[Dave Bell]

quote Robert Lambie:

Obviously i do not know what media you are putting into the machine but there are a list of reasons this type of thing can happen and not just with a latex.

For now, let’s assume its because its a latex which uses a lot of heat to cure the prints…
you may be using a media that is not compatible with the machine.
lets take banner material. if this is a budget grade banner material it will rise, buckle etc due to the heat. not severely but enough that the heads may brush against the media on passes.

If the media has just been delivered, of has been in a cool/cold room overnight. you come in and stick it into the print and as the media comes into the hot throat of the machine, it begins to react due to it being cool. again creating head stikes/brushes as it passes over.

as i say there are many reasons, but there’s two to eliminate as i am doing this blind.
also remember to use your media clamps also…

a way to help reduce the puckering/swelling is to feed thru the media onto the take up system. doing this will create an even tension across the meda and helps prevent it lifting just as much.

Many thanks for that details explanation, Its helped alot,
It does seem if I add some weight to the media the issue doesnt happen, also running a foot or so of media through first also helps, However, not liking the wastage.

I have also tried with a lower heat setting which does help but still does happen occasionally.

I will ask specifically to my supplier if the supplied media is actually suitable for higher temps for latex.
Many thanks for youyr help mate