Brother MFC5890CN Service Manual page 64

Front end
Front end components and their main roles
- Piezoelectric plate
Applying a voltage stretches the plate, serving as the actuator for spraying ink. Consisting of
thin piezoelectric plates laminated together, this plate can be driven even by a low voltage.
- Filter
This removes foreign materials from the ink.
- Metal plates
These form the head nozzle pressure chambers, ink flow paths, and manifolds.
- Nozzle plate
This plate has a total of 470 nozzles--47 nozzles x 2 lines staggered x 5 rows (black x 2,
yellow, cyan, and magenta).
- Head driver
This flexible circuit board holds the piezoelectric driver chip.
Nozzle array (head bottom plate viewed from the bottom)
Print head travel direction
Yellow
Black
Black
Cyan
Magenta
Black
Black
Nozzles
3-13
Yellow Cyan Magenta
Channels
Confidential
(Nozzle)