Question about Riso RZ220 Duplicator

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Riso rc6300 registration not correct

Copies do not match the master copy

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Ou need to either advance (paper feeds quicker) or elay paper feed there has to be a registration adjustment

It can be as simple as adjustment of the feed wheels or some type of delay in the drum rotation
take alcohol and clean the feed rollers they may be slipping

Posted on Dec 30, 2008

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2)Always use original ink.
3)If you are a bit technical you can remove the pressure roller and strip all old ink buildup from it.was it with water ann soap.
If you open the drum and take it out completely,the pressure roller is the black roller inside the machine that put directly pressure on the drum.There is only one screw to loosen and then it hooked out,but it can be tricky to hook it back if you not doing it every day.

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Try run a hundred copies at slow speed and full density/ pressure.
If that fails get a can of WD40 and spray it under the master, then rub the area with your finger. this will desolve the dryed ink on the drum surface.
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Sep 09, 2008 | Riso RZ220 Duplicator

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Remove the master that is on the drum. Then check the master roll remove it cut about 18 inches off then re install master roll. hit the reset, then print bottons.

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I'm pretty sure this is a printer not a copier.

Take out the cartridge and turn it upside down, you will see a (Usually) green cylinder, does it have a ring of toner, or does it appear to have been scrathed ?
Take the copy and put it next to the drum, does the lines match? Then replace cartridge. 
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