Multi-feeding due to static ???

[BLADE]

Re: Multi-feeding due to static ???

the bypass might work better (or worse), the sep roller will be on the other side I think

[sandmanmac]

Re: Multi-feeding due to static ???

the bypass might work better (or worse), the sep roller will be on the other side I think

I guess time will tell......and just to add insult to injury, the paper is actually pre-printed on both sides, although they only re-print them on 1 side

[slimslob]

Re: Multi-feeding due to static ???

I guess time will tell......and just to add insult to injury, the paper is actually pre-printed on both sides, although they only re-print them on 1 side

Raised text against raised text? That sounds like something that is only going to work consistently in a high speed vacuum pick up system.

Another thought, K-3 mentioned Velcro but I think it might be too stiff to allow the tray to lift as the paper is fed out. I am thinking more along the line of foam separation pads like a lot of the old e-stats such as the Apeco Super Stat and Super Deuce used. Possibly at both ends of the side rails. They will of course require more frequent replacement that the rollers do.

[Gift]

Re: Multi-feeding due to static ???

Thanks Tim, I would have thought that too, but it's all 3 lower trays, less than 30k total on unit, and ONLY the preprinted paper.

If the machine works fine with standard office paper you should recommend that the customer should have a talk with that paper supplier otherwise you might end up with more calls. Perhaps the pre-printed paper has been treated with too much or a wrong type of separation-powder wich maked the sep roller in our ricoh too slippery. I had cases with preprinted papers that has been treated with something that felt more like sand if you rub too sheets against each other.

In case you are in mcgyver mood you can mod the paper feed units with old-style "grey" rubber pickup/feed/sep rollers, usually these work way better with special paper types. Just check your drawers for old ricoh feed/sep rollers and swap the tyres in case the roller assy doesn't fit on the shafts/axis.

[BLADE]

Re: Multi-feeding due to static ???

yeh, your cust needs to tel their supplier whats happenning and get new stock from a different printing process

[Mark Bbb]

Re: Multi-feeding due to static ???

multifeed can also occurring when the bottom plate pressure is to low

[sandmanmac]

Re: Multi-feeding due to static ???

Thanks for all the input on this!
After taking some time away and getting some advice here, I determined (or at least decided) that static wasn't likely the cause, but more likely an issue with the type of paper or the process it was manufactured.
I wasn't particularly interested in spending hours adjusting spring pressures, etc, and this is a T&M customer so I'm pretty sure they weren't either.
They're good people -just looking for some sort of solution or workaround because the paper source is out of their hands.
My hope was to be able to test it in the bypass, and there were reasons that I was unable to do so the other day, but today I was able to return and try that, and it fed beautifully.
I know it's a much different feed system, but it also uses those 'old grey style' rollers which were mentioned earlier, and may or may not be the reason.
Whatever the case, the customer is very pleased, as am I.

Often times, even if an exact solution can't be found, the additional input just helps a tech get pointed in a different direction in order to solve a problem, which is sort of the case here, and I did learn quite a bit about pre-printed paper too

Much appreciated!