The structure of the head rank code of the AccuFine I1600 print head has been changed.
Previously the 1st and 38th digits of the head rank were always fixed values of "0".
As of August 2023 heads with head rank values other than "0" on the 1st and 38th position will also be supplied.
This change in head rank is for internal management and has no influence on functionality nor on the performance of the print heads.
However in order to be able to enter these head ranks in the printers a specific version of FW and MSA tool will be required. Older versions will not accept other values than "0" on position
Targeted model / part:
| Printer model | Print head partnumber | Required FW version |
| XPJ-1341SR-P | DH-40694 | V 1.05 or higher |
| XPJ-1641SR-P | DH-40694 | V 1.04 or higher |
| XPJ-1341WR-P | DH-40559 | V1.05 or higher |
| XPJ-1642WR | DH-40559 | V1.09 or higher |
*Printers with I3200 print head are excluded.
When using the MSA tool to enter the head rank then MSA version 6.0.0 (to be released) or higher will be needed.