walls extending along a length of the printhead segment carrier, said walls converging towards the printhead segment mounted on the printhead segment carrier.
4. The inkjet printhead of claim 3 , wherein said printhead segment carrier comprises four ink galleries separated from each other by three converging walls.
5. The inkjet printhead of claim 3 , wherein each ink gallery supplies a different colored ink to each printhead segment.
6. The inkjet printjhead of claim 3 wherein each printhead segment carrier is mounted to an ink manifold extending a length of the printhead.
7. The inkjet printhead of claim 6 , wherein the ink manifold comprises a plurality of parallel ink channels for supplying ink to each of the printhead segment carriers.
8. The inkjet printhead of claim 1 , wherein each printhead segment is connected to a power and data supply via connections positioned on an outer face of each printhead segment, said outer face containing the plurality of nozzle rows.
9. The inkjet printhead of claim 8 , wherein said connections extend longitudinally along an edge portion of the outer face.
10. The inkjet printhead of claim 9 , wherein each printhead segment is configured to receive the different colored inks via a backside face of the printhead segment, said backside face being opposite the outer face.
11. The inkjet printhead of claim 1 , further comprising a shield plate covering the printhead, the shield plate defining a slot in registration with each printhead segment.
12. An inkjet printhead comprising:
an ink manifold extending a length of the printhead;
a plurality of printhead segment carriers mounted on the ink manifold, each printhead segment carrier being supplied with a plurality of different inks from the ink manifold, each printhead segment carrier comprising a plurality of ink galleries, said ink galleries being defined by non-parallel walls converging towards a printhead segment mounting surface; and
a plurality of printhead segments, each printhead segment being mounted on a respective printhead segment mounting surface, each printhead segment being supplied with the plurality of different inks via the plurality of ink galleries.
13. The inkjet printhead of claim 12 , wherein the printhead segments are disposed in two parallel rows in a staggered overlapping arrangement.
14. The inkjet printhead of claim 12 , wherein the printhead segment carriers have complementary engagement formations.
15. The inkjet printhead of claim 12 , further comprising a shield plate covering the printhead, the shield plate defining a slot in registration with each printhead segment.
16. An inkjet printhead comprising:
a plurality of printhead segments disposed in two parallel rows in a staggered overlapping arrangement; and
a shield plate covering the printhead, the shield plate defining a slot in registration with each printhead segment.
17. The inkjet printhead of claim 16 , wherein each printhead segment is mounted on a respective printhead segment carrier, each printhead segment carrier comprising a plurality of ink galleries for supplying ink to the respective printhead segment, said ink galleries being defined by non-parallel walls extending along a length of the printhead segment carrier, said walls converging towards the printhead segment mounted on the printhead segment carrier.
18. The inkjet printjhead of claim 17 , wherein each printhead segment carrier is mounted to an ink manifold extending a length of the printhead.
19. The inkjet printhead of claim 18 , wherein the ink manifold comprises a plurality of parallel ink channels for supplying ink to each of the printhead segment carriers.
20. The inkjet printhead of claim 17 , wherein the printhead segment carriers have complementary engagement formations.