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Faded lines raandomly on every print high quality
I have this annoying problem my sp540 when printing lets say dark night view for example will have faded areas where it shows the blue ink randomly around the print. I have new damper new heads new carriage board new head cables and i have sucked plenty of ink through the lines. No nozzles are missing but keeps happening.,. Oh encoder strip is spotless#??
PLUS can anyone tell me why I cant PM I have contacted admin twice to no avail, I’M SURE THEY ARE BUSY. I was asked for an engineers number on previous post but he does not want it spread out on the web so wanted to pm
regards PLEASE Someone tell me they know what it is?
E x
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14 Replies
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looks like a static problem are the two faded areas = in distance to 1 dia of the roll.
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NO but I think your onto something. maybe on the feed through its slipping, I’ll check again. the static never crossed my mind but it could still be that if the roller bars at back of machine are the same distance, I’ll earth just to be good and safe 🙂 Time to call the husband 🙂
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hi there, i think its all down to the heat of the room the vinyl is being stored in. i had this all the time on my new sp540i. it was happening on blues, greys and blacks. I then turned up the heating in the room, and aimed a fan heater towards the back of the printer and it sorted it!! let me know how you get on 🙂
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That also makes sense as the room just doesn’t seem to get warm at all even with heaters on. I’ll aim a heater at the back of the machine tomorrow I’ll let you know how I get on. Thanks guys. If there are any other ideas throw them this way before I waste more vinyl 😉
X
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Elena I cant help with your print problem but I think your membership level doesn’t allow pm’s you will be able to receive them but not reply.
Lynn
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Thank you Lynn I was under the impression I could? Never mind
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afraid not Elena just checked you need uksg to pm 🙄
Lynn
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Elena, just one more thing. I had this problem with lines running vertically down the print on almost all my prints. It was due to the material buckling.. if you look at the vinyl as its fed through the pinchers., see if you can see where it is raised. firstly lower the temp on the machine and then if they carry on horizontaly as mine did, loosen the material on the roll and heat before it gets to the head. This solved all my problems 🙂
hope this helps -
quote Chris Wool:looks like a static problem are the two faded areas = in distance to 1 dia of the roll.I ruined 25 meters of print for a similar reason. I had vertical and horizontal lines so the print looked more like tartan when finished, the pinch rollers were causing the vertical lines, and I could get rid by turning the temp down, however this is not a satisfactory solution as the heat is needed to allow the ink to "bite"
I never did find out what was really causing the horizontal fade, so would be great if you could elaborate Chris.Peter
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all the work we do with plastics static builds up around us and different environments discharges it better than others.
after weeding large letters quite quickly my bench can bite a little spray of water down the bench leg discharges it.some materials create static as they are unrolled on the printer more than others. banner and pull up materials i find the worst.
say you put a new roll of banner in and unroll about 5ft, start printing and as the 5ft is used you unroll a bit more whilst its printing i see a mark as shown. let the machine pull the roll it don’t do it.(but i don’t like doing that)also seen a row of text with like a slight halo around it look at it with a magnifying glass and you see the ink is scattered.
change materials and all ok again. -
guys all this info helps so thank you keep them coming as problem still there cheers guys 🙂
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Chris your spot on about the static I’ve had the halo effect before and attached a static bar to the print head surround that sits like a spring to the head assembly.. They should come standard with the versacamms but mine was a refurb and omitted by the time it reached my hands. So saying all this I do believe that your theory about the static for the banding horizontal lines makes a lot of sense I will keep you all informed in a few days after experiments 🙂
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I’ve got exactly the same problem (horizontal fading lines) so I’ll be interested in solution.
What is that static bar Elena? I’ve never heard about it.
Mike
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Hi Michael I’ve added a picture of my spare print head which has one you can add anything that conducts though. See picture
Its fits around print head screw and slides up through the hole of the plastic part on the head that then touches the head assebly which is grounded on the versacamms.
regards E
x
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