Error 203 means an invalid PPM value which refers to a problem with one of the calibration values that is calculated during the printer calibration step. PPM (pulses per millimeter) tells Palette™/Palette+™ how much to move each drive to drive 1 mm of filament.
To fix this error, we recommend the following steps:
- Make sure that you are using the most up-to-date version of Chroma™ and Palette/Palette+ firmware as older versions may be affecting the PPM values in your files. To check which version of firmware your Palette/Palette+ is using, access "Diagnostics" on Palette/Palette+'s screen. To update firmware, open Chroma and you'll find Tools > Update Palette Firmware.
- Re-calibrate your printer and Palette. The values in your MSF files may be too low, making the value invalid for Palette/Palette+ to read. To check your PPM value, open the MSF file created by Chroma. You'll see the PPM value near the top:
You can transpose this value on this website, which will convert the hexidecimal value to a decimal value. Please add 0x to the beginning of the hex number (Using this example, 0x4190a8a7). The PPM value should be around 30, so if you find a value which is much lower or higher, it would be best to re-calibrate.