XJ128 and XJ128 Plus Printhead
XJ128 Guide to Operation
Xaar Document no: D031010302 Version A
Page 36
6.3.2 Cable lengths and signals
Cable and flat flexible flexi lengths should be kept to a minimum and the signals at the printhead
should be checked for noise and signal supply levels. Where (flexi) cables are used a maximum
length of 450mm is recommended.
Cables supplying control and power signals to the XJ128 printhead should be screened.
6.3.3 ESD and EMC considerations
Although the printhead has been designed with an ESD path it is possible that the discharge of any
electrostatic charge may corrupt the printhead data and or prevent the printhead from firing. It is
recommended that the printing system should be designed to minimise the build up of electrostatic
charge on the media. All printhead connector pins have ESD protection. The maximum protection
level is 2 kV. For further details ESD compliance, refer to Appendix C.
The printing system should be independently tested for EMC conformity.
Any consequences resulting from the use of this equipment in unapproved environments are not the
responsibility of Xaar. Xaar recommends that the compatibility of this equipment should be suitably
tested in each un-approved environment before use.