SOLVED Error I2C_HEAD_COMM_ERROR, how to deal with?

[leliep 28]

The problems have been with two different Print Cores (0.4 and 0.8 ), but always in the same slot (#1, left side as seen from the front). I always double-checked the proper seating of the Print Cores ("click" after insert) and also checked the cable connection on the print head side, which didn't show any obvious problem.

Regarding the logfiles, I would like to send them to you via wetransfer, but need an email-address, could you please send it to me?

BTW, to be able to quickly collect the logs I have written a small shell script to run (on MacOS) after a problem occured; maybe it could be helpful for some other person:

 

#!/bin/bash## get_um3_status.sh## Collect relevant information from UM3 for troubleshooting purposes## 28-Aug-2017 First edition      -pl (peter.lelie@lelie.de)## define target IP addressUM3=192.168.yyy.xxx#DATADIR=$(date +%Y_%m_%d_%H_%M_%S)echo $DATADIRmkdir $DATADIRcd $DATADIR#curl --output log.txt http://$UM3/api/v1/system/log?lines=1000curl --output system.txt http://$UM3/api/v1/systemcurl --output head.txt http://$UM3/api/v1/printer/heads/0curl --output tempflow.csv http://$UM3/api/v1/printer/diagnostics/temperature_flow/10?csv=1#cd ..#

 

 

Posting logfiles would be helpful yes. If you use something like wetransfer it allows us to take a peek.

Also, just out of curiosity, what Print Core are you using? Is it always the same Print Core?

If you, for example, use AA in both slots, if you change them, what happens: is the error for the same Print Core, or for the same slot?

 

[Marco_TvM 34]

Use the menu to dump the logs to the USB stick instead:

System -> Maintenance -> Diagnostics -> Dump logs to USB

Then put them on wetransfer and put the link to those files to a personal message to me.

[Marco_TvM 34]

Hi,

I've checked the log files.

The conclusion we made is that the printhead cable has some failure.

Please contact the reseller to get this fixed.