The main difference between the Xaar GS 12 1002 and Xaar GS 12 1003 print heads

 The main difference between the Xaar GS 12 1002 and Xaar GS 12 1003 print heads is the XaarGuard™ technology. XaarGuard is a new nozzle plate protection system that helps to prevent nozzle clogging and extend the maintenance intervals of the printhead. The Xaar 1003 also has a new Tuned Actuator Manufacturing process that ensures consistent print quality across the entire print swath.

Here is a table summarizing the key differences between the two print heads:

Feature	Xaar GS 12 1002	Xaar GS 12 1003
Nozzles	1000	1000
Print swath width	70.5 mm	70.5 mm
Number of rows	2	2
Nozzle pitch (interleaved)	70.5 µm	70.5 µm
Drop velocity	6 m/s	6 m/s
Nozzle density (nozzles per inch)	360 npi	360 npi
Printhead weight (dry)	144 g	144 g
Ink type	Oil	Oil
Drop volume	12 to 84 pL	12 to 84 pL
Number of grey levels	8	8
Typical firing frequency	6 to 12 kHz	6 to 12 kHz
Dimensions (WxDxH)	125x30x60 mm	125x30x60 mm
XaarGuard™	No	Yes
Tuned Actuator Manufacturing	No	Yes

Overall, the Xaar GS 12 1003 is a more advanced print head that offers improved print quality, reliability, and maintenance intervals. It is a good choice for ceramic tile printers that require high-quality prints and long production runs.