XJ128 and XJ128 Plus Printhead
XJ128 Guide to Operation
Xaar Document no: D031010302 Version A
Page 11
2.5 Product support
Support for all Xaar products is available from Xaar. Please contact your regional office for further
information. Please refer to section 11 for details.
3 Product Description
The product description detailed in the next section provides a brief overview of the main
components that make up the XJ128 printhead. Greater detail is given in later sections of this
document.
3.1 Parts description
The XJ128 printhead is built up from the following basic components as shown in figure 3.1.
Figure 3.1 - Isometric views of the XJ128 printhead
3.1.1 Actuator
The actuator (not visible in figure 3.1) is located behind the nozzle plate and is the active element of
the printhead. The actuator consists of an array of ink channels, which are sawn into a piezo-ceramic
material. The actuator converts the electrical energy into a pressure wave necessary to eject drops
of ink.
3.1.2 Electrical connector
Interface to the outside user electronics.
3.1.3 Chassis
This is the mounting base for the mechanical assembly. The chassis has datum areas to provide
location of the printhead in a mechanical assembly. The chassis is thermally connected to the driver
electronics and is used to dissipate or provide heat to the printhead.
Nozzle plate
Cover
Coloured Insulator
Serial number
Electrical
connector
Ink inlet port
Chassis