A Digital Printing Network
We seem to be having an issue with the material feeding through our SP540 v. IN a 18" print we can be off as much as 1/4" left or right when cutting. I can actually watch the print being done and see the material move as it is fed through.
I have checked the pinch rollers, they are installed correctly and not cracked. Our dealer tech said something about a rail adjustment. Has anyone ever heard about anything like this or what to do to fix it?
Jim, is this happening in a continuous print cut job or a print, laminate cut job ? Have you done an env match and print cut calibration lately ? Does your machine have a cable or belt drive ? I know the cable tension can affect cut performance on some models. As far as rail adjustment I haven't a clue.
It is a continuous print cut job. We had a tech look at it last year they couldn't find anything wrong, but it has never been resolved, just gotten worse lately to where I have been had cutting what I can because it is just not reliable.
I thought maybe it was the roll, but it is happening no matter what material I put in.
The rail adjustment he said involved taking the left side of the machine off, sounded a bit odd to me, but I am not a tech when it comes to these.
We did the calibration and env match about a month ago, and everything looked good there.
I would guess he was referring to the belt or cable tension adjustmnet.
SP ?? v - sounds like the model with the cable. the cable adjust is done after the left side is removed. The cable has to be under specific tension and does loosen over time. There is a gauge that is required to set it again to the proper tension. The gauge will require you to have the tech do it. The later models went to a belt drive and adjusted from the same area - just done visually without a gauge. Not sure if this nothing more than confirm that what the tech told you was spot on.
You can only blame yourself for believing that the media will be perfectly straight in a large roll of media you ordered. We learned it the hard way making BIG mistakes during long prints for banners long time ago.Some will come utterly in a poor condition due to many factors during manufacturing of these medias as you may already know... Our solution to media moving left or right was to keep the media stabalized with the pinch guide rollers and the flanges to help guide the media across the print area smoothly to aid the feeding.
it might be worth while checking the encoder strip and maybe give it a light clean
Thanks everyone, I have been out of town for work and just getting back and caught up from engraving work to tackle this again.
We have tried the Print Cut Adjustment and all is fine there, just as it should be. I will try cleaning the encoder strip tonight and see what that does.
We do use all of the rollers we can use on every print so as to spread the pull wights as evenly as we can and have tried the material rollers and without still the same thing.
I have never had any illusions of the material always being straight on the roll, been around long enough to know everyone is different, but ever roll of all materials are doing this so it has to be something with the printer.
I am trying to get a Tech out to take a look as well, but the response is slow right now, hopefully it will get resolved soon and I will let you all know what was discovered and what fixed it.