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VS Print Cut Problem.
Hi all,
I have a major problem with my print & cut on my VS540. Had a Roland engineer here Wednesday because of an intermittent problem with the lineup of print / lam / cut jobs.
The engineer changed the motherboard and all seemed well when he tested, print (with align marks) and cut.
I am doing my first print / lam / cut job and the machine finds the first dot, then ass soon as it runs along the back edge of the rectangle, it moves forward 5mm and then rind off to the left looking for the next round dot, which it does not find. It goes all the way to the right and then rolls back the 5mm and starts looking from left back to the right of the machine. It finds the dot now on the left side of the print and then continues toward the right. Finds the edge of the rectangle and comes up with the message "Cannot find crop marks!"
Help, I have just got a job in where I have to produce 40 large 3ft sq print lam cut stickers and I cannot get this to work at all.
Any help, advice or ideas would be great.
Thanks,
Neil
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10 Replies
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I think the problem may be sorted?????
The engineer changed the voltage on the optic used to pick up the crop marks as it was way above spec.
The machine will find the crop marks on a print – remove then cut unlaminated vinyl.
I then tried the laminated print I was having the trouble with, still no joy.
I decided to turn off the lights in the office and use only window light and guess what.
It picked up the crop marks first time and cut perfectly.
I have spoken to the engineer and he will get someone out to sort it Tuesday as I have an urgent job requiring large print and cut images to be delivered Thursday.
I will update after the engineer visit.
Thanks for looking anyway.
Neil
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if there is any silvering of the laminate- air bubble or crease where the dot is, the eye will struggle.
is this laminate very glossy or thick stuff. and presume its on white vinyl. -
Chris,
No there was no silvering or anything like that. It is a gloss laminate, but I have used rolls of the vinyl and laminate since I got the machine last November. I was having a problem with the change back from TU2 back to ROLL. Allied to that problem, I was then getting a crop mark recognition problem. The only way to resolve was to power down and start the setup again. A few example of this type of problem had occurred in the UK too. That’s why the tech came to replace the motherboard and alter the optical sensor voltage as this had rectified the problems in the UK.
The only thing that had changed since it work 99.9% of the time was a new motherboard and the voltage change from 3.9 volts to 2.7 on the optical sensor.
Since speaking to the tech again, both himself and colleagues at Roland came to same conclusion as myself, the voltage on the optic. The optic uses the change in voltage as it passes over the black from white surround to identify the crop marks. 3.9 volts was outside tolerances and so was reduced to the correct voltage, 2.7v +-.2v
I have a tech coming out Tuesday as it is a bank holiday here on Monday.
Thanks for the comments.
Neil
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I had this a lot at first, but I found that if you don’t align the material properly, completely square in between the pinch rollers, the eye always misses the second dot. Also I alight the eye with the first set of marks by moving the media back and forth and moving the eye over the first set of marks, then I set that as the base point.
I also get much better results when I avoid putting laminate over the crop marks (I cut holes in the laminate where the crop marks are before laminating)
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Thanks for the info.
Just as a tip, I have a small Black & Decker Laser level that runs along the cutting strip so that you get a near perfect line up every time. That’s why this incident such a real pain in the behind.
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When we use gloss & gloss we often stick a small piece of matt laminate on top of the gloss laminate, directly over the crop marks.
One particular brand or combination (can’t think of the brand right now) gave us this problem repeatedly but when we used the matt patches it found them first time every time.
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Nick,
I will give that a try.
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i am sure the engineer will sort it.
a few years ago i was having some trouble with the eye and checked the voltage which was quite a bit different from the manual value so altered it. and it did not work at all, so put it back as i found it. for some reason it worked fine after that.
depending on the machines environment the eye may need cleaning, but has to be striped down to do it.
as said once in a while i come across the odd occasion that the eye does not want to work correctly, and a cut dot placed on top often works.common trick is to load the vinyl prior to print then use the cut off to cut a few ins off ensuring you have a square edge to reload too after laminating.
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Chris,
Thanks for that. The think the engineer should get it fixed, now that we seem to have it narrowed down.
Neil
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Just to let everyone know, the Roland Engineer called today and re setup the voltage on the optic for the print / cut alignment.
The voltage has been changed to 3.7 volts, above the recommended voltage
All is now fine. I am a happy bunny again and my hair is now growing!
Thanks everyone for reading. I didn’t realize how such a minor thing can cause so much heartache.
Neil
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