Question about Riso RZ220 Duplicator
My solids are uneven from the top of the page to the bottom. Is there any place that I need to clean within the machine to remedy this.
With regards to the uneven spot, the ink supply is a little bit lacking, try to increase the ink density, ot there might be some dried inks in the nozzle of the ink distributor inside the drum unit, open the drum and clean the holes of the bar inside the drum. another one is, your impression roller might have deformities, another is your metal screen is punctured and the last the screen might be clogged.
Posted on Dec 11, 2012
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Posted on Jan 02, 2017
Is this machine interfaced with the computer? if it is.. then it's nothing to do with the machine... Either it's the machine settings.. So you have selected letter size on the machine and ledger on the computer.. Something like this. The machine is probably fine..
Posted on Aug 12, 2009
Riso's are famous for this, i will scrub the rubber timing roll with rubber rejuvenator and clean the steel roll with alcohol.
the riso paper feed clutches are weak compared to what they were in the GR series you may have to replace the clutch.
Posted on Apr 25, 2008
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