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Latex 110, Paper Media Puckering/Buckling Results in Crease

#1 randy370 a month ago

We've been troubled with this for a while now. On many media's when we print as the paper exits the machine after being printed it puckers/buckles and that results in a crease in the finished and printed product. I will attach photos that will hopefully better show the issue. The photos are from printing onto HP Everyday Photo Satin and both were using the 12p6c110 media preset as downloaded from HP Media OS. While running a larger print job we experimented with lowering heat from the default 85C to 80C, 75C and 70C. The lower temperatures resulted in a few not fully cured areas in the solids so we increased the interpass delay to 200ms and that helped.

We also have similar issues with other print medias such as Drytac Vinyl and PETs from Sihl to name a couple. It always seems that there is this varying crease in the output which causes this. It creases in the same location most of the time, approximately 20 inches from the right side of the printer (looking at the printer).

In the past we had technicians check and confirm that all the fans are indeed working and outputting the same temperature. They also ensured that all vents and holes were cleaned and not clogged.

We're really stumped here and honestly suspect that there is something inherently defective with the printer straight from the factory. Thoughts?

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#2 HP Daniela Ciolompea a month ago

Hi @randy370,

It looks like there could be an issue with the vacuum or the heater. My advice is to contact your support representative to investigate further and escalate the case if need be.

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