X and Y offsets are the physical distances between the tips of the plastic and the composite nozzles at the Composer print head, shown in the picture below.
You need to go through XY offsets calibration once after composite or/and plastic nozzle replacement. In order to calibrate XY offsets, print the special service code NozzleOffsetTest.gcode from the external memory device supplied with your Composer printer. You can also download it from support.anisoprint.com
If the XY offsets are well-calibrated, the composite fiber is in the middle of the central cells, like it is shown in the scheme
If the composite fiber deviates from the middle position of the central cells, like it is shown in the reference scheme, you need to change your XY offsets values (i.e calibrate it)
In order to calibrate XY offsets, for every axis find the cell where the composite fiber is right in the middle as shown on the reference scheme (right picture). XY adjustment value for each axis is written near the corresponding cell. For the given example it is +0.3 for X offset and -0.4 for Y offset, which means that you need to add +0.3 to the original X offset and -0.4 to the original Y offset.
To change these values, go to Maintenance > Settings.
The new offsets will be
17.80 + 0.30 = 18.10 for X offset,
and -2.30 – 0.40 = -2.70 for Y offset.
After adjusting the offsets, reprint the offset test and make sure that composite fiber is in the middle position for both X and Y central cells.