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I have exactly the same problem. Managed to get out the drums, but now they wont even lock back and the error remains. Has this been resolved? It seems every couple of years somebody comes back with...

Thanks for reply, I'll try that and let you know if it helped.

hey,

i'm having the exact problem. bought the machine, i tried it at sellers place, it worked perfectly. then i transported it with a car and when i first turned it on it immediately gave me...

Hey, thanks for reply.

Yeah it's definitely a separator. Yesterday we did some tweaking of it with testing what the best position is, how far should it be from the drum etc. According to the...

Thanks Iowatech for reply!

Yeah I think plastic spindles might be it. Our drums are not in best shape and I noticed that spindles at some drums are a little damaged. Will look into it, thanks.
...

No one?

Hey there!

My GR3750 prints well but ever since I bought there are some wrinkled marks on prints. What is causing those is ofcourse wrinkled master paper on drum and I cannot find out what is...

Hey all!

I'm looking for pressure adjustment screw and gear for RISO GR3750. Looks like this:

http://cdn3.volusion.com/knszl.pruvt/v/vspfiles/photos/RU_017-11227-004-2.jpg

Please let me know...