Apps 4.0 - Spooler - Spooler troubleshoot (EN)

Why doesn’t my label or receipt print?

Go through the following checklist:

• Are there any error messages in the logs at the hub? undefined

• Are there any error messages in the list of commands?

• Is the printer connected to the network? undefinedundefinedundefinedundefined

• Is the printer set up with the correct IP address in the Spooler app? undefinedundefinedundefinedundefinedundefinedundefinedundefined

• Is the hub connected to the internet? undefinedundefinedundefined

• Is the right paper in the printer? Check if you have a direct thermal or thermal transfer printer in case of labels

• Is the paper in the printer the right way?

Barcode on the label occasionally printed wrong

Does a shipping label sometimes come out with a barcode that is not printed correctly or does not scan, while other labels from the same day are fine? Changing the print method of Spooler Desktop (the PrintNode client) may help. This is a workaround that solved the problem for users; the cause has not been established.

1. Open Spooler Desktop on the computer the label printer is connected to.
2. Go to the settings and find Default printing backend.
3. Set it to Engine 4 and save.
4. Print a few test labels and check that the barcode scans.

Can't find this setting, or does the problem still occur afterwards? Keep a wrong label and a good label from the same day and send us a photo of both.