DSF

You never said which 'ink' you are using Frankie?

If you're using 'fleabay' special sublimation ink then this can have a mind of it's own (my opinion, I had problems at the start - check out one of my earlier posts .............. others find it great), plus the paper you are using which can affect the transfer from paper to gas to mug.

Then if all that's right you can then finalise the timing and temperature.

Hi, sorry for not replying sooner.
I have Artainium+ ink with the correct ICC profile installed.
I the paper is from Coralgraph, where I got my mugs.

The white residue or 'dusting' cleans off when wiped with a baby wipe, though not with a dry finger.
I still don't know what it is though!

Any ideas would be welcome.

F