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Media rippling with heat
Hi,
I normally use Orajet 3164 for most of my printing, cheap and does the job for me.
When using 760mm wide there was always a little rippling I assumed this was caused by the heaters.
Now I have a larger machine and am using 1370mm wide it seems worse and I need to have the head quite high to stop it touching the vinyl.I store the vinyl in the same room as the printer.
Anyone else had this? Is it just this media? If so what is a better alternative?
Many thanks
john
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5 Replies
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Hi John.
as an interim fix. Lower the heater temp to the lowest you can get away with and speed up the print speed.
Had to do this for a while as some paper media I had rippled really, really badly. It now lives within 3 feet of a heater so I know it’s bone dry – previously just ‘stored indoors’.
Vinyl media too – cold stored was rippling like crazy – now it’s all kept in a heated room 24hrs.
Also make sure the pre/print heating platens are level and screwed down…
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Thanks David…….I have been playing trying to get setting that work…….
I had been printing slower not faster.John
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Funny you should bring this up now.
I have only recently discovered printing with the heaters all turned off.
Every print is now perfect. Previously, I have had issues forever, with uneven bands of slight difference in colour, specially when doing a fade or a very light print. Sometimes it is so subtle the laminate almost hides it, sometimes it is much worse. Never so bad I got head strikes though.
It used to be "Hold your breath and cross your fingers" every time a print went through the machine (Roland sp450v by the way) and I never thought to turn off the heat. I simply trusted the people who assembled the profiles and wished for a better printer.
Now with the heat off, I am almost relaxed.
I just have to make sure it is printing slow enough not to be sticky when it winds up on the take up roller.
I have always kept the material in the same room as we work, print, apply, design etc. It is comfortably warm and dry.
Incidentally, this seems to have cleared up the print and cut inaccuracies as well. So double bonus. -
Most of the profiles for our JV33 have 45 degrees for the pre heat but this does cause ripples in the media and an uneven ‘woodgrain’ like pattern in solid colours.
I’ve started to use a lower temp on the pre=heat plated of about 28 degrees to stop this happening.
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I have increased the pre/post heat settings and this seems to have cured it.
The vinyl is now pliable enough for the vacuum fans to pull it flat without any wrinkles.
john
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